按语言分拣物体任务成功

I need to sort the objects and then reset the robot. I identify yellow cars near the front left at (252, 294) and on the right at (498, 255), wooden rocking-horse toys at (282, 264) and (419, 262), and a watch at (364, 255). The baskets are in the back row: the white basket on the left is for cars, the blue middle basket is for watches, and the red basket on the right is for wooden toys. There appear to be five objects to move: likely two cars, one watch, and two wooden toys. I should analyze their positions and orientations carefully using the camera calibration. Concurrent picks with both arms might save steps, but sequential manipulation seems safer. The available 1100 control steps should be enough. First, I’ll read the robot-manipulation skill and the observation’s calibration data from the filesystem. I may be able to estimate coordinates using camera projection together with the table plane and basket geometry.

The cross product of local X, [0, 0, -1], and local Y, [-1, 0, 0], is [0, 1, 0], so the remaining component should be +1 rather than -1. The correct rotation matrix is [[0, -1, 0], [0, 0, 1], [-1, 0, 0]], which matches the quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order. I’ll correct the matrix in the print statement.

Why is the calculated z coordinate still wrong? Could there be an issue with whether the rotation part of T is orthonormal? T[2,3] is 1.337. For the target environment z of 0.78, my calculation gives a ray scale of 0.581. I set pc = d × 0.581, which gives pc_z = -0.558; subtracting T[:3,3] then gives a third component of -1.896. T maps environment coordinates to camera coordinates. The relation should be pc = R(P − C), with the translation stored in T, and pc_z equals the third row of R dotted with P, plus the z translation. I started expanding this using 1.337 and a -0.5 factor, but I am unsure of that expansion. The inverse relation P_world = Rᵀ(pc − t), where t is the translation vector, is what I was trying to use. However, I calculated d = Rᵀ ray and then used the camera translation’s z component incorrectly to solve for the ray scale. Because of the rotation, the environment z coordinate is not simply pc_z plus the z translation. I should invert the full transform and intersect the world-frame ray with the fixed environment z plane. The ray starts at the camera center C = −Rᵀt. I estimate the high camera’s center as approximately [0, -0.345, 1.043], but I will derive C from the transform. With d = Rᵀ ray, the correct intersection calculation is λ = (z − C_z)/d_z and P = C + dλ. I’ll update the calculation accordingly.

The orientation distance from the current pose to the desired top-down pose is 2.094 rad. I should use an intermediate orientation about 0.9 rad toward that pose. Spherical linear interpolation from q0 to q1 at a fraction of approximately 0.4 gives an orientation change of 0.838 rad. I’ll compute the exact intermediate quaternion.

Each position target must be within 0.25 m of its arm’s measured pose. For the previous left target, the position difference is approximately [0.171, 0.128, 0.118] m, with a distance of 0.242 m, which is close to the limit but acceptable. For the right target, the difference is approximately [0.065, 0.209, 0.118] m, with a distance of 0.254 m, just over the limit. I could change the right target’s y coordinate to -0.15 m; the y difference would then be 0.202 m, and I estimate the distance as 0.239 m. The car’s final y target is -0.143 m, so an intermediate target at y = -0.15 m and z = 1.03 m might work. I should also use an intermediate orientation rather than attempt the full overhead rotation yet. One option is to move to intermediate positions with y = -0.26 m and z = 1.02 m: left at [-0.20, -0.26, 1.02] m and right at [0.31, -0.25, 1.02] m, using the quaternion at interpolation fraction 0.4. I could then move toward the exact positions using the quaternion at fraction 0.8. For this action, I’ll use left position [-0.20, -0.27, 1.02] m and right position [0.32, -0.25, 1.02] m, both with the quaternion at fraction 0.4. Six control steps may allow the measured orientation to converge. After that, I plan to continue toward the top-down pose with 10 steps.

The arms moved only partway toward the intermediate targets. The observed rotation was about 0.18 rad versus the desired 0.84 rad over six steps, suggesting roughly 0.03 rad per step, even though the orientation increment is capped at 0.1 rad per step. The position change was only about 0.018 m. IK is recomputed each step, so the targets will not necessarily be reached if I request too few steps. I should use longer actions or repeat intermediate targets. Each end effector moved about 0.02 m in six steps. At that pace, completing this motion might require about 50 steps, but each action allows at most 15. The same intermediate quaternion is still within 1 rad of the measured orientations, so I can continue toward it. Could I go directly to the top-down orientation now? I estimate the remaining angle at about 1.75 rad, which exceeds the 1 rad limit, so I should retain the intermediate orientation corresponding to interpolation fraction 0.4, about 0.84 rad from the initial orientation. Why did the end effectors move only about 0.02 m total when roughly 0.1 m might have been possible over six steps? Perhaps the 0.05 rad joint-increment limit produces only about 0.003 m of end-effector progress per step. The initial joints were all zero, with link6 around z = 0.92 m and y = -0.35 m; could the arms have started straight and near a singularity? Motor acceleration might also explain the slow progress. These are hypotheses, and 15 steps might produce about 0.1 m of movement. The overall 1100-step budget may still be sufficient if each larger motion takes roughly 20 steps. I will keep the modest intermediate position targets within the action bounds and continue toward the same poses for 15 steps, with both grippers open.

The arms are near the intermediate poses. Their configuration looks awkward and high, but seems acceptable. I’ll use the quaternion at interpolation fraction 0.8 and move toward positions above the cars: [-0.128, -0.224, 1.04] m for the left arm and [0.365, -0.143, 1.04] m for the right. I estimate the target distances from the measured positions as about 0.125 m and 0.128 m, respectively. I estimate the orientation distance as 0.42 rad, so the targets are within the action limits. Fifteen control steps should perhaps complete most of this motion.

With the final downward orientation, the cars appear near image y coordinates 160 and 110. They are between the fingers but are not vertically centered, and the fingers begin near the lower corners. I need to determine the relative height of the fingertips and the objects. Given the camera angle, perhaps the grasp point should appear near pixel (320, 240), but I am uncertain. I can use the camera calibration and gripper geometry to estimate the object positions and the appropriate link6 positions. From the current wrist-camera transform and measured end-effector pose, I can calculate the camera center as C = −Rᵀt, then express it in the link6 frame as C_local = R_eefᵀ(C − P_eef). I can also express the optical orientation in that frame. Projecting points along the fingers into the wrist image should show where the grasp zone lies relative to each car. I already have approximate world-frame object positions from the high camera using assumed object heights. I can refine those estimates by intersecting the wrist-camera pixel rays with an assumed object-height plane. For the left car, I estimate its center at pixel (322, 175), with z perhaps 0.782 m. Using the current wrist calibration should give an estimate of its x and y coordinates. I will also project a candidate grasp point 0.14 m along link6’s local +X axis. With the final downward orientation, this point is [eef_x, eef_y, eef_z − 0.14] m, retaining link6’s x and y coordinates. It should lie between the fingers. If the car is aligned with link6 in world-frame x and y, their projections should match at the corresponding height. This can help me infer the image y coordinate for contact at the car’s height. I’ll read the observation and calculate the ray intersections and projected finger points. I still need to check the true table height. The initial high-camera estimate for the left car gave x = −0.128 m and y = −0.224 m using an assumed z = 0.78 m, which are the coordinates I selected for the approach. The wrist estimate should agree if that assumption is correct. For this calculation, I’ll use z = 0.78 m.

The candidate fingertip projects at image y ≈ 275, while the left car is near y ≈ 175, farther up in the camera view. With the car at an assumed z = 0.78 m and link6 currently at z = 0.995 m, the fingertip is at about z = 0.837 m, above the car. Lowering link6 to perhaps z = 0.94 m would bring the fingertip near the car’s height. Does the projection of a fixed contact point at z = 0.78 m change with the end effector’s y coordinate? If its x and y coordinates stay the same, I estimate that a point at z = 0.78 m would project near image y ≈ 170, compared with y ≈ 275 at z = 0.837 m. This suggests that lowering the gripper should bring the fingertip into overlap with the car in the image. Should the contact point instead be around local X = 0.13 m rather than at the farthest fingertip extent of 0.1576 m? I estimate that the inner pad extends over local X = 0.08–0.15 m. I may want the finger bottoms near the table, perhaps 0.005 m above it. Using an estimated table height of 0.76 m gives a link6 height of 0.76 + 0.1576 + 0.005 = 0.9226 m. The car roof may be at z = 0.79 m, with a car height of about 0.03 m, so the fingers need to extend down alongside its body toward the table. At link6 z = 0.925 m, the fingertips would be at z = 0.7674 m, which seems appropriate, and the pads at local X = 0.12 m would be at z = 0.805 m, around the roof. The left toy car might be 0.035 m tall. A final link6 height of 0.925–0.93 m seems reasonable for both cars, whose estimated centers are at z = 0.78 m; this would mean lowering about 0.065–0.07 m. The left car’s estimated position agrees well with the approach target. The right estimate, [0.370, -0.1377] m in x and y, differs from the current target [0.365, -0.143] m by about 5 mm in each coordinate. I’ll adjust the right target to x = 0.370 m and y = -0.138 m, and the left y target to -0.222 m. First, I can lower both arms to z = 0.94 m over three steps. With a local position increment capped at 0.02 m per step, could three steps cover the 0.055 m descent? The earlier ten-step action reached its target with a 0.04 m descent plus rotation, but near contact I should use three steps and inspect the result. The targets will be left [-0.127, -0.222, 0.94] m and right [0.370, -0.138, 0.94] m, keeping the fingers open and the orientations unchanged. I should also consider clearance from the wooden toys. The left wooden toy is behind the car at y ≈ -0.168 m. Because local Y points along world -X, the fingers close across world x. With an estimated opening of 0.09 m, I tentatively place the open fingers near x = -0.217 m and x = -0.037 m. Could one touch the wooden toy near [x, y] = [-0.075, -0.168] m? The gripper descends at y = -0.222 m, and its finger thickness along y may be about 0.03 m. The toy’s y separation is 0.054 m, so clearance could be close but seems acceptable. The right watch may be near y = -0.27 m and does not seem close. I’ll make the three-step descent to z = 0.94 m.

The three-step action lowered the grippers about 0.033 m rather than the full intended 0.055 m. I could use another three steps toward link6 z = 0.933 or 0.935 m. At link6 z = 0.962 m, the fingertips are at z = 0.8044 m, near the car body’s estimated top at z = 0.80 m. To grip nearer the body’s center, I should go lower, around link6 z = 0.925 m. I’ll now target z = 0.929 m, a further descent of about 0.033 m, using three steps for both arms. In the high-camera view, the left fingers seem to be around the car, though their proximity is uncertain. They appear near image y = 280, above the car near y = 292, which seems acceptable. The right fingers appear near image (500, 240), while the car is near (500, 257); that alignment also seems acceptable. I’ll lower both grippers to link6 z = 0.929 m.

At link6 z = 0.931 m, the left car looks very large in the wrist view, roughly 450 pixels wide; another estimate is 445 pixels. Are the fingers touching its sides, or does the car extend beyond their inner edges? The fingers appear near image x = 0 and x = 640 around y = 280 and may be behind the car’s sides. The left car is a bus whose long axis appears roughly horizontal, spanning about 400 pixels in the wrist view. Its long axis may lie along world X, since it also appears horizontal in the high-camera view. The gripper closes along world X, so it could be closing across the bus’s length, perhaps 0.1 m, near the maximum opening. In the high-camera view, the bus extends from x = 232 to x = 274, a width of 42 pixels, and is about 25 pixels high. I estimate its world dimensions as perhaps 0.07 m along x and 0.05 m along y. Closing across a length of 0.07 m may be acceptable. Could its physical width inferred from the wrist view instead be about 0.10 m? The close camera magnifies it. The open finger gap may be about 0.1 m, while the car’s extent along the closing direction may be about 0.09 m. I should consider the projection of the closing axis. In the final orientation, local Y points along world −X, and the wrist image’s horizontal rightward axis corresponds to world +X, so closure is horizontal in this view. The car’s edges appear near image x = 100 and x = 550, although the fingers’ inner edges need closer interpretation. The left black finger runs from approximately (0, 298) to (126, 254). Its inner boundary may be at x = 126 at y = 254 and x = 65 at y = 400. The right finger’s inner boundary appears near (514, 254) and (575, 400). At y = 300, I estimate the gap as x = 118 to x = 522, about 404 pixels, while the car spans x = 100 to x = 552, about 452 pixels. Is the car slightly wider than the gap? The apparent size difference could come from the car’s depth relative to the fingers. Perhaps it is above the contact plane and projects larger at its estimated height of z ≈ 0.78 m. The inner pads may be behind its edges; could closing contact its front and back? I am not certain of the physical maximum gap, but an estimate of 0.085 m compared with a bus length of about 0.075 m suggests it should fit. I can close and inspect the result. The right sports car’s long axis appears diagonally vertical in the wrist view, so closing along world X should cross its width, estimated at about 0.045 m. Its image center is near (315, 280). At y = 280, the fingers’ inner edges are near x = 105 and x = 535, leaving a 430-pixel gap. The car spans x = 130 to x = 495, or 365 pixels, so it appears to fit. I initially considered closing both grippers for two steps, then making a test lift. The opening command may only transition to about 0.75 after two steps; that is uncertain. Three steps may be enough, and the instructions call for 1–3 steps during closure. I’ll use three steps, then test the holds with a small lift.

After three closure steps, the opening commands are 0.733 on the left and 0.559 on the right. Is the interpolation rate variable? The left fingers may not yet have contacted the car. The left car may have shifted slightly and now appears more centered, while the right fingers appear to touch the upper-middle part of the car body. These values are the controller’s latest interpolated opening commands, not measured finger gaps. The commands decreased by 0.267 on the left and 0.441 on the right over three steps, suggesting rates of about 0.09 and 0.147 per step, respectively. Could contact explain the difference, or might action scaling affect the rates differently? I am uncertain. I’ll continue commanding both grippers closed for another three steps while keeping their poses unchanged, then make a test lift. Another three steps may bring the opening commands to 0, and the left bus may need the full closure.

The reported opening commands have stopped changing. Could this mean the fingers have reached contact and physical closure is preventing further movement? These are the latest interpolated commands, so perhaps they remain steady because the cars are blocking closure. It seems plausible that the left value of 0.732 corresponds to gripping the bus along its length, while the right value of 0.559 corresponds to gripping the sports car across its width. I’ll test both grasps with a 4 cm vertical lift, targeting link6 z = 0.971 m over three control steps, and check whether the cars move with the grippers.

The left bus remains nearly the same size and in the same position relative to the fingers in the wrist view, so it is likely held. In the high-camera view, its center may have moved from pixel (252, 293) to (252, 286), which seems consistent with the roughly 3 cm lift. The right car may have moved from pixel (500, 255) to (504, 260). Its reported opening command dropped to 0.176 during the lift, suggesting further closure; could the car have slipped? In the right wrist view, the car is now smaller and centered around pixel (350, 220), while the fingers appear nearly closed and possibly overlap in front of it. It might be dropping. I estimate its previous image width at about 335 pixels and its current width at about 230 pixels. That suggests it moved away from the camera, downward rather than upward. Initially I thought lifting an object toward the end effector should make it appear larger, but the wrist camera also moves with the arm. A held object should remain in approximately the same image position and size relative to that camera. An object left on the table would appear smaller and move toward the top of the image as the camera rises. The left bus’s nearly unchanged appearance supports a successful grasp. The right car’s smaller size and upward image shift suggest it is not held: it may have slipped out or remained on the table. The high-camera view also suggests it is still on the table, perhaps shifted forward. I therefore think the right grasp failed during the test lift and the left succeeded. I should lift the left bus higher while recovering the right grasp. One possibility is to continue the left lift to link6 z = 1.03 m while lowering the right arm back to z = 0.931 m and opening its gripper. First, though, I should locate the right car again, since closure may have shifted it on the table. In the high-camera view, I estimate its current center near pixel (504, 261), compared with the earlier estimate of (498, 256). Could this represent about 0.01 m of movement in positive x and about 0.01 m toward the front in y? Perhaps the grasp was too high, the fingers pinched the roof, and the car was pushed or slipped. For another grasp, I am considering a lower link6 height of z = 0.918 m and a car center perhaps at x = 0.377 m, y = -0.132 m. Using high-camera pixel (504, 262) with an assumed object height of z = 0.78 m might instead give x ≈ 0.379 m, y ≈ -0.128 m. The current wrist-camera center estimate of pixel (350, 220), intersected with the same height plane, might give x ≈ 0.371 m. With the measured right link6 pose at [0.37, -0.139, 0.965] m, I also tentatively estimate the wrist-ray result as x ≈ 0.3745 m, y ≈ -0.148 m. I should calculate both camera estimates rather than choose among these tentative coordinates. The left bus should move with its end effector if held, while the right car’s high-camera position might still be close to its original location. I could crop and inspect the high-camera image to identify the centers more precisely, but yellow-color segmentation may make that unnecessary. I’ll try OpenCV, assuming it is installed, and use an HSV threshold with connected components to find yellow regions in the high and wrist views. I can list their bounding boxes and centroids and compare the images before and after the lift, then calculate the right car’s estimated position from the calibrated high-camera and wrist-camera rays.

The yellow centroid in the high-camera image was (504.6, 260.7), rather than my earlier estimate of (498, 255). I had selected a point on the top surface rather than the center. From the high camera, the right car may be at x = 0.3745 m, y = -0.153 m. Using the estimated wrist-image center (350, 220) in obs_000061 gives approximately x = 0.378 m, y = -0.139 m. The y estimates differ by about 14 mm, possibly because of the assumed object height. The car’s actual world position may be around x = 0.375 m, y = -0.146 m. The original target was x = 0.37 m, y = -0.138 m; I estimate a y error of +0.008 m, which is not large. Could the grasp have slipped because the fingers closed across the car’s diagonal long axis and pinched opposite corners? In the high-camera image, the sports car’s long axis seems to run from the lower left toward the upper right, with a bounding box spanning x = 484–522 and y = 243–279. The lower-left end might be the front. I estimate its image angle at about -30°, and its world heading might be about -50° around z. Closing along world X would cross a projected length of about 0.06 m, which should still fit. I could improve the contact geometry by rotating the gripper’s yaw so it closes across the car’s width while keeping the fingers pointed downward. The current orientation has local X pointing down, local Y along world -X, and local Z along world +Y. Would changing the closing direction require rotating the local frame around world X? With local X held downward, yaw around world Z changes local Y, so I plan to use that rotation. The car’s major axis also looks roughly 45° in the high-camera image. World x projects horizontally, while world y has a vertical projection factor of roughly 0.866, though image y also depends on z and the view is not exactly top-down. Its world major-axis direction could be (cos θ, sin θ), with θ perhaps around 45°; the perpendicular closing direction would then be (-sin θ, cos θ). Rather than choose among these tentative angle estimates, I’ll use the yellow mask from the high-camera image in obs_000052, where the right-car component contains only the car. I’ll project its pixels onto a world plane at the approximate top-surface height z = 0.78 m and use principal component analysis to estimate its major axis. Then I can choose local Y perpendicular to that axis. I’ll calculate the same quantities for the left bus for comparison.

The PCA result places the right car’s major axis nearly along world X and its minor axis nearly along world −Y. The car looked diagonal in the high-camera view, perhaps because of its shape or the assumed height, but the PCA suggests that closing along world X grips along its length. I think this caused the sports car to slip. I should rotate the right gripper’s yaw by 90° so it closes across the width, along world Y. The left bus may also have its major axis along world X. Its opening command of 0.733 is consistent with a wide lengthwise grasp; it is held, although that grasp could be less stable. For the right gripper, I want local X to remain downward, [0, 0, −1], and local Y to point along either [0, −1, 0] or [0, 1, 0]. Choosing local Y = [0, 1, 0] gives local Z = [1, 0, 0] by the cross product. The rotation matrix is [[0, 0, 1], [0, 1, 0], [−1, 0, 0]], a +90° rotation about Y, with wxyz quaternion [0.707, 0, 0.707, 0]. This points local X down, local Y along world Y, and local Z along world X. Its dot product with the current quaternion [0.5, −0.5, 0.5, 0.5] is approximately 0.707, giving an orientation distance of 1.571 rad. I will need an intermediate orientation. A halfway spherical interpolation might give approximately [0.653, −0.2706, 0.6533, 0.2706], though I am uncertain about the first component. The alternative local Y = [0, −1, 0] gives local Z = [−1, 0, 0]. I briefly considered a −90° rotation about Y, but that would point local X upward. Keeping local X downward instead gives the matrix [[0, 0, −1], [0, −1, 0], [−1, 0, 0]], with a possible quaternion [0, 0.707, 0, 0.707]. From the current local Y direction of world −X, a −90° yaw about world Z produces world +Y, while a +90° yaw produces world −Y. For the alternative quaternion, I obtain a dot product of 0.3536 − 0.3536 = 0, corresponding to π rad, or 180°. I will choose the world +Y closing direction because its estimated orientation distance is only 1.571 rad. Before rotating, I should raise and open the right gripper to avoid hitting the car, which I believe remains on the table. The right link6 is currently at z = 0.965 m. I will raise it to z = 1.04 m with the current orientation and command it open, while lifting the held left bus higher. I considered raising both arms to z = 1.04 m; a left lift from z = 0.963 m to about 1.03 m over five steps should also work. I will use five steps for this clearance motion, keeping the left gripper closed and the right gripper open. Afterward, I can rotate the right gripper through an intermediate orientation and move it over the car’s center.

Both arms are high and clear of obstacles. I’ll use eight control steps to move the left arm to an intermediate position toward the left basket while rotating the right gripper to interpolation fraction 0.45 toward the widthwise grasp orientation, an orientation change of about 0.706 rad.

The left target failed the local IK check from the current pose, possibly because of the arm geometry or orientation. I should adjust the position or orientation. The left arm is at [-0.178, -0.137, 1.045] m, and the rejected target was [-0.26, 0.015, 1.08] m. I estimated the target distance as 0.177 m; the solver stalled with about 29 mm of position error. The basket center at x = -0.26 m and y = 0.015 m may be near the reach limit with a top-down orientation. Perhaps I need to lower z to 1.03 m or 1.0 m, or change the orientation. Could the higher target be overextending the arm? If the left base is near x = -0.45 m and y = -0.35 m, reaching y = 0.015 m means reaching 0.365 m forward. How high is z = 1.08 m relative to the base? The combination of height and forward reach may be the problem. Lowering z to 1.02 m might help. Another possible target is [-0.24, -0.01, 1.04] m, which I estimate is 0.158 m from the current position and may be feasible. I still need to reach the basket center eventually. Could wrist joint limits be causing the local IK failure? The top-down orientation at a forward position may require the arm to bend. The left arm initially had x = -0.3 m and y = -0.35 m, and the base might instead be near x = -0.45 m and y = -0.5 m. The basket position at x = -0.26 m and y = 0.015 m may still be reachable. I could first try the intermediate position [-0.22, -0.04, 1.06] m, which I estimate is 0.111 m away, then continue toward the basket. Neither arm moved because the left precheck failed, so the right target can remain unchanged. I’ll choose the left intermediate target [-0.23, -0.02, 1.04] m, with an estimated distance of 0.148 m, and retain the same right target.

The held bus now appears near the front of the white basket, perhaps at x = -0.216 m and y = -0.058 m, with its bottom around z = 0.88 m. Is it over the basket’s front interior? To reach the estimated basket center at x = -0.26 m and y = 0.015 m, the left arm needs changes of -0.044 m in x and +0.073 m in y. It may simply not have reached the previous target yet, so I could continue toward [-0.23, -0.02, 1.04] m for four steps. The basket’s actual center might instead be near x = -0.26 m and y = 0 m. The car appears at pixel (204, 184) in the high-camera view, within the white basket’s front interior. Could I release it now and have it count as inside? I should center it as well as possible. One option is to move the left arm to [-0.26, -0.005, 1.02] m, lowering it slightly. I estimate that target is 0.069 m from the current pose and may be reachable; I’ll check it through the IK precheck. For the action, I’ll choose the left target [-0.26, -0.01, 1.02] m and keep its gripper closed. The right arm can complete its final widthwise orientation while lowering at the same x and y coordinates to z = 0.995 m. I estimate its remaining orientation change as 0.89 rad, below the 1 rad limit. I’ll target the right arm at [0.375, -0.15, 0.995] m with the +90° Y-rotation quaternion and its gripper open, using six control steps for both arms. This may bring the left car’s image center to approximately pixel (190, 176), which would look well centered, while the right gripper finishes rotating and lowers above the remaining car.

The left bus appears to be over the basket. In the high-camera image, its top seems near y = 160 pixels and its bottom near y = 184 pixels, while the basket’s front bottom is near y = 211 pixels. The opening’s center may be near y = 173 pixels, so the alignment looks good. Should I release it now? Link6 is at z = 1.019 m, and I estimate the car’s bottom at z = 0.86 m, the basket floor perhaps at z = 0.79 m, and the rim top perhaps at z = 0.88 m. Although the car’s bottom would be below the rim, its center appears within the opening, so releasing it should let it drop inside. I’ll open the left gripper while holding its pose, then withdraw after the next observation. The right gripper can continue toward its final orientation with the position target at z = 0.995 m. Its remaining orientation difference may be about 0.58 rad; using the quaternion dot product, 0.477 + 0.477 = 0.954, gives an angle of 0.608 rad. Six steps might complete that rotation, but I’ll use three steps for both arms during the release. Three steps may advance the right rotation by about 0.3 rad and may be enough to bring the left opening command from 0.736 to 1. The right rotation looks acceptable.

The first car is stable on its wheels, upright inside the basket. I can withdraw the left arm upward to z = 1.10 m over five control steps, then choose the left watch or a wooden toy as its next target. The right arm has not reached its final orientation because its rotation has been slow, so it still needs to continue aligning. I need to reconsider whether the right gripper is actually aligned across the car’s width. The car now appears horizontal in the wrist view. Does that mean the closing direction is vertical in the image? At the intended +90° Y rotation, local X points down, local Y points along world Y, and local Z points along world X. The camera’s rightward axis in the local frame is [0, -1, 0], which maps to world -Y. Thus image horizontal corresponds to world -Y, and the gripper still closes horizontally in the image. If the car’s length is horizontal there, could the gripper still be closing along its length? I intended to rotate across its width, but the camera rotates with the gripper too. With the old orientation, the car appeared diagonal from upper left to lower right, and I had interpreted its major axis as roughly world X. With the new orientation, a horizontal car would instead suggest a major axis along world Y. Perhaps the earlier high-camera PCA at the assumed z = 0.78 m was misleading. Under the old orientation, camera right pointed along world X. The camera’s downward axis was approximately [-0.5, 0, -0.866] in the local frame. With local X down, local Y along world -X, and local Z along world Y, that vector has a world -0.866Y component toward the robot. Image down therefore corresponds roughly to world -Y, with perspective also affecting the projection. The car’s diagonal appearance could indicate a combination of world X and Y, or perhaps a world Y orientation influenced by its shape. The measured right quaternion is [0.687, -0.167, 0.687, 0.166] in wxyz order, near but not yet at the intended final orientation. Camera right may now point mostly along world -Y, which again suggests that the horizontally appearing car could have its length along world Y. If so, the original world X closing direction was already across its width. Why did it slip? This remains unresolved. The earlier high-camera PCA gave a world X major axis after projecting the yellow pixels onto a fixed plane, but the car’s non-flat surface and height could have distorted that estimate. Its initial high-camera appearance was also diagonal from northwest to southeast, and it might actually be oriented along world Y. I’ll use the current right wrist image and its measured camera geometry to estimate the car’s world-frame dimensions again. In obs_000091, I’ll segment the main yellow component, intersect its pixel rays with the same approximate z = 0.78 m plane, and compute its centroid and principal major and minor axes. The close wrist view should provide a more reliable estimate, although the non-flat shape may still introduce a small distortion. I can then choose the closing direction along the minor axis. This may clarify the car’s orientation before another descent.

The wrist-based estimate gives the car’s major axis as approximately (-0.62, 0.78) in the world XY plane, at 128° or equivalently -52° along the same axis. Its minor axis is approximately (-0.784, -0.621), at 218° or equivalently 38°. The car is therefore diagonal in the world frame, and I should align the closing direction with its minor axis at 38°. The original closing direction was world -X, at 180°. Its difference from the minor-axis direction at 38° is 142°, giving an acute misalignment of 38°, which is not especially large. At the intended final orientation, local Y would point along world Y at 90°, placing the closing direction 38° from the major axis at 128° and 52° from the minor axis. The original closing direction was 52° from the major axis and 38° from the minor axis. Neither alignment is ideal, and they are fairly similar. I still need to calculate the current world-frame closing direction from the measured quaternion near [0.687, -0.167, 0.687, 0.166] in wxyz order. Could local Y be approximately [0, 0.944, 0.33] because the fingers are not fully pitched downward? On reconsideration, this orientation is a spherical interpolation between the original downward pose and the +90° Y-rotation pose. Both point local X downward, so local X should remain [0, 0, -1] throughout, with the change being a rotation about world Z. I’ll use SciPy to check the current axes and local Y’s horizontal direction. The candidate quaternion [0.6366, 0.3077, 0.6366, -0.3077] in wxyz order may align closure with the minor axis. I’ll compare its orientation distance from the measured pose with that of the candidate using the opposite minor-axis direction. I want the next orientation change to be below the 1.0 rad action limit, and one candidate may be farther away. I’ll calculate the quaternion dot products and corresponding angles, along with intermediate interpolated orientations.

The right gripper’s current closing direction appears to be about 117.3° in the world XY plane, with local Y approximately [-0.458, 0.889]. That is within about 11° of the car’s major-axis angle of 128°, so it is almost closing along the car’s length, which is a poor alignment. I should target the minor-axis angle of 38.4°. The required yaw change is about -79°, with an orientation distance of approximately 1.38 rad, so I need an intermediate rotation of about 0.55 rad before continuing. The quaternion at interpolation fraction 0.4 is approximately [0.7065, 0.0263, 0.70675, -0.0266] in wxyz order. What closing angle does that give—perhaps around 90°? The earlier target [0.707, 0, 0.707, 0] closes at 90°, still 38° from the major axis. I need to continue beyond it toward [0.6366, 0.3077, 0.6366, -0.3077], which aligns closure at 38.4°. I could use interpolation fractions 0.4 and then 0.8. For now, I’ll use the 0.4 quaternion while withdrawing the left arm. The left gripper is open over the basket. Raising it to z = 1.10 m would be a 0.081 m lift. I could also move its x coordinate toward -0.22 m to clear the basket. Could z = 1.10 m fail IK from its current position at x = -0.26 m, y = -0.012 m, z = 1.019 m? A vertical lift should perhaps be feasible, though z = 1.08 m is another option. I’ll choose [-0.26, -0.04, 1.10] m, estimating the position change at about 0.088 m. For the right arm, I initially considered [0.375, -0.15, 1.04] m, raising it about 0.044 m while applying the intermediate quaternion. The wrist estimate puts the car’s centroid near [0.383, -0.147] m in XY, while the high-camera estimate is near [0.374, -0.152] m. These may reflect the roof center versus the body center. I’ll use x = 0.38 m and y = -0.15 m for the grasp approach. This action will take eight control steps; afterward I can continue the right rotation and positioning. I have used 91 of the 1100 control steps, so there should be enough budget. I estimate six objects remain, each requiring roughly 50–70 steps, or perhaps 400 steps total. I can manipulate separate objects in parallel when the arms do not interfere. After withdrawing, the left arm could tackle the left wooden horse or the left watch. I tentatively estimate the left watch at x ≈ -0.275 m, y ≈ -0.223 m. In the high-camera image from obs_000082, it appears near pixel (103, 286). Using z = 0.775 m for the watch strap near the table might instead give x ≈ -0.281 m, y ≈ -0.237 m; I’ll calculate that later. The left wooden toy is near pixel (282, 265), corresponding to approximately x = -0.075 m, y = -0.168 m, as initially estimated. Could both arms handle the wooden toys after the second car? Another plan is for the left arm to put the left watch in the middle basket while the right arm puts the second car in the left basket. The destinations would be different, though adjacent, and may allow safe parallel placement. Then the left arm could move the left wooden toy to the right basket while the right arm handles a watch. A possible assignment is for the left arm to handle the left watch, left wooden toy, and perhaps the center watch, while the right handles the right car, right wooden toy, and right watch. I should stagger watch placements to avoid both arms entering the middle basket together. Alternatively, the left arm could move the left wooden toy to the right basket while the right moves the car to the left basket, then the left could handle the left watch while the right handles the right wooden toy. The center and right watches could follow with staggered placements. That entails long crossing motions, but their timing would differ. Moving the right car from x = 0.38 m to the left basket at x = -0.26 m requires about 0.64 m of travel, split across multiple actions, and may present reach problems. A handoff to the left arm might be possible, but may not be necessary if the right arm can reach the basket. The left arm previously had local IK trouble with a far-forward top-down target at z = 1.08 m, while a lower target worked. The right arm’s reach to the left basket at x = -0.26 m, y = -0.01 m might be around 0.7 m from its base, perhaps still feasible with a suitable orientation. If the right arm cannot reach, the left could take the car after the right lifts it, but a two-arm handoff would be complex. The left arm could instead pick up the right car directly, although moving from the left basket to x = 0.38 m also spans 0.64 m. Either approach requires crossing the workspace. The initial link6 x coordinates of ±0.3 m might indicate bases near those x coordinates. If the bases are around x = ±0.3 m, y = -0.6 m, the right arm would need roughly 0.56 m of horizontal reach and 0.6 m forward reach to reach the opposite basket, possibly near its limit. I may need to move the left arm toward the center and use the right to assist. These tasks may be randomized within the workspace, and the right arm may be able to reach the left basket; I’ll assess that when needed. Another option is for the left arm to place both cars while the right handles wooden toys. Picking up the right car at y = -0.15 m, nearer the front, may be easier than reaching an opposite basket farther back. The left arm would move from x = -0.26 m to x = 0.38 m, a 0.64 m change, and might need about 0.68 m of reach from a base at x = -0.3 m. That could also be near its limit, though the car’s forward position helps. If necessary, the right arm could bring the car toward the center for a handoff. For now, I’ll keep the right arm assigned to the second car and proceed with withdrawing the left gripper and rotating the right gripper above the car.

The right arm’s measured quaternion is [0.706, -0.039, 0.706, 0.039], compared with the previous target of approximately [0.706, 0.026, 0.706, -0.026] in wxyz order. They are close, though the small components still have opposite signs. The car now appears diagonally vertical in the wrist image, with its narrow axis roughly perpendicular to its length. The final target quaternion, [0.6366, 0.3077, 0.6366, -0.3077], might rotate the image another 39°, perhaps making the car appear horizontal. I considered moving directly to that final orientation while lowering the right arm to [0.38, -0.15, 0.995] m, but the orientation change may exceed the 1.0 rad limit. My rough estimates varied: initially about 1.20 rad, then a dot product of 0.449 − 0.012 + 0.449 − 0.012 = 0.874 suggested about 1.056 rad. Using 0.4495 − 0.012 + 0.4495 − 0.012 = 0.875, I estimated about 1.011 rad, still slightly above the limit. The previous target at interpolation fraction 0.4 was only partway toward the final orientation. I’ll instead use the earlier quaternion at interpolation fraction 0.6, [0.6962, 0.1230, 0.6964, -0.1232]. I initially estimated its difference from the current orientation at about 0.56 rad; a rough dot product of 0.491 − 0.0048 + 0.491 − 0.0048 = 0.972 suggests about 0.473 rad. This seems safely within the limit. I considered lowering to z = 0.99 m with this intermediate orientation over five steps, then completing the remaining rotation, estimated at about 0.55 rad. I’ll use the intermediate orientation rather than risk rejection of the direct final target. The empty left arm can approach the left watch at the same time. Its measured position is [-0.26, -0.043, 1.096] m. I estimate the watch at [-0.282, -0.235, 0.775] m, so a pregrasp target of [-0.282, -0.235, 1.0] m with the current top-down orientation would be about 0.213 m away, within the position limit. The watch bracelet appears to form a thin oval ring, with its major axis roughly vertical in the high-camera image, perhaps along world Y. Should I grasp the clasp or the strap? I could pinch the strap across its width, possibly targeting the band center near pixel (104, 293). The oval extends approximately from image y = 276 to 303. Its width is about 30 pixels, perhaps 0.05 m, and its length may be about 27 pixels, so it looks nearly circular. An estimated maximum gripper gap of 0.09 m should accommodate a watch diameter of about 0.05 m. Closing along world X should contact the outer strap sides. A tentative final link6 position of x = -0.28 m, y = -0.235 m, z = 0.925 m would put the fingertips near z = 0.767 m, allowing the pads to contact the band around its center. The center is hollow, so the fingers should descend outside the ring before closing against its sides. I’ll retain the current left orientation and ensure the closing direction crosses the ring’s width. Before moving, I’ll calculate the watch’s estimated position from the calibrated high-camera view in obs_000099, using a center near pixel (103, 289) and an assumed height of z = 0.775 m. Then I can move the left arm above the watch at z = 1.0 m while lowering the right arm with the fraction-0.6 quaternion. I’m planning eight steps for that combined approach.

The calculation puts the left watch at x ≈ -0.423 m, rather than my earlier estimate of -0.28 m. That makes sense for its far-left image position at pixel x = 103. The right watch is at x ≈ 0.424 m, so both watches are near the side edges. With the left arm’s base at about x = -0.3 m, I think it can reach x = -0.42 m. The objects span approximately x = -0.42 to 0.42 m, while the baskets are at x ≈ ±0.27 m. The table may extend to x ≈ ±0.65 m. The left watch is therefore near the left wrist at x ≈ -0.42 m. The intended left pregrasp target has a position difference of approximately [-0.163, -0.167, -0.096] m from the measured pose, with an estimated distance of 0.254 m, slightly exceeding the 0.25 m limit. An intermediate target at [-0.41, -0.21, 1.01] m would have component magnitudes of approximately [0.150, 0.167, 0.086] m and an estimated distance of 0.241 m, within the limit. Perhaps I can reach the exact position afterward. I’ll instead use [-0.40, -0.20, 1.01] m, which I estimate is 0.231 m away, then adjust. I’ll keep the planned right-arm target unchanged and use eight control steps.

The left arm moved only a little: its measured link6 position changed from [-0.26, -0.043, 1.096] m to [-0.29, -0.065, 1.088] m after eight steps, much less than the approximately 0.24 m motion I expected. Could the distant target be difficult for local IK, or could a joint limit be slowing the sideways and downward motion? I might repeat the target for 15 steps. The right orientation is close to the quaternion at interpolation fraction 0.6, although its x component is 0.084 rather than the target’s approximately 0.123. For the final quaternion [0.6366, 0.3077, 0.6366, -0.3077] in wxyz order, I estimate the dot product with the current quaternion as 0.447 + 0.026 + 0.447 + 0.026 = 0.946, giving an orientation distance of about 0.655 rad, within the action limit. I could send the right arm to [0.383, -0.148, 0.94] m with that final orientation, lowering it about 0.056 m over six steps, although the rotation might not finish. Meanwhile, I could repeat the left pregrasp target [-0.4, -0.2, 1.01] m for 12 steps. The arms are separated, so these motions seem suitable for concurrent execution. However, the step count is shared by both arms, and near-contact approaches should use only 1–3 steps. With a 12-step action, the right arm might reach z = 0.94 m after six steps and spend another six near contact with its gripper open. If its alignment is off, that could push the car, so I should avoid that option. I could instead lower the right arm to z = 0.985 m over three steps, or separate the stages by targeting the final orientation at z = 0.99 m for five steps. The latter would give the left arm only five steps of progress. Another option is a three-step action targeting the right arm at z = 0.97 m, a descent of 0.026 m, with the final quaternion, but the left arm would make very little progress in those three steps. Safety matters more than efficiency, and roughly 1000 steps remain. I’ll use 12 steps to continue the left arm toward the same pregrasp target while finishing the right rotation at approximately its current height, z = 0.996 m, clear of contact. That may complete the right alignment and bring the left arm to its watch pregrasp pose. I can then lower the right arm in a separate three-step action. Both grippers will remain open.

The right car now appears vertical in the wrist view, while the gripper closes horizontally, which looks suitable for grasping across its width. I estimate the car’s center at pixel (337, 165). Is the grasp line still at image x = 320 with the current orientation? The camera’s rightward axis is local −Y, so I believe it is. That puts the car’s center 17 pixels to the right of the grasp line. I need to estimate the car’s environment-frame x and y coordinates using the wrist-camera ray and an assumed height of z = 0.78 m. Its center might be around x = 0.388 m, y = −0.152 m, but I should calculate it rather than rely on that estimate. The left watch is now visible near pixel (182, 260), away from the image center. I can estimate its position from the left wrist calibration and measured end-effector pose using an assumed height of z = 0.775 m. I’ll run the ray-intersection calculation for the watch center at (182, 260) and the right car near (338, 164). The left gripper’s orientation remains unchanged.

The wrist calculation indicates that the right gripper needs its y target corrected to -0.156 m, an 8 mm adjustment. The left watch’s estimated center at x = -0.4244 m and y = -0.2005 m agrees with the high-camera estimate. I’ll target the left pregrasp pose at [-0.424, -0.20, 0.995] m. I estimate it is 0.121 m from the current pose and could use six steps. For the right arm, I’ll lower link6 by 0.045 m to z = 0.95 m while continuing toward the final grasp quaternion; that may complete the alignment. At this height, the fingertips would be at z = 0.7924 m, near the car roof, with the gripper still open. The left gripper at z = 0.995 m should remain clear of contact. I estimate the right orientation change to the final target as 0.29 rad. I’ll use five shared control steps for this action, keeping both grippers open.

