按语言分拣物体任务成功

I need to sort the objects using the robot tools. I should first read the robot-manipulation skill and inspect the saved high-resolution images and observation JSON, including the camera calibration. The 1100 control steps should be enough, but I need to plan carefully. I initially wonder whether there are five objects and whether the wooden toys are three elephants. My tentative reading of the image is a wooden elephant on the left near image coordinates x = 140, y = 232; another elephant in the middle near x = 316, y = 292; and a yellow object on the right near x = 449, y = 289 that is likely a wooden toy, perhaps a horse. There appears to be a green pepper in the center near x = 274, y = 245. There may be two chocolate bars: a Snickers near x = 210, y = 263 and another near x = 508, y = 284, possibly partly occluded by the gripper. That suggests six objects: three wooden toys, one green pepper, and two chocolate bars. I need to put all wooden toys into the left basket, peppers into the middle basket, and chocolate bars into the right basket. I should inspect the saved images more closely to confirm the identities and positions before manipulating them.

I’ll read the initial observation JSON to obtain the recorded camera calibration and image paths, along with the measured robot state. This will support locating the objects and planning their grasps for sorting.

I should derive world positions from the images, but first I need to estimate the table height. What is the robot base’s z position? The initial EEF height is about z = 0.922 m, and the gripper fingertips appear near image y = 250. Perhaps the tabletop is at z = 0.75 m. I should use the calibration and wrist images to investigate, and see whether the known gripper geometry helps estimate the table’s z coordinate. My tentative assumption is that the table plane is at z = 0.75 m, as in many RoboDojo tasks, with the origin at the floor center. The initial quaternion [0.707, 0, 0, 0.707] represents a +90° rotation about z, so the fingers’ local +X direction should point along world +Y. The left link6 position is approximately x = -0.3 m, y = -0.352 m, z = 0.9215 m. I can invert the camera extrinsics to compute the camera centers and project estimated fingertip positions into the high-camera image, using an estimated ground plane. I wonder whether the high camera’s world position has x = 0 and y approximately 0.345 m; I do not yet have an estimate for its z coordinate. I’ll compute the camera centers and fingertip projections.

I need to understand the robot’s actual initial geometry. Are the visible gripper fingertips in the high-camera image around x = 151, y = 245 on the left? Where is link6 in the left wrist-camera view? The black fingers appear near x = 150, y = 246 on the left and x = 491, y = 246 on the right; are they pointing inward? Initially, local +X points along world +Y, away from the front. Do the gripper tips therefore extend away from the robot toward the top of the image? The robot bases are at the bottom. The narrow black fingertips appear near (151, 245) and (488, 244), with larger black triangles near (95, 247) and (547, 248). Where do the link6 positions at x = ±0.3 m, y = -0.352 m, z = 0.922 m project in the high-camera image? I’ll calculate those projections to help interpret the visible gripper geometry.

The projection puts the link6 base near pixel (82, 354), but I tentatively see the grey wrist near (70, 280), so there may be a mismatch. Could the fingers’ local +X direction differ from world +Y? The quaternion rotates about Z and does map X to Y. Perhaps the link6 position is a central end-effector reference at (0, -0.352, 0.9215) m. The projected fingers extend from approximately x = 82 to 125 and y = 354 to 244, whereas the high-camera image seems to show the left gripper body centered near (77, 280), with fingers near x = 97 and 150 at y = 260. Perhaps the arm is hidden at the projected link6 base location, (82, 354). I do not yet have an exact interpretation. I’ll investigate the table height by checking whether the inferred ground positions of the objects are plausible. The green pepper appears near pixel (273, 248) in the high-camera image. If the table is at z = 0.75 m, I can invert its camera ray to obtain x and y. Could the basket centers be near y = 0.1 m? I’ll apply the formula to estimated object-base and center pixels at assumed heights of z = 0.75 m and 0.8 m.