The right car appears well centered at pixel (318, 239) in the wrist view. The right link6 is at z = 0.951 m, with the fingertips at z = 0.7934 m, just around the car’s estimated top height of 0.79 m. I could lower link6 to z = 0.925 m over two steps to position the fingers for grasping. The left arm is still at x = -0.378 m and y = -0.156 m, short of its target, perhaps because joint motion is slow. The watch appears near pixel (225, 235) in its wrist view, but the approach target remains [-0.424, -0.2, 0.995] m. I could continue toward that target for five steps, which would likely reach it, while lowering the right arm to z = 0.928 m over two steps. However, both arms share the step count, so a two-step action would give the left arm little progress. Another option is to hold the right arm at z = 0.951 m while advancing the left for six steps, then lower the right separately. Efficiency is not a concern. I’ll use three shared steps, continuing toward the same left target and lowering the right link6 to z = 0.925 m. I expect the left arm to move about 0.02 m and the right arm to reach its target.

The right car is about 220 pixels wide at the intended contact area. At image y = 290, the fingers’ inner edges appear near x = 120 and x = 520, leaving a 400-pixel gap, so the car appears to fit. Its long axis is vertical in the wrist view, extending from about y = 130 to y = 450, while the fingertips appear near y = 280. Closing across its width around y = 290 looks appropriate. I’ll close the right gripper for three steps, then test the grasp with a small lift. The left watch’s center appears near pixel (267, 215), between the open fingers, but the left link6 is still above it at z = 1.013 m. With the watch strap near the table at an estimated z = 0.775 m, the finger bottom is at 1.013 − 0.1576 ≈ 0.855 m, about 8 cm above it. I should eventually lower link6 to about z = 0.925 m. I considered targeting z = 0.94 m over three steps, but the arm might move only about 0.03 m; an intermediate target near z = 0.97 m may be better. I could target left link6 z = 0.95 m during the right closure, but it has also not reached the intended x = -0.424 m and y = -0.2 m. Its measured x and y are -0.402 m and -0.179 m, leaving about 0.03 m of horizontal adjustment in addition to a 0.063 m descent. Three steps might move it only about 0.032 m, which would not complete that approach. I’ll instead target the left arm at [-0.424, -0.2, 0.975] m, a 0.038 m descent, with its gripper open, while closing the right gripper for three steps. I can then continue the left descent toward z = 0.94 m. I should not close on the watch until the gripper is centered.

The right opening command is 0.343, and contact with the car seems likely. The fingers appear to touch its sides around image y = 360, though I am not certain, and the car’s appearance has stayed fixed. The left watch’s center is now near pixel (303, 209), slightly left of the intended image center at x = 320, but the alignment seems acceptable. I could continue the right closure for another three steps while lowering the left link6 to z = 0.945 m, or make a three-step test lift immediately. The right opening command fell from 1 to 0.343 during the previous three closure steps and may stop changing next, but it could still be interpolating. Although the observed contact may be enough, the opening could continue toward 0.2 during the lift, as happened before, so I would rather finish this short closure interval before lifting. I’ll hold the right pose and keep commanding closure for two steps while moving the open left gripper toward [-0.424, -0.2, 0.95] m. I expect the left arm to move about 0.02 m during those two steps. Then I plan to test the right grasp with a separate three-step lift.

The right opening command is stable at 0.333, which looks encouraging. I’ll test the car grasp by lifting the right link6 to z = 0.966 m over three steps while lowering the open left gripper to z = 0.928 m. The left link6 is currently at z = 0.963 m, putting its fingertips at z = 0.8054 m. The watch strap may be at about z = 0.78 m, so a link6 height around 0.925 m should be suitable. I expect the planned 0.035 m descent to reach z = 0.928 m in three steps. The watch ring now appears well centered at pixel (311, 229). At the target height, the left fingertips would be at z = 0.7704 m. Could that be below the table? The table surface is likely at z = 0.76 m, so it seems acceptable. The contact pads would be around z = 0.8 m, near the strap’s estimated top at z = 0.79 m. I plan to grasp across the ring’s outer diameter of approximately 0.05 m, but I’ll inspect the next observation before closing the left gripper.

The right car remains in almost the same position relative to the wrist camera, and the reported opening command is 0.319, so I believe it is held. In the high-camera view, its image y coordinate may have changed from about 250 to 242 pixels, consistent with the observed 0.033 m lift. The left link6 is at z = 0.931 m, placing the fingertips at z = 0.7734 m alongside the watch strap. The ring’s outer edges at the contact area appear to span image x = 200–433, within the finger gap from roughly x = 120 to x = 520, so it seems to fit. The watch face is toward the bottom right. Closing along world X, horizontally in the wrist view, should pinch the left strap and the right side of the face. This may provide a stable hold on the ring. I’ll close the left gripper for three steps. I considered raising the right link6 to z = 1.035 m over perhaps five steps, but both arms share the step count. I’ll instead target right link6 z = 1.02 m during the three-step closure, expecting about 0.03 m of upward progress. This motion seems safe. I’ll keep the right gripper closed while lifting the car.

The left fingers appear to be touching the watch’s outer ring near image x = 210 and 437 pixels. The reported opening command of 0.447 likely indicates contact. I could finish closing for two more steps and then test-lift the watch while continuing to raise the right car. I need a raised path for transporting the right car to the left basket. I’ll retain its diagonal, narrow-axis grasp orientation to avoid unnecessary rotation and slipping. From the measured right link6 position [0.384, -0.158, 0.992] m to the basket target [-0.26, -0.012, 1.02] m, I estimate a distance of 0.663 m, so intermediate targets are necessary. A target at [0.1, -0.08, 1.08] m would be about 0.301 m away, exceeding the 0.25 m limit; [0.17, -0.12, 1.05] m would be about 0.236 m away. Maintaining the diagonal orientation during a large lateral reach may be kinematically challenging. I could return to the previous grasp orientation for transport, but yawing the wrist would also rotate the held car, so there is no need to do that now. I should raise the car to avoid the center watch and wooden toy: using a bottom approximately 0.16 m below link6, its bottom at link6 z = 0.99 m would be around z = 0.83 m, only slightly above their estimated tops at z = 0.82 m. One possible route is to raise the right link6 to z = 1.06 m while moving to x = 0.25 m, y = -0.12 m, then continue toward x = 0 m, y = -0.05 m. The left watch’s eventual placement in the middle basket should be easier. For this action, I’ll choose the right target [0.23, -0.10, 1.06] m. Its displacement is [-0.154, 0.058, 0.068] m, with an estimated distance of 0.177 m, within the limit. Ten steps might reach it. I could simultaneously close and test-lift the left watch to z = 0.97 m, then hold it there while the right arm travels, but I need to inspect a small lift before transporting the watch. Instead, I’ll target left link6 z = 0.961 m, a 3 cm lift, with the gripper commanded closed, and use six shared control steps. I expect the left arm to reach about z = 0.96 m after three steps and hold there, while the right arm may only move partway toward its target. I’ll inspect the watch grasp after those six steps.

The watch and car have stayed fixed in their respective wrist views, so both appear securely held. In the high-camera view, the right car has moved to about pixel (470, 223) as it lifted and moved toward the center. It is still above the right wooden toy but appears clear of it: I estimate the car’s bottom at z = 1.024 − 0.16 = 0.864 m. I can continue its path toward the left basket. The left watch needs to reach the middle basket target [0, -0.01, 1.02] m from x = -0.424 m, an estimated distance of 0.43 m, with an intermediate path through x = -0.2 m. Moving it toward the middle while the right car travels from x = 0.305 m to the left basket at x = -0.26 m would make their paths cross near x = 0 m, potentially at the same time and at similar heights. I should stagger their heights or move them sequentially. I could aim for vertical clearance of at least 0.15 m. Another possibility is to keep the watch at z = 0.96 m and the car at z = 1.10 m; I think that 0.14 m separation could be enough, but the watch also needs to rise above the other objects for transport. Keeping the watch at x = -0.424 m while the car crosses the center seems safest. I considered the next right target [0.05, -0.06, 1.08] m, but from its measured pose [0.305, -0.131, 1.024] m, the x change has magnitude 0.255 m and the estimated whole-position distance is 0.264 m, exceeding the 0.25 m limit. I’ll instead use [0.08, -0.08, 1.06] m. The component-change magnitudes are approximately [0.225, 0.051, 0.036] m, with an estimated distance of 0.234 m. Meanwhile, I’ll lift the watch by 0.079 m to left link6 z = 1.04 m, keeping its current x and y coordinates. The car will be at a similar height, z = 1.06 m, but still on the positive-x side, far from the watch. Could the left arm start moving once the right arm reaches x < 0? They might still converge near the white and middle baskets. I’ll place the car first while holding the watch high on the left, then move the watch to the middle basket after the right arm releases the car and retreats. The next targets are left [-0.424, -0.2, 1.04] m and right [0.08, -0.08, 1.06] m, with both grippers closed and their grasp orientations retained. I initially considered 10 steps for both arms, expecting the left lift to reach its target. The right arm’s diagonal orientation during the reach across its body could cause a kinematic failure from wrist twist; the precheck will assess that. I’ll use eight steps for this action.

In the high-camera view, the right car appears above the right border of the blue basket near pixel (419, 210), on its way toward the white basket. The left watch still appears held at the left edge near image y = 265. I considered moving the right arm to [-0.14, -0.03, 1.04] m, but that would require an x change of -0.327 m from its measured x = 0.187 m, which is too far for one action. I’ll instead target [-0.03, -0.06, 1.04] m. The position change is approximately [-0.217, 0.048, 0.001] m, with a total distance of 0.222 m. Ten control steps may bring it to that target. I’ll hold the left arm at its current pose with its gripper closed. Afterward, I could continue toward the basket at [-0.26, -0.012, 1.02] m, with an x change of about -0.23 m, which is within the action limit. The local IK check might still fail because of the right arm’s orientation. Its current diagonal orientation leaves the arm rolled, and moving farther left might encounter a joint limit. I may need to adjust the quaternion for that reach, but I’ll try this intermediate motion first, retaining the right grasp orientation and keeping both grippers closed.

The right arm’s measured quaternion is [0.683, 0.187, 0.681, -0.189] in wxyz order, about halfway toward the +90° Y transport orientation, so the rotation is not complete. The car has rotated and remains held. I’ll continue toward the transport quaternion [0.70710678, 0, 0.70710678, 0]. I estimate the quaternion dot product as 0.483 + 0.481 = 0.964, giving a remaining orientation distance of about 0.54 rad, within the action limit. One possible position is [0.02, -0.06, 1.08] m; its displacement from the measured pose is approximately [-0.118, 0.046, 0.001] m, with a distance of 0.127 m. For this action, I’ll target the right arm at [0, -0.06, 1.08] m with the transport quaternion and its gripper closed, using eight control steps. I’m unsure whether the local IK check will permit reaching x = 0 with this orientation, but I’ll try it. The left arm will hold its current pose and keep the watch gripped.

The right arm is still constrained while its measured x coordinate is 0.138 m. Perhaps a target at x = 0.08 m with the +90° Y-rotation orientation would be reachable. The roughly 50 mm position error for the rejected x = 0 target suggests a possible limit near x = 0.05 m, but that is only a hypothesis. The left basket is at x = -0.26 m, so I may need a different orientation or route. Returning to the earlier top-down orientation might help. The high target at y = -0.06 m and z = 1.08 m could also be limiting reach. Earlier, the left arm’s target at y = 0.015 m and z = 1.08 m failed, while lowering z to 1.04 m helped. Lowering the right link6 to z = 1.0 m might improve lateral reach, but I estimate the held car’s bottom would be at z = 0.84 m, below the basket rim at about z = 0.89 m. Moving across the baskets at that height could cause a collision. I could first move to y = -0.18 m, in front of the baskets, then lower to z = 1.0 m, rotate, and cross there before approaching the basket at y = 0 and z = 1.02 m. From the current right y coordinate of -0.106 m, another option is to move toward the robot to y = -0.22 m at z = 1.10 m for clearance, then rotate and cross at y = -0.22 m with a lower height. At link6 z = 1.0 m, the estimated car bottom at z = 0.84 m would clear the wooden toys’ estimated tops at z = 0.82 m by only 2 cm. A link6 height of z = 1.05 m, putting the car bottom around z = 0.89 m, would be better. Reaching x = 0 at y = -0.22 m may be easier because it is closer to the right base. Whether the arm could then reach the left basket at y = -0.01 m remains uncertain. A transfer to the left arm at the center is another option, but the left arm currently holds the watch. It would need to place the watch first. The right arm could bring the car to x = 0, y = -0.2 m, and the left arm could then receive or pick it up and place it in the left basket. That adds operations but may be easier than continuing to fight the cross-table reach constraint. A direct handoff at the car’s current position near x = 0.138 m, y = -0.1 m is not possible while the left gripper holds the watch. Moving the watch from x = -0.424 m toward the middle basket at x = 0 while the right arm stays at x = 0.138 m could bring the arms too close. Their x separation would be 0.138 m, and each set of fingers may occupy about 0.1 m. Separating them in y could help: the watch’s destination is at y = -0.01 m, while the right car could be parked in front at y = -0.25 m. I could move the right arm to [0.25, -0.25, 1.05] m and perhaps rotate it there while the left carries the watch through y = -0.2 m toward [0, -0.01, 1.02] m. After the left releases the watch, the right could bring the car to x = 0, y = -0.2 m for a handoff or an overhead pickup, then retreat. That would be more complex but potentially robust. Still, the right arm may be able to cross with a better orientation and a lower, closer route. I am uncertain about the bases and the arms’ effective reach. If the right base is at x = 0.3 m, the left basket at x = -0.26 m requires 0.56 m of lateral reach. Could that exceed the workspace regardless of orientation? Perhaps the task expects the left arm to handle cars destined for the left basket, even when they start on the right, or expects a handoff. I do not know whether both arms can reach all baskets. The ARX X5’s reach might be around 0.55 m, but that is an unverified estimate. The bases might be at x = ±0.6 m, y = -0.5 m, whereas the initial link6 positions were at x = ±0.3 m, y = -0.352 m, z = 0.922 m. If the right base were at x = 0.45 m, the left basket at x = -0.26 m would be 0.71 m away laterally, exceeding a hypothetical 0.6 m reach. A handoff might then be needed. The left arm reaching the right car directly could also require about 0.8 m, so that may not solve the problem. The initial cars at x = -0.128 m and x = 0.375 m naturally suited the left and right arms respectively. Perhaps the actual arm reach is closer to 0.8 m. My tentative visual interpretation places the right white arm body near pixel (550, 80) in the high-camera view, with its base outside the image at the bottom right. From the starting right link6 position [0.3, -0.352, 0.922] m, I wondered whether the base might be near [0.45, -0.60, 0.85] m. I estimated a horizontal distance of about 0.99 m to the left basket near [-0.26, -0.01] m, which would seem unreachable under that hypothesis. Alternatively, with baskets near x = ±0.26 m, y = 0 and a right base at [0.3, -0.6] m, I estimated about 0.83 m of reach; a hypothetical ARX X5 reach of 0.63 m would be insufficient. The left arm placing the first car from x = -0.128 m into the basket at x = -0.26 m was straightforward, whereas the right car’s destination requires crossing. The left arm reaching the right car at x = 0.38 m, y = -0.15 m from a hypothetical base at x = -0.3 m, y = -0.6 m would similarly require about 0.83 m. These estimates do not establish the actual reach or intended manipulation strategy. Could the bases instead have y = 0? The arms appear to extend from the bottom foreground, in negative y, toward their starting link6 positions at y = -0.352 m and z = 0.922 m, so a base near y = -0.75 m seems another possibility. The arm reach might be about 0.75 m. I tentatively estimate the table’s y extent as -0.5 to 0.3 m. With baskets at y = 0.03 m and a base at y = -0.55 m, the forward distance would be 0.58 m; combined with 0.56 m of lateral crossing, I estimate about 0.8 m of reach. A target at z = 1.08 m might add about 0.2 m above the base and require around 0.83 m, exceeding that hypothetical 0.75 m reach. Lowering z to 0.95 m could help, but crossing at z = 0.96 m would put the car bottom around z = 0.80 m, below the estimated rim height of 0.89 m. It would need to approach in front at y = -0.15 m and then rise before entering the basket. Tilting the gripper might let the car extend forward without moving link6 as far: a horizontal orientation could extend it about 0.15 m along +Y while link6 stays near y = -0.16 m and x = -0.1 m. That would be difficult, and I have not established its feasibility. A center transfer remains a robust fallback if the right arm cannot cross. There are 940 control steps left, so there is ample budget for an extra pickup. I considered a handoff near x = -0.05 m. The right arm can currently reach x = 0.138 m and may reach x = 0 with a lower, closer target; the left arm may also reach the center, where the center watch was estimated at x = 0.093 m. A possible handoff pose is [0, -0.20, 0.99] m, with the car bottom estimated at z = 0.83 m. After placing the watch at [0, -0.01, 1.02] m, the left arm could move toward the car. Putting the car down on a clear section of table and regrasping it may be easier and more stable than a direct handoff. The right arm could place it at x = 0, y = -0.22 m, then retract so the left can pick it up. An intermediate table placement is compatible with ultimately putting it into the left basket. I need to avoid the center watch near [0.093, -0.138] m and the wooden toys. A spot near x = 0, y = -0.28 m might be clear. The front-center table area near pixel (320, 320) may correspond to x = 0, y = -0.29 m. One possible plan is to bring the right car to [0, -0.30, 0.95] m and release it while the left carries the watch to the middle basket. The right arm could then handle the right wooden toy while the left picks up the car from the center. This adds one grasp, but it is manageable. Tossing the car directly into the left basket would not be safe; a handoff or supported regrasp is preferable. Before committing to a transfer, I’ll try moving the right arm to [0.02, -0.22, 1.02] m with the +90° Y-rotation quaternion. From its measured pose [0.138, -0.106, 1.079] m, the position change is [-0.118, -0.114, -0.059] m, with an estimated whole-position distance of 0.175 m. The remaining orientation change is about 0.54 rad. The precheck may pass because this target is lower and closer to the base. If it does, I can assess progress toward the front center before deciding how to proceed. At the same time, I’ll move the left watch only partway toward the middle basket, targeting [-0.22, -0.12, 1.04] m with the earlier top-down orientation. The x and y changes are +0.204 m and +0.08 m, with an estimated position distance of 0.219 m. The proposed targets have about 0.24 m of x separation, which seems acceptable. Later, a left approach to the middle basket while the right stays at x = 0.02 m, y = -0.22 m would give about 0.21 m of y separation; the fingers and held objects might remain about 0.2 m apart. I can defer that final watch approach until the right arm is parked at the front. I’ll use eight control steps, keep both grippers closed, retain the left quaternion [0.5, -0.5, 0.5, 0.5], and target the right quaternion [0.70710678, 0, 0.70710678, 0], all in wxyz order. If the right precheck fails, neither arm will move, and I’ll adjust the targets from the same observation.

The right arm has reached the +90° Y transport orientation and moved to x = 0.052 m, y = -0.186 m in front of the baskets, so this route is working. I could try continuing to [-0.20, -0.12, 1.02] m, but from the measured pose [0.052, -0.186, 1.039] m, I estimate that distance as 0.261 m, exceeding the 0.25 m limit. I’ll instead target [-0.16, -0.16, 1.03] m. The position change is [-0.212, 0.026, -0.009] m, with a distance of about 0.214 m. If that is reachable with the current orientation, the subsequent basket target [-0.26, -0.012, 1.02] m, which I estimate as a further 0.185 m away, might also be reachable. Moving toward y = -0.012 m could still encounter a reach limit; another option is to approach the basket’s front at y = -0.08 m before moving to its center. I also considered moving the left arm toward the middle basket at [-0.02, -0.02, 1.02] m, but from its current x and y coordinates of -0.332 m and -0.166 m, I estimate a distance of 0.344 m, beyond the limit. An intermediate left target of [-0.12, -0.08, 1.04] m would require x and y changes of +0.212 m and +0.086 m, with an estimated distance of 0.229 m. However, moving both arms to those intermediate targets would leave only about 0.09 m between them, creating a collision risk. I should keep the left arm parked while the right carries the car toward the left basket. Could the left arm start moving after the right reaches x = -0.16 m? With the left held at x = -0.332 m, their x separation would be 0.172 m and their y coordinates would be similar, which might be acceptable. But the subsequent right approach to y = -0.012 m and left approach to [-0.12, -0.08, 1.04] m could bring their paths close again. It seems better to wait until the right arm reaches the white basket before approaching the middle basket with the left. The right at x = -0.26 m and left at x = 0 m would have 0.26 m of x separation, which seems sufficient for the grippers. Should I hold the left until the right releases the car and retreats rightward? The right arm’s body may still extend across the center during its reach to the white basket, posing a risk to the left arm near the middle basket. I can assess that in the high-camera view. For now, I’ll use eight control steps to move the right arm to [-0.16, -0.16, 1.03] m while holding the left at [-0.332, -0.166, 1.039] m, retaining both orientations and keeping both grippers closed.

The right arm may be limited to crossing near x = 0.05 m in front of the baskets with the +90° Y transport orientation. Could a target at x = -0.05 m, a change of about -0.10 m, be reachable? The precheck stalled with about 70 mm of position error for the target at x = -0.16 m. If that error were along x, it might suggest a limit near x = -0.09 m, but I am uncertain. A target at [-0.08, -0.19, 1.02] m might pass. Reaching x = -0.08 m would be enough to place the car on the center table at x = -0.08 m, y = -0.25 m, where the left arm could easily pick it up. I’ll use a table transfer rather than continue trying to reach the white basket directly. A clear transfer point may be at x = -0.05 m or 0 m, y = -0.28 m. One possible right-arm target is [-0.03, -0.28, 0.96] m with the same transport orientation. From the measured pose [0.052, -0.186, 1.039] m, I estimate its distance as 0.132 m, so it may be reachable. At link6 z = 0.96 m, I estimate the car’s bottom at z = 0.80 m, above the table at z = 0.76 m. The environment point [-0.03, -0.28, 0.78] m projects near pixel (311, 321) in the high-camera view, which appears to be clear table between the arms in front; the initial wrist bodies appeared near image y = 380. This looks suitable for placing the car. After placing the watch, the left arm can pick up the car at x = -0.03 m, y = -0.28 m. The extra pickup seems robust. For now, I’ll move the right arm to [-0.03, -0.28, 0.975] m, putting the estimated car bottom at z = 0.815 m, about 5 cm above the table. At the same time, I’ll continue the left watch’s approach toward the middle basket through [-0.15, -0.09, 1.04] m. The right car will move from [0.052, -0.186] m toward [-0.03, -0.28] m in front, while the left watch moves from [-0.332, -0.166] m toward [-0.15, -0.09] m behind it. At the targets, their x and y separations would be 0.12 m and 0.19 m, giving about 0.225 m of separation, which seems safe. Clearance between the arm bodies is still somewhat uncertain. I estimate the left target distance as 0.2 m and the right target distance as 0.135 m. I’ll use eight control steps with both grippers closed. If the right precheck fails, a lower target might help.

The right arm is at the front-center transfer point. Using a 0.16 m offset below link6, I estimate the car’s bottom at z = 0.977 − 0.16 = 0.817 m, perhaps 0.067 m above a table surface at z = 0.75 m. I could lower link6 to z = 0.925 m for placement, since the original table-level grasp was at z = 0.926 m. Although the orientation has changed, the car may retain a similar position in the gripper’s local frame, putting its bottom near z = 0.774 m. That would be a 0.052 m descent before release. Alternatively, I could release from z = 0.977 m for a roughly 6 cm drop, which seems safe but might cause bouncing. I’ll instead lower toward z = 0.93 m over three control steps. The left arm’s middle-basket target is [0, -0.012, 1.02] m, from its measured position [-0.221, -0.123, 1.037] m. Is the distance about 0.253 m? The horizontal distance is approximately √(0.221² + 0.111²) = 0.2473 m; including the 0.017 m height difference gives about 0.248 m, barely within the 0.25 m limit. The right arm is at [-0.027, -0.277, 0.977] m in front of the basket. I estimate about 0.265 m of separation at the end of the left approach, which seems safe, and the left path from [-0.221, -0.123] m to [0, -0.012] m appears clear of the right arm parked in front. I’ll use three shared control steps with both grippers closed, targeting the left arm at [0, -0.012, 1.02] m and the right at [-0.03, -0.28, 0.93] m. I expect only partial progress from the left arm while the right lowers toward placement height. After inspecting the result, I can continue the left approach while releasing the car.

The left arm’s direct target over the middle basket was about 0.248 m away, but the IK precheck failed with about 54 mm of position error. Perhaps the current orientation and height put it near its reach limit. I’ll try the closer intermediate link6 position [-0.08, -0.06, 1.03] m, which I estimate is 0.162 m away and likely reachable. After that, I may be able to continue to the basket center at x = 0 m. I’ll keep the right arm’s lowering target unchanged at [-0.03, -0.28, 0.93] m and use three control steps.

After three steps, the right link6 is at z = 0.942 m rather than the target of 0.93 m. The car’s bottom may be at z = 0.784 m, just above the table. I’ll lower the right link6 to z = 0.928 m over another two steps before releasing the car. The left arm is progressing slowly, about 0.04 m per three steps, and may need more steps to reach its x = -0.08 m target. I considered allowing two steps for the right descent and five for the left approach, but both arms share the action’s step count. Two steps should cover the right arm’s remaining 0.014 m descent while allowing about 0.028 m of left-arm progress. I’ll use two steps now, then plan a three-step right-gripper release while continuing the left approach for those same three steps.

Is the right car resting on the table now? The gripper occludes most of it in the high-camera view, leaving only a small part of the top visible. Its position relative to the wrist camera appears stable, and its bottom appears to be at the table surface. I’ll release the right gripper over three control steps while continuing to move the left arm, still holding the watch, toward [-0.08, -0.06, 1.03] m for the same three steps.

The released car is stable at the transfer point. The left link6 is now at [-0.129, -0.086, 1.029] m, and the held watch appears to be over the border between the white and blue baskets, perhaps near pixel (250, 209) in the high-camera view. It needs to reach the middle basket’s center at x = 0 m and y = -0.012 m. I’ll continue toward the left target [0, -0.012, 1.02] m, which I estimate is 0.163 m from the current pose. The precheck may pass now that the arm is closer. The right arm needs to withdraw upward and rightward to clear the car for a later pickup by the left arm. I’ll target [0.15, -0.22, 1.05] m with its gripper open. The position change is [0.18, 0.06, 0.121] m, with an estimated distance of 0.226 m. This retreat appears safe. Both arms can move concurrently because their paths diverge. I’ll use eight control steps, keeping the left gripper closed on the watch; the left arm may only reach partway toward its target.

The left precheck returned exactly the same position error, 53.837 mm, as the earlier attempt at [0, -0.012, 1.02] m. This suggests that the left arm cannot reach that target with its current quaternion, [0.5, -0.5, 0.5, 0.5] in wxyz order, even from a different starting pose. I should change the orientation or lower the target height. The measured left link6 position is [-0.129, -0.086, 1.029] m, and the middle basket’s estimated center is at x = 0 m, y = -0.012 m. Could the roughly 54 mm error mean the best reachable position is near x = -0.054 m, y = -0.04 m? That remains an estimate. I could place the watch near the left/front interior of the middle basket at x = -0.06 m, y = -0.04 m rather than at its exact center. The task requires containment, although the skill recommends aiming close to the center. I estimate the basket width as 0.22 m, centered at x = 0 m, with its left edge at x = -0.11 m, so x = -0.05 m should be safely inside. A target of [-0.06, -0.04, 1.0] m may be reachable. The first car was placed in the white basket at x = -0.26 m, y = -0.012 m. For the blue basket, a watch ring diameter of about 0.05 m should leave margin at x = -0.06 m if the inner width is about 0.20 m. Another option is [-0.05, -0.03, 1.0] m. Changing to the +90° Y-rotation quaternion might improve reach, but that may be unnecessary if the watch can be placed inside with the current orientation. The right withdrawal target remains [0.15, -0.22, 1.05] m with the +90° Y-rotation quaternion. Perhaps the precheck did not flag the right arm because the left failed first. I’ll use eight control steps, targeting the left arm at [-0.055, -0.04, 1.0] m with the watch held, while the open right gripper withdraws.

The left link6 is at x = -0.072 m, y = -0.054 m, z = 1.002 m. In the high-camera view, the watch appears near pixel (286, 202), over the blue basket’s front-left interior. At the grasp, link6 was at z = 0.931 m and the strap bottom was estimated at z = 0.775 m, giving a vertical offset of -0.156 m. I therefore estimate the watch’s bottom is now at z = 0.846 m. The rim top may be around z = 0.89 m, so the watch may be below the rim but still within the opening. I’ll release it here. The right arm has not fully withdrawn. Its link6 is at [0.078, -0.246, 1.001] m, near the transfer car at x = -0.03 m, y = -0.28 m. The raised gripper may be clear, but it needs to move farther right. I’ll target [0.20, -0.20, 1.05] m, a position change of [0.122, 0.046, 0.049] m with a total distance of about 0.139 m. I’ll use three control steps to release the watch while retreating the right arm, then inspect whether the watch is inside the basket.

The watch may have settled at the blue basket’s front edge rather than inside it. In the high-camera view from obs_000195, I estimate the watch ring near pixel (289, 222). The basket’s front face spans approximately x = 265–372 and y = 172–210 pixels, with its bottom front edge at y = 211. The ring is visible around y = 211–229, which may put it on the table in front of the basket. Before release, I estimated the watch near pixel (284, 201), over the front wall. After release, it moved downward in the image to about y = 222, perhaps as it settled under physics. This suggests it may have fallen in front of the basket. Did I release it too low near the front-left interior? The wrist view also appears to show the watch near the top center, below the blue front rim, with brown tabletop visible beneath it. I am not yet certain that it is outside. I should inspect a crop of the high-camera view and use the geometry to check containment. If the watch is outside, I need to recover it. Native success may only report the whole task’s outcome rather than individual placements, so I should verify this placement visually before moving on. I’ll save crops around the blue basket and watch from obs_000192 and obs_000195, then view and compare them.

The watch’s placement is uncertain after release, and I’ve prepared a crop of the blue basket and its front edge. I’ll view that crop to check whether the watch is fully contained before deciding whether to regrasp it.

The watch’s calculated world y coordinate is -0.056 m, not -0.14 m, and the front rim is near y = -0.066 m. Its center is about 1 cm behind the rim, yet it landed outside on the table. Could the basket’s lower front wall extend farther forward? With an estimated front-wall thickness of 0.015 m, a bevel, and a watch-ring radius of 0.03 m, the ring could cross the front boundary. I should place its center farther back, perhaps at y = +0.02 m. The watch does not seem to have moved much in y during the drop; its release position was y = -0.054 m. Was it already at table height? Link6 was at z = 1.002 m, and an estimated downward offset of 0.156 m puts the watch bottom at z = 0.846 m, rather than the table-level estimate of 0.775 m. At x = -0.072 m and y = -0.054 m, a height of z = 0.846 m might project near image y = 201 pixels; after dropping to z = 0.775 m, it projects near y = 222 pixels without a substantial world-y change. Perhaps the front wall’s inner surface is near y = -0.035 m, explaining why the ring landed outside. A future placement target at y = +0.04 m seems safer. The open left gripper is currently at [-0.072, -0.054, 1.002] m, directly above the watch. I’ll retain its orientation and lower it toward [-0.068, -0.056, 0.931] m, perhaps using five control steps. For the right arm, I considered retreating from [0.118, -0.232, 1.017] m to [0.28, -0.16, 1.03] m, an estimated distance of 0.176 m, over five steps. That seems safe and would prepare it for the right wooden toy near [0.197, -0.159] m in XY. Instead, it could move directly above that toy while the left arm recovers the watch. I need to choose an appropriate grasp orientation for the wooden rocking horse. The right gripper currently has the +90° Y-rotation orientation, which closes along world Y. The horse appears white, and its curved base may run horizontally along image x. Do both horses face left? In the initial high-camera view, the left horse was near pixel (282, 265), with its head perhaps at (274, 269); the right horse was near (419, 261), with its head perhaps at (411, 264). Their bodies seem left-facing, with their length possibly along world X. If so, closing along world Y should grasp across the body’s width. A contact point near the center of the body or back, around pixel (422, 259) or world XY [0.2, -0.155] m, seems suitable. I estimate the horse’s base at table height z = 0.775 m, its body top near z = 0.84 m, and its height at about 0.065 m. A grasp around the body’s middle at z = 0.81 m, with fingertips perhaps near z = 0.79 m above the table, might require link6 z = 0.95 m. With a finger extent of 0.1576 m, link6 z = 0.94 m gives fingertip z ≈ 0.782 m, and pads at local X = 0.12 m would be at z = 0.82 m. That seems appropriate. I’m considering a final body grasp at x = 0.198 m, y = -0.159 m, link6 z = 0.94 m, retaining the world-Y closing direction. I should first approach near z = 0.99 m, then lower. For this action, I’ll use the right pregrasp target [0.20, -0.159, 0.995] m with the +90° Y-rotation orientation. From its current position [0.118, -0.232, 1.017] m, I estimate the target distance as 0.113 m. I’ll use five shared control steps with both grippers open, lowering the left toward the watch while positioning the right above the horse, then inspect both.

The blue basket fills the left wrist view, and the watch is no longer visible. Perhaps the camera is too close to the front wall, with the watch below the image at pixel y > 480. The left link6 is at z = 0.95 m and y = -0.052 m. The high-camera view suggests the gripper is over the watch, but I should regain wrist-camera visibility before closing. Would lowering farther bring the watch into view? With the current orientation, the camera’s forward direction is approximately [0, -0.5, -0.866], toward negative world Y and downward. I estimate that, with link6 at z = 0.95 m and the watch at z = 0.775 m, the fingertip would be at z ≈ 0.792 m and project near image y = 330. The watch should therefore appear lower in the image, but the basket wall fills the view down to about pixel y = 380 and may occlude it. The camera center is approximately at link6 y + 0.051 m = -0.001 m, behind the front wall at y ≈ -0.066 m, looking toward the watch. That geometry seems to explain the occlusion. Moving the left link6 forward to y = -0.09 m while keeping x = -0.068 m would put the camera at y ≈ -0.039 m, still behind the wall. To put the camera in front of the wall, link6 would need y < -0.117 m, but that would move the grasp center away from the watch at y ≈ -0.056 m. I could instead change the gripper’s yaw or tilt it. Other possibilities are pushing the watch farther forward, using the right wrist as an observer, or regrasping from the known position using the high camera alone. The right wrist currently shows the horse and another watch, rather than this watch. I could lower to link6 z = 0.931 m, close, lift, and verify with the high camera, but the alignment instructions require keeping the target visible in the wrist view, so I should change the viewing angle. A 180° yaw rotation would put the camera in front of the watch, looking backward toward the basket. Its center would then be at link6 y - 0.051 m = -0.107 m, in front of the wall. This would reverse the closing direction to local Y along world +X, which should be acceptable for the symmetric ring. I would need to raise to a safe height around z = 1.0 m and rotate through intermediate orientations, however, which adds effort. A 90° yaw change to the orientation represented by quaternion [0.70710678, 0, 0.70710678, 0] in wxyz order should provide a side view instead. The camera’s local position [0.0848, 0, 0.0509] m would transform to a world offset of [0.0509, 0, -0.0848] m, placing it on the +X side rather than behind the basket. Its local forward direction [0.866, 0, -0.5] would become approximately [-0.5, 0, -0.866] in the world frame, looking left and down. With link6 x = -0.068 m, the camera would be near x = -0.017 m and look toward the watch at x = -0.068 m. Since the camera and watch would have the same y coordinate, I expect a side view without the wall between them. Closure would be along world Y rather than world X, which seems suitable for the roughly circular ring. The full orientation change from the current quaternion [0.5, -0.5, 0.5, 0.5] is 1.571 rad, so I need an intermediate orientation. I’ll raise the left link6 from z = 0.95 m to z = 1.03 m and rotate halfway. At z = 1.03 m, I estimate the fingertips at z ≈ 0.872 m, above the wall’s estimated height of 0.87 m, which seems safe. The midpoint quaternion is approximately [0.653, -0.271, 0.653, 0.271]. The earlier interpolation at fraction 0.45 gave [0.642, -0.296, 0.642, 0.296]; for fraction 0.5, I believe the midpoint is approximately [0.653281482, -0.270598, 0.653281, 0.270598]. I can use that known midpoint without another calculation, targeting left position [-0.068, -0.056, 1.03] m with the gripper open. I considered eight steps for this lift and rotation while the right arm finishes its pregrasp approach, followed by the final left rotation and descent to z = 0.95 m. That would add about 16 steps, which is acceptable. Although simply closing and lifting the watch now would be easier given its known alignment, I’ll regain the side view first. The right horse is partly out of view at the upper left of its wrist image. Moving the right link6 from its measured x = 0.166 m and y = -0.191 m to x = 0.2 m and y = -0.159 m should center it. For this action, I’ll use six shared control steps: raise and rotate the open left gripper to the intermediate pose, and move the open right gripper to [0.2, -0.159, 0.995] m with its current intended orientation. The right arm can lower toward z = 0.95 m afterward.

The left watch is visible again near the top center of the wrist image, partly behind the rim but visible enough to monitor. The measured left quaternion is [0.561, -0.43, 0.562, 0.429] in wxyz order, so it has not yet reached the intermediate target, approximately [0.653, -0.27, 0.653, 0.27], but it is progressing toward it. The right horse appears centered near pixel (310, 200), with the fingers on either side. Its length is vertical in the wrist image, and its body is about 110 pixels wide horizontally, which looks suitable for a widthwise grasp. Is the current link6 position at x = 0.2 m, y = -0.159 m directly above the horse’s body center? The horse spans approximately image y = 80–300. I expect the fingertip target to project near image x = 320 when lowered, but its image y coordinate remains uncertain. I should grasp the middle of the torso rather than the base. A possible torso point is pixel (310, 180). With link6 currently at z = 0.995 m and the object’s top estimated at z = 0.83 m, I considered contact after lowering link6 to z = 0.945 m. I could refine the world x and y coordinates by intersecting the current right wrist ray through (310, 180) with an assumed torso-center height of z = 0.815 m. The earlier high-camera estimate used pixel (419, 261) and z = 0.79 m; using a body-top height of z = 0.82 m would give different x and y coordinates. Would that make y smaller? I am unsure and should favor the wrist view. The white central torso, possibly below the black mane, appears near pixel (315, 170), while the saddle center may be near (310, 150). The fingers close horizontally in the image, but the image y coordinate of contact will change as the gripper descends. I want link6’s world x and y coordinates over the body center. The high-camera estimate may put the horse near x = 0.199 m, y = -0.159 m using the point at z = 0.79 m, and I estimate the body center near x = 0.197 m, y = -0.16 m. Those estimates are close to the current target, so I will retain it. For this action, I’ll use three control steps to lower the open right gripper to link6 z = 0.95 m while continuing the left rotation toward the intermediate quaternion and raising it toward z = 1.03 m. Afterward, I may complete the left rotation to the +90° Y orientation; the angle from the intermediate orientation to that final orientation is 0.785 rad. I could then lower the left link6 to z = 0.96 m over perhaps 3–5 steps.

The left rotation is still progressing slowly: after three steps, the measured quaternion’s w component is 0.588 rather than the intermediate target’s approximately 0.653. The right horse now appears larger, with the open fingers around its torso. At right link6 z = 0.961 m, the fingertips are at z = 0.8034 m. The body top may be around z = 0.84 m and the base around z = 0.775 m, so the fingers are already alongside the body. Would link6 z = 0.94 m be suitable for the grasp? I could lower it about 0.02 m. In the wrist image, the torso spans approximately x = 260–370 pixels, while the open fingers’ inner gap at y = 230 pixels extends from x = 130 to 510 pixels. That leaves ample room to close around a body width of perhaps 0.05 m. For the left intermediate quaternion, I estimate the dot product with the measured quaternion as 0.384 + 0.106 + 0.386 + 0.106 = 0.982, giving a remaining orientation distance of about 0.38 rad. Could I go directly to the final +90° Y-rotation orientation? The estimated dot product is 0.416 + 0.416 = 0.832, giving an angle of 1.175 rad, above the 1.0 rad action limit. I therefore still need to reach the intermediate orientation before commanding the final one. I’ll use two control steps to continue the left arm toward its intermediate quaternion and link6 z = 1.03 m from the measured 1.019 m, while lowering the right link6 to z = 0.943 m. Both grippers will remain open.

The right gripper is at grasp height. The horse appears large in the wrist view, and the contact pads are positioned to close horizontally across its torso. I’ll close the right gripper for three control steps while continuing the left gripper’s rotation toward its intermediate orientation for the same three steps. I may move the left gripper toward its final orientation in the next action.

The right fingers appear to grasp the horse around its torso, near image x coordinates 240 and 400 pixels, with the body about 150 pixels wide. That looks suitable, and the reported opening command is 0.329. I’ll test the grasp by lifting the right link6 to z = 0.984 m over three control steps. The left arm has not quite reached its intermediate orientation: its quaternion’s w component is 0.628 versus the target’s approximately 0.653. Can I now command the final +90° Y-rotation orientation? I estimate the quaternion dot product as 0.444 + 0.444 = 0.888, giving an orientation distance of 0.951 rad, below the 1 rad limit. I can therefore command that final orientation while lowering the left link6 toward z = 0.97 m. The position distance is about 0.058 m and the orientation change about 0.95 rad. Could the left fingers contact the watch before the rotation finishes? At link6 z = 0.97 m, I estimate the fingertips at z = 0.812 m, above the watch’s estimated z = 0.775 m by 0.037 m, so this descent seems safe. I’ll use three shared control steps, targeting the open left gripper at [-0.068, -0.056, 0.97] m with the final orientation while test-lifting the horse with the right gripper closed. I expect the left rotation to finish only partly in three steps, but its camera should have enough of a side view to continue the approach afterward.

At first, the right horse looks nearly unchanged in size, but the reported opening command fell from 0.329 to 0.202 during the lift. Could it have slipped, tilted, or allowed the fingers to close farther? In the high-camera view, it appears near pixel (415, 258), seemingly still at its table position. A lift of about 3 cm should shift it upward by roughly 5 pixels. Comparing obs_000211 with obs_000217, I estimate its position changed from (417, 260) to (418, 258), only 2 pixels upward rather than the expected 4–6. It may have lifted only partially. The wrist view is also inconclusive. The base’s top appears to have moved from image y = 104 to y = 102, and the body initially looks similar, which could support a hold. However, the opening-command decrease of 0.127 concerns me because something similar happened with the failed car grasp. The horse may have slid downward within the fingers and become pinched around a narrower part of its body or neck. If it stayed on the table while the camera rose 0.033 m, it would become smaller and move upward in the wrist view, as the car did when its yellow image area fell from about 34,000 to 14,000 pixels. Looking more closely, I estimate the horse’s body width before the lift at about 160 pixels. The base rectangle previously spanned image x = 209–386, a width of 177 pixels, and now spans x = 249–397, a width of 148 pixels, about 16% smaller. The black head shape previously spanned x = 246–333, a width of 87 pixels, and now spans x = 284–353, a width of 69 pixels. This suggests the horse mostly remains on the table. The opening command of 0.202 might correspond to closure around nothing, a strap, the red ribbon, or a narrower part of the horse after sliding. Yet its body still appears between the fingers: near image y = 270, the inner edges are around x = 260 and x = 380, leaving a 120-pixel gap around a body about 120 pixels wide. It could still be held but slipping. I should treat this grasp as unconfirmed and avoid transport. I considered another small lift to link6 z = 1.017 m to see whether the horse follows, and a small 0.02 m test might be acceptable, but I should not keep raising an uncertain grasp. Returning to z = 0.944 m with the gripper open and attempting a lower grasp seems better. Perhaps the original link6 height of 0.944 m was too high and pinched the upper torso. During lifting, the horse may have slid until its base rested on the table and the fingers contacted the narrower lower torso. A lower grasp near link6 z = 0.92 m might engage the torso or base. At the original height, the fingertips were at 0.944 − 0.1576 = 0.7864 m, above the estimated base bottom at z = 0.775 m. Pads at local X = 0.12 m were around z = 0.824 m, near the estimated torso center at z = 0.82 m. That seemed appropriate, but a tapered, rounded torso may not provide stable opposing contacts. Grasping the base around z = 0.79 m could be more stable. Link6 z = 0.915 m would put the tips near z = 0.757 m, potentially below the table and causing a collision. Is the table perhaps at z = 0.72 m? The car grasp used link6 z = 0.926 m with tips near z = 0.768 m, so a table height around z = 0.75 m seems plausible. If the table is at 0.75 m and the base is 0.01 m thick, the base bottom might instead be around 0.76 m. Under that estimate, link6 z = 0.915 m could put the tips near the table and the pads around z = 0.795 m, near the base top at 0.79 m. A pinch across the rectangular rocking base’s estimated 0.06 m width along world Y might be stable, but these heights remain uncertain. I should align over the base center rather than assume the torso target is correct. The base center appears near wrist pixel (320, 140), with the current right link6 at [0.2, -0.16, 0.977] m and the +90° Y-rotation orientation. Its world y coordinate might be around -0.13 m. I could intersect that pixel’s ray with z = 0.78 m to estimate its position. With this orientation, the camera is offset by approximately +0.0509 m in world x and −0.0848 m in z; would that pixel place the base near world x = 0.2 m? I have not calculated it. Choosing the base rather than torso could shift the y target by 0.03 m. The high-camera interpretation is also tentative: the base seems near (419, 260), the black head near (409, 255), the body near (420, 263), and the base may extend from (403, 251) to (432, 270). I also considered the earlier downward orientation, which closes along world X, to pinch around the base ends. However, with the current +90° Y orientation, image horizontal corresponds to world −Y and image vertical includes world X. The vertically elongated base therefore seems to have its long axis along world X, making the current world-Y closing direction suitable for its width. The current target at x = 0.2 m, y = -0.159 m may already be over the base center; lowering toward z = 0.92 m could engage it. Meanwhile, the left arm is still slowly completing its combined rotation and descent, and the watch remains visible. I considered continuing to the final +90° Y orientation while lowering from link6 z = 1.006 m to 0.94 m, a 0.066 m descent. From its current quaternion [0.648, -0.283, 0.648, 0.284] in wxyz order, I estimate the remaining angle at 0.61 rad. Three steps might lower it about 0.03 m and rotate it about 0.2 rad. For the right arm, I considered reopening and lowering from z = 0.977 m to 0.925 m in three steps; if the horse is loosely held, opening might let it fall only about 2 cm onto the table. Opening at the current height could instead give a roughly 3 cm drop before a later descent. I will return the right link6 to z = 0.944 m while opening over three steps, releasing and lowering together near the table, then inspect. For the left arm, I will use the final orientation with a more modest link6 target of z = 0.965 m for the same three steps, keeping its gripper open.

The horse is back near its original position, but has its orientation or position changed? In the high-camera view, I estimate it at pixel (413, 256), compared with the initial (419, 261), and estimate that it moved left and up by 6 mm. It seems to have been dragged slightly during the failed grasp, so I should update the grasp center. In the right wrist view, the base center appears near (263, 190), rather than image x = 320, and the body center is near x = 260. I am unsure of the head’s horizontal position. In obs_000211, the horse appeared centered near x = 320; now it appears centered near x = 260. Did it fall and move when released? The right link6 remains at world x = 0.2 m and y = -0.159 m, but the horse’s world x coordinate might now be about 0.187 m. I should recalculate rather than assume its old position. The base appears to span image x = 183–343, the torso x = 190–318, and the black mane x = 213–287. A grasp center near image x = 250 seems more appropriate than x = 320. If image horizontal corresponds to world −Y, a center left of the grasp line implies that the horse moved toward positive world Y. Its upward shift in the high-camera image also seems consistent with that. Its world x coordinate might still be about 0.2 m, while a revised y target might be approximately -0.139 m rather than -0.159 m. The base or body center might be near wrist pixel (260, 240), but I am uncertain. I could estimate a torso point by intersecting its camera ray with a plane at z = 0.81 m. One tentative torso center is (255, 280). The base begins near image y = 134, though I am unsure of its lower extent. Looking again, the horse appears vertically oriented: the base may span y = 133–360, the black seat is near (250, 250), the torso beneath it is near y = 320, and the head extends toward y = 430 and out of frame. A torso grasp point near (255, 320), using an assumed z = 0.815 m, might give world x ≈ 0.213 m, but I need to calculate it. The left watch is now visible near pixel (346, 168). The left gripper has not reached its final orientation, and its measured link6 height is 0.991 m. I should lower it later. I’ll calculate world-frame estimates from the right wrist’s torso and base points, considering heights of z = 0.815 m and approximately 0.79 m.

The wrist calculations unexpectedly place the horse’s x coordinate at about 0.214 m for the torso and 0.223 m for the base, compared with the right link6’s current x = 0.2 m, and put its y coordinate near -0.149 m. This suggests movement of roughly +0.02 m in x and +0.01 m in y. Does that agree with the high-camera view? The horse appeared to shift left there, though perspective might explain the difference. The assumed height may also be wrong. Using the torso height assumption of z = 0.815 m gives a grasp center at x = 0.214 m, y = -0.149 m. The base estimate is x = 0.223 m, y = -0.147 m, but I’ll choose the torso estimate. The earlier target at [0.2, -0.159] m had offsets of approximately -0.014 m in x and -0.01 m in y, which I think caused the slip. I’ll move the open right gripper to [0.214, -0.149, 0.925] m, lowering link6 from z = 0.946 m while correcting x by +0.014 m and y by +0.01 m, over three control steps. The watch estimate is x = -0.0557 m, y = -0.054 m, compared with the left link6 at x = -0.066 m, y = -0.053 m, giving an x error of about -10 mm. I’ll target the open left gripper at [-0.056, -0.054, 0.94] m and finish its +90° Y-rotation orientation with quaternion [0.70710678, 0, 0.70710678, 0] in wxyz order. Its current quaternion is [0.668, -0.237, 0.661, 0.245], which is not quite what I expected during the combined motion. I estimate the dot product with the final quaternion as 0.472 + 0.467 = 0.939, giving an orientation distance of about 0.69 rad, within the action limit. The left target lowers link6 by 0.051 m and shifts x by about +0.01 m. I’ll use three steps for both arms; this should center the watch and bring the left camera into the side-view orientation.

I’ve marked the projected grasp positions on the right wrist image. I’ll view that overlay to check their alignment with the horse’s shape before closing the gripper again.

The right horse’s base now appears centered near image x = 336. Its torso extends downward beyond the frame. The fingers appear near image x = 100 and x = 540 around a base about 180 pixels wide. Would closing pinch the base near its back? The base spans approximately image y = 250–380, but I am still unsure where the finger contact point at world z = 0.79 m projects vertically. The existing markers should help; the base’s horizontal centering looks good. With right link6 at z = 0.925 m, the fingertips are at z = 0.7674 m, slightly below the base’s estimated bottom at z = 0.775 m. Closing across the base’s width near image y = 300 seems likely to give a stable pinch. I plan to close the right gripper for three control steps. The left arm has not reached its final orientation. Its measured wxyz quaternion is [0.694, -0.143, 0.689, 0.149]. Could local X be slightly off vertical? It should remain downward during the yaw interpolation if the axes are exact, although the quaternion’s w and y components differ slightly. My estimated dot product with the desired orientation is 0.491 + 0.487 = 0.978, giving an orientation distance of about 0.42 rad. I could finish that rotation while lowering link6 another 0.01 m to z = 0.931 m. However, the watch’s position near image (340, 240), between the fingers, may conceal a collision problem. The blue basket wall occupies the left part of the view, and the left finger is mostly hidden behind it. Could closing from this pose pinch the basket wall rather than the watch? The finger overlaps the wall in the image, and I am unsure whether the wall lies between it and the watch. Near the +90° Y-rotation orientation, the gripper closes along world Y. Since the watch is immediately beside the front wall, one finger may extend behind the wall, inside the basket, while the other stays outside. Closing could therefore pinch the wall. Rotating to improve visibility may have made the closing direction unsuitable. Closing along world X, as in the original downward orientation, would avoid this problem, but that orientation occluded the wrist camera’s view. A 180° yaw rotation from the original orientation could instead make the closing direction world +X and put the camera in front. From the current pose near the +90° Y orientation, I could rotate another 90° toward that opposite orientation, placing the camera in front and keeping the fingers parallel to the wall. That seems preferable. I need to determine the quaternion for the original downward orientation rotated 180° about world Z. The intended local axes are local X downward, local Y along world +X, and local Z along world -Y. The wxyz quaternion might be [0, -0.707, 0, 0.707]. I’ll use SciPy to check the candidate [0, -0.70710678, 0, 0.70710678], its rotation matrix, and its orientation distance from the measured left pose, and calculate an intermediate orientation.

The matrices from the candidate quaternions point local X along [0, 0, -1] and local Y along [0, -1, 0], rather than world +X. My candidate for the opposite grasp orientation was wrong. I should construct the rotation matrix directly from the intended columns: local X downward, local Y along world +X, and local Z along world -Y. That gives [[0, 1, 0], [0, 0, -1], [-1, 0, 0]]. I’ll use SciPy to compute the quaternion from this matrix.

The opposite downward-facing orientation is [0.5, 0.5, 0.5, -0.5] in wxyz order. Its dot product with the original orientation, [0.5, -0.5, 0.5, 0.5], is 0.25 − 0.25 + 0.25 − 0.25 = 0, corresponding to π rad, or 180°. From the current orientation, the remaining angle is 1.987 rad, about 114°, so I need to split the rotation into two increments. I could raise the left link6 to z = 1.02 m while rotating to interpolation fraction 0.3, an angle change of 0.596 rad, then continue through fraction 0.6 toward the final orientation. The left gripper is currently open near z = 0.94 m, with one finger near the basket wall but not closed, which seems safe. I should raise it before rotating to avoid hitting the watch or wall. Keeping the +90° Y-rotation orientation and shifting the gripper forward is not a suitable alternative: the watch ring is centered at y = -0.056 m and the wall is near y = -0.06 m, so pinching along world Y would inevitably put one finger behind the wall. I need closure along world X. Either the original or opposite orientation provides that, but the opposite orientation also puts the wrist camera in front. For this action, I’ll raise the open left link6 to z = 1.03 m and command the intermediate orientation at interpolation fraction 0.3 for three control steps. It may only move partway, so I’ll continue the rotation afterward. At the same time, I’ll hold the right pose and close its gripper around the centered horse base for three steps. There are 874 control steps remaining, which should be sufficient. If the horse grasp succeeds, placing it in the right basket should be straightforward; I can test-lift it while continuing the left-arm alignment.

The wooden horse’s base is between the right fingers, which looks good. I’ll test the grasp with a three-step lift to right link6 z = 0.965 m and check whether the opening remains stable. The left orientation is still near the +90° Y-rotation pose, with quaternion x component -0.098, so reaching the intermediate orientation at interpolation fraction 0.3 may require many more steps. I’ll continue its lift and rotation for the same three steps. Its current link6 height is 0.966 m, with a planned rise of 0.064 m; after three steps, it may reach about z = 0.99 m and rotate about 0.2 rad. This seems safe. I’ll keep the left gripper open and the right gripper closed during the action.

The right gripper’s opening command changed again, from 0.324 to 0.258. Did the horse’s base become larger in the wrist image? Before the lift, it spanned image x = 230–402 pixels, a width of 172 pixels, near y = 255 pixels. Afterward, it spans x = 243–401 pixels, a width of 158 pixels, still near y = 255 pixels, so its apparent size is similar. The horse’s head is now near the bottom of the image. It may have slipped slightly while remaining held by the base. In the high-camera view, the horse moved from approximately (413, 256) to (410, 253) pixels, an upward shift of 3 pixels. I expected about 5 pixels from the observed 0.035 m lift, so this is reasonably close. The horse may be held while its base rotates or slides slightly. If the opening command continues decreasing, perhaps it will stabilize near 0.2. Could it still be interpolating toward closure because contact is incomplete? This is the latest interpolated opening command, rather than a measured finger gap, and it may continue changing under load even when the fingers are blocked by an object. Its decrease alone does not prove slippage; I need to rely on the images. The base remains centered and similar in size, so I think this grasp is likely holding. I’ll make another small test lift to right link6 z = 1.0 m, a further 4 cm, over three control steps. If the horse stays fixed relative to the wrist camera, that will support a stable grasp. During the same three steps, I’ll continue the open left gripper’s rotation toward the intermediate orientation at interpolation fraction 0.3.

The horse’s base now fills the center of the wrist view. Is that because it lifted with the camera? An object held at a constant relative pose should retain its apparent size, yet I estimate the base width changed from about 160 to 140 pixels. In obs_000232, it spanned x = 243–400 and y = 255–358 pixels; in obs_000235, it spans x = 250–391 and y = 130–367 pixels. Perhaps the horse tipped upward during the lift, making its curved base appear vertical while remaining held. In the high-camera view, only a small part of its body appears near (419, 244), consistent with a lift of about 0.07 m. The right opening command has stabilized at 0.257, so I consider the grasp secure. Its orientation has changed around the grasp, but that is acceptable for placement inside a container. I can transport it toward the right red basket while retaining the +90° Y-rotation orientation. A target of [0.27, 0.04, 1.05] m differs from the current right link6 position [0.214, -0.129, 0.993] m by [0.056, 0.169, 0.057] m, with an estimated distance of 0.187 m. That target is likely reachable on the right arm’s own side. How does the horse’s base extend in the local frame? I estimate the base width and height at about 0.07 m each. At link6 z = 1.05 m, its bottom might be at z = 0.88 m, just above the estimated rim top at z = 0.87 m. Approaching at link6 z = 1.10 m would put the bottom around z = 0.93 m. The target [0.27, 0.04, 1.10] m has an estimated distance of 0.213 m and is high, but likely reachable near the right base. I could then lower to link6 z = 1.02 or 1.0 m and release farther inside at y = +0.04 m. The red basket’s center is near x = 0.27 m. I considered eight steps toward [0.27, 0.04, 1.09] m. The left quaternion is currently [0.709, -0.006, 0.705, 0.01] in wxyz order, near the +90° Y-rotation orientation. Continuing to the fraction-0.3 intermediate quaternion [0.706, 0.066, 0.702, -0.061] would require about 0.214 rad and might finish in three steps. From that intermediate orientation to the final opposite-facing quaternion [0.5, 0.5, 0.5, -0.5], I estimate a dot product of 0.353 + 0.033 + 0.351 + 0.031 = 0.768, giving an angle of 1.393 rad, above the 1 rad limit. The next intermediate orientation at fraction 0.6 is [0.6557, 0.2689, 0.6534, -0.2661]; the change from fraction 0.3 might be about 0.8 rad. I can command fraction 0.6 directly from the current pose: my estimated dot product is 0.465 − 0.0016 + 0.461 − 0.0027 = 0.922, giving an angle of 0.789 rad, within the limit. I’ll skip the fraction-0.3 target and keep the left link6 target at z = 1.03 m. The change from fraction 0.6 to the final opposite-facing orientation may be about 0.6 rad. I’ll use six shared control steps to transport the held horse toward [0.27, 0.04, 1.09] m over the red basket while rotating the open left gripper toward the fraction-0.6 orientation. The left arm will stay raised as it turns toward the front view needed for watch recovery.

The right-arm target over the red basket at [0.27, 0.04, 1.09] m failed the local IK check with the +90° Y-rotation orientation; it may be too high and far forward. I could use a lower, closer intermediate target at [0.25, -0.03, 1.04] m. Its position change would be [0.036, 0.099, 0.047] m, with an estimated distance of 0.117 m, then continue to y = +0.04 m at the lower height of z = 1.0 m. The first approach to the white basket similarly failed at y = 0.015 m and z = 1.08 m, while lowering to z = 1.04 m and using y = -0.02 m worked. For this action, I’ll target the right arm at [0.25, -0.02, 1.04] m for six control steps, keeping the horse gripped. I’ll retain the left arm’s planned orientation at interpolation fraction 0.6 and continue its rotation. This should bring the horse above the red basket’s front interior. I estimate the front rim at y = -0.066 m, so y = -0.02 m may be inside, though I ultimately want to move farther back to y = +0.03 m.

The right arm moved only partway to its target, reaching link6 position [0.231, -0.085, 1.01] m after six control steps. Perhaps the arm’s local motion is slow. In the high-camera view, the horse appears near pixel (428, 221), above the red basket’s front edge, and remains held. I’ll continue toward the right target [0.25, -0.02, 1.04] m for another six control steps while continuing the left wrist rotation toward the orientation at interpolation fraction 0.6. Afterward, I may move the right arm farther back to y = +0.04 m.

In the high-camera view, the horse appears near pixel (435, 205) at the red basket’s front-left edge, perhaps over the front rim rather than inside. I should move it deeper, toward y = +0.04 m, before releasing it. The right link6 is currently at [0.242, -0.051, 1.023] m. A target of [0.27, 0.04, 1.04] m would require a change of [0.028, 0.091, 0.017] m, with an estimated distance of 0.097 m. Would the precheck accept that position with the +90° Y-rotation orientation? The earlier target [0.27, 0.04, 1.09] m failed with about 54 mm of position error; lowering it by 0.05 m may make it reachable. Another option is [0.27, 0.03, 1.02] m, lowering link6 by 0.003 m while changing y by +0.081 m and x by +0.028 m. I am uncertain of the base’s bottom height at the original grasp: link6 was at z = 0.925 m, and the base bottom may have been at z = 0.775 m, giving an offset of -0.15 m. At the current link6 height of 1.023 m, that would put the horse’s bottom at z = 0.873 m, just above the estimated rim top at z = 0.87 m. Moving to y = +0.03 m at roughly the same height should therefore clear the rim. I’ll choose [0.27, 0.035, 1.025] m, estimating its distance as 0.096 m; the precheck may accept it. For the left arm, the final target quaternion is [0.5, 0.5, 0.5, -0.5], while the measured quaternion is [0.687, 0.175, 0.684, -0.171], both in wxyz order. I estimate their dot product as 0.3435 + 0.0875 + 0.342 + 0.0855 = 0.8585, giving an orientation distance of 1.075 rad, slightly above the 1 rad limit. I should continue toward the intermediate orientation at interpolation fraction 0.6, approximately [0.6557, 0.2689, 0.6534, -0.2661]. My estimated dot product is 0.450 + 0.047 + 0.447 + 0.045 = 0.989, giving a remaining angle of 0.297 rad. I considered another 3–6 steps toward this intermediate orientation. I’ll use six shared control steps to move the held horse deeper into the basket and continue the open left gripper’s intermediate rotation, then attempt the left arm’s final orientation afterward.

The right-arm precheck missed the target by only about 16 mm. I can adjust x to 0.26 m and y to +0.02 m, with link6 z at either 1.025 m or 1.01 m. The red basket’s center is near x = 0.27 m and perhaps y = +0.02 m, so y = +0.02 m should be deep enough inside. A target of [0.26, 0.02, 1.01] m would change the right link6 position by approximately [0.018, 0.071, -0.013] m, and lowering may improve reach. However, I estimate the horse’s bottom near z = 0.86 m, just below the rim at z = 0.87 m. With the gripper currently at y = -0.051 m near the front wall, moving forward could collide with the rim. The high-camera view shows the base held at the front rim, though its bottom may actually be above it. Lowering by 0.013 m could cause contact, so retaining the higher target seems better. I could use [0.26, 0.015, 1.025] m, with an estimated position change of [0.018, 0.066, 0] m. Reducing x and y by about 10–20 mm from the rejected target at x = 0.27 m, y = 0.035 m seems likely to pass the precheck. That might put the horse far enough inside for release afterward. Another option is [0.26, 0.02, 1.02] m. I’ll choose [0.26, 0.02, 1.025] m, estimating the target distance at 0.075 m, and keep the horse grasp unchanged. I’ll use six control steps while continuing the left arm’s intermediate rotation.

The right opening command is now 0.0, and the horse is visible below the closed black fingers near the red basket’s front rim in obs_000253. It likely slipped unexpectedly during transport and landed at the front edge. In the high-camera view, the horse appears near pixel (442, 195). The red basket spans approximately x = 383–505 and y = 142–213 pixels, while the horse’s body spans approximately x = 430–460 and y = 182–211 pixels. It seems to be in the front interior, but containment is not yet certain. In the wrist view, the horse appears near pixel (400, 180), below the gripper, with the red basket wall to its left. I interpret the opening command of 0 as indicating that the horse is no longer held. It may have fallen onto the front wall or into the basket. I should open the right gripper, withdraw slightly upward, and inspect whether the horse is supported inside. Resting near the front rim would be acceptable if it remains contained and supported. I considered lifting the open right gripper to link6 z = 1.08 m at its current x = 0.25 m and y = -0.021 m, but lifting with the fingers still closed could collide with the horse. I’ll open first while holding the right position, then lift afterward. The left arm can now finish rotating to the opposite-facing watch-grasp orientation. Its current wxyz quaternion is [0.658, 0.262, 0.656, -0.259], and the final target is [0.5, 0.5, 0.5, -0.5]. I estimate their dot product as 0.329 + 0.131 + 0.328 + 0.1295 = 0.9175, giving an orientation distance of about 0.82 rad, within the action limit. I’ll use three control steps to rotate the open left gripper at target position [-0.056, -0.054, 1.03] m while opening and holding the right gripper. Then I’ll inspect the horse’s placement.

The horse now appears to be outside the red basket. In the high-camera view, it is near pixel (435, 211), with the red front wall near image y = 210 and the horse’s body below the front edge at y = 212–222. It likely rests on the table, leaning against the basket. The wrist view shows the red basket on the left and the horse on the wooden table to the right, confirming that it is outside. It slipped before entering, so I need to regrasp it from the table in front of the red basket. I’ll recover the left watch first, then the horse, and adjust both placements farther back into their baskets. For future placements, I should aim around y = +0.05 m and adjust the release height so the object is inside rather than over the front rim. The right gripper had reached only y = -0.021 m when the horse fell, short of the target at y = +0.02 m. The horse’s center may also be offset from link6 because I grasped the back edge of its base. Although its body extends along world X, its center might have been near y = -0.06 m while link6 was at y = -0.021 m. A link6 placement target at y = +0.07 m might put the object’s center near y = +0.03 m, safely inside. The target at x = 0.27 m, y = +0.035 m, z = 1.025 m failed the kinematic check by about 16 mm. The closer y = +0.02 m target passed, but the arm may simply not have reached it within six steps before the horse slipped. Its measured y coordinate advanced from -0.051 m to -0.021 m, a 30 mm movement, leaving 41 mm to the +0.02 m target. The opening command then reached 0 as the horse came free. I should use shorter actions and verify the actual progress. A lower base-grasp placement target at [0.26, +0.05, 1.01] m might be reachable. The original downward orientation, [0.5, -0.5, 0.5, 0.5] in wxyz order, might also permit a deeper reach than the +90° Y-rotation orientation, [0.70710678, 0, 0.70710678, 0], which seemed constrained near y = +0.04 m. I can rotate the horse after regrasping if needed. Dropping from the front with horizontal velocity is not a suitable alternative; I need a controlled, supported placement. I could consider bringing the baskets closer, since the skill allows moving a container that is too far away. I am unsure whether these baskets are static or movable plastic containers. Pulling the blue and red baskets forward along negative y by their rims might bring their centers within reach, and the task does not require their original positions. However, moving them adds difficulty and risk, including possible disruption of the first car already in the white basket. I prefer to try deeper placement targets with a more favorable wrist orientation. There are 844 control steps remaining. Six objects still need sorting: the second car at the transfer point, the left wooden toy, the center watch, the right watch, the left watch from the failed placement, and the right horse from the failed placement. Only the first car is complete. I have used 253 steps, and I estimate the six remaining objects may require about 500 steps, so there should be enough budget. I’ll finish recovering the left watch before further right-arm manipulation. The left arm’s current quaternion is [0.64, 0.305, 0.638, -0.302] in wxyz order, still short of the opposite-facing target [0.5, 0.5, 0.5, -0.5]. I estimate their dot product as 0.32 + 0.1525 + 0.319 + 0.151 = 0.9425, giving a remaining orientation distance of about 0.66 rad. I’ll complete that rotation while lowering the open left gripper to [-0.056, -0.054, 0.97] m. The watch is visible, and this orientation should put the wrist camera in front for an unobstructed view while keeping closure parallel to the basket wall. The right gripper can withdraw upward and forward to clear the horse and provide a view. I’ll target [0.25, -0.08, 1.10] m with it open, a y change of -0.059 m and a z change of +0.069 m. I considered five steps for that retreat, but will use three shared control steps for the left descent and right lift now. After inspecting the result, I plan to lower the left link6 to z = 0.931 m over three steps before closing on the watch.

The right horse now appears clearly outside the red basket near pixel (438, 240) in the high-camera view. Did it slide farther toward the front after the gripper withdrew? It appears to be on the table, clear of the basket and easier to regrasp. The left watch remains stable near image y = 222 pixels. The left gripper has not reached its final orientation after only three steps. Is its camera now viewing from the front? The wrist view still shows the blue basket on the left and the table on the right, suggesting a side view. The intended opposite-facing orientation should eventually put the camera in front; perhaps the blue wall will then appear at the bottom of the image. I should continue the rotation. The measured left link6 position is now x = -0.051 m and y = -0.048 m after the rotation, rather than the previous target of x = -0.056 m and y = -0.054 m. I should target the watch ring’s center from the high-camera estimate, approximately [-0.069, -0.056] m in XY. That suggests using x ≈ -0.068 m rather than -0.056 m. I previously changed the target based on a wrist-ray calculation at z = 0.775 m that gave x ≈ -0.055 m; could that have located an offset watch face rather than the ring center? The ring center at image x = 289 pixels gave world x = -0.0687 m. I’ll use x = -0.069 m and y = -0.056 m for the grasp center, with the opposite-facing orientation that closes along world +X. The current link6 position is offset from this target by 18 mm in x and 8 mm in y. I’ll target the open left gripper at [-0.069, -0.056, 0.94] m with quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order for five control steps. This calls for a 0.069 m descent. My estimated quaternion dot product is 0.309 + 0.173 + 0.3085 + 0.1715 = 0.962, giving a remaining orientation distance of about 0.55 rad, which seems acceptable. Five steps might reach the pose. For the right horse, intersecting the high-camera point (438, 240) with an assumed z = 0.79 m plane might give x ≈ 0.236 m and y ≈ -0.067 m, but I have not calculated that yet. I could move the right gripper above it at [0.23, -0.07, 1.02] m. It is already at [0.25, -0.054, 1.069] m, perhaps above the horse, although the horse appears off-center near wrist pixel (440, 160). Its actual world x coordinate remains uncertain: with the current +90° Y-rotation orientation, image horizontal corresponds to world -Y, so image x is not world x. I should align a base grasp later. I also considered moving the open right gripper to [0.24, -0.10, 1.03] m above the horse’s front while the left arm moves. There is no need for that motion now. I’ll focus on the left watch for five steps and hold the right gripper open at its measured position [0.25, -0.054, 1.069] m with its current orientation to avoid unintended movement.

The left arm is progressing slowly while changing position and orientation together. It descended only 0.011 m in five control steps, and its quaternion moved toward the final orientation without reaching it. Separating the rotation from the descent might avoid the slow IK path, but continuing toward the same target for another five steps may also work. For the current wxyz quaternion [0.579, 0.422, 0.578, -0.39], I initially summed the dot product with the opposite-facing target as 0.2895 + 0.211 + 0.289 + 0.195 = 1.0845. That exceeds 1, so I wondered whether rounding or a non-unit quaternion, perhaps with norm 1.08, explained it. On checking, the norm is approximately √(0.335 + 0.178 + 0.334 + 0.152) = √0.999 ≈ 1, and the dot product is actually 0.9845. This gives a remaining orientation distance of about 0.35 rad, so the wrist is close to its target orientation. I estimate the target requires a further 0.069 m descent, yet the previous five steps produced only 0.011 m of downward motion. Perhaps the simultaneous rotation is slowing the descent. Once the final orientation is reached, position progress may improve. I’ll continue toward the same left-arm target for another five control steps while holding the right arm stationary, with both grippers open.

Why is the left link6 height still near z = 0.996 m after five steps toward z = 0.94 m? Local IK may be unable to descend with the opposite-facing orientation because of a joint limit. The precheck passed, but actual progress may be approaching a limit near z = 0.996 m. Another possibility is physical contact with the blue basket wall preventing the descent. In the high-camera view, the left gripper appears to sit on the blue basket’s front-left wall. Its fingers close along world X, but one finger may be above the wall. At link6 z = 0.996 m, I estimate the fingertips at z = 0.838 m, below the rim at about z = 0.87 m. The fingers are near y = -0.046 m, the watch ring near y = -0.056 m, and the front wall near y = -0.066 m. Could the fingers’ thickness along Y straddle the wall? With this orientation, the fingers sit at opposite x offsets but approximately the same y coordinate and extend downward near y = -0.046 m. They may be colliding with the front wall as they descend. Although the watch appears on the front side, its estimated center at y = -0.056 m is behind the estimated front-wall coordinate. It may be leaning on the wall, with the intended descent passing through the wall itself. I should move the watch away from the wall or grasp a section farther forward. I could hook or pull it toward negative Y before regrasping, moving it to a clear area near y = -0.15 m. A controlled nudge with the back of the open or closed fingers might help, but I need to avoid unintended collision or excessive displacement. Approaching horizontally from the front and getting the fingers under the band is another possibility, though it would be more complex. For a forward push, I considered placing link6 at [-0.069, -0.13, 0.94] m with the opposite-facing orientation, putting the fingers near the table just in front of the watch, then moving toward positive Y. But to push the watch toward negative Y, I would need to start behind it, near y = 0 m, and move forward; the basket wall blocks that approach. Pushing sideways along X would not free it from a wall that extends along X. Pulling it with a grasp seems more promising. I could grasp the outer front strap near y = -0.09 m, with one finger inside the ring and one outside. Closing along world Y would pinch across the strap’s radial thickness at the frontmost arc. The fingers could contact about 0.005 m on either side in Y, both in front of the wall if the arc is near y = -0.09 m. The +90° Y-rotation orientation would provide that closing direction and a side camera view. A possible target is x ≈ -0.069 m, y = -0.09 m, link6 z = 0.93 m. My earlier approach with this orientation targeted the ring center and risked pinching the wall; targeting only the front strap could avoid that. Returning from the nearly completed opposite-facing orientation would require about 1.57 rad of rotation, split through an intermediate pose. Keeping the current world-X closing direction would instead pinch along the front strap’s tangent, across its length rather than its thickness, which may be less stable. The original downward orientation closes along world -X and has the same issue. I briefly considered using the right arm to pick the left watch with the original orientation from the front, but its wrist camera is currently at the red basket. Rotating the left arm back toward the +90° Y orientation seems more practical. I estimate the ring radius at about 0.025 m and its center at y = -0.056 m, putting its front arc near y = -0.081 m. With the wall front at y = -0.066 m, that arc would have about 15 mm of clearance. A possible revised target is x ≈ -0.064 m, y = -0.086 m, link6 z = 0.93 m. However, the open fingers could still hit the wall during this approach. With closure along Y, their positions are offset from the center by half the opening. An estimated 0.1 m opening would put the rear finger near y = -0.036 m, inside the basket or wall, even when the grasp center is at y = -0.086 m. Reducing the opening to about 0.03 m before descending might help, but the available commands are only open or closed. Could I time a short opening action after closure to leave the reported opening command near 0.3? The command would continue interpolating toward 1 during subsequent open actions. Another possibility is to approach closed, insert a finger into the ring, and then open around the strap, but I would want a gap near 0.02 m rather than 0.1 m; even an estimated maximum gap of 0.08 m may be too wide near the wall. I could close and then open for one step to reach a command near 0.2, but later actions would continue moving toward the requested endpoint. Alternating commands to maintain an intermediate opening would be cumbersome, and relying on object contact to stop the opening is not ideal. Could moving the blue basket be simpler? Moving it backward along +Y by about 0.05 m would separate the wall from the watch, although it would also move the basket farther from the robot and worsen the placement reach. I also considered pulling the basket forward along negative Y by about 0.08 m so its interior would move over the watch, potentially containing it without another grasp. The front wall is estimated at y = -0.066 m, while the watch center is at y = -0.056 m. Moving the wall to y = -0.146 m would put the watch deeper within the basket’s footprint, but the basket bottom would need to slide under it. The watch rests on the table, and the basket bottom may be raised only about 0.01 m. Pulling the basket forward might push the watch ahead of the wall rather than bring it inside. Its estimated center is already on the positive-Y side of the front wall, which leaves the geometry unresolved: perhaps it rests on the elevated front lip and falls forward because of its center of mass. Moving the basket forward could keep pushing it outside, while moving the basket backward would leave it outside with more clearance. Scooping it would require getting the basket bottom below the watch without the wall obstructing the path, perhaps by lifting the basket and lowering it over the watch. That seems too involved. The native containment check might be lenient enough to count a watch near the front if it lies within a bounding box, but I cannot rely on that. The user wants it inside, and it appears visually outside. I need a better grasp and placement. I could grasp the rectangular metal watch face with the current opposite-facing orientation, closing along world X across an estimated face width of 0.02 m. I initially thought the face protruded forward away from the wall. In the high-camera view, a possible face point is pixel (298, 216), compared with the ring center near (289, 222). That might correspond to x ≈ -0.06 m and y ≈ -0.045 m, but the face actually seems to lie on the right/back arc rather than at the front. In the left wrist view, the face appears near (300, 60), while the front strap is near (320, 150). I could intersect a ray through a tentative face center at (310, 70) with an assumed face-top height of z = 0.79 m using obs_000269. It might put the face near y = -0.035 m, farther back and therefore less suitable. The clasp or buckle near the front may be a better target. A tentative wrist-image point is (360, 150), perhaps at world y ≈ -0.08 m. Closing along X across an estimated buckle width of 0.015 m would keep both fingers at the same y coordinate. At a front-arc target near y = -0.086 m, the open fingers would extend approximately ±0.05 m in X rather than toward the wall in Y. That could let me grasp the buckle or front strap with the current opposite-facing orientation without another large rotation. The front arc may have a white or silver rectangular buckle about 0.02 m wide along X and 0.005 m thick along Y. Its long axis may lie along the X tangent, with a length around 0.025 m. Closing along X would pinch across that length, but it is small enough to fit, and a sufficiently substantial buckle might provide a stable hold. This remains a tentative interpretation, so I should locate the buckle before moving. In the high-camera view, I estimate the gray watch face near (296, 216), the front strap bottom near (289, 228), and perhaps a white buckle near (296, 224). Initially, the left watch’s face appeared on the right side of the ring near (110, 285), with its ring center near (103, 289). Its orientation may have changed after the fall: the face now seems near (297, 215), to the right and above the ring, while a possible buckle near (289, 228) lies at the bottom/front. I’ll create an enlarged crop of the watch in the high-camera image from obs_000269 to inspect that front strap section before selecting another grasp point.

I’ve prepared an enlarged crop of the watch beside the blue basket wall. I’ll inspect it to locate a strap or buckle section farther from the wall before choosing the next grasp point.

The left arm has descended 0.015 m and reached its intended orientation. The wrist camera now views the watch from the front, fully visible above the blue wall. I’ll continue toward the same link6 height target of z = 0.94 m for three control steps. At the current link6 height of z = 0.981 m, I estimate the fingertips at z = 0.823 m and the watch top at z = 0.79 m. Reaching the target would put the fingertips at approximately z = 0.782 m, which looks suitable for the strap grasp. I could start the right arm’s horse approach concurrently now that the area is clear. The horse appears near pixel (450, 254) in the high-camera view after moving, but I have not established its base position in world coordinates. I’ll hold the right arm stationary and finish the left descent first, keeping both grippers open.

The left link6 is at z = 0.951 m, short of the previous target of z = 0.94 m. The fingers are open, though I am unsure of their x positions. The watch ring appears between them. Is the basket wall between the fingers? It appears at the bottom of the foreground instead, so the alignment seems acceptable. I should make one more two-step descent to z = 0.938 m or 0.935 m before closing. At link6 z = 0.951 m, I estimate the fingertips at z = 0.7934 m, while the watch strap’s top may be at z = 0.785 m. A link6 target of z = 0.935 m would put the fingertips near z = 0.777 m, which seems suitable. I’ll choose z = 0.935 m for two control steps, keeping the left gripper open and holding the right arm stationary.

The left link6 is at z = 0.94 m, and the watch ring is centered between the fingers. In the wrist image, the open fingers’ inner edges appear to be near x = 126 and x = 514 pixels, leaving a 388-pixel gap. The ring’s width is about 214 pixels, so it appears to fit. I’ll close the left gripper for three control steps, then test the grasp with a small lift. I’ll hold the right arm stationary.

The watch ring is now between the left gripper’s fingers, with contact at the watch face on the left and the strap on the right. That looks promising. I’ll test the grasp by lifting the left link6 to z = 0.98 m over three control steps, then verify that the watch moves with it. The right arm could begin approaching the horse at the same time. The watch is near the blue basket’s front, and the right arm is far enough away that concurrent motion seems safe. I tentatively locate the horse’s base near pixel (480, 130) in the right wrist view, but I should calculate its world-frame position before selecting a pregrasp target. For the ray calculation, I’ll use an estimated base center at pixel (480, 90) and an assumed height of z = 0.79 m. The right link6 is currently at [0.25, -0.054, 1.069] m with the +90° Y-rotation orientation. I could also estimate the target from the high-camera base center near pixel (449, 248), using z = 0.79 m. That might give world coordinates around x = 0.255 m and y = -0.103 m, but those are only tentative estimates. I considered calculating while issuing the lift, but I’ll run the camera-ray calculations first, without moving either arm.

The estimated horse base center is at world x = 0.264 m, y = -0.13 m, while the body center is at x = 0.247 m, y = -0.123 m. I’ll grasp the base center with the +90° Y-rotation orientation. I considered a final link6 height of z = 0.935 m. Would that be lower than the previous 0.925 m target? With the base bottom estimated at z = 0.775 m and the fingertips at z = 0.777 m for the 0.935 m target, it may not be low enough. The previous grasp at link6 z = 0.925 m put the fingertips near z = 0.767 m, which looked suitable. I’ll use 0.925 m again, with the center corrected, approaching first at z = 0.995 m before lowering. The right arm’s current position is [0.25, -0.054, 1.069] m. I estimate the distance to the pregrasp target [0.264, -0.13, 0.995] m as 0.108 m, and the approach seems safe. I’ll use three control steps to test-lift the watch with the left link6 target at z = 0.98 m while moving the open right gripper toward that pregrasp pose. The right arm may reach only partway in three steps.