The table is likely at z = 0.75 m, with the left elephant around (x, y) = (-0.41, -0.06) m. The basket centers may be at x = -0.32, 0, and 0.32 m, with y = 0.05 m. I am still unsure of the y coordinate of their back rims. In the initial wrist image, the white basket spans approximately image x = 180 to 523. Perhaps its world center is at x = -0.3 m and its width is 0.24 m. I could check the projection assuming a center at x = -0.3 m, y = 0.1 m, a table height of 0.75 m, and a rim height of z = 0.86 m. I should use the wrist view, camera calibration, and estimated table plane to refine the object positions. I can also triangulate corresponding object points between the high and wrist views. The elephant appears large in the initial left wrist image, centered near pixel (211, 351), while its center in the high image is near (142, 232). A possible matching feature is the decorative blanket on its upper back, near (141, 220) in the high image and (211, 288) in the wrist image, though I need to confirm that correspondence. I should inspect enlarged crops. I could use Python to make an upscaled collage, or first view the original high-camera image.

Perhaps the chocolate object on the right is a tiny bar, though I am unsure of its orientation. I’ll inspect an enlarged crop.

I’ll view the enlarged crop I just created to clarify the possible chocolate bar on the right and its orientation before planning a grasp.

I’ll inspect the enlarged left wrist image to refine the positions and grasp geometry of the objects on the left, using it alongside the high-camera view before moving the arm.

The left elephant’s center may be around world x = -0.40 m, y = -0.11 m. I could refine this by triangulating a feature on its upper back. The decorative back feature may be near high-camera pixel (141, 220), or its center near (142, 222). In the enlarged left wrist image, the upper-back center is around (425, 568), corresponding to (212.5, 284) in the original image. These correspondences are approximate. Another candidate is the tail tip or rear-right feature near high-camera pixel (158, 224), though I am unsure which wrist-image feature matches it. The lighter patch on the front of the head might be more robust, perhaps at (133, 230) in the high view and (176, 332) in the wrist view, but the viewing orientations differ. I could reconstruct points from several camera-ray correspondences using least squares, or create enlarged views with pixel grids in matplotlib. However, the current estimates may be sufficient for an initial approach followed by visual alignment. I could first turn both arms downward and move above the objects at a safe height so the wrist views can guide alignment. Possible open-gripper link6 targets are left [-0.40, -0.08, 1.04] m and right [0.27, -0.17, 1.04] m. The left displacement would be about 0.29 m, exceeding the 0.25 m target limit, so I need an intermediate move, perhaps only 0.2 m. The orientation change is about 1.57 rad, exceeding the 1 rad limit, so I also need intermediate quaternions obtained through spherical interpolation. I could rotate at the current positions with a slight movement in y and use two actions. Each control step permits at most 0.1 rad and 0.02 m; 15 steps could achieve the full rotation provided each action’s target stays within 1 rad. One possible split is 60° followed by 30°, while moving slightly toward the objects. For the downward orientation, I will use quaternion [√0.5, 0, √0.5, 0] in wxyz order, which points local X downward and leaves local Y along world Y. The starting quaternion is [√0.5, 0, 0, √0.5]. I estimate the angular change as 90°, with spherical interpolation at t = 0.5 giving a 45° intermediate orientation within the limit. For the first intermediate positions, the left arm can move from [-0.3, -0.352, 0.9215] m to [-0.36, -0.23, 1.02] m, a distance of 0.177 m, and the right from [0.3, -0.352, 0.9215] m to [0.25, -0.23, 1.02] m, a distance of 0.163 m. I should consider the fingers’ swept paths during this rotation. The left fingers initially point along +Y and will turn toward -Z; at z = 1.02 m, there is about 0.27 m of clearance above the assumed tabletop. The right chocolate bar is near x = 0.39 m, y = -0.19 m, while the right gripper starts near x = 0.3 m. Could the rotating fingers contact it? With the right link6 moving from [0.3, -0.352, 0.9215] m to [0.25, -0.23, 1.02] m and a fingertip radius of about 0.158 m, the initially forward-pointing tips would reach approximately y = -0.07 m at z = 1.02 m, above the bar on the assumed z = 0.75 m tabletop. This appears safe. The left elephant’s top may be around z = 0.82 m, leaving about 0.2 m of clearance. I will compute the exact halfway quaternion with SciPy before issuing the motion.

I’ll raise both grippers and use the computed intermediate orientation to turn them toward a top-down grasp view. This is intended to maintain clearance from the toys and chocolate bars while improving the wrist-camera view for alignment.