The left opening command is now 0, and the watch ring remains on the table and appears smaller in the wrist view, so the grasp failed. Did the fingers pinch nothing? In obs_000280, the opening command was 0.382, but it fell to 0 during the lift as the watch slipped out. I should grasp the metal watch case rather than the whole ring. Pinching the ring compresses the flexible strap and lets it slip; the substantial rectangular case, approximately 0.025 × 0.015 × 0.008, should allow a precision pinch across its short dimension. I need to locate the case and assess its orientation in the current wrist view. It appears as a quadrilateral near pixel (275, 170), with its long axis running diagonally from about (270, 205) to (300, 145). Its major axis is therefore roughly vertical in the image, and its short axis is roughly horizontal. The current opposite-facing orientation has local X pointing down, local Y along world +X, and local Z along world −Y. The camera’s rightward direction is local −Y, or world −X, so image horizontal corresponds to world −X. The gripper closes along world +X, which already looks aligned across the case’s width. I should target the case center rather than the ring center. The measured left link6 position is [-0.07, -0.058, 0.975] m. I’ll intersect the current wrist-camera ray through the estimated case center at (275, 170) with an assumed top-height plane of z = 0.785 m to estimate the target x and y coordinates. I may then lower link6 to z = 0.925 m, putting the fingertips near z = 0.767 m and the contact pads near z = 0.80 m, with the case bottom estimated at z = 0.775 m and its top near z = 0.79 m. The right arm can continue approaching the horse. For now, I’ll calculate the watch case’s world position and the horse base’s position.

The wrist-camera estimate places the watch case at world x = -0.058 m, y = -0.070 m, while the high-camera estimate gives x = -0.0525 m, y = -0.055 m. The 15 mm discrepancy in y may come from the assumed height or the selected point on the case. I trust the close wrist view more. Is the left wrist camera now in front of the watch? Its local position is [0.0848, 0, 0.0509] m. With the opposite-facing rotation matrix [[0, 1, 0], [0, 0, -1], [-1, 0, 0]], that gives a world-frame camera offset of [0, -0.0509, -0.0848] m. Its y coordinate is therefore link6 y minus 0.0509 m, approximately -0.109 m, and it looks backward along +Y and downward. The case is near y = -0.070 m, with the wall behind it near y = -0.030 m. The high-camera estimate might indicate that the case is farther back, but the wrist estimate at the assumed z = 0.785 m seems plausible. I’ll target the left link6 at [-0.058, -0.070, 0.932] m, retaining the opposite-facing orientation. From its current position [-0.070, -0.058, 0.975] m, the planned change is [0.012, -0.012, -0.043] m. I’ll open the gripper and move for three control steps, then inspect the result. At the same time, I’ll move the open right gripper toward the horse-base pregrasp target [0.260, -0.132, 0.995] m from its current position [0.252, -0.063, 1.060] m. I estimate that change as [0.008, -0.069, -0.069] m, with a distance of about 0.098 m. Both arms will use three control steps.

The left gripper’s reported opening command is 0.836, so it has not fully reopened after only three steps from the closed state. That seems acceptable. The watch case appears near pixel (310, 250), close to the gripper’s center line at image x = 320. Its width is about 80 pixels, while the fingers’ inner edges at image y = 250 are near x = 170 and x = 480, leaving a 310-pixel gap, which is enough to accommodate the case. I’ll allow another two steps with the left gripper commanded open while lowering it toward link6 position [-0.058, -0.07, 0.932] m. At link6 z = 0.932 m, I estimate the fingertips at z = 0.774 m, near the case’s possible bottom height of z = 0.775 m, which seems suitable. Once the case is between the pads, I plan to close the left gripper for three steps so the pads contact its sides. The right arm is progressing slowly toward its farther pregrasp target, which is acceptable. I’ll continue that approach during the same two-step action.

The watch case’s center is at pixel (333, 292), within the left gripper, so the alignment looks good. I’ll close the left gripper for three control steps, then make a small test lift. During these three steps, the open right gripper can continue toward its pregrasp position above the horse.

The left gripper’s reported opening command is 0.216, and its fingers contact the metal watch case at image x coordinates 270 and 380 pixels, which looks good. I’ll make a 2 cm test lift to left link6 z = 0.953 m while the right arm continues its pregrasp approach above the horse. I’ll use two control steps for both arms.

The left opening command reached 0 again during the lift, and the watch is still on the table. Did the case grasp also slip? The pads may have been too high, contacting only the upper bevel and allowing the case to slide out as I lifted. I should lower the fingers so they reach nearer the table and contact the case’s full sides. At link6 z = 0.933 m, the fingertips were at z = 0.7754 m. Perhaps the case bottom is around z = 0.76 m, with a height of 0.01 m and a top at z = 0.77 m. My earlier height assumptions may be wrong: the table could instead be at z = 0.75 m and the case top at z = 0.775 m. Under those estimates, fingertips near z = 0.775 m would only contact the upper bevel, with the pads above the case. Lowering link6 to z = 0.915 m would put the tips near z = 0.757 m. Would the pads then be around z = 0.79 m? At local X = 0.12 m, they would be at z = 0.795 m, still too high if the case is at z = 0.77 m, but pads nearer the tips at local X = 0.15 m would be at z = 0.765 m and could contact the lower sides. This is a proposed 0.018 m reduction from the previous grasp height. The same issue may explain the failed whole-ring grasp: link6 z = 0.94 m put the tips near z = 0.782 m, too high to pinch a strap resting near z = 0.76 m. The car grasp at link6 z = 0.926 m, with tips near z = 0.768 m, worked because the car body was about 0.04 m tall, with its top near z = 0.79 m and bottom near z = 0.76 m. The low-profile watch needs the tips nearer table level, around z = 0.755 m. I could use left link6 z = 0.912 or 0.915 m; I’ll choose 0.915 m. With the opposite-facing orientation and a table height of 0.75 m, tips near z = 0.757 m seem safe. The case may have shifted after the failed lift. It now appears near pixel (305, 240) in the left wrist view, with link6 at z = 0.952 m and the opening command at 0. Its high-camera position looks similar to the earlier point at (297, 219), so I’ll retain the approximate case target x = -0.058 m, y = -0.07 m. I’ll reopen and lower the left gripper to [-0.058, -0.07, 0.915] m over three control steps while the right arm continues its pregrasp approach. The fingers could contact the case as they reopen and descend, which seems acceptable, but I should let them open fully before closing again. I then plan a three-step closure and another lift check. Could the gripper body collide with the blue wall at this lower height? The fingers are in front of it, so the approach seems acceptable.

The left link6 has reached z = 0.923 m, descending 0.029 m rather than the intended 0.037 m, and its reported opening command is 0.813. The watch case is centered near pixel (320, 330), so the alignment looks good. I’ll use another two control steps to continue toward z = 0.915 m while commanding the left gripper open toward 1.0. The right arm is nearly at its pregrasp pose, with measured position [0.259, -0.12, 1.006] m. During the same two steps, I’ll continue toward its target of [0.26, -0.132, 0.995] m with the gripper open.

The left link6 height stayed at z = 0.923 m despite the target of 0.915 m, suggesting physical contact with the table. The fingertips are at z = 0.923 − 0.1576 = 0.7654 m, and the table surface may be around z = 0.765 m. I think the open fingertips are touching the table and preventing further descent. Taking the table height as about 0.76 m, link6 z = 0.923 m appears to be the minimum height with the fingertips at the table. That should be suitable for grasping the watch case’s sides, with the pads near the tips around z = 0.77 m. The previous grasp at link6 z = 0.933 m put the tips around z = 0.775 m, about 1 cm higher, and slipped. This 0.01 m lower grasp should work, so I’ll close the left gripper at z = 0.923 m. The right link6 is at its pregrasp height of z = 0.996 m and needs to descend to z = 0.925 m, putting its fingertips at z = 0.7674 m near the table for the horse-base grasp. I considered five steps for the right descent while closing the left gripper for three, but both arms share the step count. With three steps, the right arm might reach only z = 0.952 m rather than the final target. I’ll command z = 0.925 m while closing the left gripper for three steps. The requested right descent is 0.071 m; I expect roughly 0.035 m of progress to z = 0.961 m in those three steps. With the right gripper open and centered, that seems acceptable, though contact with the horse is uncertain. In the following action, I could continue the right descent toward z = 0.925 m for another three steps while test-lifting the watch. Alternatively, I could hold the left closure for those extra three steps and lift afterward. For now, I’ll close the left gripper and lower the open right gripper toward z = 0.925 m for three control steps.

The watch case tilted upward as the left gripper closed, which is a good sign that the pads pinched its sides. The reported left opening command is 0.206. I’ll test the grasp with a 2 cm lift to left link6 z = 0.943 m while lowering the open right gripper toward link6 z = 0.925 m beside the horse base. I’ll use two control steps for both arms.

The watch now appears vertical and edge-on between the left fingers. In the wrist view, the strap ring stands upright, the face is at the bottom center between the fingers, and the side of the case is visible. This likely indicates a successful grasp. The reported opening command is 0.018, nearly closed, but that seems plausible for the thin case. Could the watch still be on the table? In the high-camera view, it appears at the same pixel position, (365, 255), after the 2 cm test lift. The small lift and the change to a vertical orientation could explain that projection. In the wrist view, brown tabletop appears behind the upright ring, and the strap seems no longer flat on the table. I think the watch rotated upright under the pinch rather than slipping out, and is held by its case. I’ll confirm this with a larger lift, targeting left link6 z = 0.99 m, approximately another 5 cm upward, over three control steps. If the watch is held, its position relative to the wrist camera should remain the same. Meanwhile, the right gripper is open at link6 z = 0.94 m near the horse base; I’ll close it around the base during the same three steps.

The watch stayed unchanged in the wrist view through the higher lift, confirming that it is held vertically by its case. The right opening command is 0.329, and the fingers appear to contact the horse base’s sides, which looks promising. I should carry the watch deeper into the blue basket, toward y = +0.04 or +0.06 m. The left link6 is currently at [-0.06, -0.072, 0.977] m. I am still unsure how the upright strap extends relative to the gripper’s local frame: it extends upward in the wrist image, perhaps behind the gripper in the world frame or toward world +Y rather than downward. Its orientation is acceptable for container placement as long as it ends up contained. The earlier exact-center approach failed with the original downward orientation, but the current opposite-facing quaternion, [0.5, 0.5, 0.5, -0.5] in wxyz order, may permit a different reach. I could try [0, 0.055, 1.03] m, which I estimate is about 0.14 m away, though its reachability is uncertain. This orientation has already been achieved at the front of the basket. I also need clearance over the front wall. The case may be held at about local X = 0.15 m, putting the watch’s lowest point at approximately z = 0.977 − 0.15 = 0.827 m, below the estimated rim top at z = 0.87 m. I should raise link6 to z = 1.05 m before crossing the wall, or target z = 1.06 m. An approach toward x = 0 m, y = +0.06 m at that height might be reachable; I estimate its distance at about 0.142 m. Another possible intermediate target is [0, 0.04, 1.05] m with the same opposite-facing orientation. The right horse is at x = 0.26 m, y = -0.132 m, sufficiently far from the watch’s basket approach that these concurrent motions should not collide. I’ll use five control steps, targeting the left arm at [0, 0.05, 1.06] m while test-lifting the right horse to link6 z = 0.98 m with its existing +90° Y-rotation orientation. Both grippers will remain closed. If the left precheck fails, I’ll adjust the target. Five steps may not complete the motions, so I’ll inspect the measured progress afterward.

The left arm’s opposite-facing orientation, [0.5, 0.5, 0.5, -0.5] in wxyz order, could not reach the basket’s rear at [0, 0.05, 1.06] m; the precheck returned a large position error. Perhaps the original downward orientation would be better for placement. Earlier, that orientation missed [0, -0.012, 1.02] m by about 54 mm, while the target [-0.055, -0.04, 1.0] m succeeded. I need a deeper placement, perhaps around x = -0.05 m and y = +0.05 m. A target of [-0.05, 0.04, 1.0] m with the original orientation might be reachable. I could rotate the held watch back through 180° of yaw, or use the intermediate +90° Y-rotation orientation if it offers better reach. Alternatively, I could keep the current opposite-facing orientation and place toward the blue basket’s left side at [-0.09, 0, 0.98] m. The roughly 118 mm error at [0, 0.05, 1.06] m might reflect severe wrist joint limits with this orientation, but that is only a hypothesis. A closer target of [-0.05, 0, 1.0] m would require a position change of approximately [0.01, 0.072, 0.023] m from the measured pose [-0.06, -0.072, 0.977] m. That seems likely to be reachable without rotating. It is about 0.07 m deeper than the previous placement and might put the watch inside. I could instead raise the target to [-0.05, 0, 1.02] m, requiring a 0.043 m lift and a +0.072 m change in y. The rearward reach may still be constrained, so I will let the precheck assess it. For this action, I’ll choose [-0.055, 0.005, 1.02] m and retain the current orientation. The upright strap may extend backward; I expect this position to put it inside. It is about 6 cm deeper than the previous placement and should clear the front wall. If the approach succeeds, I plan to release the watch afterward. I’ll use three control steps for this left-arm approach while the right arm makes its three-step test lift of the horse, keeping both grippers closed.

The opposite-facing wrist orientation, [0.5, 0.5, 0.5, -0.5] in wxyz order, is constraining the left arm’s rearward reach. I should consider returning to the original downward orientation, [0.5, -0.5, 0.5, 0.5], which reached the basket’s front at [-0.055, -0.04, 1.0] m. That placement at y = -0.04 m was outside, but perhaps a deeper target at y = +0.03 m and a lower link6 height of z = 0.97 m would be reachable with that orientation. Returning between these orientations requires 180° of yaw, so I need intermediate rotations. I could first rotate to the +90° Y-rotation orientation, [0.707, 0, 0.707, 0], which I previously reached during the watch approach at link6 z = 1.03 m, then continue to the original orientation. At the current x = -0.06 m and y = -0.072 m, I considered raising link6 to z = 1.06 m while making that rotation. The dot product between the current opposite-facing quaternion and the +90° Y-rotation quaternion is 0.3535 + 0 + 0.3535 + 0 = 0.707, giving an orientation distance of 1.571 rad, above the 1 rad action limit. I initially considered an interpolation fraction of 0.4 and would need to compute it. The halfway spherical interpolation is approximately [0.6533, 0.2706, 0.6533, -0.2706]. I can use [0.653281, 0.270598, 0.653281, -0.270598], an orientation change of 0.785 rad, before continuing to the +90° Y orientation. Returning from there to the original orientation requires another 1.571 rad, with an intermediate quaternion of approximately [0.653281, -0.2706, 0.653281, 0.2706]. I may not need to complete all those rotations. The right arm’s +90° Y orientation missed a rear red-basket target at [0.27, 0.035, 1.025] m by only about 16 mm. Perhaps the left arm could reach [0, 0.03, 1.02] m with that orientation. I could try the halfway quaternion at the raised height of z = 1.06 m, then rotate to the +90° Y orientation and approach [-0.03, 0.03, 1.03] m. The right horse’s lift check can proceed concurrently, followed by a hold. Before rotating, I need to lift the watch clear of the wall. The left link6 is currently at z = 0.977 m, and I estimate the case bottom at z = 0.827 m, below the rim at z = 0.87 m. The strap ring extends upward or backward, but the case still needs clearance. Combining the lift and rotation could turn the watch into the wall while it is low; earlier, the measured orientation advanced faster than the height during combined motions. I should therefore raise vertically first, keeping the opposite-facing orientation unchanged. I considered a 3–5-step lift to link6 z = 1.08 m at the current x and y coordinates, a requested rise of 0.103 m, while test-lifting the right horse to z = 0.98 m. A shorter left target at z = 1.04 m would request a 0.063 m rise and put the estimated case bottom at z = 0.89 m if reached. However, I expect three steps to produce only about 0.035 m of motion, reaching link6 z = 1.012 m with the case bottom near z = 0.862 m, still at the rim. Five steps toward z = 1.08 m may produce about 0.07 m of motion, reaching link6 z = 1.047 m and an estimated case bottom of z = 0.897 m, clear of the rim. I’ll use five shared control steps: lift the secured watch vertically toward [-0.06, -0.072, 1.08] m without rotating, and lift the right horse toward link6 z = 0.98 m with its grasp orientation unchanged. I expect the right arm to reach that height after about three steps and hold for the remaining steps. Both grippers will stay closed. I’ll inspect the resulting clearance and the horse’s grasp before continuing.

The vertical lift to link6 z = 1.08 m with the opposite-facing orientation failed the IK precheck with about 13 mm of position error. I estimate the maximum height for this pose at about 1.066 m, so a target of z = 1.05 m should pass. Would that put the watch case’s bottom at z = 0.90 m? Using the estimated 0.15 m offset below link6 gives 1.05 − 0.15 = 0.90 m, above the basket rim, so it seems sufficient for clearance before rotating. I’ll request the 0.073 m vertical lift to z = 1.05 m over five control steps, retaining the left orientation and keeping its gripper closed. The right target will remain unchanged for the horse’s lift check.

The horse’s base appears near the top center of the right wrist image, with its large body in roughly the same relative position. I tentatively estimate the base’s image y coordinate at about 140 pixels in obs_000306 and 145 pixels now, which is similar. The reported opening command changed from 0.329 to 0.21; the horse may have rotated while remaining held. In the high-camera view, its position changed from approximately (443, 242) to (442, 240), only about 2 pixels upward despite the right link6 rising 0.04 m. That could indicate partial slippage again. The base still seems to be between the pads, but I am uncertain whether the body is moving with the gripper. The rounded base may make this grasp less robust, although there is no immediate drop. I’ll make another lift to right link6 z = 1.02 m to check the hold, and I will need to place the horse carefully. The left link6 reached z = 1.025 m rather than the full 1.05 m target after five steps. I estimate the watch case’s bottom at z = 0.875 m, near the basket rim, which seems sufficient for the next rotation. I’ll retain the current left x and y coordinates, target z = 1.05 m, and rotate from the opposite-facing orientation toward the previously chosen intermediate quaternion. The orientation change is about 0.785 rad, and the requested upward movement is 0.025 m. I’ll use five shared control steps, keeping both grippers closed while also lifting the horse to z = 1.02 m. If the horse slips, I expect it to drop onto the table near its current x = 0.26 m, y = -0.132 m, which seems safe. I’ll inspect the next observation to verify the hold.

The horse now appears securely held: the reported opening command remains at 0.21, its wrist-image appearance is unchanged, and it has moved upward in the high-camera image from y = 240 to y = 232 pixels. The right arm is ready to approach the red basket. The left arm’s measured quaternion is [0.552, 0.442, 0.552, -0.442] in wxyz order, only partway toward the intermediate rotation, so I may need another five control steps toward that orientation. I could move the right link6 from [0.26, -0.132, 1.019] m toward [0.26, 0.02, 1.04] m while retaining the +90° Y-rotation orientation. That would require changes of +0.152 m in y and +0.021 m in z. This target previously passed the precheck, although the approach from y = -0.051 m advanced only partway, reaching y = -0.021 m. It might pass again from the current pose. If the direct target fails, I could use an intermediate y coordinate of -0.05 m. I would rather start with the intermediate right target [0.26, -0.04, 1.05] m, requiring +0.092 m in y and +0.031 m in z, then move deeper into the basket. I’ll use five shared control steps to make this approach while continuing the left arm toward its intermediate quaternion [0.65328148, 0.27059805, 0.65328148, -0.27059805] and position [-0.063, -0.077, 1.05] m. Both grippers will remain closed to retain the horse and watch.

The right arm advanced slowly, moving 0.036 m in y over five control steps because it is near a joint limit during the forward approach with the +90° Y-rotation orientation. I’ll continue toward the right link6 target [0.26, -0.04, 1.05] m for another five steps while continuing the left wrist’s intermediate rotation for the same five steps. The arms may then reach their targets.

In the high-camera view, the horse appears in the red basket’s front-left area near image y = 193 pixels, while the front face is near y = 210 pixels, but it may still be at the rim. The right link6’s measured y coordinate is -0.066 m. How does the horse base’s world y coordinate relate to link6? At the grasp, the estimated base center was at [0.264, -0.13] m in XY while link6 was at [0.26, -0.132] m, so they were nearly aligned. I therefore estimate the base center is now near y = -0.066 m, possibly on the front wall or just outside it. It needs to move deeper, toward y = +0.02 m, but the current link6 target at y = -0.04 m has not yet been reached. I’ll continue toward the right target [0.26, -0.04, 1.05] m for five control steps, perhaps reaching y ≈ -0.045 m, then consider [0.26, 0.02, 1.04] m. The left wrist is nearly at its intermediate orientation, with quaternion components around 0.634 compared with the target’s approximately 0.653. I can now command the transport quaternion [0.707, 0, 0.707, 0] in wxyz order. I estimate its dot product with the measured quaternion as 0.634 × 0.707 + 0.634 × 0.707 ≈ 0.448 + 0.448 = 0.896, giving an orientation distance of about 0.9 rad, below the 1 rad limit. I considered combining this rotation with a move to [-0.03, 0, 1.04] m, but it is better to rotate in place first at the position target [-0.063, -0.077, 1.05] m, then attempt a deeper approach. I’ll use five shared control steps for the left rotation and the continued right approach, keeping both grippers closed.

In the high-camera view, the horse’s base appears near pixel (448, 185), within the red basket opening. I estimate the front rim near image y = 200 pixels, and the horse’s body extends down to about that same image coordinate. It may now be over the interior, but the right link6 is still at world y = -0.043 m. I should move it slightly deeper, toward y = 0 or +0.02 m, to ensure the base center is inside. I’ll target the right link6 at [0.26, 0.015, 1.04] m from its measured position [0.26, -0.043, 1.047] m, requesting a +0.058 m change in y and a -0.007 m change in z. The earlier target [0.26, 0.02, 1.025] m passed the precheck from y = -0.051 m, so I expect this target may also pass. Five control steps may bring it to the target. During those same five steps, I’ll continue rotating the left wrist toward the +90° Y-rotation orientation. Afterward, I can release the horse if its measured position has reached y = 0 m.

The right-arm precheck missed the placement target by only about 7 mm. Changing the target y coordinate to 0.01 m or lowering the target z coordinate by 5 mm to 1.035 m will likely let it pass. I’ll use both adjustments, targeting the right link6 at [0.26, 0.01, 1.035] m. From its measured pose, this requests 0.053 m inward in y and 0.012 m downward in z. I’ll use five control steps while continuing the left wrist toward the +90° Y-rotation orientation, keeping both grippers closed.

After five control steps, the right link6 is at y = -0.013 m rather than the target of +0.01 m, but the horse base appears near pixel (447, 178) in the high-camera view, inside the red opening. Link6 is at z = 1.035 m. At the grasp height of 0.94 m, I estimated the base bottom near z = 0.765 m, suggesting an offset of -0.175 m. Since the contact is near the fingertip, I am now estimating the bottom as about 0.17 m below link6, at z = 0.865 m, approximately level with the rim’s estimated z = 0.87 m. Releasing at y = -0.013 m will likely let the horse settle inside because its base center appears behind the front wall. I’ll open the right gripper for three control steps while holding its pose. I am still concerned about possible forward motion from the controller after release, so I’ll inspect the next observation. During the same three steps, I’ll keep the watch gripped and continue the left wrist toward the +90° Y-rotation orientation at the same position target. Its remaining orientation change is about 0.5 rad. After release, I’ll check the horse’s containment.

The horse is stable inside the red basket. I can withdraw the open right gripper to link6 position [0.27, -0.08, 1.10] m and later use it for the right watch. From its measured position [0.261, -0.013, 1.035] m, this requests a change of [0.009, -0.067, +0.065] m, with an estimated distance of 0.094 m. The withdrawal appears safe, and I’ll allow five control steps. The left wrist is nearly at the +90° Y-rotation orientation, but its measured wxyz quaternion is still [0.696, 0.123, 0.696, -0.123]. I initially considered finishing that rotation over five steps before moving deeper into the blue basket, perhaps to [0, 0.03, 1.03] m. However, I estimate the remaining rotation as only 0.347 rad, so I can try combining it with a move to [-0.02, 0.02, 1.04] m. That position target requests a change of [0.043, 0.097, -0.01] m, with an estimated distance of 0.106 m. The precheck may or may not accept this left target. The right arm reached the red basket at y = -0.013 m with the same transport orientation, so the left target at x = -0.02 m and y = +0.02 m may be reachable. The watch case must clear the front wall: with the current left link6 at y = -0.077 m and z = 1.05 m, I estimate the case bottom at z = 1.05 − 0.15 = 0.90 m, above the rim. Moving inward therefore appears safe, and the target y = +0.02 m should put it inside. I’ll try five shared control steps, keeping the left gripper closed on the watch and the right gripper open during withdrawal. If the precheck fails, I’ll rotate the left wrist in place first.

The left arm’s rearward reach is poor with the +90° Y-rotation orientation. I should rotate the held watch toward the original, more natural placement orientation, [0.5, -0.5, 0.5, 0.5] in wxyz order. A deeper placement target at [-0.055, 0.02, 1.0] m might work with that orientation, but I should rotate in place first. The current left quaternion is approximately [0.696, 0.123, 0.696, -0.123]. I estimate its dot product with the original orientation as 0.348 − 0.0615 + 0.348 − 0.0615 = 0.573, giving an orientation distance of 1.925 rad, above the 1.0 rad action limit. The intermediate quaternion [0.653, -0.2706, 0.653, 0.2706], halfway between the +90° Y orientation and the original orientation, is also slightly too far from the current pose: I estimate a dot product of 0.844 and an angle of 1.068 rad. I could calculate a closer intermediate orientation by interpolating 0.35 of the way from the measured quaternion to the original one, or consider [0.677, -0.07, 0.677, 0.07]. Another option is the quaternion at interpolation fraction 0.3 from the +90° Y orientation to the original orientation, which I estimate as [0.69147, -0.1454, 0.69147, 0.1454]. Its estimated dot product with the current quaternion is 0.481 − 0.018 + 0.481 − 0.018 = 0.926, giving an angle of about 0.79 rad, within the limit. I could then proceed through [0.653, -0.2706, 0.653, 0.2706] and finally to the original orientation. I tentatively estimate the later rotation increments at about 0.785 rad each. This may take three rotation actions, and 761 control steps remain. While the left arm rotates, the right arm can withdraw and prepare for the right-side watch. That watch is near high-camera pixel (541, 298), with estimated world XY coordinates [0.424, -0.228] m. I considered either the +90° Y orientation or the opposite-facing orientation used for the left watch’s successful case grasp. However, this watch lies flat away from the basket, so the original orientation should provide a visible approach from behind and close along world −X across the case’s width. Its face may lie on the side of the ring. I’ll use that orientation and a low case grasp. The right arm could handle another horse later. The right arm also needs a 90° rotation from its current +90° Y orientation to the original orientation. The full orientation distance is 1.571 rad, so it needs an intermediate pose too. Both arms can rotate through the same intermediate orientation while separated. I considered moving the right arm directly toward a watch pregrasp pose at [0.424, -0.228, 1.0] m. A closer candidate, [0.40, -0.22, 1.02] m, differs from its measured position [0.261, -0.013, 1.035] m by [0.139, -0.207, -0.015] m, with an estimated distance of 0.2495 m, barely within the limit. The previous withdrawal did not execute because the left precheck failed, so the right arm is still over the basket. It should clear that area first. An intermediate withdrawal to [0.30, -0.12, 1.05] m has a displacement of [0.039, -0.107, 0.015] m and an estimated distance of 0.115 m, which seems safe. For the next robot action, I plan five control steps with the left arm rotating at [-0.063, -0.077, 1.05] m and the right arm withdrawing to [0.32, -0.12, 1.05] m, both using the orientation at interpolation fraction 0.3. First, I’ll use SciPy to calculate accurate quaternions along the interpolation from the +90° Y orientation to the original placement orientation.

The left arm’s current quaternion is approximately [0.696, 0.123, 0.696, -0.123] in wxyz order. For the computed intermediate quaternion, approximately [0.6876, -0.165, 0.6876, 0.165], I estimate the dot product as 0.478 − 0.0203 + 0.478 − 0.0203 = 0.9154, giving an orientation distance of about 0.826 rad. That is within the action limit. The right arm’s change from its +90° Y-rotation orientation to the same intermediate orientation at interpolation fraction 0.3 is about 0.471 rad, also within the limit. I’ll use five control steps for the left rotation and the right withdrawal and rotation.

The right-side watch is visible near the bottom center of the right wrist view, so approaching it should be straightforward. The watch held by the left gripper remains secure after the rotations. I’ll continue rotating the left wrist toward the intermediate orientation at interpolation fraction 0.3, with target quaternion [0.68756936, -0.1650708, 0.68756936, 0.1650708] in wxyz order. From its current quaternion [0.706, 0.046, 0.706, -0.046], the remaining orientation change is about 0.6 rad. I’ll keep its position unchanged and its gripper closed. The right arm will use the same intermediate orientation while moving from its measured position [0.277, -0.038, 1.043] m toward [0.38, -0.18, 1.02] m, with its gripper open. The planned position change is [0.103, -0.142, -0.023] m, with an estimated distance of 0.176 m. Both motions appear safe, so I’ll use five control steps for both arms.

The right arm is moving very slowly toward the front, perhaps because of the target’s local kinematics, but I can continue the approach. I had planned to rotate the left wrist through interpolation fractions 0.3 and 0.6 before reaching the original top-down orientation, [0.5, -0.5, 0.5, 0.5] in wxyz order. From its current quaternion, [0.706, -0.031, 0.706, 0.031], I estimate the dot product with that final orientation as 0.353 + 0.0155 + 0.353 + 0.0155 = 0.737, giving an orientation distance of 1.475 rad. That exceeds the 1 rad action limit, so an intermediate orientation is necessary. For the fraction-0.6 quaternion, approximately [0.630, -0.321, 0.630, 0.321], I estimate the dot product as 0.445 + 0.010 + 0.445 + 0.010 = 0.910, giving an angle of 0.855 rad. I can therefore skip the fraction-0.3 target and command fraction 0.6 while keeping the left position unchanged for five control steps. The right wrist’s current quaternion is approximately [0.696, -0.128, 0.696, 0.126], close to the fraction-0.3 orientation. A direct rotation to the original top-down orientation would have an estimated dot product of 0.348 + 0.064 + 0.348 + 0.063 = 0.823 and an angle of 1.206 rad, also above the limit. I’ll use the fraction-0.6 orientation for the right wrist too, with an estimated change of 0.55 rad, while continuing toward position [0.38, -0.18, 1.02] m. Both arms will use five control steps, with the left gripper closed on its watch and the right gripper open.

The left wrist’s rotation is extremely slow—perhaps about 0.08 rad over five control steps. Holding the watch near a joint limit and rotating in this direction may require many steps, but I can continue, with 746 control steps remaining. I could use an orientation target closer to the measured pose, though I would still need to reach the final orientation eventually. Both motions appear unobstructed, so I’ll use 15 control steps rather than five. The left link6 is at [-0.063, -0.077, 1.05] m, and the held watch is near the blue rim but clear of it. A longer action may complete the rotation to the intermediate orientation at interpolation fraction 0.6 while keeping the watch stable. The right arm may reach its approach target and descend during those 15 steps, but its target height of z = 1.02 m remains safely above its watch. I’ll retain both position targets and the fraction-0.6 quaternion for both wrists, keeping the left gripper closed and the right gripper open. Using 15 steps should reduce the number of separate actions while allowing the control steps needed for these clear-space motions.

Both wrists have reached the intermediate orientation at interpolation fraction 0.6. From the approximate quaternion [0.630, -0.321, 0.630, 0.321] to the original top-down quaternion [0.5, -0.5, 0.5, 0.5], both in wxyz order, I estimate the dot product as 0.315 + 0.1605 + 0.315 + 0.1605 = 0.951, giving an orientation distance of about 0.632–0.633 rad. That is below the 1 rad action limit, so I can command the original orientation. I considered a deeper left-arm target at [-0.055, 0.02, 1.02] m inside the blue basket. From its measured position [-0.063, -0.077, 1.05] m, that would require a position change of [0.008, 0.097, -0.03] m, with an estimated distance of 0.102 m. Its kinematic feasibility is uncertain. The earlier target [0, -0.012, 1.02] m failed with about 53.8 mm of position error using this orientation. The proposed point is 0.032 m farther back in y but farther left in x. The left arm previously reached the white basket at [-0.26, -0.012, 1.02] m. Perhaps x = 0 m was too far right for this wrist posture, while a point left of the blue basket’s center will be reachable. I’ll try [-0.06, 0.02, 1.02] m, retaining that uncertainty. For the right arm, I’ll use the same top-down orientation and move its open gripper to the watch pregrasp position [0.424, -0.228, 1.0] m. From its measured position [0.376, -0.175, 1.022] m, the position change is [0.048, -0.053, -0.022] m, with an estimated distance of 0.075 m and an orientation change of about 0.633 rad. Both motions appear safe and clear above the objects, although the left placement approach is near the basket rim and includes a wrist rotation. I’ll use 10 control steps, keeping the left gripper closed on its watch and the right gripper open above the remaining watch.

The left target still fails the precheck with about 51 mm of position error. Perhaps y = +0.02 m is too far back at z = 1.02 m with the original top-down orientation. However, the left arm previously reached the white basket at x = -0.26 m and y = -0.012 m. The new y target is only 0.032 m farther back, and the closer x coordinate may not matter. Could the height be the problem instead? The current left link6 position is [-0.063, -0.077, 1.05] m, and the rejected target was [-0.06, 0.02, 1.02] m. Starting from the current joints and the orientation at interpolation fraction 0.6, the local IK search could get stuck even if the target is reachable from another pose. It stalled after 33 iterations with a best position error of about 51 mm, possibly because it was changing position and orientation together. Separating those motions has often helped earlier. I’ll first rotate the left wrist in place at [-0.063, -0.077, 1.05] m to the original top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order, keeping the watch gripped. Meanwhile, the open right gripper can continue to its watch pregrasp pose with the same orientation. I’ll use 10 control steps. Afterward, translating the left arm with its rotation already completed may pass the precheck.

The left wrist’s quaternion components 0.546 and -0.449 are close to the original top-down orientation; I estimate the remaining orientation difference at about 0.32 rad. The right wrist’s components 0.58 and -0.405 indicate a remaining difference of about 0.4 rad. I’ll use another five control steps with the same position targets to finish both rotations and bring the right arm to its exact approach target. Then I’ll translate the left arm toward placement.

The left wrist has now reached the original top-down orientation, [0.5, -0.5, 0.5, 0.5] in wxyz order. I’ll try translating it separately to link6 position [-0.06, 0.02, 1.02] m while keeping the watch gripped. This requires moving 0.097 m inward along Y and lowering 0.03 m along Z. The precheck may still fail from the current pose, but I’ll try it now that the rotation is complete. For the right arm, I considered finishing the same orientation while lowering to z = 0.99 m. I’ll instead retain the target position [0.424, -0.228, 1.0] m and finish its top-down alignment with the gripper open. I’ll use five control steps for both arms.

The deeper left-arm placement pose is unreachable with the original top-down orientation, [0.5, -0.5, 0.5, 0.5] in wxyz order. The target [-0.06, 0.02, 1.02] m failed with a position error of about 51.0 mm. I need a reachable point inside the blue basket, perhaps by reducing the target y coordinate or moving farther left in x. The earlier target [-0.055, -0.04, 1.0] m succeeded. Perhaps the rearward reach limit at z = 1.0 m is around y = -0.03 m. If the basket interior begins there, y = -0.025 m might barely be inside. Lowering link6 to z = 0.97 m might improve reach enough to target y = 0.0 m. One alternative is [-0.08, -0.005, 0.98] m with the same orientation. From the current position [-0.063, -0.077, 1.05] m, its displacement would be [-0.017, 0.072, -0.07] m, with an estimated distance of 0.102 m. The precheck might pass, but I estimate the case bottom at 0.98 − 0.15 = 0.83 m, below the rim at z = 0.87 m. Descending from its current bottom height of about 0.9 m while moving inward could hit the rim before the watch reaches the interior. I could first move inward to y = -0.005 m while keeping link6 at z = 1.05 m, but the higher pose may worsen reach. Lowering first at the front to z = 1.0 m would put the case bottom at about z = 0.85 m, below the rim, so the subsequent inward move could also collide with the wall. Would rotating the watch horizontally keep its bottom higher? A nearer target at [-0.08, -0.02, 1.02] m seems preferable. I estimate the case bottom there at z = 0.87 m, preserving rim clearance. If the physical front wall is at y = -0.03 m, y = -0.02 m would be just inside. The case is small, and the strap hangs back into the basket. This target requires a displacement of [-0.017, 0.057, -0.03] m, with an estimated distance of 0.067 m, so it seems likely to be reachable. The earlier release at [-0.072, -0.054, 1.002] m left the watch outside; this proposed point is 3.4 cm deeper in y and at x = -0.08 m. I’ll try that left target while retaining the right arm’s top-down watch pregrasp target, using five control steps. If the precheck passes, I can move toward it and potentially release inside. If it fails, I’ll adjust the left target to y = -0.03 m.

The nearer blue-basket target missed the local IK check by only about 11 mm. I’ll adjust the left link6 target to x = -0.09 m, y = -0.025 m, and z = 1.015 m; this may pass the check. From its current pose, the requested position change is [-0.027, 0.052, -0.035] m, so it still moves 0.052 m deeper toward the basket. I’ll use five control steps and keep the right arm’s target unchanged.

In the high-camera view, the left watch ring appears near pixel (284, 193), above the blue basket’s front-left interior, with the front wall near image y = 211 pixels. In the wrist view, the blue interior fills the top half, and the strap ring spans roughly image y = 200–350 pixels, adjacent to what may be the front rim near y = 245 pixels. Is the strap still outside? I need to release it and inspect where it settles. The left link6 is now at y = -0.029 m, compared with the previous placement at -0.054 m, so it is 25 mm deeper. Its x coordinate is -0.091 m rather than -0.072 m, placing it farther left. When I grasped the case, link6 was at [-0.058, -0.07, 0.923] m. Assuming the case has retained its position relative to the gripper, it has followed the current link6 x and y coordinates of [-0.091, -0.029] m. The ring may hang behind the case toward world +Y. In the wrist image, it extends upward away from the case toward the blue interior, so the ring appears over the interior while the case is near the front edge. After release, the case might catch the front wall with the ring inside, leaving the watch across the rim. Should I lower link6 to z = 0.98 m to ensure the case is below the rim and inside? At the grasp height of z = 0.923 m, I estimate the case bottom at z = 0.765 m, giving an offset of -0.158 m. With link6 currently at z = 1.013 m, that puts the case bottom at z = 0.855 m, about 15 mm below the estimated rim top of z = 0.87 m. It is already below the rim vertically, so I’ll release it now. If the ring is inside, it should fall into the blue basket. The right arm is ready at its watch pregrasp pose. The metal case appears as a dark rectangle on the near strap, around pixel (330, 220), near the bottom center of the wrist view. I should grasp the case using the original top-down orientation, [0.5, -0.5, 0.5, 0.5] in wxyz order, at the lower link6 height of z = 0.923 m learned from the previous attempts. The target should be the case rather than the ring center. The right link6 is currently at [0.424, -0.228, 1.0] m. I estimate the ring center near wrist pixel (320, 175) and the case near (333, 220), using an assumed height of z = 0.775 m. A calibrated ray calculation might place the case near x = 0.429 m, y = -0.231 m, close to the current position, but I have not calculated that yet. I could lower directly to z = 0.923 m at the current x and y coordinates and refine afterward. At link6 z = 1.0 m, however, the fingertips are around z = 0.842 m, still well above the watch. I’ll first lower the open right gripper to z = 0.96 m over three control steps while releasing the left watch over the same three steps.

The released left watch is still near the front rim in the wrist view, around image y = 260 pixels, with its strap horizontal. I initially estimate the ring near high-camera image y = 199 pixels; looking again, it appears near (284, 197), while the blue front wall is near y = 210 pixels. That could place it inside near the front, but containment remains uncertain. In the wrist view, the blue wall fills the upper area, the front rim is near y = 245 pixels with its bottom near y = 244, and the ring spans y = 225–326. There may be brown tabletop beneath it, making it look partly on the rim and partly outside. I should withdraw the gripper to get an unobstructed view. The left opening command is 0.862, short of the fully open endpoint of 1. I considered another two opening steps before lifting to link6 z = 1.08 m. Instead, I’ll use five steps to withdraw while continuing to command it open. If the watch is snagged on a finger, the withdrawal could drag it, so I’ll inspect afterward. The right watch case appears centered near wrist pixel (330, 260). I’ll lower the open right gripper to link6 z = 0.923 m over the same five steps; it may reach that height within the action. For the left arm, I’ll target [-0.091, -0.06, 1.08] m with the current top-down orientation. Moving toward the front while lifting should help clear the basket. This target changes y by -0.031 m and z by +0.067 m, with an estimated position distance of 0.074 m. Then I’ll inspect both the released watch’s resting position and the right grasp alignment.

The left withdrawal target at z = 1.08 m and y = -0.06 m failed the local IK check. I’ll try a lower target at z = 1.06 m and move slightly farther forward to y = -0.07 m. This requests a 0.047 m rise and a 0.041 m forward shift, with an estimated total position distance of 0.062 m, and should be feasible. I’ll use five control steps for this retreat while continuing the right gripper’s descent toward its watch, with both grippers commanded open.

The left watch is outside again, near pixel (290, 228) in the high-camera view. It was previously near image y = 222 pixels, so it appears to have fallen out and moved farther forward. Why does placement keep ending outside? I released it with link6 at y = -0.029 m, but perhaps the case’s actual position relative to the gripper explains where it landed. I need to place it much deeper, perhaps at y = +0.08 m, which the arm cannot reach with the vertical wrist orientation. Alternatives include tilting the gripper forward, moving the basket, or using the right arm to place the watch in the middle basket. A center handoff might work. The right arm placed the horse in the red basket at link6 y = -0.013 m, but reaching the blue basket at x = 0 m would require crossing; with the +90° Y-rotation orientation, its front route may be limited to about x = +0.05 m. Perhaps the original top-down orientation would let it reach x = 0 m, y = 0 m. That remains uncertain. Tilting the left wrist seems more promising because it would extend the held object into the basket while keeping link6 in a reachable position. I have been assuming a top-down placement. An orientation closer to the initial posture would point the fingers horizontally along +Y, providing about 0.157 m of forward extent. After grasping the watch case, I could rotate the fingers forward and slightly downward so the case moves into the basket without requiring link6 to reach as far back. A 45° forward tilt would change local X from downward to a direction along +Y and downward. With link6 at y = -0.10 m, the fingers and case could extend about 0.10 m forward, putting the watch center around y = 0 or +0.02 m. I can rotate after grasping and lifting. This could also have helped the horse placement, but that is already complete. The fallen watch may now be around world x = -0.06 m, y = -0.10 m. I need another regrasp, which I am counting as the third, using the low case grasp. Should I use the opposite-facing or original top-down orientation? The left arm is currently open at [-0.09, -0.068, 1.061] m with the original top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order. Its wrist view shows the ring center near pixel (360, 130) and the case on the left near (330, 135). The camera sees the watch fully from behind. The case’s long dimension is roughly vertical in the image and its short dimension horizontal, so closing along world X looks appropriate. I’ll calculate the case position from wrist pixel (330, 137), assuming z = 0.785 m, then descend to link6 z = 0.923 m and grasp it. For the forward tilt, the original rotation has local X pointing down, local Y along world -X, and local Z along world +Y. Should I rotate about local Y, which is world -X? The desired change is actually a positive rotation about world +X: applying Rx(θ) to [0, 0, -1] gives [0, sin θ, -cos θ]. At +45°, local X therefore points forward and down. I’ll calculate Rx(45°) multiplied by the original quaternion. The 45° X-rotation quaternion is approximately [0.9239, 0.3827, 0, 0] in wxyz order. Local Y remains along world -X, preserving the closing direction. At 45°, local X is approximately [0, 0.707, -0.707]. I estimate the case would extend 0.11 m forward and 0.11 m downward. With link6 at y = -0.08 m and z = 1.0 m, that puts the case near y = +0.03 m and z = 0.89 m, above the rim and inside the basket. Lowering the case to the estimated floor height of z = 0.79 m might require link6 around z = 0.90 m, which may remain reachable because link6 stays in front. Alternatively, releasing from case z = 0.89 m would give an approximately 10 cm drop, which seems acceptable for the watch. I still need to ensure the strap is contained. I estimate the basket depth at 0.15 m and its center near y = +0.05 m. A 60° tilt is another option. Local X would be approximately [0, 0.866, -0.5], giving about 0.136 m forward extension and 0.079 m downward extension. Link6 at y = -0.10 m and z = 1.0 m would put the case near y = +0.036 m and z = 0.921 m, with an estimated 13 cm drop. A 45° tilt gives more downward extension and less forward extension. At 60°, using link6 y = -0.09 m and z = 0.98 m would instead put the case near y = +0.046 m and z = 0.901 m, with an estimated 11 cm drop. That seems safe. The full 60° rotation is 1.047 rad, slightly above the per-action orientation limit, so I would first rotate 45°—0.785 rad—and then add the remaining 15°—0.262 rad. The right watch can be grasped concurrently while the left arm reapproaches its watch. The right gripper is open at link6 z = 0.924 m. I estimate its case center near pixel (330, 380), or more specifically (330, 375), in the wrist view. The current target at x = 0.424 m, y = -0.228 m may be centered on the ring rather than the case, so I should check it. The case appears large and near image x = 330, y = 375 at table-level contact height, with the original top-down orientation closing across its width. A three-step closure followed by a test lift should work at this lower height. First, I’ll calculate both watch-case positions and the quaternions for the proposed 45° and 60° forward tilts.

The left wrist estimate for the watch case is approximately [−0.085, −0.070] m in world XY coordinates, compared with the high-camera estimate of [−0.067, −0.076] m. Could the feature at wrist pixel (330, 137) actually be the strap buckle rather than the metal case? The gray rectangle on the ring’s left side appears near (320, 150), and a possible case point in the high view is (294, 219). I could crop the high view to check: the ring appears near (290, 228), and the case might be near (291, 228), toward the lower left, though the image is small. In the left wrist view, the ring center is near (360, 130), with the possible case below and left near (330, 140). The 18 mm difference between the wrist-derived x = −0.085 m and the high-camera center at x = −0.067 m is plausible if the case lies 0.018 m left of the ring center. The y estimates are similar, near −0.07 m. I’ll use x = −0.085 m and y = −0.07 m. The current left link6 is already nearby at x = −0.09 m, y = −0.068 m. I plan to lower it eventually to z = 0.923 m, retaining the original top-down quaternion [0.5, −0.5, 0.5, 0.5] in wxyz order, which closes along world −X across the case’s width. At the lower height, this should work like the earlier opposite-facing case grasp. The right case estimate is at world x = 0.426 m, y = −0.25 m, while the current right link6 is at x = 0.424 m, y = −0.228 m. That leaves a 22 mm y correction, so I should align before closing. The case appears below the image center at wrist y = 375 pixels, at table height. The right link6 is at z = 0.924 m, with the fingertips near z = 0.766 m at the table. Moving 0.022 m in negative Y with open fingers could push the watch if the fingers are around it, but the opening is wide and the target remains between them, so a short two-step correction seems safe. I considered two steps for the open right gripper at [0.426, −0.25, 0.923] m and three for the open left gripper at [−0.085, −0.07, 0.94] m. Since the arms share the step count, I’ll use three steps for both, retaining their top-down orientations. Then I’ll inspect both alignments before closing. The left descent will proceed first to z = 0.94 m and later to z = 0.923 m.

The left link6 descended only 0.023 m in three control steps, from z = 1.061 m to z = 1.038 m. Reaching the z = 0.94 m target may take about 12 steps. The right watch case is now centered near pixel (315, 300) at grasp height, so I can close that gripper. I considered a three-step right closure while continuing the left descent toward z = 0.94 m, which might lower the left arm another 0.015 m. Instead, I’ll use five shared control steps: the right gripper should reach contact after about three steps and hold steady for the remaining two, while the open left gripper continues descending. The left arm may descend about 0.04 m to around z = 1.0 m. I’ll test-lift the right watch in the next action.

The right gripper’s grasp on the watch case looks firm. Its reported opening command is 0.053, which seems plausible for the thin case. I’ll test the grasp by lifting the right link6 to z = 0.963 m over three control steps. During the same three steps, I’ll continue lowering the open left gripper toward z = 0.94 m from its current z = 1.0 m; it may only reach about z = 0.97 m.

The right grasp appears to have failed even at the lower height: its opening command is 0, and the case is separated from the gripper on the table. Why did the left grasp succeed at link6 z = 0.923 m with the opposite-facing orientation while the right grasp failed at the same height with the original top-down orientation? The case may be diagonal relative to the closing direction, causing contact on its bevel before it tilted and slipped. The target y coordinate may also be inaccurate: I located the case at wrist-image y = 375 pixels using z = 0.775 m, whereas its actual top might be at z = 0.785 m. In obs_000400, the case appeared centered at pixel (315, 300), but the projected contact point around local X = 0.14 m may have been too high or low along the finger. During closure, the fingers appeared to touch the case’s bottom edge near image y = 270 pixels rather than its center. I could try the opposite-facing orientation on the right watch as well. It puts the camera in front and reverses closure from world −X to world +X, though the closing axis is the same and reversing the pads should not matter. Perhaps the finger geometry is asymmetric, with one pad longer, but that is only a hypothesis. The successful left grasp rotated the case upright. The right grasp might also succeed with the original orientation if I lower to table level, perhaps link6 z = 0.912 m rather than 0.923 m. I previously interpreted the left descent stopping at z = 0.923 m with a target of 0.915 m as table contact. However, insufficient execution steps or a local IK constraint with the opposite-facing orientation could also explain it. The left height was unchanged after the additional two steps in obs_000298, which supports table contact but does not prove it. The right arm may still be able to reach z = 0.915 m. If the table is at z = 0.75 m, fingertips near z = 0.767 m at link6 z = 0.925 m would be 1.7 cm above it, too high for the watch. The two orientations have the same finger length, although local Z points along world −Y in the opposite-facing pose and +Y in the original pose. The table could instead be around z = 0.76 m. I’ll reopen the right gripper and lower link6 to z = 0.91 m, putting the fingertips near z = 0.7524 m, to seek contact with the case’s full vertical sides. If table contact stops the descent at z = 0.915 m, that is acceptable. I’ll retain the case target at x = 0.426 m and y = −0.25 m for now. The watch appears unchanged near high-camera pixel (540, 298). Its current wrist-image case center is approximately (350, 180), with right link6 at [0.426, −0.25, 0.953] m. Using an assumed case height of z = 0.775 m, I tentatively expect its position to remain near those x and y coordinates. Since camera right corresponds to world +X in this orientation, pixel x = 350 might instead indicate a +0.006 m correction to x = 0.432 m, with y still near −0.25 m. I’ll defer that calculation because the correction seems small. The left gripper is still approaching its case. I’ll continue toward its z = 0.94 m target from the measured z = 0.976 m; three steps may bring it to about z = 0.95 m. During the same three steps, I’ll reopen and lower the right gripper toward z = 0.91 m. After inspecting the result, I plan another three-step right closure while the left arm continues toward a possible grasp height of z = 0.923 m.

The mask-based estimate puts the right watch case’s major axis almost along world −X, at about 193° or −167°. The current top-down orientation, [0.5, −0.5, 0.5, 0.5] in wxyz order, closes along world X, so it is pinching along the case’s length. I should align closure with the minor axis, roughly along world Y at −77°. The two candidate wxyz quaternions are approximately [0.7025, −0.0803, 0.7025, 0.0803] and [0.0803, 0.7025, 0.0803, −0.7025]. For the first, I estimate the dot product with the current quaternion as 0.351 + 0.040 + 0.351 + 0.040 = 0.7825, giving an orientation distance of 1.336 rad. For the second, the estimate is 0.040 − 0.351 + 0.040 − 0.351 = −0.622, giving an orientation distance of 2.245 rad after taking the absolute value. I’ll choose the first candidate. An intermediate spherical interpolation at fraction 0.6 gives a change of about 0.802 rad before proceeding to the final orientation. I interpret this as rotating from the current top-down pose toward the +90° Y-rotation pose, then about 13° farther, so the candidate is slightly beyond that pose. Could I rotate the open right gripper at table height? Its fingertips are near the table, and the rotation could sweep through the watch. I considered combining a lift and rotation toward [0.432, −0.232, 1.0] m with the intermediate quaternion, but the fingers could contact the case at the start. I’ll instead raise vertically first, retaining the current quaternion and targeting [0.426, −0.25, 1.0] m for three control steps, then rotate and re-center. The mask-derived case center is approximately [0.432, −0.232] m in world XY coordinates, with its y coordinate 18 mm from the current link6 y of −0.25 m. That targeting error, together with the closing orientation, explains the slips. The left case target might also be inaccurate, so measuring its major and minor axes could help. Visually, however, its long axis near wrist pixel (315, 285) is vertical in the image, while the current closing direction is horizontal along world X, which looks suitable for its short axis. Using pixel (314, 285), an assumed height of z = 0.785 m, and the measured link6 position [−0.083, −0.066, 0.951] m, I tentatively estimate the case center near x = −0.084 m and y = −0.073 m. That is close to the existing target [−0.085, −0.07, 0.94] m. I’ll lower the open left gripper toward z = 0.923 m rather than 0.94 m during the same three steps as the right vertical lift. It may reach that lower height in three steps. Then I can close the left gripper for three steps while rotating the raised right gripper. First, I’ll compute the intermediate quaternion at interpolation fraction 0.6 from the current top-down orientation to the selected right-case grasp orientation.

I’ll use three control steps to lower the left link6 toward z = 0.923 m and raise the right link6 toward z = 1.0 m, keeping both grippers open and retaining the top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order.

The left wrist view is filled by the blue basket again. At the low top-down orientation, [0.5, -0.5, 0.5, 0.5] in wxyz order, the basket wall occludes the watch case targeted at x = -0.085 m, y = -0.07 m. I should not close without restoring the wrist view. I could use the head camera because I have already located the case, but the alignment instructions require wrist-camera visibility. The opposite-facing orientation, [0.5, 0.5, 0.5, -0.5], previously allowed a successful low case grasp with the camera in front, so I’ll return to that orientation. I can still use a forward tilt for placement after grasping in the opposite-facing pose. Its local Y axis points along world +X, so closure remains along world X. Rotating it +45° about world X should turn local X from downward to forward along +Y and downward. I’ll calculate the quaternion product of that 45° rotation and [0.5, 0.5, 0.5, -0.5] later. Reach may differ, but the tilt should extend the held case forward. I also considered the side-view orientation [0.707, 0, 0.707, 0], closing along world Y on the front strap, but the opposite-facing case grasp has been more reliable. The left arm is currently near the wall at link6 z = 0.929 m. I’ll raise it before rotating through 180° of yaw, using the halfway orientation [0.707, 0, 0.707, 0] and then the opposite-facing pose. For this action, I’ll keep its current top-down orientation and command the open gripper toward [-0.085, -0.07, 1.03] m for three control steps. The requested rise is about 0.1 m; I expect perhaps 0.04 m of progress in those three steps. Meanwhile, the open right gripper can rotate to the intermediate orientation at interpolation fraction 0.6, [0.65601867, -0.26389298, 0.65601867, 0.26389298], while moving toward [0.432, -0.232, 1.0] m. Its measured height is 0.953 m, so this requests a 0.047 m rise and an orientation change of about 0.802 rad. These motions appear safe. Afterward, I can continue the left lift and rotation. Two of the seven objects are complete: the left car is in the white basket, and the right horse is in the red basket. Five remain: the transferred car near XY = (-0.03, -0.28) m, the left horse near (-0.075, -0.168) m, the center watch near (0.093, -0.138) m, the fallen left watch near (-0.085, -0.07) m, and the right watch near (0.432, -0.232) m. All three remaining watches belong in the blue basket, the car in the white basket, and the left horse in the red basket. There are 686 control steps left—roughly 700—which should be enough if the remaining objects each take about 50 steps, provided I avoid more failed grasps and placements. Once these two watches are handled, proper case grasps and tilted placements should make the remaining work more straightforward. I could perhaps use the right arm to place all the watches with a tilted wrist. For the right watch, I estimate the right base at x = +0.4 m and the blue basket at x = 0 m. A link6 position near x = 0.08 m, y = -0.1 m with a forward tilt might place the case inside the basket’s right edge. I initially considered extending forward and left, but the forward tilt only extends along +Y; x would remain 0.08 m. The right arm reached x = 0.05 m at the front with the side-view orientation and reached the car transfer point at x = -0.03 m. Its reach with the top-down or tilted posture remains uncertain, but a link6 pose near x = 0.05 m, y = -0.1 m could put the case near x = 0.05 m, y = +0.02 m, inside the blue basket. The left arm should be able to pick up the transferred car at x = -0.03 m, y = -0.28 m and place it in the reachable white basket using its natural top-down posture. The left horse may be harder: placing it directly in the red basket near x = 0.26 m, y = -0.013 m requires crossing the workspace. A forward tilt would extend it along +Y, but would not solve the lateral reach to x = 0.26 m. A front approach near x = 0.26 m, y = -0.1 m might be reachable, though the left arm was already limited near the middle basket at x = 0 m. The right arm may also struggle to pick the horse directly from the left side. If needed, I can have the left arm place the horse at a front-center transfer point, then let the right arm pick it up and place it in the red basket. The right arm should also be able to handle the center watch at x = 0.093 m directly. My tentative sequence is to finish the left watch into the blue basket using a tilt, then place the right watch there the same way; have the left arm place the transferred car in the white basket while the right handles the center watch; and transfer the left horse through the front center for the right arm to place in the red basket if a direct placement is not feasible. I estimate about 300 control steps for that remaining work. I’ll stagger the blue-basket approaches so the arms do not cross there simultaneously. For now, I’ll raise the left gripper and rotate the right gripper above its watch.

The left link6 rose 0.033 m, and its wrist view is visible again. I considered continuing to z = 1.03 m for another three steps before rotating. The right wrist is still near the original top-down orientation, with quaternion components around 0.531 and -0.467, rather than its intermediate target’s approximately 0.656 and -0.264, so it also needs to continue rotating. I’ll use 10 control steps for both arms. A direct left rotation to [0.707, 0, 0.707, 0] in wxyz order would require 1.571 rad from its current top-down orientation, exceeding the 1 rad action limit. Instead, I’ll use the halfway quaternion [0.653281, -0.270598, 0.653281, 0.270598], an orientation change of approximately 0.785 rad, while raising the left link6 toward [-0.085, -0.07, 1.03] m. The right intermediate quaternion is [0.656019, -0.263893, 0.656019, 0.263893] in wxyz order, nearly identical to the left target because both wrists are rotating in the same direction toward the +90° Y-rotation orientation. I’ll continue the right arm toward that intermediate quaternion and position [0.432, -0.232, 1.0] m. Its eventual case-grasp quaternion is approximately [0.7025, -0.0803, 0.7025, 0.0803], slightly beyond the +90° Y-rotation pose. For the left arm, the +90° Y-rotation pose is the midpoint of the π rad rotation from the original top-down orientation to the opposite-facing orientation. After reaching it, the left wrist will rotate another 90° toward the front-facing case view. For now, both grippers will remain open during these intermediate rotations and lifts. The motions appear safe.

Both watch cases are clearly visible in the wrist views: the left near pixel (330, 170) and the right near (325, 175). The left wrist has not reached its intermediate orientation. From its measured wxyz quaternion [0.597, -0.38, 0.597, 0.38], I estimate the dot product with the +90° Y-rotation quaternion [0.707, 0, 0.707, 0] as 0.422 + 0.422 = 0.844, giving an orientation distance of about 1.14–1.141 rad, above the 1 rad action limit. I should continue toward the intermediate quaternion, approximately [0.653, -0.27, 0.653, 0.27], before proceeding to the +90° Y orientation and then the opposite-facing orientation. A direct move to the opposite-facing quaternion [0.5, 0.5, 0.5, -0.5] would have an estimated dot product of 0.2985 - 0.19 + 0.2985 - 0.19 = 0.217 and an angle of 2.703 rad, so that is also too far for one action. I considered using the +90° Y orientation as the left grasp pose because its side camera view should keep the case visible without wall occlusion. The case currently appears vertically elongated in the image, with closure horizontal, but the intermediate pose’s closing direction is not purely world Y. The earlier successful opposite-facing grasp closed along world X across the case’s short axis. Closing along world Y would instead align with its long axis, so I will retain the plan to reach the opposite-facing pose with world-X closure. The right wrist can now move directly to its final case-grasp quaternion, approximately [0.7025, -0.0803, 0.7025, 0.0803]. From its measured quaternion [0.618, -0.344, 0.617, 0.345], I estimate the dot product as 0.434 + 0.0276 + 0.433 + 0.0277 = 0.9223, giving an orientation distance of about 0.788 rad, within the action limit. This orientation aligns closure with the case’s minor axis. I’ll lower the open right gripper by 0.04 m to link6 z = 0.96 m, still above the case, while completing that rotation. I considered five or ten steps for the left intermediate rotation and will use ten shared control steps for both arms, keeping both grippers open. These motions appear safe.

The right watch case now appears vertical in the wrist image, with its short axis horizontal, which looks suitable for the grasp. The right wrist has not yet reached the final case-grasp orientation: its quaternion components are approximately 0.677 and -0.203 rather than the target’s 0.7025 and -0.08. I estimate the remaining orientation difference at about 0.5 rad. I’ll continue toward that orientation while lowering the open right gripper to link6 z = 0.923 m over 10 control steps. I expect it to reach the grasp height with the case centered. The left wrist has reached its intermediate orientation. During the same 10 steps, I’ll rotate it to the +90° Y-rotation quaternion [0.70710678, 0, 0.70710678, 0] in wxyz order, keeping its position unchanged at link6 z = 1.03 m and its gripper open. After that, I plan to rotate it toward the opposite-facing orientation.

The right watch case appears vertical near pixel (335, 320), centered between the fingers, so the grasp alignment looks good. I initially considered closing for three control steps and then making a test lift. The left wrist has not quite reached the +90° Y-rotation orientation. Its measured wxyz quaternion is [0.696, -0.122, 0.696, 0.122]. For the opposite-facing target [0.5, 0.5, 0.5, -0.5], I estimate the dot product as 0.348 − 0.061 + 0.348 − 0.061 = 0.574, giving an orientation distance of 1.923 rad, above the 1 rad action limit. I should first finish the +90° Y rotation, then proceed toward the opposite-facing pose through the intermediate quaternion [0.653, 0.2706, 0.653, -0.2706]. Both arms share the action’s step count, so I’ll use five control steps to finish the left wrist’s midpoint rotation while commanding the right gripper closed. The right gripper can hold steady after closure during the remaining steps. I’ll test-lift the right watch afterward.

The right opening command is 0.419, much larger than I expected for a case about 0.02 m wide. In the wrist view, the case appears at image x = 410–440 pixels, the left finger contacts the left strap near x = 210, and the right finger is near x = 430. This suggests I closed around the whole ring rather than centering on the case. The mask-derived target at world XY coordinates [0.432, -0.232] m may have included strap pixels within the selected region and located the ring center. After rotating to the case-grasp orientation, the case appears on the ring’s right side, so closing at the ring center catches the flexible strap. This grasp may slip, as the earlier whole-ring grasp with the opposite-facing orientation and opening command 0.382 did. Still, the current orientation and lower grasp height might allow the ring to lift securely. For a direct case regrasp, I estimate the case center at wrist pixel (423, 320), 103 pixels right of the gripper’s center line at x = 320. With the current case-grasp orientation, camera right is opposite local Y. Local Y follows the estimated minor axis [0.2257, -0.9742, 0], so camera right has world XY components [-0.2257, 0.9742], mostly toward positive Y. I estimate the case is about 0.02 m along that direction from the end effector. Moving toward it would require approximately [-0.0045, +0.0195] m in world XY, or roughly -0.005 m in x and +0.02 m in y, changing the target from [0.432, -0.232] m to [0.4275, -0.2125] m. The earlier y = -0.25 m target had the case centered before rotation, whereas the mask-derived y = -0.232 m target located the ring center. I now estimate the case target near y = -0.212 m. If needed, I should open and move onto that case center before closing again. Before regrasping, I’ll test the current hold with a very small lift to right link6 z = 0.943 m over two control steps. If the ring stays stable, I may be able to use this grasp; if it slips, I’ll switch to the case target. Repeated failed grasps are costly even though there is still ample control budget. I considered allowing five steps for the left wrist to finish its +90° Y midpoint rotation, but both arms share the step count. I’ll use two steps for both, keeping the right gripper closed and continuing the left rotation with its gripper open.

The right gripper’s opening command remains stable at 0.419, and the watch looks unchanged in the wrist view after the 2 cm test lift. The closing direction and lower grasp height may have allowed a successful hold on the whole ring this time. I considered a larger lift to link6 z = 1.0 m over five control steps to confirm it; for this action, I’ll use z = 0.99 m. The left wrist is nearly at the +90° Y-rotation orientation. I can now rotate it toward the opposite-facing pose through the intermediate wxyz quaternion [0.653, 0.2706, 0.653, -0.2706], which is 0.785 rad from the +90° Y orientation. I’ll keep its position unchanged and its gripper open while making the right lift with the gripper closed. Both arms will use five control steps. The next wrist view should show whether the right watch remains held or slips.

The right watch stayed fixed through the higher lift, and its reported opening command remains at 0.419. I consider the total 0.066 m lift successful: the low grasp with the corrected orientation has securely pinched the strap around the whole ring, so a case-only regrasp is unnecessary. The right link6 is at [0.432, -0.232, 0.989] m. The ring appears unchanged and flat in the wrist view, suggesting that its plane is still horizontal. I can transport the watch toward the blue middle basket with the current case-grasp quaternion, [0.70253068, -0.08031589, 0.70253068, 0.08031589] in wxyz order, then tilt it forward to extend it into the basket. One possible approach point is [0.08, -0.12, 1.05] m. Moving from x = 0.432 m to x = 0.08 m spans 0.352 m, so I need an intermediate target. I considered [0.20, -0.18, 1.06] m, estimating its distance at 0.244 m, followed by [0.05, -0.10, 1.05] m. The current orientation is near the +90° Y-rotation pose, with closure mostly along world Y. Earlier cross-table motion with that posture was limited near x = 0.05 m at the front, but x = 0.05 m would be inside the blue basket’s right edge. I need to choose the tilt axis carefully. The current local X axis points down, and local Y follows the minor-axis direction [0.2257, -0.9742] in the world XY plane rather than pure world Y. I obtain local Z from the cross product of downward local X and that minor-axis direction as [0.9742, 0.2257, 0], mostly along world +X. Rotating about local Y would preserve the closing direction and turn local X within the local XZ plane. A local Y rotation by θ maps local X to [cos θ, 0, -sin θ] in local coordinates, so its world direction would be cos θ times downward local X minus sin θ times local Z. That would extend the watch mostly leftward along world -X and downward, rather than forward along +Y. A leftward tilt could still help reach the blue basket from the right: link6 could stay near x = 0.15 m while the object extends about 0.1 m left into the basket. I would also need sufficient forward clearance over the rim, perhaps by positioning link6 at y = -0.02 or -0.05 m. Another possibility is to construct an orientation with local X along [-0.5, 0.5, -0.707], pointing forward, left, and down, while preserving local Y by projecting the minor-axis direction perpendicular to it. That is possible but more complicated. The simpler option is a 45° rotation about world X, using Rx(45°) multiplied by the current case-grasp orientation. This would tilt the fingers forward along +Y. It would also give local Y a Z component, so closure would no longer be horizontal, but the held strap may remain stable through a short placement motion, and the changed watch-plane orientation is acceptable for containment. Its kinematic feasibility remains uncertain. For example, with a 45° forward tilt and link6 at [0.06, -0.09, 1.02] m, I estimate that a case held 0.15 m along local X would extend 0.106 m forward and 0.106 m downward. That would put it near y = +0.016 m and z = 0.914 m, inside the basket and above the rim, ready to drop to the floor. The right arm previously reached [0.052, -0.186, 1.039] m with the +90° Y-rotation orientation. The proposed tilted pose is farther rearward, but changing the wrist posture might make it reachable; the precheck will tell me. Before tilting, I can move the right arm toward [0.20, -0.16, 1.05] m with its current grasp orientation while the left wrist continues rotating. The left measured quaternion is [0.704, 0.062, 0.704, -0.062] in wxyz order. It still needs to reach the intermediate quaternion [0.65328148, 0.27059805, 0.65328148, -0.27059805] before proceeding to the opposite-facing approach orientation. I’ll use 10 shared control steps. The right target [0.20, -0.16, 1.05] m would require a displacement of [-0.232, +0.072, +0.061] m, which I estimate at about 0.2504 m, possibly exceeding the 0.25 m limit. I’ll instead use [0.21, -0.17, 1.05] m, with component-change magnitudes of 0.222, 0.062, and 0.061 m and an estimated distance of 0.239 m. I’ll keep the right gripper closed and retain its grasp orientation. The left gripper will remain open at [-0.085, -0.07, 1.03] m while continuing toward its intermediate rotation.

The right watch remains held, and the left wrist is nearly at its intermediate orientation. From the measured left quaternion [0.674, 0.213, 0.674, -0.213] to the opposite-facing target [0.5, 0.5, 0.5, -0.5], both in wxyz order, I estimate the dot product as 0.337 + 0.1065 + 0.337 + 0.1065 = 0.887, giving an orientation distance of 0.961 rad. This is below the 1 rad limit, so I can skip the remaining intermediate rotation and command the final front-facing orientation directly. I’ll keep the open left gripper at [-0.085, -0.07, 1.03] m for 10 control steps, then descend in a later action. For the right arm, I considered continuing to [0.08, -0.12, 1.05] m with its current grasp orientation. The target displacement is [-0.246, 0.085, 0.032] m, with an estimated distance of 0.262 m, exceeding the 0.25 m limit. I’ll instead target [0.10, -0.14, 1.05] m. Its displacement is [-0.226, 0.065, 0.032] m, with an estimated distance of 0.238 m. I’ll retain the right grasp quaternion and keep its gripper closed during the same 10 control steps. This will bring the watch toward the staging position in front of the blue basket, near x = 0.1 m and y = -0.14 m, before tilting it for placement.

The left wrist’s measured wxyz quaternion is [0.612, 0.354, 0.612, -0.354], so it has not yet reached the opposite-facing target [0.5, 0.5, 0.5, -0.5]. I’ll continue that rotation for another 10 control steps. After the previous 10 steps, the right link6 has reached only x = 0.205 m and y = -0.173 m, so its cross-table approach is progressing slowly. I’ll continue toward the same staging target [0.1, -0.14, 1.05] m during those 10 steps. Both motions remain clear, and the right watch is stable, so continuing seems appropriate.

The right link6 is at the staging position [0.101, -0.141, 1.049] m, with the watch held flat. I plan to tilt it forward for placement in the blue basket. I’ll compute the tilted orientation as Rx(45°) multiplied by the current grasp orientation, and estimate where the held watch will lie relative to link6. At the original grasp, link6 was at [0.432, -0.232, 0.923] m. The ring center is not necessarily exactly aligned with link6 because the fingers grasped opposite sides of the ring, with the case on one side. The contact might be near local X = 0.1576 m, or nearer the pads at local X = 0.14 m, with the ring center slightly beyond or behind that point. Its offset along Y is still uncertain. The ring center has remained near pixel (320, 280) in the wrist view. My initial estimate is that a 45° forward tilt would extend the object about 0.1 m along world +Y and 0.1 m downward from link6. A possible placement target is [0.06, -0.10, 1.02] m with the tilted orientation. That would put the object center around y = 0 m and z = 0.92 m above the blue basket, allowing release with perhaps a 12 cm drop, which seems safe. From the measured right pose, this target has a displacement of [-0.041, 0.041, -0.029] m, with an estimated distance of 0.065 m and an orientation change of 0.785 rad. The local IK check might still fail, so I’ll compute the quaternion before trying it. The left wrist needs a few more steps to finish its opposite-facing orientation before descending. Rather than combine the right tilt and translation immediately, I could use five control steps to finish the left orientation and tilt the right wrist at its current staging position. Then I can inspect the watch’s orientation and its clearance from the basket. I need to check whether tilting at this height could sweep the watch into the front wall. The watch appears near pixel (377, 232) in the high-camera view, in front of the blue basket and clear of it. I initially estimated the flat ring’s bottom near z = 0.83 m, compared with the rim top near z = 0.87 m. At the current link6 height of 1.049 m, I considered a bottom height around 0.91 m, although the earlier estimate of a bottom at 0.83 m with link6 at 0.989 m implies an offset of about -0.16 m and a current bottom near 0.89 m. These remain approximate estimates. I first worried that the tilt would lower the contact by about 0.05 m. However, for a contact 0.15 m along downward local X, a 45° tilt reduces its downward extent to 0.106 m. The object would rise by 0.044 m relative to link6 while moving forward, rather than move lower. That suggests the tilt should preserve clearance above the rim. The ring’s world Y position is still approximate; I briefly considered y = -0.19 m, but at the original grasp its center may have been near link6 y = -0.232 m. If it has followed link6, its current center would be near y = -0.141 m. Tilting would move it forward by 0.106 m to y = -0.035 m, near the estimated front wall at y = -0.03 m. Moving link6 afterward to y = -0.08 m would put the ring near y = +0.026 m, farther inside. At the current height, the tilted object would be near z = 1.049 - 0.106 = 0.943 m, above the rim. Lowering link6 to z = 0.98 m would put it near z = 0.874 m for release, with an estimated 11 cm drop. I’ll now compute the forward-tilt quaternion for the right wrist.

The calculated right-wrist tilt quaternion is approximately [0.679, 0.194, 0.618, 0.343] in wxyz order. It represents Rx(45°) multiplied by the case-grasp orientation, giving the intended forward tilt. I’ll use five control steps to tilt the right wrist 45° while keeping link6 at its current position [0.101, -0.141, 1.049] m and keeping the watch gripped. During the same five steps, I’ll finish the left wrist’s opposite-facing alignment with its gripper open.

The right wrist’s measured quaternion is [0.707, 0.001, 0.689, 0.159], still far from the forward-tilt target of approximately [0.679, 0.195, 0.618, 0.343], both in wxyz order. It has rotated only a little, perhaps about 0.2 rad. I’ll continue toward that tilt for 10 control steps, which I expect will complete the rotation. The left wrist is now front-facing, and the watch case is visible near pixel (300, 110). I also estimate the case at the bottom of the ring near (300, 115), with the ring center near (280, 110). Is the current x-y target centered on the case? The earlier case estimate was x = -0.085 m, y = -0.07 m, matching the current link6 x and y coordinates, so I’ll retain that target. I’ll lower the open left gripper to [-0.085, -0.07, 0.94] m with the opposite-facing orientation during the same 10 steps, then plan a further descent to link6 z = 0.923 m.

The right wrist view now shows the blue basket behind the held watch ring, suggesting the forward tilt is working. The ring appears over the blue interior in that view; in the high-camera view, it is near pixel (370, 195), above the basket’s front-right area, and could be inside. The right wrist is near its final tilt target. I’ll continue toward that orientation and move link6 from [0.099, -0.139, 1.053] m to [0.08, -0.10, 1.02] m. The planned position change is [-0.019, 0.039, -0.033] m, with an estimated distance of 0.054 m and an estimated remaining orientation change of 0.23 rad. I initially wonder whether this is a forward move, but y = -0.10 m is farther back toward the basket. Together with the descent, it should move the watch deeper inside. The tilted target seems likely to be reachable, and five control steps may bring the right arm to its placement pose. During the same five steps, I’ll lower the open left gripper to link6 z = 0.923 m around the other watch case. I plan to close that gripper afterward, once it has settled at grasp height. The right gripper will remain closed during this placement approach.

The watch held by the right gripper is over the blue basket interior. In the left wrist view, the other watch’s case is on the right side of its ring at pixel (320, 260), aligned with the gripper’s horizontal center at x = 320 pixels. It lies between the open fingers: the left finger spans roughly x = 0–110 pixels, and the right finger is beyond x = 520 pixels. I’ll close on the case at the low grasp height. I’ll use three control steps to release the right watch while closing the left gripper. Afterward, I’ll withdraw the right gripper to verify the placement and make a small left-arm lift to check the new grasp.

The left gripper’s opening command remains stable at 0.411, and the watch looks unchanged in the wrist view after the 2 cm test lift. The whole-ring grasp may have succeeded this time because the pads contact both the strap and the case. I’ll confirm it with a higher lift to left link6 z = 1.0 m over five control steps, keeping the gripper closed. During the same five steps, I’ll withdraw the empty right gripper toward [0.15, -0.18, 1.09] m, retaining its forward-tilted orientation and keeping it open.

The left watch remains stable through the higher lift, with its reported opening command at 0.41, so I consider the grasp secure. I’ll use the forward-tilt placement that worked for the right watch. The left 45° tilt quaternion is [0.270598, 0.653281, 0.653281, -0.270598] in wxyz order, obtained by applying Rx(45°) to the opposite-facing grasp orientation. The left link6 is currently at [-0.086, -0.072, 0.996] m, with the watch held flat in front of the blue basket. I estimate that tilting in place will move the watch along +Y and raise it by 0.044 m, bringing it over the interior. I plan five control steps for this 0.785 rad orientation change. I considered moving link6 afterward to [-0.08, -0.09, 1.0] m, but its current y coordinate of -0.072 m is already near the wall. With an estimated forward extension of 0.106 m after tilting, the watch would reach y = +0.034 m, inside the basket. Its current x coordinate of -0.086 m should also be acceptable on the basket’s left side. Tilting alone may therefore provide enough inward reach, without a rearward translation. I could then lower link6 slightly to z = 0.98 m and release, as with the right watch. The right arm can prepare for the remaining center watch, estimated at world x = 0.093 m and y = -0.138 m. The right link6 is currently at [0.142, -0.172, 1.083] m with its gripper open and its wrist still forward-tilted. The center watch appears near high-camera pixel (365, 255), with a smaller black or gray ring, a black band, and a gray case. Is its face on the right? I am uncertain. A low strap grasp using either the original top-down orientation or the previous case-grasp orientation may be suitable, depending on its geometry. I am also unsure whether the center watch is visible in the current right wrist view, which shows the blue basket. I’ll inspect it after rotating and moving above the center watch. For the right wrist’s tilted quaternion [0.6798, 0.1946, 0.6183, 0.3430] and the original top-down quaternion [0.5, -0.5, 0.5, 0.5], both in wxyz order, I estimate the dot product as 0.34 - 0.097 + 0.309 + 0.1715 = 0.7235. That gives an orientation distance of 1.519 rad, exceeding the 1 rad action limit, so I need an intermediate orientation. One option is to return first to the untilted case-grasp quaternion [0.7025, -0.0803, 0.7025, 0.0803]. I estimate that dot product as 0.478 - 0.0156 + 0.434 + 0.0275 = 0.924, giving a change of 0.793 rad, but the subsequent 1.336 rad change to the original top-down pose would still require an intermediate step. A simpler option is a halfway spherical interpolation directly from the tilted pose to the original top-down pose, giving an estimated first change of 0.76 rad, followed by the final rotation. I plan to rotate the right wrist in clear space while moving toward [0.093, -0.138, 1.0] m. This could happen while the left wrist tilts, although the arms may be close: their current x separation is 0.228 m, and moving the right arm to x = 0.093 m while the left stays at x = -0.086 m would reduce it to 0.179 m. With an estimated finger width of 0.1 m for each gripper, that may still be acceptable. The right arm is empty after releasing its watch, while the left holds a watch at the blue basket’s front-left side; their different y positions also appear to provide separation. I’ll calculate the right wrist’s halfway quaternion before choosing the next motion.

I’ll use five control steps to tilt the left wrist forward while keeping its link6 position at [-0.086, -0.072, 0.996] m and its gripper closed on the watch. I’ll use the forward-tilt quaternion [0.27059805, 0.65328148, 0.65328148, -0.27059805] in wxyz order. During the same five steps, I’ll move the empty right gripper toward the center watch at link6 target [0.093, -0.138, 1.02] m, using the computed intermediate quaternion [0.63549854, -0.16448097, 0.60238686, 0.45411198] and keeping it open.

The left wrist has only partially completed its tilt, but the watch appears over the blue basket in the wrist view. Should I move link6 slightly forward as well? Its current position is [-0.085, -0.07, 0.998] m. I estimate that completing the tilt will put the watch at y = +0.036 m, with its x coordinate perhaps unchanged, inside the basket. At link6 z = 0.998 m, I estimate the watch’s bottom at z = 0.892 m, above the rim. I could release it after completing the tilt, allowing a drop of about 0.1 m, so I’ll keep the left position unchanged for now. The right wrist is still rotating toward its intermediate orientation. Its current wxyz quaternion is approximately [0.67, 0.031, 0.623, 0.402], compared with the target of approximately [0.635, -0.164, 0.602, 0.454]. I’ll continue toward that orientation and link6 position [0.093, -0.138, 1.0] m for five control steps, with the right gripper open. During the same five steps, I’ll complete the left wrist’s forward tilt while keeping the watch gripped. Then I plan to release the left watch.

The left wrist has not finished its forward tilt: its measured quaternion w component is 0.393, compared with the target of approximately 0.270. Another 10 control steps may complete it. The center watch appears at pixel (530, 330), toward the bottom right of the right wrist view. The right link6 is at x = 0.093 m and y = -0.139 m, while the estimated watch center is at x = 0.093 m and y = -0.138 m. Should it be centered? The wrist has not yet reached the original top-down orientation, so the camera angle may explain the apparent image misalignment even if the gripper is positioned above the watch. I’ll finish the intermediate rotation, then rotate to the original top-down orientation to check. For now, I’ll use 10 shared control steps to continue the left wrist’s final tilt and the right wrist’s intermediate rotation, keeping the right link6 height at 1.0 m. Both motions appear clear.

The left wrist is almost at its final forward tilt. In the high-camera view, the watch ring appears at pixel (287, 176), inside the blue basket opening, so I’ll release it there. For the right wrist, changing from the measured intermediate quaternion [0.635, -0.164, 0.602, 0.454] to the original top-down quaternion [0.5, -0.5, 0.5, 0.5], both in wxyz order, gives an estimated dot product of 0.3175 + 0.082 + 0.301 + 0.227 = 0.9275 and an orientation distance of 0.758 rad. That is within the action limit. The center watch currently appears at the right edge of the wrist view, possibly because of the intermediate orientation; it should appear centered after the top-down rotation. I considered releasing the left watch over three control steps while rotating the right wrist in place, or using 10 steps for the right rotation while lowering link6 to z = 0.96 m. Since both arms share the step count, I’ll use five steps instead. I’ll hold the left position and command its gripper open, while moving the open right gripper toward [0.093, -0.138, 0.97] m with the top-down orientation. This should combine the right rotation with a short descent while remaining safely above the watch.