The relative rotation to a top-down orientation with yaw −45° is 148.6°, rather than 120°. With delta = −135° and c = −0.707, the formula gives acos((−0.707 − 1)/2) = acos(−0.8535) = 148.6°. This orientation is harder to reach from the current pose and requires three actions. I could initially use yaw +45° for the right arm as well, then rotate it 90° about world Z to yaw −45°. However, if the right bar’s long axis runs along world +X, −Y, the yaw +45° closing direction, −X, +Y, would be parallel to it. The dot product is −0.707 − 0.707 = −1.414, so that is not an appropriate grasp direction without a later adjustment. Another option is top-down yaw 90°, closing along X. For a bar along +X, −Y, that closing direction has a component of 0.707 along the bar. It is not fully perpendicular, but perhaps the open fingers could still grasp across its short width. Yaw 0°, closing along Y, seems better: its dot product with the bar direction is −0.707, and the total orientation change is only 120°. The gripper would be at 45° to the bar, which may be adequate for both the bar and the right wooden toy’s rabbit body. I will choose yaw +45° for the left arm and yaw 0° for the right. The right arm’s final top-down quaternion is Ry(90°), or [0.707, 0, 0.707, 0] in wxyz order, with its 120° turn split into three actions. Using yaw +45° for both arms would take two initial actions, followed by two more for the right arm’s later 90° turn: 90° is 1.571 rad, so it exceeds the 1 rad limit for one action. Choosing yaw 0° for the right may avoid that later adjustment. For the first action, I will interpolate 45% of the way toward each final orientation. That gives a left orientation change of 0.773 rad and a right change of 54°, or 0.942 rad, within the limit. The planned link6 positions remain left [−0.36, −0.23, 1.02] m and right [0.25, −0.23, 1.02] m. I previously computed the 0.45 interpolation quaternions for yaw ±45°, not yaw 0°, so I need to compute the right arm’s quaternion before issuing the motion.

The previous target was rejected without execution, so both arms are still at their initial poses. I’ll use the smaller intermediate rotations while raising both open grippers toward a clear hover position, continuing the turn toward top-down grasp alignment.

Both arms moved only a small fraction of the way toward their targets during the 12 steps, which I attribute to the damped IK and joint-increment scaling. Reaching the targets may require several calls. The quaternion interpolation appears to have progressed only about 0.2 rather than the intended 0.45. The expected target rotation was 54°; how far has the actual orientation turned? The left arm’s current wxyz quaternion is [0.739, -0.061, 0.143, 0.655], compared with the initial [0.707, 0, 0, 0.707], suggesting perhaps 21° of rotation. Each step allows at most 0.1 rad, but joint scaling limits the actual progress. The orientation targets remain within the allowed distance from the measured poses, and about 0.12 m of position error remains. I’ll continue toward the same targets for another 15 steps to reach the hover poses.