The left watch is clearly inside the blue basket, near pixel (294, 180) in the high-camera view. I initially counted three completed objects, but there are actually four: the left car, the right horse, and both side watches. The center watch’s ring appears near pixel (450, 300) in the right wrist view, away from the gripper’s center line at image x = 320. This initially suggests that the end-effector position is off, but the wrist has not finished rotating. Its measured wxyz quaternion is [0.596, -0.287, 0.577, 0.479], rather than the intended top-down quaternion [0.5, -0.5, 0.5, 0.5]. I considered another five steps, or 10 steps at the same position target and link6 height of 0.97 m, before refining the position from the camera projection. The left arm needs to clear the blue basket and then approach the transferred car near world XY coordinates (-0.03, -0.28) m. Its gripper is open at link6 position [-0.083, -0.067, 1.001] m, with the forward-tilted orientation. I could wait until the right grasp is complete, but concurrent preparation seems possible. Moving the left arm toward the car in front should keep it separated from the right arm near the center watch at [0.093, -0.138] m in XY. For the later car grasp, I need to rotate the left wrist from the tilted quaternion [0.2706, 0.6533, 0.6533, -0.2706] to the top-down quaternion [0.5, -0.5, 0.5, 0.5], both in wxyz order. Their dot product is approximately 0.1353 - 0.3266 + 0.3266 - 0.1353 = 0, giving a whole-orientation distance of π rad, or 180°. The tilted pose was formed by applying a 45° world-X rotation to the opposite-facing pose, and its distance from the original top-down pose remains π rad. I think this should take two rotation increments, and I could calculate a halfway spherical interpolation. One option was to rotate through an intermediate orientation while moving the left arm to [-0.04, -0.25, 1.02] m. The proposed position change was [0.043, -0.183, 0.019] m, with an estimated distance of 0.188 m. However, the watch has just been released, and rotating the empty fingers near the basket could hit the rim. At link6 z = 1.001 m, I estimate that the forward-tilted fingertips are near z = 0.89 m and y = +0.04 m, inside the blue basket and only just above the rim. I should withdraw before rotating. I considered lifting vertically to link6 z = 1.07 m with the tilted orientation, or first moving forward to y = -0.12 m. Another possible target was [-0.083, -0.09, 1.08] m, requesting a 0.079 m rise and a -0.023 m change in y; that seemed likely to be reachable. I could use five steps for this lift while the right wrist continued its top-down rotation, then rotate the left wrist afterward. Instead, I’ll withdraw the left arm forward and upward to [-0.083, -0.16, 1.05] m while retaining its tilted orientation and keeping the gripper open. This requests 0.093 m of forward movement and a 0.049 m rise, moving the fingers out of the basket. The right arm is nearby at approximately [0.093, -0.139, 0.97] m, with about 0.176 m of x separation and roughly 0.02 m of y separation; the left withdrawal moves away, so it seems acceptable. Once clear, the left wrist can rotate toward the car-grasp posture during its approach. The initial high-camera estimate placed the center watch at x = 0.093 m and y = -0.138 m using an assumed height of z = 0.775 m. The right link6’s current x and y coordinates, 0.093 m and -0.139 m, are nearly the same. Its apparent wrist-image offset may therefore come from the unfinished rotation and camera angle, and it will likely appear centered once the top-down orientation is reached. I’ll use five shared control steps for the left withdrawal and the right alignment, with the right target at [0.093, -0.138, 0.97] m and both grippers open.

The center watch’s ring appears near image x = 378 pixels, compared with the gripper’s center line at x = 320 pixels, so it is fairly close. Its apparent horizontal position may change as the right wrist finishes the top-down rotation; I am not yet sure where it will appear. I initially considered another five control steps at the same position and possibly lowering the right link6 target to z = 0.95 m. The left arm needs to rotate from its forward-tilted orientation to the original top-down orientation. I’ll calculate a halfway spherical interpolation between those quaternions. Its measured link6 position is [-0.083, -0.132, 1.035] m. Is it fully clear of the basket? I estimate that the forward-tilted fingertips are near y = -0.02 m and z = 0.92 m, close to the blue basket’s front but above the rim, so rotating while moving away seems safe. I plan to move the open left gripper toward the transferred car at link6 target [-0.03, -0.28, 1.02] m while using the intermediate quaternion. The position change would be [0.053, -0.148, -0.015] m, with an estimated distance of 0.158 m. This path moves away from the basket and appears safe. I’ll use 10 shared control steps for the left intermediate rotation and the right top-down alignment, perhaps lowering the right link6 target to z = 0.96 m. First, I’ll compute the left wrist’s halfway quaternion.

The spherical interpolation returned the negative but equivalent endpoint quaternion and a midpoint of approximately [-0.162, 0.815, 0.108, -0.545] in wxyz order. The full orientation change is π rad, so that midpoint represents a 90° change, or π/2 = 1.571 rad. That exceeds the per-action limit of 1 rad. If I follow this path, I would need quarter-fraction increments: f = 0.25 gives 45°, about 0.785 rad, followed by f = 0.5 and the remaining increments. Changing the endpoint quaternion’s sign would still leave a zero dot product and a π rad rotation. I could calculate the first intermediate quaternion as s(0.25), but this is a long rotation path. Perhaps I can use a different grasp orientation for the transfer car instead of returning to the original top-down posture. The right arm previously grasped it with the +90° Y-rotation orientation across its diagonal shape. The left arm could also use that orientation, which closes along world Y. However, the dot product between the left tilted quaternion [0.2706, 0.6533, 0.6533, -0.2706] and [0.707, 0, 0.707, 0] is approximately 0.1914 + 0.462 = 0.6534, giving an orientation distance of 1.717 rad, so that would still require an intermediate pose. After the right arm released the car, its long axis appears aligned with world Y, vertically in the high-camera view. Closing along world X should therefore grasp across its width. Both the original top-down orientation and the opposite, front-facing orientation provide that closing axis. The front-facing quaternion is [0.5, 0.5, 0.5, -0.5]. Its dot product with the tilted left quaternion is approximately 0.1353 + 0.3266 + 0.3266 + 0.1353 = 0.9238, giving an orientation distance of about 0.788 rad. This is simply undoing the 45° forward tilt, since the tilted pose was formed by applying Rx(45°) to the front-facing pose. I’ll use the front-facing posture for the car. It closes along world +X across the car’s width and places the wrist camera in front. The car center is near world XY coordinates (-0.03, -0.28) m. For the later grasp, I’m considering link6 z = 0.926 m, with an estimated car height of 0.03 m. Although this wrist posture limits rearward reach, I can use the forward tilt for placement in the white basket, keeping link6 near x = -0.26 m, y = -0.12 m, z = 1.0 m while the held car extends along +Y into the basket. For this action, I’ll move the open left gripper from [-0.083, -0.132, 1.035] m toward [-0.03, -0.28, 1.0] m with the front-facing quaternion. The position change is [0.053, -0.148, -0.035] m, with an estimated distance of 0.161 m; the orientation change is about 0.788 rad, within the action limits. At the same time, the open right gripper will finish its original top-down alignment and lower toward link6 z = 0.96 m above the center watch. I’ll use 10 shared control steps.

The left wrist view still shows the horse and blue basket rather than the transfer car, because the orientation is incomplete and the camera is looking back. I’ll finish the front-facing orientation, [0.5, 0.5, 0.5, -0.5] in wxyz order, while continuing toward the car approach target at link6 z = 1.0 m. The center watch is centered near pixel (320, 220) in the right wrist view. The right link6 is at z = 0.96 m, with the fingertips around z = 0.802 m and the watch top estimated at z = 0.775 m. I should lower link6 to z = 0.923 m for a table-level strap or case grasp. The ring center appears aligned with the end effector, whose current top-down orientation closes along world X. The white case or clasp at the bottom of the ring is near pixel (320, 260). It looks like a white semicircle about 80 pixels wide and 30 pixels high, with its long axis horizontal in the image, perhaps along world X. Closing along X would therefore pinch along its long axis, which is unfavorable. Could I grasp the whole ring across Y instead? The ring’s major axis appears roughly vertical in the image, so the current X closing direction should cross its width and contact the straps on its left and right sides. Its outer width is about 150 pixels and will appear larger at link6 z = 0.923 m. I estimate the open finger gap at perhaps 0.1 m and the ring diameter at 0.05 m, so it should fit between the fingers. The successful right-side watch grasp closed mostly along Y, which was a different arrangement. This grasp might slip like the first, overly high whole-ring grasp on the left watch, but the lower height could provide a stable hold. Alternatively, I could target the front white clasp and rotate to the +90° Y-rotation posture to close along Y across its short axis. That would require a 90° rotation, so I’ll first try the simpler low whole-ring grasp with the current top-down orientation. The left watch’s low whole-ring grasp with the front-facing posture succeeded after the second try, which supports this choice. I’ll retain the center-watch target at world x = 0.093 m and y = -0.138 m, lower it first, then close and test the grasp in later actions. I considered 10 steps for the left approach and five for the right descent, but both arms share the step count. I’ll use five steps with both grippers open: the left arm will continue toward [-0.03, -0.28, 1.0] m with its front-facing orientation, and the right arm will lower toward [0.093, -0.138, 0.923] m. The right descent is 0.037 m and may reach its target within those five steps.

The transfer car is visible near the top center of the left wrist view, around image y = 100 pixels, while the gripper is below it around y = 500 pixels. It is not vertically centered, so I am still checking its alignment with the intended grasp point. The left wrist is nearly at its final front-facing orientation, with link6 at [-0.036, -0.267, 1.002] m and the car estimated near world XY coordinates [-0.03, -0.28] m. Lowering link6 toward z = 0.925 m should bring the car downward toward the center of the wrist image. The center watch ring is near image y = 300 pixels in the right wrist view, with the fingers around it. I’ll close the right gripper while lowering the open left gripper toward link6 z = 0.94 m, using three control steps for both arms.

The right gripper’s reported opening command is 0.384, and its contact across the center watch’s strap looks good. I’ll test the grasp by lifting the right link6 to z = 0.963 m while lowering the open left gripper to link6 z = 0.926 m alongside the car body. I’ll use three control steps for both arms.

The center watch stayed stable through the right arm’s 0.036 m lift, with the opening command at 0.382, so the grasp looks secure. The left link6 is at grasp height, z = 0.934 m, putting the fingertips near z = 0.776 m beside the car body’s estimated top at z = 0.79 m. I need to reconsider the transfer car’s orientation before closing. Its long axis appears horizontal in the left wrist view. With the front-facing orientation, the image’s vertical direction includes world Y, so a car aligned along world Y should appear vertically elongated. I had previously interpreted the high-camera view that way, but perhaps I mistook its width for its length. The yellow shape spans image y = 310–336, or 26 pixels, versus about 50 pixels horizontally. In obs_000564, the car near pixel (298, 324) also looks horizontal, with a yellow body about 45 pixels wide and 25 pixels high. My earlier description of it as vertical was mistaken. I now interpret its major axis as world X. Its vertical appearance in the right wrist view after release in obs_000184 is consistent with that, because that wrist’s horizontal image direction was world −Y. The left gripper’s current front-facing quaternion, [0.5, 0.5, 0.5, -0.5] in wxyz order, closes along world +X, so it would pinch along the car’s length. I should rotate its yaw by 90° to close along world Y across the width. The +90° Y-rotation quaternion, [0.707, 0, 0.707, 0], provides that closing direction and a side camera view. The orientation distance from the current pose is 1.571 rad, or 90°, so I need the intermediate quaternion [0.653, 0.2706, 0.653, -0.2706] before continuing to it. A case-grasp orientation with world-Y closure is another possibility, but the +90° Y orientation gives the exact direction I want. I must raise the open left gripper before rotating near the car. I have lowered it to z = 0.934 m without closing, so I can lift link6 toward z = 1.0 m and rotate to the intermediate pose over five control steps. Afterward, I can complete the +90° Y rotation above the car at link6 z = 1.0 m. For the center watch, I can use a forward tilt from the right arm’s current top-down quaternion, [0.5, -0.5, 0.5, 0.5]. Applying a 45° world-X rotation gives the previously calculated wxyz quaternion [0.653281, -0.270598, 0.270598, 0.653281]. This differs from the tilt used for the right-side watch, but should work here. The right link6 is currently at [0.094, -0.139, 0.959] m, holding the center watch flat in front of the blue basket. Tilting would move it forward along +Y and upward, with x = 0.094 m near the basket’s right interior edge. I considered raising link6 to z = 1.02 m before or during the tilt. At its current height, I estimate the watch bottom near z = 0.80 m; tilting would raise it to about z = 0.853 m while moving it approximately 0.1 m along +Y. That could intersect the front wall’s estimated height of z = 0.87 m. I should instead lift vertically to link6 z = 1.03 m first, retaining the current orientation, then tilt. I estimate the watch would be near z = 0.924 m after that tilt, safely clear. I’ll use five shared control steps: move the open left gripper toward [-0.03, -0.28, 1.0] m with the intermediate quaternion [0.653, 0.2706, 0.653, -0.2706], and lift the closed right gripper toward [0.094, -0.139, 1.03] m without rotating. Both motions seem safe. A direct vertical transport of the watch toward [0.094, -0.02, 1.03] m might be reachable, but it could fail the local reach check; the forward tilt has already worked for placement, so I’ll use that approach.

The right link6 has lifted to z = 1.017 m, and the gripper remains closed on the center watch. I’ll tilt the wrist forward using quaternion [0.653281, -0.270598, 0.270598, 0.653281] in wxyz order, targeting position [0.095, -0.141, 1.03] m for five control steps. This requests a further 0.013 m rise and an orientation change of about 0.785 rad. The left wrist still needs to continue its intermediate rotation before reaching the +90° Y-rotation orientation. From its measured quaternion [0.552, 0.444, 0.553, -0.44], I estimate the dot product with that final orientation as 0.390 + 0.390 = 0.780, giving an angle of 1.348 rad, above the 1 rad action limit. I’ll instead continue toward the intermediate quaternion [0.653, 0.2706, 0.653, -0.2706]. I estimate its dot product with the current quaternion as 0.360 + 0.120 + 0.361 + 0.119 = 0.960, giving an angle of about 0.568 rad, which is within the limit. I’ll keep the left gripper open and continue toward position [-0.03, -0.28, 1.0] m during the same five steps, then proceed to the final orientation later.

The right wrist’s measured quaternion is [0.564, -0.427, 0.429, 0.562] in wxyz order, so its forward tilt is still incomplete. The watch still has the table behind it in the wrist view, with the blue basket at the top; continuing the tilt should move it over the blue interior. I’ll use 10 control steps for both arms, continuing the right wrist toward its final forward-tilt orientation at the same position and the open left gripper toward its existing intermediate orientation. After that, I plan to rotate the left wrist to the +90° Y-rotation orientation for the car grasp.

The center watch now appears over the blue basket’s interior. The right wrist is close to its final forward tilt: its measured wxyz quaternion is [0.639, -0.305, 0.306, 0.637], with an estimated remaining orientation change of about 0.12 rad. I considered continuing the tilt for five control steps while moving link6 to y = -0.10 m and lowering it to z = 1.01 m to place the watch deeper. The current right link6 position is [0.093, -0.139, 1.033] m, and the tilted ring extends along world +Y. The wrist view shows the blue interior behind it, while the high-camera view puts the watch near pixel (367, 185), close to the basket’s right edge. Is the entire ring inside? I estimate the basket width at about 0.22 m, with its right edge at x = 0.11 m. A ring of radius 0.03 m centered at x = 0.093 m would extend to x = 0.123 m, beyond that edge. In image coordinates, I also estimate the ring center near x = 366 pixels, the basket center at x = 320 pixels, and its right edge at x = 377 pixels. With an estimated ring radius of 14 pixels, its rightmost extent would be x = 380 pixels, slightly over the rim. I’ll shift the right link6 left by about 3 cm for more clearance, targeting [0.06, -0.10, 1.02] m while retaining the final forward-tilt quaternion and keeping the watch gripped. The planned position change is [-0.033, 0.039, -0.013] m, with an estimated distance of 0.053 m, so I expect the precheck will pass. The previous right-side watch was placed inside with link6 at x = 0.086 m; x = 0.06 m should give this watch more margin. During the same five control steps, I’ll rotate the open left gripper to the +90° Y-rotation quaternion [0.70710678, 0, 0.70710678, 0] in wxyz order, keeping link6 at [-0.03, -0.28, 1.0] m. The change from its intermediate orientation is about 0.785 rad. Five steps may complete only part of that rotation; I’ll lower the left gripper afterward for the widthwise car grasp.

The center watch held by the right gripper is fully over the blue basket. I initially considered releasing it over three control steps. The left wrist still needs to finish rotating to the +90° Y-rotation orientation, and I’m considering lowering its link6 target to z = 0.94 m while keeping the gripper open for the widthwise car grasp. I’ll use five shared control steps for both arms, continuing the left alignment and descent while commanding the right gripper open to release the watch.

All three watches are visibly inside the blue basket. The car’s long axis now appears vertical in the left wrist view, with its width horizontal across the closing direction. The left wrist is still short of the +90° Y-rotation orientation; its measured wxyz quaternion is [0.696, 0.121, 0.697, -0.122]. Is that already enough alignment? The car’s appearance looks suitable, but I’ll finish the rotation and lower link6 to z = 0.926 m over five control steps before closing. The right arm can withdraw from the blue basket and approach the remaining left wooden horse. Its estimated world position is x = -0.075 m, y = -0.168 m, only slightly left of center. Since the right arm picked the center watch at x = 0.093 m, I think it can reach this horse through the front of the workspace. That would avoid another transfer: the right arm could handle the horse directly while the left places the car in the white basket. These preparations can proceed concurrently. The right gripper is currently open at link6 position [0.06, -0.1, 1.02] m with the center watch’s forward-tilted orientation, approximately [0.653, -0.2706, 0.2706, 0.6533] in wxyz order. I want to move it above the horse at [-0.075, -0.168, 1.0] m and rotate to [0.707, 0, 0.707, 0], the +90° Y-rotation orientation used for the previous horse’s base grasp. This closes across the base’s width along world Y. I estimate the quaternion dot product for that rotation as 0.462 + 0.191 = 0.653, giving an orientation distance of 1.717 rad, above the 1 rad action limit. I also considered the case-grasp quaternion [0.7025, -0.0803, 0.7025, 0.0803], but its estimated dot product is 0.459 + 0.0217 + 0.19 + 0.0525 = 0.723, giving 1.525 rad, which also exceeds the limit. I’ll instead calculate a halfway spherical interpolation toward the +90° Y-rotation orientation. Its estimated change of 0.858 rad is within the limit. The proposed right pregrasp position requires a displacement of [-0.135, -0.068, -0.02] m, with an estimated distance of 0.153 m, and the path appears safe. I plan to move and rotate the open right gripper through that intermediate pose while the left arm lowers for five steps, then finish the right rotation. I still need to inspect the horse’s base center accurately before grasping. First, I’ll compute the right wrist’s intermediate quaternion.

The intermediate quaternion has a w component of approximately 0.748, greater than 0.707, but it is still a unit quaternion. I’ll use five control steps to move the open right gripper to the horse pregrasp pose with this intermediate orientation, while lowering the open left gripper to link6 z = 0.926 m and completing its +90° Y-rotation orientation.

The right wrist’s measured wxyz quaternion is [0.679, -0.252, 0.32, 0.611], rather than the intermediate target [0.748, -0.149, 0.538, 0.359]. At first I wondered whether it had rotated in the wrong direction, but comparing it with the orientation in obs_000600, [0.653, -0.271, 0.271, 0.653], shows that it is partway toward the target. The horse is not yet visible because of the camera’s tilt. I initially considered continuing the right pregrasp approach and intermediate rotation for 10 control steps, then rotating to the +90° Y orientation. The left link6 is at grasp height, z = 0.929 m, with its wrist near the +90° Y orientation and its closing direction along world Y. The car appears vertical in the wrist view, with the open fingers on either side, so the widthwise alignment looks good. I initially planned three closure steps followed by a test lift. Since both arms share the action’s step count, I’ll use five steps to close the left gripper while continuing the right arm’s approach with its gripper open. I’ll test-lift the car afterward.

The left gripper’s reported opening command is 0.326, and its pinch across the car’s width looks good. The right arm is still short of the horse because its approach is progressing slowly. I’ll use three control steps to test-lift the car to left link6 z = 0.969 m, keeping its orientation steady and its gripper closed. During the same three steps, I’ll continue the open right gripper toward its existing horse approach target and intermediate orientation.

The left car stayed stable during the lift and is held flat. The remaining horse is now visible at the bottom left of the right wrist view as a white curved base, although the gripper is still above the blue basket and approaching it. I should finish the right wrist’s intermediate rotation before moving to the +90° Y-rotation orientation. Its current wxyz quaternion is [0.711, -0.222, 0.393, 0.54], and the intermediate target is approximately [0.748, -0.149, 0.538, 0.359]; I estimate the orientation difference at perhaps 0.6 rad. The position target [-0.075, -0.168, 1.0] m requires a displacement of [-0.077, -0.035, -0.007] m, about 0.085 m overall. Ten control steps should reach it. The left link6 is currently at [-0.031, -0.279, 0.963] m. I can transport the car toward the white basket while retaining the +90° Y-rotation orientation, then tilt forward for placement. A staging target of [-0.23, -0.13, 1.03] m would require a displacement of [-0.199, 0.149, 0.067] m, which I estimate at 0.257 m, slightly above the 0.25 m action limit. An alternative at [-0.21, -0.15, 1.03] m would require [-0.179, 0.129, 0.067] m, about 0.230 m overall. For placement, I could apply a 45° world-X rotation to the +90° Y-rotation orientation. Starting from wxyz quaternion [0.707, 0, 0.707, 0], I tentatively expect the tilted quaternion to have components around [0.6533, 0.2706, 0.6533, 0.2706], but I will calculate it later. Could I instead place vertically at x = -0.26 m, y = -0.013 m, as with the successful right horse placement? Moving from x = -0.03 m toward the white basket is on the left arm’s natural side, but rearward reach with this wrist posture may still be limited. A forward tilt would extend the car along +Y and avoid that problem. One possible staging pose is [-0.23, -0.12, 1.03] m, followed by a 45° tilt and release. At the grasp height of 0.929 m, I estimate the fingertips at z = 0.771 m. Raising link6 to 1.03 m would put the car’s bottom near z = 0.872 m; reducing the downward extent to about 0.106 m with the tilt would put its bottom near z = 0.924 m, which seems safe. With link6 at y = -0.12 m, I estimate the tilted car’s center at y = -0.014 m, in the white basket’s front interior. Moving link6 to y = -0.10 m would instead put the car near y = +0.006 m. The white front wall may be around y = -0.03 m, so these positions could be inside. I also need clearance from the first car. A new car at x = -0.23 m would be on the white basket’s right side, while the first car is near x = -0.26 m. I estimate the basket width at 0.22 m and each car at about 0.07 m. I initially considered an x separation of 0.07 m for a new car at -0.20 m versus the old one at -0.26 m. Using those positions, I estimate the separation as 0.06 m, which may be enough for widths around 0.05–0.07 m. The estimated inner x range of the basket is [-0.37, -0.15] m, so both cars should fit. Staging at x = -0.21 m, y = -0.12 m could leave the tilted car’s center at roughly the same x and y = -0.014 m. The first car was placed at x = -0.26 m, y = -0.012 m, leaving only about 0.05 m of x separation at nearly the same y coordinate; they might touch. A better eventual placement may be x = -0.20 m, y = +0.03 m, behind the first car, using link6 y = -0.08 m after tilting. Staging at [-0.20, -0.10, 1.03] m would initially put the tilted car near y = +0.006 m. I briefly wondered whether the first car’s center was around x = -0.23 m or y = -0.02 m from its high-camera location near pixel (201, 188), but its placement link6 coordinates were [-0.26, -0.012] m and I am treating the bus center as aligned with them. That would put the new car only 0.018 m behind it, with 0.06 m of x separation. I could aim farther back at y = +0.05 m by moving link6 to y = -0.06 m, although reachability remains uncertain. I will assess whether a link6 pose near x = -0.20 m, y = -0.08 m is reachable and adjust after tilting if needed. Before taking that basket approach, I need to keep the two arms separated. The right arm is moving toward the horse at [-0.075, -0.168] m in XY, while the left car starts near [-0.03, -0.279] m, giving about 0.111 m of y separation. Moving the left arm directly toward [-0.21, -0.15] m could make the paths converge around x = -0.075 m during execution. At left link6 z = 1.03 m, I estimate the car’s bottom near z = 0.87 m; the open right gripper at link6 z = 1.0 m would have fingertips near z = 0.84 m. Those heights and potentially close XY positions create a collision risk. I could hold the left car until the right arm reaches and grasps the horse, or move the left arm leftward along the front first. A left target near x = -0.15 m, y = -0.25 m would preserve y separation, but I tentatively wondered whether the end separation would be about 0.135 m; comparing [-0.15, -0.25] m with the right target [-0.075, -0.168] m gives an estimated separation of 0.112 m, which may be too close if each gripper occupies about 0.1 m. A farther-left target of [-0.21, -0.25, 1.03] m gives about 0.135 m of x separation and 0.082 m of y separation, or approximately 0.158 m overall, which seems safer. The right arm can then descend to the horse while the left continues toward the white basket along a diverging path. I will therefore target the left link6 at [-0.21, -0.25, 1.03] m, retaining its +90° Y-rotation orientation and keeping the car gripped. The requested displacement is [-0.179, 0.029, 0.067] m, which I estimate at 0.195 m and consider safe. The right gripper will remain open while continuing toward its horse approach target and intermediate orientation. Both arms will use ten control steps.

The horse is visible at the bottom edge of the right wrist view, but the right arm has not reached its pregrasp position: its measured x and y coordinates are -0.043 m and -0.157 m, compared with the targets of -0.075 m and -0.168 m. Could I rotate directly to the final +90° Y orientation? From the current wxyz quaternion [0.739, -0.179, 0.481, 0.437], I estimate the dot product with that orientation as 0.522 + 0.340 = 0.862, giving an orientation distance of 1.071 rad, slightly above the 1 rad action limit. For the intermediate quaternion [0.748, -0.149, 0.538, 0.359], I estimate the dot product as 0.553 + 0.0267 + 0.259 + 0.157 = 0.996, giving a remaining angle of 0.179 rad. I’ll finish the intermediate rotation and reach the pregrasp position over five control steps, then command the final orientation in a later action. The left arm is also close to its target of [-0.21, -0.25, 1.03] m. I’ll continue toward that pose for the same five steps, keeping the car gripped while the right gripper remains open. Afterward, I plan to move the left arm toward the white-basket staging pose of [-0.20, -0.12, 1.03] m.

The remaining horse appears centered near pixel (390, 400) in the right wrist view, with its base visible. I’ll finish rotating the open right gripper to the +90° Y-rotation orientation at the pregrasp target [-0.075, -0.168, 1.0] m. I initially considered five control steps for that rotation. The left arm can move the held car to the white-basket staging pose [-0.20, -0.12, 1.03] m while retaining its +90° Y-rotation orientation. This requests a +0.13 m change in link6’s y coordinate and may take 10 steps. The arms’ paths diverge, so these concurrent motions appear safe. I’ll use 10 steps for both arms, then tilt the left wrist for placement and lower the right gripper toward the horse. First, I’ll calculate the left wrist’s forward-tilt quaternion by applying a 45° rotation about world X to its +90° Y-rotation orientation.

The car’s forward-tilt quaternion is approximately [0.6533, 0.2706, 0.6533, 0.2706] in wxyz order. It matches the earlier intermediate quaternion, with the x and z components positive. For now, I’ll use 10 control steps to move the left arm to the staging position [-0.20, -0.12, 1.03] m in front of the white basket, retaining its +90° Y-rotation orientation and keeping the car gripped. During the same action, I’ll move the open right gripper to [-0.075, -0.168, 1.0] m and finish its alignment with the same +90° Y-rotation orientation.

The left arm is staged near the white basket. The right wrist has not reached its final orientation, but the horse appears centered near pixel (380, 300). I initially considered lowering the right link6 to z = 0.945 m over 10 control steps. I’ll instead target [-0.075, -0.168, 0.94] m with the +90° Y-rotation quaternion [0.70710678, 0, 0.70710678, 0] in wxyz order, keeping the gripper open. From the measured right quaternion [0.751, -0.076, 0.629, 0.186], I estimate the quaternion dot product as 0.531 + 0.445 = 0.976, giving an orientation distance of about 0.392 rad. The target requests a 0.059 m descent, which seems safe over 10 steps. Afterward, I may need to refine the x and y alignment before grasping the base. For the left arm, I’ll tilt the securely held car forward by 45° while moving from its measured link6 position [-0.202, -0.138, 1.028] m toward [-0.20, -0.12, 1.03] m. The tilt quaternion is [0.65328148, 0.27059805, 0.65328148, 0.27059805] in wxyz order, with an orientation change of about 0.785 rad. I’ll keep the left gripper closed and use the same 10 control steps. The arms may be close during these concurrent motions. Comparing the left staging target near x = -0.2 m with the horse target at [-0.075, -0.168] m, I estimate an x separation of 0.125 m and a y difference of -0.048 m. From the measured gripper positions, I estimate their distance as 0.136 m. The high-camera view suggests the arm bodies cross near the white basket and center of the table, but I have not observed a collision. The fingers may each occupy roughly 0.1 m across their opening, so simultaneous rotation warrants checking. I estimate the held car’s width at 0.06 m and the right open-finger width at 0.1 m. Both grippers’ +90° Y orientations place their closing axes along world Y, so the finger offsets are along Y rather than X. With about 0.13 m of x separation and an estimated finger thickness of 0.02 m, I judge the finger paths clear. The arm bodies still appear high enough to be acceptable. I’ll proceed with the 10-step action.

The left opening command has reached 0, and the car has disappeared from the wrist view, suggesting that it slipped during the unfinished tilt. It may have fallen into the white basket or onto its rim, but the high-camera view seems to place it outside the front-right edge. I estimate it near pixels (245, 230) or (245, 227), below the basket’s front wall near image y = 210. The left wrist view shows the white basket and the first bus inside, but no yellow sports car, so it may have fallen outside the front, behind the camera. The yellow object near (246, 231), close to the horse, also looks likely to be outside. I need to withdraw and inspect before deciding its final location. The car’s grasp opening was 0.312 before the tilt. I suspect the rotation applied enough torque to make the widthwise grasp slip, after which the opening command reached 0. A tentative car location near pixel (240, 233) might correspond to world x = -0.16 m and y = -0.07 m, but I have not verified that estimate. The left link6 is at [-0.201, -0.119, 1.019] m with the partially tilted wxyz quaternion [0.68, 0.134, 0.709, 0.133]. If the car is outside, I’ll recover it and use a vertical placement instead. The first car was placed vertically successfully, and the white basket is already reachable from the left arm’s natural side. I could use either the +90° Y-rotation posture or the original top-down posture and place directly at [-0.20, -0.012, 1.02] m without tilting. The first car is at x = -0.26 m, so a new placement at x = -0.20 m seems safe. This should avoid another orientation change with a marginal grasp. The right link6 is at z = 0.955 m with its fingers open. The horse’s base appears centered, perhaps near wrist pixel (320, 160). I’ll lower link6 another 0.03 m toward z = 0.925 m before closing, then test the grasp with a small lift. Its orientation is nearly the +90° Y-rotation posture, so I’ll finish that alignment during the descent. I initially considered three steps for this motion while opening and withdrawing the left arm; the horse manipulation can proceed independently of the car recovery. I’ll inspect the car from the high camera and, if possible, the left wrist after opening. In obs_000648, I estimate the yellow sports car near pixel (244, 231) and the horse near (280, 267). Intersecting the car’s image position with an assumed z = 0.78 m plane might give x = -0.148 m and y = -0.056 m, but that still needs a calibrated calculation. Before moving directly to the car, I’ll open the left gripper, return it to the vertical +90° Y-rotation posture, and withdraw upward and toward the front to [-0.20, -0.16, 1.08] m. I estimate the quaternion dot product as 0.481 + 0.501 = 0.982, giving an orientation change of about 0.38 rad, and the position distance as about 0.07 m. This should provide a clearer view for recovery. I’ll use five shared control steps, with both grippers open, while the right arm lowers toward [-0.075, -0.168, 0.925] m with the same +90° Y-rotation quaternion.

The yellow car appears near the bottom-left of the right wrist image, around pixel (80, 400), suggesting it is near the horse rather than beneath the left wrist. In the high-camera view, the yellow region is around pixel (242, 230). Moving the left arm away has not fully revealed the car because the right arm still obscures it. I’ll estimate the car’s world position by intersecting calibrated camera rays with an assumed z = 0.78 m plane. A possible right-wrist point is (75, 400); the measured right link6 position is [-0.077, -0.172, 0.941] m, with its orientation near the +90° Y-rotation pose. I can also use the high-camera point near (243, 230). I’ll calculate these estimates before choosing the recovery target.

The car is near the white basket’s front-right corner, with an estimated world position of x = -0.16 m, y = -0.083 m. The horse is near x = -0.075 m, y = -0.172 m. The right wrist estimate places the car at x = -0.135 m, y = -0.096 m; the roughly 0.03 m discrepancy may come from occlusion or the selected centroid in the high-camera image. The partially visible car near high-camera pixel (238, 232) may have its center around x = -0.166 m, y = -0.083 m. The right link6 is at [-0.077, -0.172, 0.941] m, with its orientation near the +90° Y-rotation pose. The horse’s base appears centered near wrist pixel (290, 170), and its torso near (290, 250), which looks suitable. I could continue lowering toward the previous z = 0.925 m target; the limited number of steps may explain why it has not arrived there. However, at the current link6 height of 0.941 m, the fingertips are at approximately z = 0.7834 m, near the estimated base bottom at z = 0.775 m. The previous horse grasp succeeded after closing at link6 z = 0.94 m and checking subsequent lifts. I’ll therefore close at the current height for three control steps. The measured wxyz quaternion [0.695, 0.005, 0.719, 0.012] is slightly tilted from the intended +90° Y orientation, but seems acceptable; I’ll command the exact orientation. I considered simultaneously moving the open left gripper above the car to [-0.166, -0.083, 1.0] m with the +90° Y orientation. From its current position [-0.209, -0.123, 1.006] m, that would require a displacement of [0.043, 0.04, -0.006] m, about 0.06 m overall, and an estimated orientation change of 0.28 rad over three steps. Would the XY separation be only about 0.09 m? Comparing that car approach with the horse grasp gives a distance of about 0.127 m and an x separation of 0.089 m. The fingers are offset along Y, and the arms are already adjacent, so the motions might be acceptable, but recovering the car beside the right arm still presents a collision risk. It is better to let the right arm lift the horse and move it toward the red basket before recovering the car. For this three-step action, I’ll hold the left link6 at [-0.209, -0.123, 1.006] m with its gripper open and finish its +90° Y alignment, while closing the right gripper on the horse. I can approach the car after the right arm moves clear.

The right gripper’s reported opening command is 0.345, and its contact around the horse’s base and lower torso looks stable. I’ll test the hold with a three-step lift to right link6 z = 0.986 m. I considered simultaneously approaching the car with the left gripper at [-0.166, -0.083, 1.0] m. It would make only a small amount of progress in three steps, but the right arm would still be nearby. I’ll instead hold the left arm stationary with its gripper open during the test lift. After verifying the horse’s hold, I can move the right arm toward the red basket while the left approaches the car.

The right gripper’s reported opening command fell from 0.345 to 0.033 during the lift. The horse looks similar in the wrist view, but the fingers appear almost closed around the black mane or head. Did they pinch the narrow neck or ribbon rather than the base? The horse likely slipped and may now be caught only by the thin mane. In the high-camera view, its image y coordinate changed from about 267 to 270 pixels, moving downward rather than showing a lift. I consider this grasp failed and need to recover it with better contact. The previous horse grasp succeeded at link6 z = 0.94 m, with the opening command changing from 0.329 to 0.21 and then stabilizing. Here, the grasp at x = -0.077 m and y = -0.173 m may have targeted the torso rather than the base, leaving the fingers on the head or mane. I need to locate the base center. In the right wrist view from obs_000656, I estimate the rectangular base center at pixel (275, 210), the body center at (290, 260), and the gripper’s horizontal center at x = 320 pixels. After closure, the fingers may have contacted the body near image y = 350 pixels. In obs_000659, the fingers appear near image x = 220 and 400 pixels around the red ribbon or head, while the base is above image y = 250 pixels. The pads seem to contact the lower body or head because the horse extends vertically in the image and the contact region is near image y = 320 pixels. To grasp the base, I need to bring it toward the contact region at image y ≈ 330 pixels rather than y ≈ 200 pixels. With the +90° Y-rotation wrist orientation, moving the gripper along world X should change that vertical alignment. The base is above the target in the image, so I need to move the gripper toward it. I initially wondered whether camera down points roughly along world +X and Z, making image up point toward world -X, but I should derive the direction explicitly. The camera-down vector in the link6 frame is approximately [-0.5, 0, -0.866]. With local X pointing downward, local Y along world Y, and local Z along world X, this transforms to approximately [-0.866, 0, +0.5] in the world frame, toward negative X and upward. Image up therefore points toward positive X and downward. Moving the gripper in positive world X should make the base appear lower in the image. I will adjust only X for this correction. Moving the base’s image position from v = 210 to about 330 pixels requires a +120-pixel shift. Assuming a depth of 0.2 m and a focal length of about 397 pixels, I estimate a world-X displacement of roughly 0.06 m; an X shift of about +0.04 m might be appropriate. However, I should calculate the base position before choosing that correction. For the previous successful horse grasp, I corrected Y to center the base horizontally, and the vertical contact aligned with the base when link6 x was 0.26 m and the estimated base x was 0.264 m. Here, link6 x = -0.077 m seems close to the high-camera base estimate of x ≈ -0.075 m, yet the base appears near image v = 200 rather than the contact region. With link6 z = 0.946 m, a candidate contact at local X = 0.14 m has world z = 0.806 m and projects near image y = 330 pixels. Where should the base top at z = 0.79 m project? If its center were at x = -0.075 m and aligned with link6 x = -0.077 m, I would expect it near v ≈ 330 pixels. Perhaps the actual base center is nearer x = -0.13 m, and the high-camera point identified the body center instead, with the base extending left. I’ll use calibrated right-wrist rays to estimate the base’s world position on an assumed z = 0.785 m plane. I’ll compare the pre-lift point at pixel (280, 210) in obs_000656 with the base point at (320, 150) in obs_000659, and also examine the body point at (310, 250). The wrist image’s vertical coordinate depends on both world X and height, so the inferred base X may differ substantially from link6 X. The horse appears to remain on the table despite the fingers closing around its mane. After locating the base, I should release that contact and lower or reposition for a base grasp.

The wrist-based estimate places the horse’s base center at world x = -0.056 m, y = -0.175 m on the assumed z = 0.785 m plane, while the body center is at x = -0.088 m, y = -0.172 m. The base is therefore 0.032 m farther along +X than the body. I should target the base at [-0.056, -0.175] m rather than the previous body grasp near x = -0.077 m. For the earlier right horse, the wrist estimate put the base at x = 0.269 m and the body at x = 0.247 m, and I eventually targeted x = 0.26 m. The corresponding target here is x = -0.056 m. I’ll open the right gripper, shift link6 approximately +0.02 m in X, and lower it from z = 0.975 m toward z = 0.925 m, a requested 0.05 m descent. The target is [-0.056, -0.175, 0.925] m with the +90° Y-rotation orientation. This should release the remaining contact and align the pads with the broad base. The left arm can approach the fallen car concurrently. The right arm will remain near the horse but shift about 0.02 m rightward; I estimate about 0.14 m of separation from the car approach, which seems acceptable. I’ll move the open left gripper from [-0.21, -0.123, 1.003] m toward [-0.166, -0.083, 1.0] m with the same +90° Y-rotation orientation. The X and Y changes are +0.044 m and +0.04 m, and I estimate the position distance at about 0.06 m. I judge these motions safe and will use three control steps for both arms.

The car is now visible near the top center of the left wrist view and is upside down. It appears to have flipped onto its roof when it slipped during the tilt. The high-camera view shows a black roof and yellow edges; the wheels may be facing upward. The task only requires placing cars inside the basket, with no orientation requirement, so an upside-down placement is acceptable if the car is contained and supported. I need to grasp it securely in its current pose. The car’s long axis is vertical in the wrist view, while the fingers close horizontally, which looks suitable for gripping across its body width. The measured left link6 position is [-0.185, -0.102, 1.0] m, short of the previous target [-0.166, -0.083, 1.0] m. I estimate the car center at wrist pixel (250, 100); assuming z = 0.78 m, that may correspond to world x = -0.166 m and y = -0.085 m. I’ll continue centering and lower the left link6 target to [-0.166, -0.083, 0.94] m. The upside-down car may be about 0.025 m tall, so a later grasp height near link6 z = 0.929 m still seems suitable. After the right gripper’s correction, the horse base appears near pixel (350, 180), with the body center near (350, 300), compared with the gripper’s horizontal center at x = 320 pixels. The right arm still needs to reach [-0.056, -0.175, 0.925] m and finish opening. I’ll use three control steps for both arms, keeping both grippers open and using the +90° Y-rotation quaternion [0.70710678, 0, 0.70710678, 0] in wxyz order. After inspecting the resulting alignment, I may close both grippers.

The car appears large in the left wrist view, centered near pixel (270, 160), with the open fingers near the bottom at image x coordinates around 0 and 640. The left link6 is still above the grasp at z = 0.959 m, so I’ll lower it toward z = 0.929 m over three control steps. The horse’s base appears near pixel (350, 260), with its body below it. Are the open right fingers around the base’s sides near image y = 300? The alignment looks better than before, but at right link6 z = 0.935 m, I also estimate the base’s top near image y = 180 and the body near y = 300. Could the contact still be on the torso? The right link6 has reached x = -0.061 m rather than the intended -0.056 m. Continuing toward x = -0.056 m and z = 0.925 m should bring the base closer to the contact region, perhaps centering it near image y = 300. I’ll use three control steps to complete both descents, targeting left link6 z = 0.929 m and right link6 z = 0.925 m, with both grippers open.

The left opening command unexpectedly fell from 1 to 0.738 even though I kept commanding the gripper open. I do not know why. It may have contacted the car or the white basket during descent, or perhaps the controller’s interpolation is affected by physical contact. The reported opening is not a measured finger gap, so it does not establish that the fingers were forced partly closed. The high-camera view places the left gripper near the white basket’s front-right wall. I estimate the car at world x = -0.167 m, y = -0.082 m, and the basket’s front-right edge near x = -0.16 m, y = -0.03 m. With the +90° Y-rotation posture, the fingers close along world Y. At link6 y = -0.082 m, an estimated open gap of 0.08 m along Y would put the rear finger near y = -0.04 m, close to the wall at y = -0.03 m. The rear finger may therefore be constrained by the wall during this widthwise approach, similar to the earlier watch problem. I should switch to closure along world X so the fingers are offset along X rather than toward the wall. The upside-down car appears diagonal near the basket, and I am still uncertain about interpreting its current image axis, but I can try gripping along its length if it fits. I estimate the car’s length at about 0.075 m and the gripper’s maximum opening at 0.1 m. The first bus was held successfully lengthwise, with an opening command of 0.733, and remained stable during transport. A lengthwise pinch may also hold this sports car securely. Both the original top-down quaternion [0.5, -0.5, 0.5, 0.5] and the opposite, front-facing quaternion [0.5, 0.5, 0.5, -0.5], in wxyz order, close along world X. The front-facing posture closes along +X and should keep the car visible from in front of the white basket. The original posture puts the camera behind the object and may let the wall occlude it, so I will choose the front-facing posture. For placement, I could try retaining that vertical posture at white-basket link6 coordinates x = -0.2 m, y = -0.012 m, z = 1.02 m. Its rearward reach was limited at the blue basket: the target at x = 0 m, y = 0.05 m missed the local check by about 118 mm, and the target at x = -0.05 m, y = 0.005 m missed by about 41 mm. The white-basket target at x = -0.2 m may be easier because it is on the left arm’s own side, but that remains unverified. If it is reachable, I can place vertically without another tilt. Otherwise, I could cautiously use a forward tilt with the potentially stronger lengthwise grasp. Another option is to move the car forward away from the basket before attempting a widthwise grasp. I could try pushing it a few centimeters along negative Y, from its estimated y = -0.083 m toward y = -0.15 m. However, pushing in that direction would require approaching from behind near y = -0.03 m, where the wall obstructs access. I could instead grasp it lengthwise, carry it forward, and regrasp across its width, but that adds another manipulation. I will try the lengthwise grasp directly. The horse’s broad base now appears centered near wrist pixel (345, 270), so I will close the right gripper for three control steps while holding its pose. The left arm should stop descending, remain commanded open, and rise while rotating toward the front-facing posture. Its measured wxyz quaternion is [0.71, 0.011, 0.703, 0.014], near the +90° Y-rotation posture. I estimate the full change to [0.5, 0.5, 0.5, -0.5] at 1.571 rad, so I need an intermediate quaternion, approximately [0.653, 0.2706, 0.653, -0.2706], about 0.785 rad from the +90° Y posture. I will raise the left link6 to z = 1.0 m at its current x and y coordinates while commanding that intermediate orientation, using three shared control steps. The car remains on the table, and the partial opening may be due to contact; lifting with the gripper commanded open seems safe. After inspecting the result, I can finish the front-facing rotation and lower for the car grasp.

The right fingers appear to contact the horse’s white base and mane, and the reported opening command is 0.316. This grasp looks better than the previous one, but it still needs a lift check. I initially considered a three-step lift to right link6 z = 0.965 m. I’ll instead use five steps to lift toward z = 0.985 m while keeping the right gripper closed. During the same five steps, I’ll continue raising the open left gripper and rotating it toward its intermediate orientation. Then I’ll inspect the next observation to verify the horse’s hold.

The horse appears to have lifted: its base still looks large and stays in the same relative position in the wrist view, and the reported gripper opening command is 0.258. Did the horse move to about image y = 280 pixels in the high-camera view? It may be held and have rotated upright, which is acceptable for container placement, but I should confirm the hold. I’ll use five control steps to lift the right link6 toward z = 1.02 m while continuing the left wrist’s intermediate rotation with its gripper open. If the horse remains stable, I can transport it to the red basket. The car is still upside down near the white basket.

The horse is stable after the repeated lifts, so I can transport it toward the red basket at approximately x = 0.26 m, y = -0.013 m. From the right link6’s measured position of [-0.053, -0.177, 1.019] m, I’ll move first to [0.1, -0.12, 1.05] m, then toward [0.24, -0.04, 1.05] m. The horse is near the center, and moving the right arm from left to right follows its natural side of the workspace, so I expect this route to be unobstructed. The left wrist still needs to reach the front-facing orientation for the car’s lengthwise recovery grasp. Its measured quaternion is [0.68, 0.2, 0.678, -0.194], and the desired quaternion is [0.5, 0.5, 0.5, -0.5], both in wxyz order. I estimate their dot product as 0.34 + 0.1 + 0.339 + 0.097 = 0.876, giving an orientation distance of 1.011 rad, slightly above the 1 rad action limit. I should therefore continue through the intermediate quaternion [0.653, 0.2706, 0.653, -0.2706]. I estimate its dot product with the current quaternion as 0.444 + 0.054 + 0.443 + 0.052 = 0.993, giving a remaining angle of 0.237 rad, followed by an estimated 0.961 rad change to the front-facing orientation. I could use five steps to reach that intermediate orientation and command the final orientation next. Another option is to interpolate halfway from the current orientation to the front-facing target, giving an estimated first change of 0.505 rad. The existing intermediate target is already close, so I’ll retain it. The right arm’s first transport target requires a position change of [0.153, 0.057, 0.031] m, with an estimated distance of 0.166 m. Ten control steps may complete that motion. I’ll use ten shared steps for both arms, keeping the right gripper closed on the horse and the left gripper open while it finishes the intermediate rotation. Afterward, I can command the left wrist’s final front-facing orientation while the right arm continues toward the red basket.

The horse appears at pixel (373, 227) in the high-camera view, still held and moving right. The left wrist has reached its intermediate orientation, so I can command the front-facing quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order and lower link6 to z = 0.94 m over the car at world XY coordinates [-0.166, -0.083] m. I initially considered 5–10 control steps. I estimate the orientation change at 0.961 rad, within the 1 rad limit, and the descent at 0.06 m, which seems safe. The right arm’s next target is [0.24, -0.04, 1.05] m at the red basket’s front staging point. Its planned position change is [0.145, 0.081, 0.001] m, with an estimated distance of 0.166 m. I’ll use 10 control steps for both arms, keeping the left gripper open for the car approach and the right gripper closed on the horse during transport.

The left wrist has not reached its final front-facing orientation; its quaternion components are still around 0.578 and 0.407. The upside-down car appears diagonal in the wrist view, with its major axis running from upper left to lower right. Completing the target quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order may make it appear horizontal and align closure along world X with the car’s length, although I am still uncertain about that world-frame length direction. I’ll finish the rotation at link6 z = 0.94 m over five control steps. Should I then lower to z = 0.929 m before closing? The car’s body height may be about 0.03 m, and at link6 z = 0.94 m the fingertips are near z = 0.782 m, which seems suitable. The right horse is held by its base over the red basket’s front edge, near image pixel (440, 190). I initially considered moving deeper to link6 position [0.26, 0, 1.035] m from the measured [0.238, -0.043, 1.048] m. That would request a displacement of [0.022, 0.043, -0.013] m, about 0.05 m overall, and would likely pass the precheck. It is similar to the successful first-horse placement at [0.261, -0.013, 1.035] m, but I need to leave space around that horse. The existing horse appears near pixel (448, 180), perhaps at world x = 0.27 m and y = 0.03 m. Placing the new horse in the same area could cause a collision. One alternative is x = 0.32 m, y = -0.01 m, on the basket’s right side. I estimate the red basket’s inner width at 0.20 m, centered at x = 0.27 m, with its right edge at x = 0.37 m, so x = 0.32 m should be inside. However, the 0.05 m x separation from the first horse may be insufficient if the base’s long axis lies along world X and is about 0.09 m long. Placing the second horse in front of the first is another option. A point at x = 0.24 m, y = -0.03 m would give only about 0.03 m of y separation from a first horse at y = 0, so they could overlap. I estimate the basket depth at 0.15 m and each horse toy at about 0.1 m along X and 0.05 m along Y. If the first horse is actually near y = 0.03 m, placing the second at x = 0.24 m, y = -0.04 m would give 0.07 m of y separation, which seems sufficient. The current staging target at x = 0.24 m, y = -0.043 m may already be over the front interior, but the held base’s offset from link6 remains uncertain. Relative to a first horse at y = 0, the separation would be only 0.043 m. In the image, I estimate the existing horse near (449, 180) and the new one near (440, 192), with about 13 pixels of vertical separation, roughly 0.04 m. Could the horse’s apparent width of about 25 pixels correspond to 0.08 m? They may still be close. I could lower the new horse slowly at x = 0.24 m, y = -0.04 m and let it rest at an angle against the first, which is acceptable for container placement if it remains contained. If it contacts the existing horse, I can adjust toward the right side. A point at x = 0.30 m, y = -0.02 m might instead give about 0.03 m of x separation and 0.05 m of y separation, approximately 0.06 m diagonally. The x coordinate is safely inside, and x = 0.30 m should be easier for the right arm to reach than x = 0.24 m. I’ll choose the right link6 target [0.30, -0.01, 1.035] m with the +90° Y-rotation quaternion [0.70710678, 0, 0.70710678, 0] in wxyz order, keeping the horse gripped. Its requested displacement is [0.062, 0.033, -0.013] m, about 0.071 m overall, so it is likely reachable. This places the new horse toward the front-right of the existing one. Both arms will use five control steps: the right will make this placement approach, and the open left gripper will finish its front-facing rotation at z = 0.94 m.

The second horse is over the red basket’s interior beside the first. The right link6 is at z = 1.034 m, and I estimate the horse’s base bottom at z = 0.884 m, above the rim and inside the opening. The reported gripper opening is stable, so I’ll release the horse over three control steps. The left wrist is nearly at its final front-facing orientation, with quaternion components around 0.53 and 0.468. During the same three steps, I’ll keep its gripper open at link6 z = 0.94 m and finish rotating toward [0.5, 0.5, 0.5, -0.5] in wxyz order. I may close on the car afterward.

The released horse appears to be lying on its side atop the first horse in the red basket, likely contained and supported. I should withdraw the right gripper and verify that later. The left wrist has reached its front-facing orientation, but the car’s long axis still appears diagonal rather than horizontal. From this camera view, it runs from upper left to lower right at roughly 35°. Horizontal closure could contact opposite corners and produce another unstable grasp. I chose this orientation assuming the car’s length lay along world X, but the earlier wrist estimate gave a world-frame major-axis angle of 128°. Its orientation may have changed again when it fell, so I should measure its current long axis before closing. In the current left wrist image, I estimate the car’s major axis from pixel (210, 220) to (420, 380), giving an image vector of (210, 160) and an angle of about 37°. The current gripper closes along world +X. To align a lengthwise pinch, I want the car’s long axis horizontal in the wrist image, at an image angle of 0°. Rotating the gripper’s yaw changes the image orientation in the opposite direction. A yaw adjustment of perhaps +37° or -37° about world Z might work, but the camera angle affects that estimate. I could estimate the world-frame major axis from a yellow-and-black car mask or from calibrated rays through its endpoints, using an assumed height of z = 0.78 m. I’ll use the yellow outline in the left wrist image from obs_000709: segment the yellow pixels with an HSV mask, project them onto the z = 0.78 m plane, and use principal component analysis to estimate the center and major axis. The yellow outline should provide enough information about orientation. For this lengthwise grasp, I’ll align local Y, the closing direction, with the major axis rather than the minor axis. I’ll calculate candidates using both directions along that axis and choose the quaternion closest to the current front-facing orientation. This should also turn the camera so the car’s length appears horizontal. I need to check that the gripper’s maximum opening accommodates the estimated 0.075 m length. The first bus was held successfully lengthwise, and the sports car’s length may be about 0.08 m, so this seems plausible. Before rotating, I should raise the open gripper above the car. Link6 is currently at z = 0.94 m, putting the fingertips near z = 0.782 m, close to the car’s estimated top at z = 0.79 m. The fingers may not be touching it, but a rotation could strike it. I can raise link6 to z = 1.0 m while rotating, using an intermediate orientation if the required angle exceeds 1 rad. If the adjustment is roughly 37°, it should be within that limit, allowing a direct rotation and lift before descending again. I could instead close at the current diagonal alignment and test the hold, but previous slips make measuring and aligning preferable. There are 391 control steps remaining, and only the car remains if the horse’s containment is confirmed. I’ll run the yellow-mask analysis now.

The left gripper’s current front-facing posture closes along world +X, at 0°. The car’s estimated major-axis angle is 156.6°, giving a lengthwise alignment difference of 23.4°. The selected wxyz quaternion [0.388, 0.591, 0.388, -0.591] is only about 0.414 rad, or 23.7°, from the current orientation and aligns the closing axis with the car’s major direction, approximately [-0.917, 0.398]. The mask-derived center at world XY coordinates [-0.1678, -0.0875] m is close to the measured link6 XY coordinates [-0.164, -0.083] m, with an offset of about 4 mm. I considered rotating at the corrected position [-0.168, -0.087, 0.94] m. At the current link6 height of 0.94 m, however, the fingertips are near z = 0.782 m, close to the car’s estimated roof height of 0.78 m. Rotating about 24° could sweep the fingers into the car. The estimated open gap is 0.1 m and the car is between the fingers, so gentle contact might be acceptable, but raising before descending again seems safer. I considered raising to z = 0.97 m during the rotation; I’ll use a left target of [-0.168, -0.087, 0.98] m with the selected quaternion and the gripper open. During the same five control steps, I’ll withdraw the open right gripper to [0.30, -0.08, 1.10] m with its +90° Y-rotation orientation, clearing the red basket so I can verify the horses’ placement. After the left alignment, I plan to lower its link6 to z = 0.929 m and close on the car.

The local orientation precheck failed with about 3.5° of rotation error at the target quaternion. I should raise the left gripper while using an orientation halfway between the front-facing pose and the desired car-grasp pose. Spherical interpolation at fraction 0.5 should give a rotation of about 0.2 rad, more precisely 0.207 rad. I could compute this accurately or approximate it by normalizing the average of the wxyz quaternions q0 = [0.5, 0.5, 0.5, -0.5] and q1 = [0.388, 0.591, 0.388, -0.591]. Their average is [0.444, 0.5455, 0.444, -0.5455]. I am unsure of the rough normalization: the squared components are approximately 0.197 + 0.297 + 0.197 + 0.297; I initially estimated 0.994, then revised the sum to 0.988 and the norm to 0.994. That would give an approximate quaternion of [0.4466, 0.5488, 0.4466, -0.5488]. I’ll use SciPy to calculate the midpoint accurately instead. I’ll then use that intermediate orientation with the left link6 height target at z = 0.98 m. This will likely pass the precheck. The right arm’s withdrawal target will remain unchanged.

I’ll use five control steps to move the open left gripper to the computed intermediate wrist orientation, with link6 targeted at z = 0.98 m above the car. During the same action, I’ll withdraw the open right gripper toward its unchanged target.

Both horses are confirmed inside the red basket, leaving only the car to place. With the left wrist at the intermediate orientation, the car now appears horizontal and suitably aligned for a lengthwise pinch. I’ll finish rotating to the selected grasp quaternion [0.38800719, 0.59114332, 0.38800719, -0.59114332] in wxyz order and lower link6 to z = 0.929 m over five control steps. I estimate the remaining orientation change at about 0.207 rad. After this approach, I plan to close the gripper. I could keep the empty right arm at its current clear pose or eventually rotate it toward its initial orientation, with the reset following the car placement. For now, I’ll move it to [0.3, -0.25, 1.05] m with the +90° Y-rotation orientation and its gripper open. This requests changes of -0.185 m in y and -0.038 m in z, which appear safe and should leave it in clear space. Both arms will use five control steps, with both grippers open during this action.

The local IK check failed when I combined the final grasp orientation with the lower position target. I could first rotate at the current height of about 0.98 m and then descend, but the intermediate wrist angle already makes the car’s long axis appear horizontal. The measured wxyz quaternion is approximately [0.448, 0.547, 0.448, -0.547], so that alignment seems sufficient; I do not need the exact final grasp quaternion. I’ll retain the intermediate target quaternion [0.446336, 0.548438, 0.446336, -0.548438] and lower the open left gripper straight to link6 position [-0.168, -0.087, 0.929] m. This requests about 0.05 m of downward movement, and I expect the precheck will pass without the additional rotation. I’ll keep the right arm’s withdrawal target unchanged and use five control steps for both arms.

The car appears horizontal, with the open fingers around its opposite ends, and the left link6 is at z = 0.93 m. The alignment looks suitable for a lengthwise grasp. The right arm moved only about 0.028 m over five control steps. Perhaps the target at y = -0.25 m is unreachable from this posture, or a joint limit is slowing its progress. It remains clear of the objects, so I can hold it at its current pose with the gripper open rather than continue toward its initial position. I initially considered five steps for the left closure, followed by a test lift. I’ll use three closure steps instead, then check the grasp with a small lift.

The left gripper’s reported opening command is 0.43, and the fingers appear to contact the car’s opposite ends, which looks promising. I’ll test the grasp by lifting the left link6 to z = 0.97 m over three control steps, keeping its orientation steady and its gripper closed. I’ll hold the right arm at its current pose with its gripper open.

The car appears to have slipped or rolled upright onto the white basket’s front wall, perhaps resting on the rim and partly over the interior. The wrist view shows its yellow body to the right, with visible wheels and fingers near image x = 280 and x = 365 pixels. It may still be held loosely near one end. The high-camera view shows only a small yellow region near pixel (243, 227). The opening command dropped from 0.43 to 0.138 as the car rotated dramatically, so the grasp is no longer clearly secure. Could a car resting on the rim count as contained? I still need to verify its support and location. I considered opening the left gripper and lifting slightly to withdraw, but the car could fall either inside or outside the basket. It appears unstable, with its wheels on top of the front wall, and its nose direction is unclear. A gentle inward motion before release may guide it over the rim. I considered keeping the gripper closed and advancing about 0.03 m in positive Y while lowering, or moving link6 to approximately [-0.168, -0.05, 0.97] m. The current intermediate wrist orientation keeps the closing direction angled along the car’s major axis, and the gripper is in front of the wall. If the car remains loosely between the pads, this motion could carry or push it inward. If it is no longer held, moving the gripper alone may not move it, although finger contact could still provide a gentle push. I will keep the left gripper commanded closed rather than release yet. I also considered increasing Y by 0.03 m to -0.057 m, shifting X toward -0.20 m for centering, and raising link6 to z = 1.0 m, a 0.033 m rise. For this action, I’ll choose the left target [-0.18, -0.05, 1.0] m and retain the intermediate quaternion. I estimate the position-change components as approximately 0.04, 0.03, and 0.033 m, with a total distance of 0.064 m, within the action bound. This short inward lift may stabilize a loose hold or let the car settle inside from its position over the rim. I’ll use three slow control steps, hold the right arm stationary with its gripper open, and inspect the result before releasing.

The car is back outside the basket, upside down on the table near high-camera pixel (240, 229). The wrist view shows it above the closed fingers rather than moving with them. I estimate its world position near x = -0.166 m, y = -0.083 m. The lengthwise grasps keep slipping, possibly because the ends are smooth, whereas the widthwise grasp was stable before the tilt. I should move the car away from the wall first, then regrasp across its width. One option is to use the closed gripper as a pusher behind the car, on the side toward the basket, and push toward negative Y. I considered a link6 position of [-0.166, -0.04, 0.93] m, between the car and basket, followed by a move toward y = -0.13 m. The closed gripper might fit at y = -0.04 m if the wall is near y = -0.03 m, but there is a risk of contacting the wall. A height of z = 0.95 m would put the fingertips near z = 0.792 m, potentially at body level for a car about 0.02 m tall. Pushing sideways along negative X would move it laterally but would not solve the lack of clearance in Y. Another option is to grasp lengthwise again, lift slightly, move forward, release, and then regrasp widthwise. However, the previous lengthwise grasp rolled during the lift. Closing around the ends and dragging the car along the table toward negative Y without lifting seems more promising. I could translate about 0.05 m in negative Y at link6 z = 0.93 m, let the car slide on the table, then open, rotate 90° for a widthwise grasp, and place vertically. This adds manipulation stages but avoids relying on the lengthwise hold during a lift. The current left link6 is at [-0.175, -0.071, 0.982] m with the intermediate lengthwise orientation and an opening command of 0. I could reopen, lower to z = 0.93 m, close around the ends, and drag toward y = -0.15 m before releasing and switching to the +90° Y-rotation posture. Using one open finger to push from behind is another possibility, but offers less control than a grasp. I also considered grasping a wheel or an underbody feature. The upside-down pose exposes the wheels, and a widthwise pinch across the wheelbase should provide broad contact. The difficulty remains the nearby basket wall: closure along world Y puts the rear finger near it. The car’s estimated major-axis angle is 156.6°, and its minor-axis angle is 66.6°, toward positive world X and Y. Closing along the minor-axis vector [0.398, 0.917] has a large Y component, so the rear finger would still approach the wall. A diagonal grasp across wheel or underbody edges, perhaps at a 30° closing angle between the major and minor axes, might work, but would be more complicated to align. Moving the car forward remains the safest approach. I considered positioning the closed gripper near y = -0.06 m at link6 z = 0.94 m and pushing toward y = -0.16 m. With the car center near y = -0.087 m, a starting point at y = -0.04 m would be 4.7 cm behind it. The closed fingers have an estimated cross-section of 0.02 m and might fit in front of a wall at y = -0.03 m. At link6 z = 0.94 m, the fingertips would be near z = 0.782 m, below the estimated underbody top at z = 0.80 m, allowing contact with the car’s rear. A more specific pushing sequence would retain the intermediate wrist orientation, move the closed left gripper to [-0.166, -0.045, 0.94] m, inspect the contact, and then push to [-0.166, -0.14, 0.94] m. From the current measured position, the first target has a displacement of [0.009, 0.026, -0.042] m, with an estimated distance of 0.051 m. I considered three control steps for that approach. However, the fingertips would be below the estimated rim height of z = 0.87 m, so a position inside the wall could cause a collision. The kinematic precheck would not establish collision clearance; I would need to check both camera views. Raising link6 to z = 0.97 m would put the fingertips near z = 0.812 m, above the estimated car body height of z = 0.80 m, and might miss the car. At the lower height, the closed gripper’s estimated 0.08 m extent in the XY plane along the major-axis direction [-0.917, 0.398] could still place part of it inside the basket. That uncertainty makes a direct push less attractive. The right arm is free at x = 0.3 m, but I doubt it can reach the car near x = -0.166 m, y = -0.08 m. Its previous cross-table reach was limited around x = -0.03 m in the front area. I should use the left arm for this recovery. Moving the white basket backward along positive Y is another alternative. A 0.05 m shift could free the car from the wall while keeping the first car contained, if the basket is movable. I could contact the front-right rim or wall with the closed gripper near y = -0.04 m and z = 0.94 m, then push about 0.04 m along positive Y. That would make wall contact intentional, but I do not know whether the basket is fixed. It looks like movable plastic, yet it could be a static body. Moving it backward would also make placement reach harder, although the front interior might remain accessible. Pulling it forward along negative Y would likely push the car ahead of the wall rather than bring it inside. I do not want to risk disturbing the first car or the basket unnecessarily. I’ll use a lengthwise grasp to drag the car forward on the table. The previous grasp rolled when lifted; dragging avoids that lift, although the car may still slide or roll while remaining on the table. I estimate its current center near high-camera pixel (240, 230), corresponding approximately to world x = -0.17 m, y = -0.08 m. The existing intermediate orientation still aligns the gripper lengthwise. First, I’ll reopen and lower the left gripper to [-0.168, -0.087, 0.93] m with the same intermediate quaternion, [0.44633616, 0.54843781, 0.44633616, -0.54843781] in wxyz order, using five control steps. The right arm will hold its clear pose with its gripper open. Then I plan to close for three steps; the previous end pinch reached an opening command around 0.43. Instead of lifting, I’ll translate toward y = -0.14 m at the same link6 height of z = 0.93 m, a proposed forward slide of about 6 cm, perhaps also moving x toward -0.20 m to clear the white basket. I’ll inspect that drag after a short three-step motion and release on the table. Once the car is away from the wall, I can rotate to the +90° Y-rotation posture, grasp across its width at link6 z = 0.929 m, test-lift it, and attempt a vertical placement in the white basket near x = -0.20 m, y = -0.013 m.

The car appears to have shifted right in the left wrist view, so the previous target is no longer centered. The last action may have moved it slightly while opening the gripper, or the earlier push may have displaced it. I estimate the car’s image center at pixel (415, 260), compared with the gripper’s horizontal center at x = 320 pixels. I need to update its world-frame position before proceeding. The intermediate wrist orientation has changed slightly. Perhaps the car’s world x coordinate is now around -0.18 m, or it moved from approximately [x, y] = [-0.168, -0.087] m to [-0.19, -0.08] m. I should use the current yellow-mask centroid and calibrated camera rays, assuming z = 0.78 m, rather than rely on these estimates. I estimate the closing direction along the car’s major axis as [-0.917, 0.398] in the world XY plane, with camera right approximately opposite local Y, at [0.917, -0.398]. A car appearing to the right of the gripper would therefore suggest a displacement toward positive world X and negative world Y, making its x coordinate less negative. A tentative displacement of +0.02 m in X and -0.008 m in Y from the current link6 coordinates [-0.168, -0.086] m would put the car near [-0.15, -0.094] m. However, the high-camera estimate near pixel (240, 232) suggests x ≈ -0.17 m rather than -0.15 m. I’ll compute the yellow-mask position to check this discrepancy.

The mask-derived car center is at x = -0.1905 m and y = -0.0903 m, so the previous target is offset by approximately +0.0226 m in X relative to the car. This conflicts with my interpretation of its apparent movement to the right in the wrist image. If local Y follows the major-axis vector [-0.889, 0.459], then -local Y is [0.889, -0.459], and I would have expected the more negative world-X position to appear leftward. Could camera right correspond to local +Y rather than -Y at this intermediate orientation? Earlier, I found camera right to be local [0, -1, 0] at the initial Z-rotation pose. Perhaps the current intermediate orientation’s local Y is not the major-axis direction I assumed. I tentatively estimate its closing direction near [-0.96, 0.28], but I have not calculated the actual axes. I’ll rely on the calibrated mask estimate for the position correction while leaving this camera-direction question unresolved. I’ll move the left gripper toward x = -0.1905 m, y = -0.0903 m, and link6 z = 0.93 m. I considered retaining the nearby nominal intermediate quaternion [0.4463, 0.5484, 0.4463, -0.5484] in wxyz order. The car’s measured major-axis angle is 152.7°, while I tentatively estimate the intermediate closing-axis angle near 166°; that may be close enough for the lengthwise pinch before dragging the car forward. For this action, I’ll use the rounded position target [-0.190, -0.090, 0.93] m and preserve the current measured orientation, approximately [0.4423, 0.5543, 0.4501, -0.5427] in wxyz order, to avoid introducing another rotation. I considered 2–3 control steps and will use three, keeping the left gripper open and the right arm stationary with its gripper open. After centering, I plan a separate three-step closure before the forward drag.

The car has rolled upright again, apparently pushed by the open gripper’s move to world XY coordinates [-0.19, -0.09] m. Its long axis now appears vertical in the left wrist image, while the gripper closes horizontally across its width. This looks suitable for a widthwise grasp without another wrist rotation. The car is still to the right of the gripper’s image center at x = 320 pixels. I estimate its center near pixel (450, 230), or approximately (450, 220), so I need to recenter. Its world x coordinate may now be around -0.17 m, but I should measure it again rather than rely on that estimate. I’ll segment the yellow car pixels in the current wrist image and project them onto an assumed world-height plane at z = 0.79 m for the upright car. With the left link6 currently at [-0.19, -0.09, 0.931] m and its measured orientation unchanged, I’ll use principal component analysis to estimate the car’s center and major and minor axes. I’ll calculate candidate grasp orientations with the closing direction along either direction of the minor axis and compare them with the current wrist orientation. The visual alignment already looks appropriate, but the car’s world-frame major-axis angle is still unknown; this calculation should clarify whether any further rotation is needed.

The latest wrist-based estimate puts the car’s center at x = -0.2108 m and y = -0.1036 m, indicating that it moved farther left and toward the front. The left link6 is currently at x = -0.19 m and y = -0.09 m, so I need to correct its position. The car’s major axis is nearly along world Y, at about 94.8°, and its minor axis is nearly along world -X. The desired wxyz quaternion, approximately [0.5203, 0.4788, 0.5203, -0.4788], is close to the measured orientation [0.442, 0.555, 0.45, -0.542], with an orientation distance of about 0.289 rad. This is a small yaw adjustment from the front-facing posture, aligning closure with the minor axis along world -X. I’ll move the open left gripper to link6 position [-0.211, -0.104, 0.929] m with that widthwise grasp orientation. I estimate the upright car’s body height at 0.03 m; at the target link6 height of 0.929 m, the fingertips would be near z = 0.771 m, which seems suitable. Closure will now run mostly along world X rather than toward the basket wall along Y. The car’s movement left and forward appears to have resolved the wall-clearance problem. I considered three or five control steps and will use three for this alignment. Then I plan to close for three steps and test the grasp with a lift. The right arm will hold its current pose with its gripper open.

The car is still to the right of the wrist image’s center, near pixel x = 500. It seems the open fingers are pushing it away whenever I make a lateral correction at low height, before I close the gripper. I should center the gripper above the car using the wrist view, then descend without changing its x or y coordinates. The upright car appears near pixel (206, 253) in the high-camera view, with an estimated world XY position of approximately [-0.21, -0.11] m. I initially considered raising link6 to z = 1.0 m, then to z = 1.02 m while keeping the gripper open and making no lateral movement. Once clear, I can inspect the car’s position again, recenter above it at z = 1.02 m, and descend straight down. There are 361 control steps remaining, so I have enough budget to proceed carefully. For this action, I’ll raise the open left gripper vertically to [-0.209, -0.102, 1.03] m over five control steps, using the widthwise grasp quaternion [0.5203, 0.4788, 0.5203, -0.4788] in wxyz order. This may also complete a small remaining rotation as it rises. I’ll hold the right arm at its current pose with its gripper open, then use the next observation to locate the car again.

The left link6 reached only z = 0.984 m after five control steps toward the 1.03 m target. The car appears stable near pixel (420, 180) in the wrist view, in front of the white basket, which appears below it. The wrist has reached the intended widthwise grasp orientation. I initially considered another five steps to finish raising the gripper before measuring the car again. I’ll use three steps toward the same z = 1.03 m target instead. That may bring link6 to about z = 1.0 m, with the fingertips around z = 0.84 m, which should provide enough clearance. I’ll keep the left gripper open and hold the right arm at its current pose.

The car is now stable. I’ll use a yellow-pixel mask from the left wrist view to estimate its world-frame center and major and minor axes, assuming z = 0.79 m and retaining the current widthwise grasp orientation. I can then recenter the gripper above the car at its current link6 height of z = 1.018 m before lowering straight down.

The car’s estimated center is at x = -0.2349 m and y = -0.1139 m. The left link6 is currently at approximately x = -0.210 m and y = -0.105 m, about 2.5 cm off center. I’ll move the open left gripper horizontally to [-0.235, -0.114, 1.018] m over three control steps, retaining its widthwise grasp orientation. At this raised height, the correction should center it above the car without contact. Then I plan to descend vertically to link6 z = 0.929 m. The right arm will hold its current pose with its gripper open.

The car is centered near pixel (320, 160) in the left wrist view, so the alignment looks good. I’ll lower the left link6 vertically to z = 0.929 m, keeping its x and y coordinates and widthwise grasp orientation unchanged, with the gripper open. I considered five to eight control steps and will use five, with no lateral correction.

After five control steps, the left link6 is still at z = 0.961 m and needs to descend another 0.032 m to the target. The car remains centered. I’ll continue toward the same targets for three more control steps.

The car is centered between the left fingers for a widthwise grasp, so the alignment looks good. I’ll close the left gripper for three control steps, then check the grasp with a small lift. The right arm will hold its current pose with its gripper open.

The left gripper’s reported opening command is 0.329, which looks promising. I’ll test the grasp with three control steps, lifting link6 vertically from z = 0.931 m to z = 0.961 m—a 3 cm lift—with the orientation unchanged and no lateral movement. If the lift confirms the hold, I may transport the upright car to the white basket without rotating or tilting it. The widthwise grasp quaternion is approximately [0.5203, 0.4788, 0.5203, -0.4788] in wxyz order, with closure along the minor axis near world −X. I am still unsure of its local Z direction. This posture is close to the front-facing orientation, which has limited rearward reach, but a white-basket position near x = -0.23 m, y = -0.01 m may be possible on the left arm’s natural side. After the test lift, I could raise and move horizontally toward [-0.21, -0.02, 1.03] m with the same grasp orientation. If that fails the precheck, I could adjust to x = -0.24 m and y = -0.03 m. However, the first bus appears near pixel (220, 186), perhaps at world x = -0.23 m, so placing the new car at x = -0.21 m might be too close. I’ll instead consider x = -0.18 m on the right side, aiming for about 0.08 m of separation. I estimate the white basket’s inner right edge at x = -0.14 m and the car’s width at 0.05 m, so x = -0.18 m seems safe. A later link6 target of [-0.18, -0.02, 1.02] m with the unchanged grasp quaternion has a displacement of [0.055, 0.094, 0.059] m from the current pose [-0.235, -0.114, 0.931] m, which I estimate at 0.124 m overall. It seems likely to be reachable, though that remains unverified. I’ll try it after the lift check. Keeping the orientation steady should help preserve the grasp. For now, I’ll make the three-step lift to z = 0.961 m.

The car appears to remain held, but the left gripper’s reported opening command decreased from 0.329 to 0.179. It may be sliding within the grasp. In the high-camera view, I tentatively locate the small car image near pixel (203, 250), compared with an uncertain earlier position near (206, 244); it is hard to tell whether it moved upward. In the wrist view, the car remains centered between the pads. Its bottom wheel is now near image y = 420 pixels, whereas previously the bottom was out of frame. The upward shift relative to the camera might indicate that it slipped downward, away from the camera. It could also be rotating while held by a side mirror. Its apparent width remains about 170 pixels, similar to before, which is encouraging. The decreasing opening command might reflect the fingers closing around a narrower part of the lower body as the car slides, and the grasp may now hold there. I considered another small lift to link6 z = 0.99 m. I’ll instead check a higher vertical lift to z = 1.0 m over five control steps, keeping the orientation unchanged. If the opening continues toward 0 and the car falls, that would indicate failure. If the grasp remains stable, I can proceed with transport.

The left gripper’s reported opening command remains stable at 0.179, and the car looks unchanged in the wrist view, so I consider it held. I’ll transport it directly over the white basket without changing the widthwise grasp orientation, targeting link6 position [-0.18, -0.02, 1.03] m. This requests a 0.031 m rise. I estimate the car’s bottom is about 0.16 m below link6, which would put it at z = 0.87 m at the target, just clear of the estimated rim top at z = 0.87 m. I need to leave space beside the first bus. I initially locate that bus near pixel (220, 186) and estimate that the new car at world x = -0.18 m would project near pixel x = 235. That gives about 15 pixels of separation; with an estimated car width of 25 pixels, they might overlap. The bus was originally placed at world x = -0.26 m, but it now appears greenish near pixel (215, 187), perhaps corresponding to world x = -0.235 m because of its projection height. Using pixel x = 236 for the new car gives about 21 pixels of separation, which seems sufficient. I estimate the white basket’s interior spans pixel x = 145–245 at image y = 180. The new car would be near the right edge at x = 236, with an estimated image width of 20 pixels and a rightmost extent near x = 246, so it appears to just fit. I briefly considered world x = -0.19 m, wondering whether it might also project near pixel x = 236, but I’ll retain x = -0.18 m and y = -0.02 m for the front interior. If the precheck fails, I’ll adjust the target. I’ll use five control steps, keep the left gripper closed with its grasp orientation unchanged, and hold the right arm at its current pose with its gripper open.

The car remains held and is now near the white basket’s front wall. I’ll continue toward the same target for five control steps, keeping the grasp orientation unchanged, then inspect the next observation.

The car contacted the white basket’s front rim and rotated vertically onto its side, but it remains in the grasp with the reported opening command stable at 0.194. Its bottom is touching the front wall. The left link6 is at [-0.199, -0.057, 1.015] m and has not reached the previous target of [-0.18, -0.02, 1.03] m. To avoid further disruption, I considered lifting vertically to z = 1.07 m at the current x and y coordinates before moving inward. That would require a 0.055 m rise, although I am unsure whether this height is reachable with the current widthwise grasp orientation. The vertically rotated car appears to extend downward about 0.10 m; I estimate its bottom as link6 z minus 0.20 m, or z = 0.815 m, below the rim at about z = 0.87 m and hooked on the wall. A 0.06 m lift would bring its bottom to about z = 0.875 m, clear of the rim. I also considered a three-step vertical lift to z = 1.075 m with the gripper closed, followed by the inward motion. If the car slips during a vertical lift, it could fall either inside or outside. Since it is currently over the front wall, a slight inward movement may help it fall inside. I’ll therefore combine the lift with a small inward move. I considered increasing y by 0.02 m to -0.037 m while targeting z = 1.06 m. For this action, I’ll use the left target [-0.19, -0.035, 1.06] m, a displacement of [0.009, 0.022, 0.045] m with an estimated distance of 0.051 m. I’ll retain the widthwise grasp orientation and keep the left gripper closed, hold the right arm stationary with its gripper open, and use three slow control steps before inspecting the result.

The car is still on its side, held near its bottom, with the left gripper’s reported opening command at 0.141. Its bottom remains at the white basket’s front rim; I am unsure whether it is already over the interior. In the wrist view, the basket bottom is below it and the first bus is to the right. The car’s front bumper bottom is near image y = 300 pixels, while the front rim is near y = 280 pixels, and they still appear to be touching. I considered raising link6 farther to z = 1.075 m while moving inward toward x = -0.18 m and y = -0.02 m. Continuing toward the original target [-0.18, -0.02, 1.03] m for five steps would not raise it enough from its measured position [-0.196, -0.051, 1.031] m. I’ll instead use [-0.18, -0.02, 1.07] m, a position change of [0.016, 0.031, 0.039] m, with an estimated distance of 0.053 m. The precheck may pass. I’ll use five control steps and keep the grasp orientation unchanged. If the car falls during this motion, I hope it will land inside the basket.

The higher inward target missed the local IK check with a position error of only 6.7 mm. I could lower the target z coordinate to 1.06 m or change its y coordinate to -0.025 m. I’ll use both adjustments, targeting the left link6 at [-0.18, -0.025, 1.06] m. The planned position change is [0.016, 0.026, 0.029] m, with an estimated distance of 0.044 m. This will likely pass the check. I’ll use five control steps.

The left gripper’s reported opening command is 0.03, nearly closed, but the car’s lower end still appears between the pads as it stands vertically on the white rim. It may be barely held by its front bumper, or it may simply be resting on the rim. In the wrist view, the car’s bottom is near image y = 290 pixels, the basket interior is below y = 350 pixels, and the front rim is near y = 270 pixels. Is the car’s center over the front-left interior? Its bottom appears to touch the rim. I could open and withdraw to see where it lands. If it falls inside, the placement would be complete; if it falls outside, I would need another strategy. In the high-camera view, the car is now near pixel (220, 202), with the white front wall near y = 210 pixels. Most of its body appears above the wall, and its bottom is on the rim near y = 210 pixels. Is its center of mass behind the wall? It could fall either way. I’ll first try a small inward nudge with the gripper commanded closed, considering about +0.02 m in Y while keeping link6 z = 1.045 m unchanged, then open afterward. If the car is only resting on the wall, moving the gripper may not move it, but the pads appear to contact both sides of its lower end. The 0.03 opening command suggests that a thin bumper may still be held, so the motion could tip it into the basket. I’ll target the left link6 at [-0.187, -0.02, 1.045] m with the widthwise grasp orientation unchanged for three control steps. From the measured y = -0.039 m, this requests +0.019 m inward. Could the target be unreachable? That seems likely. I’ll attempt this short motion before releasing.

The car has fallen outside again and is upside down near pixel (235, 235) in the high-camera view. There are 310 control steps remaining. I need to improve the grasp and placement approach. The widthwise grasp at link6 z = 0.931 m worked through the lifts, with the opening command stabilizing at 0.179, but the car rotated and slipped during horizontal transport. Could continued closure have contributed? The clearer explanation is that the car contacted the basket rim because I crossed it too low. With the car held flat, I estimate its bottom about 0.16 m below link6. At link6 z = 1.0 m, its bottom was around z = 0.84 m, below the rim’s estimated z = 0.87 m. Moving toward z = 1.03 m only brought the bottom to about rim height, where it collided. My initial recovery plan is to regrasp the car away from the wall, lift link6 to z = 1.12 m, transport above the basket at that height, and lower to z = 1.02 m only after entering, without tilting. At z = 1.12 m, the flat car’s estimated bottom would be at z = 0.96 m. If it rotates to hang vertically, its bottom might instead be about 0.20 m below link6, suggesting a link6 height of 1.10 m is needed. With the flat-car offset, link6 z = 1.10 m would put its bottom at z = 0.94 m. I want enough clearance, perhaps 0.2 m above the table. Those higher poses may be kinematically constrained. The widthwise wrist posture may have a maximum link6 height near 1.06 m above the basket, and even a pickup-side target at y = -0.11 m, z = 1.12 m may be unreachable. I could try z = 1.08 m or 1.10 m and let the precheck assess feasibility. Earlier, a left-watch lift to z = 1.08 m with the opposite-facing orientation failed by about 13 mm, suggesting a maximum near 1.066 m for that pose. The widthwise car posture has a different yaw, so z = 1.10 m might still be possible. Moving farther toward the front could improve the height available. I could also change to the original top-down orientation for transport, but rotating a held car could make it slip, so I prefer to retain the widthwise grasp posture. A more practical plan may be to lift at the pickup point to link6 z = 1.08 m, putting the flat car’s bottom around z = 0.92 m, about 5 cm above the rim. I could then transport toward the white basket at z = 1.06 m, lowering slightly during the transfer. The earlier widthwise target at x = -0.18 m, y = -0.02 m, z = 1.07 m failed by 6.7 mm, suggesting a maximum height near 1.063 m there. At link6 z = 1.06 m, the flat car’s estimated bottom would be at z = 0.90 m, clear of the rim. If it hangs vertically, the bottom could instead be at z = 0.86 m and still contact the rim. It might rotate under gravity without contact, but the previous stable hold stayed flat until the rim contact in obs_000779. That supports lifting higher before crossing the wall, retaining the orientation, and releasing only after reaching the interior. I need to locate and regrasp the upside-down car. Its world x coordinate may be around -0.175 m, but that is uncertain. The left link6 is currently at [-0.188, -0.025, 1.043] m in the widthwise posture, with the gripper commanded closed. I considered opening and moving above the car at z = 1.05 m before measuring again. A partially visible wrist-image point near (285, 30) might place the car around world x = -0.19 m, y = -0.08 m. Intersecting the high-camera centroid near (235, 235) with an assumed z = 0.78 m plane might instead give x = -0.183 m, y = -0.07 m; I have not calculated that yet. A possible raised approach target is [-0.185, -0.075, 1.05] m with the widthwise orientation and the gripper open, followed by inspection and refinement. The car’s current orientation also needs checking. It may look horizontal in the high-camera view, suggesting a world-X long axis, and the partially visible wrist image near (280, 30) also appears horizontally elongated. That could mean the current closing direction runs along its length rather than its width. It might roll upright again during a low approach, but I should measure its current pose rather than rely on that. In another reading of the high-camera view, the small yellow-and-black car is vertically elongated, with the front hood near image y = 244 pixels and the roof near y = 218 pixels, suggesting a world-Y major axis and suitable world-X widthwise closure. The widthwise posture’s local Y direction was approximately [-0.996, -0.083], nearly world -X; if camera right is opposite local Y, image horizontal should correspond roughly to world +X. A world-Y car should therefore appear vertical, yet the partial wrist silhouette seems horizontal, spanning roughly image x = 200–360 and y = 0–100. Perspective or the incomplete silhouette could explain this, but I cannot resolve its orientation from that impression alone. I’ll first use the current left wrist image to segment the yellow car pixels and project them onto an assumed world-height plane at z = 0.78 m. Principal component analysis will estimate its center and major and minor axes. I’ll calculate candidate grasp quaternions with the closing direction along either direction of the minor axis and compare them with the measured wrist orientation. That will guide a widthwise approach above the car at link6 z = 1.02 m before the next descent.

The mask covers only the top of the partly occluded car, so I do not trust its estimated center at approximately x = -0.160 m, y = -0.048 m. My high-camera estimate is nearer x = -0.17 m, y = -0.08 m. The measured major-axis angle is about 166°, roughly along world -X, and the minor-axis angle is about 76°, roughly along world Y. This suggests the car’s length is along X and its width along Y, so the previous grasp posture, which closes roughly along X, is not ideal. The candidate wxyz quaternion [0.7021, 0.08394, 0.7021, -0.08394] aligns closure with the minor-axis vector [0.236, 0.972], near the +90° Y-rotation posture. A widthwise grasp still risks trapping the basket wall. If the car’s center is near y = -0.08 m, the rear finger could be near y = -0.04 m, close to the wall at y = -0.03 m. It might fit with a 0.04 m gap and an opening of 0.08 m, but the earlier widthwise approach at y = -0.083 m hit the wall. The diagonal minor-axis direction also has positive X and Y components, putting the rear finger farther inside. I should move the car forward, toward negative Y, before regrasping it. I could grasp lengthwise and drag it, as earlier attempts moved the car despite causing it to flip. A simpler option is to use the closed left gripper as a low pusher behind the car. The left link6 is currently at [-0.188, -0.025, 1.043] m in the previous grasp posture, with an opening command of 0. I can first open and rotate above the car, then close the empty gripper, position it behind the car near y = -0.04 m and link6 z = 0.94 m, and push toward y = -0.18 m. Would the closed fingers, aligned along Y, form a suitable thin pusher? Their side surfaces could contact the car’s rear, which I estimate near y = -0.06 m. At link6 z = 0.94 m, the fingertips would be near z = 0.782 m, suitable for the car’s estimated 0.02 m underbody height. A pusher center near y = -0.05 m would be in front of the wall at y = -0.03 m. With the fingers extending downward along local X rather than forward along Y, and an estimated Y thickness of 0.015 m, this seems plausible. Pushing toward y = -0.18 m might move the car as far as y = -0.20 m. Alternatively, I could place one open finger behind the car and one in front, close slightly, and drag it. I prefer the pusher because it does not depend on securing a grasp. I can align above the car at approximately [-0.17, -0.08, 1.02] m, close the gripper, lower behind it near y = -0.045 m, and push. There are 310 control steps remaining, and I estimate this recovery might take about 80. After moving the car away from the wall, I can regrasp across its width and lift high enough to clear the rim. The proposed path toward y = -0.18 m passes near the original left wooden-toy position at x = -0.075 m, y = -0.168 m, with about 0.1 m of X separation, which seems safe. The center transfer point at x = -0.03 m, y = -0.28 m is farther away. First, I’ll prepare an open left-gripper approach above the estimated car center at [-0.17, -0.08, 1.02] m. The orientation change from the previous grasp posture to the candidate is about 1.25 rad, exceeding the 1 rad action limit. I’ll calculate a spherical interpolation at fraction 0.6, giving an intermediate change of about 0.75 rad. After rotating and moving, I’ll inspect the car again because its center remains uncertain under partial occlusion. The right arm will hold its current pose. For now, I’ll compute the intermediate quaternion.

I’ll use five control steps to position the open left gripper at link6 coordinates [-0.17, -0.08, 1.03] m with the computed intermediate wxyz quaternion [0.65952309, 0.25500842, 0.65952309, -0.25500842], while holding the right arm at its current pose with its gripper open. Then I plan to continue to the final orientation, [0.7021069, 0.08393986, 0.7021069, -0.08393986], for the controlled push.

The upside-down car is now fully visible near pixel (290, 90) in the wrist view. I estimate its world-frame position at approximately x = -0.17 m, y = -0.08 m. I plan to position the gripper behind it and push it forward, but I need to finish the wrist rotation first. The final wxyz quaternion [0.7021, 0.0839, 0.7021, -0.0839] should make the car’s major axis appear vertical in the image, with its width horizontal. The left wrist has not yet reached the intermediate orientation; its measured quaternion is approximately [0.558, 0.434, 0.558, -0.435]. For a direct move to the final orientation, I estimate the dot product as 0.392 + 0.036 + 0.392 + 0.036 = 0.856, giving an orientation distance of 1.094 rad. That exceeds the 1 rad action limit and could be rejected. I’ll therefore continue toward the intermediate orientation at link6 position [-0.17, -0.08, 1.03] m for five control steps, keeping the left gripper open, then proceed to the final orientation. The right arm will hold its current pose with its gripper open.

I could try grasping the upside-down car directly across its width with the target orientation, which closes along world Y. If the car center is near y = -0.09 m and the open gap is 0.08 m, I estimate the rear finger would be near y = -0.05 m. With the wall front at y = -0.03 m, that would leave 2 cm of clearance. Perhaps the opening is only 0.06 m, although the images suggest a maximum gap around 0.08 m. The wall’s physical front may instead be near y = -0.06 m, so the clearance is uncertain. Earlier, the rear finger collided during a similar world-Y closing approach with the car centered at y = -0.083 m, and the reported opening command became 0.738. The new orientation is similar enough that another collision seems likely. Pushing the car away from the wall remains the safer choice. For the push, I need to position the closed gripper behind the car, toward the white basket, perhaps at y = -0.055 m. The high-camera estimate puts the car center near y = -0.08 m. Since its length runs along world X, calling this its rear end is misleading; I would contact the middle of its side and push along Y. A pusher at y = -0.05 m could contact the car’s side near y = -0.06 m. I plan to place the closed fingers pointing downward at x = -0.17 m, y = -0.05 m, lower link6 to z = 0.94 m, and then move forward toward y = -0.16 m. The narrow closed fingers should fit near the wall, although contact at y = -0.05 m remains possible. The wrist can now reach the final orientation directly. From the measured wxyz quaternion [0.594, 0.383, 0.593, -0.385] to the approximate target [0.702, 0.084, 0.702, -0.084], I estimate the dot product as 0.417 + 0.032 + 0.416 + 0.032 = 0.897, giving an orientation distance of about 0.91 rad, below the 1 rad action limit. I could close the gripper at its current raised pose before moving to the pusher position. Instead, I’ll keep it open for five control steps while moving the left link6 to [-0.17, -0.05, 1.0] m and commanding the final wxyz quaternion [0.7021069, 0.08393986, 0.7021069, -0.08393986]. I’ll inspect that raised alignment before closing and lowering the pusher. The right arm will hold its current pose with its gripper open.

The left wrist has moved closer to its target orientation but has not reached it yet. I estimate the quaternion dot product with the target as 0.445 + 0.026 + 0.445 + 0.026 = 0.952, giving a remaining orientation distance of about 0.62 rad. I’ll continue toward the same target position, [-0.17, -0.05, 1.0] m, and target orientation for five more control steps with the left gripper open, while holding the right arm stationary. Then I plan to close and lower the left gripper for the controlled push.

The full-car mask estimates a world-frame major-axis angle of -129°, or equivalently 51° along the same axis, with XY components approximately [-0.63, -0.776]. Although the car looks horizontally elongated in the image, its major axis is diagonal in the world XY plane. Its estimated center at x = -0.158 m, y = -0.056 m is plausibly close to the wall. The minor axis, across its width, is approximately [-0.776, 0.631] at 141°. Both candidate widthwise grasp orientations are about 1.56 rad from the current wrist orientation, so either would require an intermediate rotation. That closing direction also has a positive-Y component, leaving the rear finger near the wall. I should push the car forward, along negative Y, before attempting the widthwise grasp. I can use the current gripper as a pusher without finishing the grasp alignment. The measured left link6 position is [-0.171, -0.05, 1.0] m, almost at the car’s estimated center in Y rather than behind it. I considered positioning the closed gripper behind the car at x = -0.158 m, y = -0.03 m. Another option is [-0.158, -0.025, 0.94] m with the current orientation, followed by a push toward y = -0.15 m. However, y = -0.025 m might put it in the white basket wall. At x = -0.158 m, near the basket’s estimated inner right edge at x = -0.15 m, the closed fingers might instead be just outside the wall, but that clearance is uncertain. I also considered approaching behind the car along its major axis. For a negative-Y push, I’ll instead contact the car’s rear side near x = -0.158 m, y = -0.04 m. This is likely in front of the wall and 0.016 m behind the estimated car center. I estimate the car’s extent along Y at about 0.04 m and its rear edge at y = -0.036 m, so a narrow closed pusher at y = -0.04 m should contact it. I’ll lower to [-0.158, -0.04, 0.94] m, then plan a separate push to [-0.158, -0.14, 0.94] m. If contact is maintained, I expect that push to move the car toward y = -0.156 m, clear of the wall. I’ll keep the wrist fixed at the current normalized wxyz quaternion [0.665, 0.241, 0.664, -0.241] to avoid an unexpected sweep. I considered closing above the current position before descending, but I’ll command closure while moving toward [-0.158, -0.04, 0.94] m over three control steps. I expect closure to finish during the descent, with clearance initially and contact afterward; I’ll inspect whether the pusher actually touches the car. The right arm will hold its current pose with its gripper open.

The pusher has not reached table level yet: the left link6 is at z = 0.972 m, and I estimate the finger bottoms at z = 0.814 m, close to the car’s estimated top at z = 0.80 m. I should lower link6 to z = 0.94 m and continue commanding full closure for another three control steps before pushing. The full car is visible near pixel (400, 160), with the pusher fingers near the bottom of the image around x = 200 and x = 500 pixels. I am unsure whether they are actually behind the car, but I expect them to contact it during the forward motion. For now, I’ll use three steps toward left link6 position [-0.158, -0.04, 0.94] m, keeping the fixed wxyz quaternion [0.665, 0.241, 0.664, -0.241] and commanding the gripper closed. The right arm will hold its current pose with its gripper open.

The left link6 has not descended: z remains at 0.972 m. Its orientation changed despite the fixed target quaternion, with an estimated quaternion difference of about 0.03. The lack of downward progress suggests that the white basket wall is physically blocking the pusher at y = -0.043 m. I need a different approach rather than continuing to lower behind the car. I considered pushing the car sideways along negative X away from the white basket’s right edge, then forward. A better option seems to be approaching from its right side and pushing diagonally forward and left, along negative X and negative Y. One proposed starting position is x = -0.12 m, y = -0.04 m, to the right of the basket. Another is [-0.11, -0.05, 0.94] m, followed by a push toward x = -0.20 m, y = -0.12 m. With the car estimated at x = -0.158 m, y = -0.056 m, that would put the pusher about 0.05 m to its right, where it could contact the side and push left. I also considered continuing the diagonal push to [-0.22, -0.12] m in XY, moving the car left and forward away from the wall. I estimate the white basket’s X extent as [-0.37, -0.14] m, so x = -0.11 m is outside it. However, the blue basket is centered at x = 0 m, with its front wall spanning approximately x = ±0.1 m and its left edge near x = -0.11 m. Descending at x = -0.11 m, y = -0.05 m might therefore contact the blue basket. I briefly considered x = -0.10 m as a position outside both baskets, but that clearance is uncertain. My rough estimate of the gap between baskets is 0.04 m, with x = -0.115 m near its center. Using the estimated white right edge at -0.14 m and blue left edge at -0.11 m gives a 0.03 m gap; a pusher about 0.02 m thick might fit at x = -0.125 m. I will try x = -0.115 m, y = -0.04 m, on the car’s right and rear side. A subsequent diagonal move toward x = -0.22 m, y = -0.12 m would move forward away from the white front wall. I initially considered moving the closed left gripper directly from [-0.158, -0.043, 0.972] m to [-0.115, -0.04, 0.94] m with the wrist orientation retained. That requests +0.043 m in X and -0.032 m in Z over three control steps. Moving outward and downward might free it from the wall; if it remained blocked, I could move right at the same height before lowering. A safer first step is to retract rightward and upward. I considered [-0.11, -0.04, 1.0] m and will use [-0.115, -0.04, 1.0] m for three control steps, retaining the target wxyz quaternion [0.665, 0.241, 0.664, -0.241] and commanding the gripper closed. Its reported opening command is currently 0.302. I’ll hold the right arm stationary with its gripper open, inspect the retraction, and then lower toward z = 0.94 m in the gap before pushing.

The closed gripper appears directly below the car’s center in the wrist view. Could I simply lift it? I do not think so, since the gripper is closed. I need to move the left link6 rightward from its measured x = -0.139 m to x = -0.115 m and lower it. I could continue toward [-0.115, -0.04, 1.0] m for three control steps, then lower separately. Instead, I’ll combine those motions by targeting [-0.115, -0.04, 0.94] m now. The current x position appears to be at the wall’s edge, and moving right should free the gripper to descend into the side gap. This may succeed; I’ll use three control steps.

The closed pusher appears to be at the car’s lower-left side, possibly in contact with its bottom-left area. Has the car shifted? I can now attempt a diagonal forward-left push toward [-0.20, -0.12, 0.94] m. From the measured left link6 position of [-0.128, -0.045, 0.965] m, that target requires a displacement of [-0.072, -0.075, -0.025] m, with an estimated distance of 0.107 m. I expect this motion to bring the gripper left and forward into contact with the car and push it. I should start with a short motion and inspect the result rather than execute the whole push at once. I’ll first use three control steps toward [-0.17, -0.09, 0.94] m, a displacement of [-0.042, -0.045, -0.025] m with an estimated distance of 0.066 m. I expect this to move the car somewhat. After inspecting the observation, I plan to continue toward x = -0.22 m and y = -0.14 m.

The pusher is moving slowly, and the car may be moving with it: its center appears to remain in the same position relative to the wrist camera. Is it now in front of the white basket? In the high-camera view, the car is still near pixel (241, 230), so it could be staying in place while the pusher moves. The unchanged wrist-relative position nevertheless suggests that the car is likely being pushed. I’ll continue toward the same target for three control steps.

In the high-camera view, the car is near pixel (242, 229) and seems to have moved slightly upward rather than forward. The pusher is moving, but the car may be rotating while staying in place. The left link6 is currently at [-0.153, -0.07, 0.951] m, and the car appears to be in contact with the pusher. I considered continuing toward [-0.17, -0.09, 0.94] m for three control steps, which may reach the target and move the car forward. I’ll instead use five steps to complete this segment; my estimated remaining position difference is [0.017, -0.02, -0.011] m. The gripper should reach the target, and the car may move with it. I’ll inspect the result before making the further push toward x = -0.22 m and y = -0.16 m.

The car is now mostly hidden by the gripper in the high-camera view, so I am unsure whether it has moved forward along Y, but the pusher appears to be working. I’ll extend the push to y = -0.17 m to clear the wall, targeting left link6 position [-0.19, -0.17, 0.94] m. From the measured pose, the target displacement is [-0.021, -0.08, -0.003] m, with an estimated distance of 0.083 m. I expect the car to slide forward and left. The path near x = -0.19 m, y = -0.17 m appears clear; compared with the left wooden toy’s position at x = -0.075 m, y = -0.168 m, I estimate 0.115 m of separation, which seems sufficient. I’ll use five control steps.

The car is now visible at the left edge of the wrist view, and the pusher appears to have slid past it. I am unsure how far the car moved, and I cannot determine its position from the high-camera view. Since the car is left of the pusher in the wrist image, the pusher has moved right relative to it, and the car has not fully followed the push. It is probably clearer of the wall now, but it still appears near the white basket’s front. I’ll stop pushing and lift clear to inspect the car’s actual position. I’ll open the left gripper and raise link6 from its current position of [-0.18, -0.132, 0.943] m to z = 1.05 m over five control steps, keeping its current orientation. This should leave the car in place so I can locate it using the high and wrist views.

The car appears near pixel (251, 225) in the high-camera view, still close to the white basket’s front-right corner. Has it moved right relative to its original position? I tentatively estimate its world coordinates as x = -0.145 m and y = -0.07 m, suggesting little forward movement. It remains upside down. A widthwise grasp followed by a higher lift might work now, although y = -0.07 m could still leave it too close to the wall. The full car is visible on the left side of the current wrist image without occlusion, so I’ll use that view to estimate its center and major and minor axes more accurately. I initially considered a dark-pixel region spanning image x = 30–260 and y = 120–300. That includes part of the white basket at the bottom and possibly the black left gripper edge, so I should bound the car more carefully. I considered a polygon around it spanning x = 40–260 and y = 120–305, but the left gripper may begin around x = 0, y = 200 and intrude into that region. Narrowing the region to approximately x = 60–260 and y = 120–290 should exclude the gripper while retaining the car body except for its left end. The yellow trim now also covers enough of the car to be useful, but I’ll use principal component analysis on the dark body pixels, with an HSV value threshold below 95. I’ll project those pixels using an assumed world height of z = 0.78 m for the upside-down car’s upper underbody surface. From the estimated center and axes, I’ll calculate grasp quaternions with the closing direction along either direction of the minor axis and choose the one closest to the current wrist orientation. After measuring, I plan to center the gripper above the car at link6 z = 1.03 m with the chosen orientation, descend straight down, grasp, lift to link6 z = 1.09 m, and then transport it. For now, I’ll perform the measurement.

The full-body estimate puts the car’s major axis along world Y and its minor axis along world X. The widthwise grasp quaternion [0.49287, 0.50703, 0.49287, -0.50703] in wxyz order is close to the front-facing posture and commands closure along X. Its orientation distance from the current pose is about 0.903 rad, within the action limit. The estimated car center is x = -0.1508 m, y = -0.0801 m. The white basket’s right edge may be near x = -0.14 m, so the car is partly adjacent to it. Could a finger near x = -0.20 m overlap the front wall? I estimate the wall’s front at y = -0.03 m, while both fingers would be near y = -0.08 m, in front of it. Closing along X therefore appears to avoid the wall. I’ll first center the open left gripper above the car at link6 position [-0.151, -0.080, 1.03] m with the widthwise quaternion, using five control steps while holding the right arm stationary. Then I plan to descend straight to link6 z = 0.929 m, close, lift to z = 1.09 m, and transport the car vertically over the white basket at z = 1.06 m. The car is upside down, but this widthwise alignment should provide a stable grasp. It is similar to the earlier successful widthwise alignment, with the car now centered at x = -0.151 m rather than -0.235 m. I’ll avoid lateral corrections at low height.

The left arm has not reached its target, and its orientation changed only partway during the five control steps. Did the car move slightly? It appeared near pixel (150, 220) before and now appears near (250, 210) in the wrist view, but that shift is likely due to camera motion; its world-frame position probably remains unchanged. I’ll continue toward the same raised position and widthwise grasp orientation for 10 control steps to finish centering and rotating the open left gripper. I’ll hold the right arm at its current pose with its gripper open.

The current camera-right vector is approximately [-0.967, -0.22, -0.125], mostly along world -X. The two endpoint estimates confirm that the car’s horizontal appearance corresponds to its major axis along -X. Its width runs along the world-frame minor-axis direction [0.184, -0.983], mostly along -Y. I’ll choose the wxyz target quaternion [0.70409, -0.06525, 0.70409, 0.06525], near the +90° Y-rotation posture, to align closure with that minor axis. The alternative quaternion [0.065, 0.704, 0.065, -0.704] closes along the opposite direction. The chosen target is about 1.5 rad from the measured orientation, so I need an intermediate rotation. At the target, camera right should be opposite local Y, approximately [-0.184, 0.983], mostly along world +Y. The car’s major axis along -X should then appear vertical, with horizontal closure across its width. This is similar to the right watch’s case-grasp orientation. The current wrist is near the front-facing, lengthwise posture, so the required rotation is about 86°. I should rotate above the car, then descend vertically. The estimated car center at [-0.1494, -0.07545] m in world XY coordinates is close to the current link6 coordinates of [-0.151, -0.081] m. Clearance from the white basket wall remains uncertain. With the car center near y = -0.075 m, I initially estimate the open rear finger near y = -0.04 m and the wall front perhaps at y = -0.03 m, leaving about 1 cm. A similar approach previously collided at y = -0.083 m. Is the rear finger toward negative Y with this target? Local Y is approximately [0.184, -0.983], and the fingers open in both directions along it. The rear finger lies along -local Y, approximately [-0.184, 0.983]; an estimated +0.04 m Y offset would put it near y = -0.035 m, still close to the wall. With the car near x = -0.15 m at the basket’s right edge, that finger might also be near x = -0.156 m and could hit the wall. If contact occurs, I could reduce the opening or move the car farther forward, although there is no direct command for a reduced opening. Another option is to push it toward y = -0.1 m before rotating; the earlier pusher moved it only about 0.02 m. The current clearance may be sufficient, so I’ll try the raised alignment first. I’ll use SciPy to calculate spherical interpolation halfway from the normalized measured quaternion to the chosen target, giving an intermediate orientation change of about 0.75 rad. My planned open-gripper position is [-0.149, -0.075, 1.03] m. After the intermediate rotation, I plan to finish the target rotation, descend, close, and make a high lift. There are 242 control steps remaining, which should be enough.

I’ll use 10 control steps to rotate the open left gripper to the computed intermediate quaternion [0.6791103, 0.19753695, 0.6791103, -0.19646262] in wxyz order, targeting the raised position [-0.149, -0.075, 1.03] m above the car. I’ll hold the right arm at its current pose with its gripper open. After this intermediate rotation, I plan another 10-step action toward the final widthwise grasp orientation.

The car appears diagonal in the wrist view and is becoming vertically aligned as the gripper rotates above it. The left wrist’s current quaternion has w and x components of approximately 0.64 and 0.301, compared with 0.679 and 0.198 for the intermediate target. I estimate the remaining rotation to that intermediate orientation at about 0.36 rad. For a direct rotation to the final widthwise grasp orientation, I estimate the quaternion dot product as 0.450 − 0.020 + 0.450 − 0.019 = 0.861, giving an orientation distance of about 1.07 rad, slightly above the 1 rad action limit. I considered five more steps toward the intermediate orientation before proceeding to the final one. I’ll use 10 steps toward the intermediate orientation now, then plan another 10-step action toward the final alignment. Both grippers will remain open, and the right arm will hold its current pose.

The car appears nearly vertical in the wrist view, which looks suitable for a widthwise grasp. I’ll finish rotating the left wrist to the wxyz quaternion [0.70409, -0.06525, 0.70409, 0.06525], about 0.75 rad from the intermediate orientation, using 10 control steps. At that orientation, the car should appear vertical and the fingers should close horizontally across its width. I considered combining this final rotation with a 10-step descent to link6 z = 0.929 m. To avoid contact while rotating, I’ll instead keep link6 at z = 1.03 m for this 10-step rotation, then descend vertically in a separate action.

The car appears vertical enough in the wrist view for a widthwise grasp, and its center near pixel (320, 150) indicates that the gripper’s x and y alignment is good. The measured left wrist quaternion is [0.706, 0.045, 0.706, -0.045] in wxyz order, still about 0.31 rad from the final target orientation. I can finish that rotation while descending toward link6 position [-0.149, -0.075, 0.929] m over 10 control steps, keeping the gripper open. I’ll hold the right arm at its current pose with its gripper open. If the left rear finger hits the nearby basket wall, the reported opening command may decrease, so I’ll watch for that during the descent.

The left gripper’s reported opening command decreased from 1 to 0.701 during the descent, which I interpret as rear-finger contact with the basket wall again. The image appears to show a finger touching the car’s left side, between the car and the white wall; the narrower opening may have been forced by that contact. The car is centered between the fingers, so I may still be able to close and grasp it if the finger is already in the gap. Link6 stopped at z = 0.941 m rather than reaching the 0.929 m target, possibly because of the wall. I’ll close the left gripper for three control steps at position [-0.148, -0.075, 0.941] m, using the existing target orientation. Its measured quaternion is [0.706, -0.06, 0.702, 0.069] in wxyz order. Then I plan to lift straight up; if the wall is blocking the rear finger, that lift should free it before horizontal transport. This grasp may work. I’ll hold the right arm at its current pose with its gripper open.

The left gripper’s reported opening command is 0.134, and the fingers appear to be gripping the car’s sides near the bottom, which looks promising. I’ll lift vertically toward a link6 height of 1.10 m in stages, retaining the grasp orientation. From the current height of 0.943 m, the target is 0.157 m away, within the 0.25 m position limit. Five control steps may bring it to about 1.0 m rather than all the way to the target. I’ll keep the left gripper closed and hold the right arm stationary with its gripper open.

The grasp failed again: the reported opening command reached 0, and the car remains on the table. Perhaps the fingers contacted only an edge because link6 at z = 0.943 m was too high. I wanted to descend to z = 0.925 m, but the descent stopped near z = 0.941 m, apparently because of the wall rather than the car. With the underbody top estimated at z = 0.78 m, my estimate of the fingertip contact height is 0.94 − 0.157 = 0.782 m, leaving only tip contact that can slip. Lowering link6 to z = 0.923 m should provide fuller side contact, but the wall blocks the rear finger. I need to move the car away from the wall first. The pusher did not move it much, perhaps because of its orientation or contact geometry. Pushing from the front would not help; I need to pull it forward. Tilting the table is not an option. I’ll try a low lengthwise grasp and drag the car forward without lifting, then regrasp across its width in clear space. The lengthwise lift slipped before, but dragging could work; even if the hold slips during the drag, it may still move the car forward. The upside-down car’s estimated center is around [-0.15, -0.075] m in world XY coordinates. The original and opposite-facing downward postures both close along world X, suitable for a lengthwise hold. I’ll rotate the open gripper above the car toward the opposite-facing posture, descend vertically to link6 z = 0.923 m, close along its length, and drag toward y = -0.18 m at that same height before opening. This is the approach I had planned earlier but replaced with pushing. With 194 control steps remaining, I estimate about 60 steps for the grasp, drag, regrasp, placement, and reset. The current left wrist quaternion is approximately [0.704, -0.065, 0.704, 0.065], and the opposite-facing target is [0.5, 0.5, 0.5, -0.5], both in wxyz order. I estimate their dot product as 0.352 − 0.0325 + 0.352 − 0.0325 = 0.639, giving an orientation distance of 1.755 rad, above the 1 rad action limit. Although I described this as roughly a 90° rotation, I need an intermediate orientation at interpolation fraction 0.5, about 0.877 rad away. I’ll calculate that midpoint, rotate with the gripper open above the car at link6 z = 1.03 m, then finish the opposite-facing rotation and descend. The endpoint estimate gave the car’s major-axis vector as [-0.983, -0.184], at about 191° in the world XY plane, mostly along world -X. Closure along world +X is nearly collinear with that axis. Using the more precise estimated center of [-0.149, -0.075] m, I can drag toward y = -0.16 m while retaining link6 z = 0.923 m and perhaps keeping x = -0.149 m unchanged. That is a nearer alternative to the proposed y = -0.18 m drag. Then I’ll open, rotate back to the widthwise grasp orientation in the clear area near y = -0.16 m, regrasp at link6 z = 0.923 m, lift to z = 1.08 m, and place the car. I think 194 steps should suffice if the larger motions each take about 10 steps. Dragging forward moves away from the basket, so it cannot replace the final regrasp and placement. I’ll calculate the halfway quaternion now.

The computed intermediate quaternion is approximately the same orientation used earlier for the pusher. I’ll use 10 control steps to raise the open left gripper to link6 position [-0.148, -0.075, 1.03] m while rotating to the intermediate wxyz quaternion [0.66508192, 0.24013755, 0.66508192, -0.24013755]. The right arm will hold its current pose with its gripper open. Afterward, I plan another 10-step rotation toward the opposite-facing orientation [0.5, 0.5, 0.5, -0.5] for the low lengthwise grasp.

The left wrist has reached the intermediate orientation, and the car appears horizontal in the wrist view, aligned for a lengthwise grasp. The final front-facing quaternion is [0.5, 0.5, 0.5, -0.5] in wxyz order, about 0.877 rad from the intermediate orientation. I considered using 10 control steps to finish the rotation, followed by another 10 steps to lower link6 to z = 0.923 m. I’ll instead combine the rotation and descent in one 10-step action. The gripper is open and raised above the car, so this seems safe enough; I expect the orientation to finish after about five steps, followed by the descent. I’ll target the left link6 at [-0.148, -0.075, 0.923] m with the front-facing quaternion and keep the gripper open. I expect this action to finish the orientation and reach the low grasp height.

The left wrist has not yet reached its final orientation: its measured quaternion’s w and x components are 0.597 and 0.382, and link6 is at z = 0.954 m. Progress over the last 10 control steps was slow because the rotation and descent were combined. The car’s length appears horizontal, with the fingers at its sides, so the alignment looks good. I’ll continue toward the same target for another 10 control steps, keeping the left gripper open before closure.

At a left link6 height of z = 0.932 m, the car appears large in the wrist view. Are the fingers positioned horizontally around its ends? The body extends beyond the bottom of the image, with the rear end toward the top right and the front toward the bottom left. Because the car is diagonal, horizontal closure may contact its middle sides rather than its ends. I think I can still drag it forward. I’ll close the left gripper for three control steps, then plan to slide it forward toward y = -0.15 m while keeping link6 at z = 0.932 m, without lifting. I considered combining closure and dragging in one action, but I’ll close only for this action so I can verify contact first. The right arm will hold its current pose with its gripper open.

The left fingers appear to contact the car’s sides or ends, and the reported opening command is 0.362. The car has rotated to a more vertical orientation in the wrist image, so the closing direction now appears to cross its width. It may be securely held. I’ll slide it forward toward y = -0.16 m without lifting, keeping link6 at z = 0.932 m. Even if the grasp slips, I expect this motion to move the car away from the basket. I’ll target the left arm at [-0.15, -0.16, 0.932] m with the front-facing quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order and the gripper closed, using five control steps. Keeping the motion low and directed away from the basket should avoid the rim.

The car remains between the fingers and appears to be moving with the gripper. Its yellow side and wheels are visible; it may be resting on its side rather than fully upright. The reported opening command is 0.188. Its long axis is now vertical in the wrist image, while closure is horizontal across its width. The current front-facing orientation closes along world X; the car’s long axis may be along world Y. This looks like a stable widthwise hold, so I may be able to lift it without regrasping. I’ll continue the slide for five control steps to left link6 position [-0.15, -0.18, 0.932] m, moving another 0.062 m forward in Y while retaining the grasp orientation. Once it is in clear space at y = -0.18 m, I can try a vertical lift to z = 1.10 m, or 1.08 m if necessary, before transporting it. I previously estimated a maximum height near 1.066 m with this front-facing orientation near the basket, but the closer-to-base position at y = -0.18 m may permit 1.10 m. If that target fails the precheck, I’ll lower it. A later white-basket target at x = -0.18 m, y = -0.02 m, z = 1.06 m may be reachable with the same orientation. I estimate the held car’s downward extent at about 0.16 m, so a lift to 1.08 m should provide enough clearance. For now, I’ll execute only the five-step slide.

The car remains held, upright on its side, in clear space at y = -0.168 m. I’ll lift the left link6 vertically to [-0.15, -0.168, 1.10] m while keeping the front-facing quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order and the gripper closed. The target is 0.167 m from the measured pose, within the position limit. The height may be near the local kinematic limit, but this position is closer to the base. I’ll use 10 control steps and hold the right arm stationary with its gripper open.

The car appears stable in the grasp, and the reported opening command remains at 0.181. After 10 control steps, the left link6 has reached only z = 1.044 m rather than the target of 1.10 m. Could it be nearing its maximum height? Because the car is held on its side, I estimate its bottom may be around z = 0.88 m, but I am unsure whether it is above the rim. The gripper hides the car in the high-camera view. The wrist view shows the basket top near the bottom of the image, and the car extends down to the image boundary, suggesting its bottom might instead be around z = 0.90 m. I’ll continue toward the same 1.10 m link6 height for another 10 control steps to obtain clearance before moving horizontally toward the basket.

The car now has good clearance above the basket rim. I considered moving over the white basket to link6 position [-0.18, -0.02, 1.1] m while retaining the front-facing quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order. A previous high, rearward target at approximately [-0.06, -0.072, 1.08] m failed the precheck with this orientation, but x = -0.18 m is on the left arm’s natural side, so this approach may be feasible. I’ll instead target [-0.18, -0.03, 1.08] m, lowering link6 by 0.02 m during the transfer. The planned position change is [-0.03, 0.138, -0.02] m, with an estimated distance of 0.142 m. Using an estimated car-bottom offset of 0.16 m below link6, its bottom would be at z = 1.08 − 0.16 = 0.92 m, clear of the rim. I’ll use 10 control steps, keep the left gripper closed, and hold the right arm stationary with its gripper open. If the precheck fails, I’ll try a lower link6 height of z = 1.06 m.

The car remains held above the white basket’s front-right area, though the gripper obscures it in the high-camera view. The wrist view shows the first bus inside the basket on the right. At the current link6 y coordinate of -0.067 m, I estimate the held car’s bottom near z = 0.92 m, above the rim and without contact. I’ll continue toward the link6 target [-0.18, -0.03, 1.08] m for five control steps to finish moving inward at clearance height. Once it reaches y = -0.03 m, I’m considering lowering link6 to z = 1.0 m inside the basket, which would put the car’s estimated bottom at z = 0.84 m, below the rim but inside, before releasing it. With the new car at x = -0.18 m and the bus perhaps at x = -0.24 m, I estimate 0.06 m of separation, which seems sufficient.

The left link6 is at y = -0.044 m, still short of the -0.03 m target, but the wrist view suggests the car is over the white basket’s interior, with the basket bottom behind it. I considered lowering link6 vertically to z = 1.0 m while continuing toward y = -0.03 m. I’ll instead combine a small inward move with a descent to link6 position [-0.18, -0.03, 1.01] m. This requests 0.014 m inward and 0.064 m downward, with an estimated total position distance of 0.066 m. I estimate the car’s bottom is currently at z = 0.914 m and would lower to about z = 0.85 m, inside the basket. Since it appears to be over the interior already, this motion should avoid the rim. I’ll use five control steps with the grasp maintained, then release the car afterward.

The car’s bottom now appears to be inside the white basket, with the white wall behind it and the first bus to its right. After five control steps, the left link6 is at z = 1.026 m rather than the target of 1.01 m. I estimate the car’s bottom at about z = 0.86 m and the rim at z = 0.87 m, so it appears to be below the rim and inside the opening. I’ll open the left gripper for three control steps while holding its current pose and keeping the right arm stationary. Then I’ll withdraw upward and check whether the car settles inside. If it does, the car placement will be complete.

The second car is clearly inside the white basket, supported beside the bus, either upright on its wheels or resting on its side. All objects are now sorted. Native success is still false because the arms still need to return. I have 98 control steps remaining. Before resetting, I need to move both open grippers into clear space so the return motion avoids the baskets. The left link6 is currently at [-0.179, -0.028, 1.026] m with the front-facing quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order, and its downward fingers are still inside the white basket. It needs to withdraw upward and toward the front. The right link6 is at [0.3, -0.093, 1.085] m with the +90° Y-rotation orientation and its gripper open. It is near the red basket; I am not certain that it already has enough clearance for reset. The initial link6 positions were approximately [±0.3, -0.352, 0.922] m with the initial Z-rotation orientation. Reset will return the joints to their initial configurations once both arms are clear. I first considered a 10-step withdrawal to left position [-0.25, -0.20, 1.05] m and right position [0.3, -0.25, 1.05] m, retaining their current orientations and commanding both grippers open. I estimated the left displacement magnitudes as [0.071, -0.172, 0.024] m, with a distance of 0.187 m, and the right changes in Y and Z as -0.157 m and -0.035 m, with a distance of 0.161 m. Both would move toward the front, away from the baskets. After a 10-step preparation, 88 steps would remain. I could allow 50 steps for reset and, if necessary, another 38 after inspecting the observation. I estimate the arms would be roughly 0.2 m from their initial positions after that withdrawal, but I am unsure whether 50 reset steps would suffice. A 15-step preparation is another option, leaving 83 steps for a 50-step reset and a possible further 33. Reset will likely terminate when the initial configurations satisfy the success condition, but I must inspect the feedback rather than assume arrival. For this action, I’ll instead target left position [-0.28, -0.24, 1.04] m and right position [0.3, -0.28, 1.04] m, with both grippers open and their orientations retained. These targets bring them nearer their initial XY positions while keeping them higher, and the withdrawal path appears safe. The left target displacement is [-0.101, -0.212, 0.014] m, about 0.235 m overall, within the 0.25 m limit. The right displacement is [0, -0.187, -0.045] m, about 0.192 m overall. I’ll use 10 control steps. The arms may only move partway, so I’ll inspect their measured poses and continue clearing them if needed before calling reset.

Both cars are visible inside the white basket. The arms are still near the baskets, so I’ll continue withdrawing them toward the same targets for another 10 control steps. Then I’ll reset the arms.

Are the arms clear enough now? The left link6 is at [-0.248, -0.171, 1.041] m with the fingers pointing downward, and the white basket is behind it near y = 0 m. The right link6 is at [0.3, -0.266, 1.044] m. Both arms appear to be in clear, open space, and all held objects have been released, so I can call robot_reset now. The return toward the initial y = -0.352 m and z = 0.922 m positions and the initial 90° Z-rotation orientation might sweep the arms forward and downward, but that motion should remain clear in front of the baskets. I’ll allow 50 control steps for the reset. There are 78 steps remaining, which should be enough.

The reset is not complete, and 28 control steps remain. The original return plan required 64 steps; after executing 50, perhaps about 14 more are needed. The reported maximum home joint error is about 0.655 rad, so another robot_reset call allowing 28 steps should be enough to finish, though completion still needs verification. The per-call maximum is 50 steps, so I’ll request 28.

The final feedback reports native_success as true, and the episode has ended. I’ll briefly report that all objects were sorted into their assigned baskets and the arm return completed successfully. I will take no further robot actions.