A red object is now visible near high-camera pixel (150, 287), although I did not see it initially. At first it looks like a red apple with yellow patches. Could it have appeared because of a collision, or could I have knocked a hidden object? It might instead be a tilted red bell pepper, which would fit the instruction to sort pepper objects. In the step-12 image, there may have been a small black-and-red underside near the left gripper at approximately (150, 290). At step 27, it looks clearly like a red bell pepper near (149, 286). I conclude that it was initially occluded by the left gripper and has now been revealed. That makes seven objects: three wooden toys, two peppers, green and red, and two chocolate bars. I should put the red pepper into the middle basket as well. Both arms are now near their intermediate poses. I want to finish the left arm’s top-down orientation at yaw 45° and the right arm’s at yaw 0°. The left arm’s remaining rotation is approximately 55% × 98.4° = 54°, or 0.943 rad, within the 1 rad limit. The right arm’s remaining rotation is 55% × 120° = 66°, or 1.152 rad, so I cannot target its final orientation directly. Its current interpolation fraction is about t = 0.45. I should next target t = 0.8, a difference of 42°, or 0.733 rad, and finish the rotation afterward. For the left hover position, I initially consider an estimate of [-0.40, -0.07, 1.00] m above the elephant. The current measured link6 position is [-0.359, -0.231, 1.019] m, and the elephant appears centered near wrist-image pixel (280, 330), with the gripper jaws on its sides. With a top-down orientation, local +X points along world -Z, so the fingertip center would be at link6 z minus approximately 0.1576 m. If the object’s top is around z = 0.82 m, perhaps link6 should be around z = 0.96 m for grasping. At link6 z = 0.958 m, the fingertips would be at z = 0.80 m. Should the contact instead be at the object’s mid-body, around z = 0.79 m? I should decide after inspecting the next view. In a top-down pose, link6 x and y should correspond to the gripper center, although there may be local Y or Z offsets in the finger geometry. I should refine the elephant’s x and y position from the left wrist image once the gripper points downward. For now, I could move toward [-0.39, -0.13, 1.03] m while completing the orientation. The displacement from the current left position is about 0.103 m and appears safe. For the right arm, I initially consider moving toward the rabbit at x = 0.26 m, y = -0.20 m. Its current position, [0.255, -0.235, 1.014] m, is already near the rabbit, but the wrist camera shows only the basket. Is that because it still looks toward +Y? The initial wrist camera looks toward +Y and downward, broadly along the fingers’ forward direction. Perhaps its optical forward direction follows local +X with an offset. At the intermediate orientation, the basket remains visible and the rabbit is absent; after the final downward rotation, I expect to see the table below. Using the high-camera rabbit center near (449, 288) and an assumed z = 0.75 m gives approximately x = 0.263 m, y = -0.203 m. If the body center is instead at z = 0.78 m, its y coordinate may be around -0.216 m. The current right-arm position is close to these estimates. I should reconsider the left elephant’s position using its height. Its body center near high-camera pixel (142, 226), at z = 0.79 m, might give x = -0.423 m; did the earlier z = 0.75 m estimate give -0.418 m? The earlier calculation for pixel (141, 228) at z = 0.75 m gave [-0.41, -0.056] m in x and y. At z = 0.79 m, perhaps that becomes [-0.38, -0.081] m. As the assumed height increases, x becomes less negative and y more negative. With the body center at about z = 0.80 m, I estimate x ≈ -0.37 m and y ≈ -0.09 m. The feet near pixel (139, 246), at z = 0.75 m, give approximately x = -0.39 m, y = -0.103 m. Thus the base center may be around [-0.39, -0.10] m, and I estimate the body center as [-0.385, -0.09, 0.79] m. I will use the left hover target [-0.39, -0.10, 1.03] m. Once the fingers point down, the elephant should appear centered in the wrist view if these x and y estimates are correct. For the rabbit, the base center near high-camera pixel (449, 295), at z = 0.75 m, may give x = 0.263 m, y = -0.215 m. The earlier center estimate at (449, 289) gave [0.263, -0.203] m. At a body-center height of z = 0.78 m, y may be around -0.22 m. The feet near (447, 299) give approximately x = 0.26 m, y = -0.222 m. I therefore estimate the rabbit’s position as [0.26, -0.215, 0.77] m and choose the right hover target [0.26, -0.215, 1.03] m. I plan to finish the left orientation and move the right to its t = 0.8 intermediate orientation. First, I need to compute the right arm’s t = 0.8 quaternion along the interpolation toward the yaw-0° top-down pose.

Both arms are now near their intermediate hover poses. I’ll finish the left gripper’s downward alignment over the left elephant and advance the right gripper’s rotation over the rabbit, using their estimated positions while maintaining clearance above the table.

In the left wrist view, the toy appears centered near pixel (365, 260), compared with the image center at (320, 240). The left fingers span approximately x = 0–125 pixels, and the right fingers begin around x = 520 pixels. The object spans approximately x = 310–421 pixels. Its actual grasp center may be near (365, 270), placing it about 45 pixels right of center and 30 pixels below. The camera’s optical center may be (320, 240), and the gripper midpoint may have x = 320 pixels, though its y coordinate is unclear. The fingers appear symmetric on either side. Once the downward orientation is complete, I should use the camera calibration to adjust the left link6 position. The rabbit in the right wrist view appears centered near (430, 370), well below and right of (320, 240). However, the right gripper has not reached its final orientation, and the camera view changes as it rotates. I should finish the orientation before assessing alignment. The left arm’s current wxyz quaternion is [0.708, -0.225, 0.547, 0.385], while its target is approximately [0.653, -0.271, 0.653, 0.271]. I estimate that perhaps 25° of rotation remains. The right arm is near interpolation fraction t = 0.8, with about 24° remaining to its final orientation. I’ll continue toward the final orientations using the same position targets, perhaps for 8 steps.

Both grippers are now oriented downward. In the left wrist image, the elephant appears centered near pixel (350, 100), above the gripper center. I estimate the gripper center’s x coordinate as 320 pixels, but I am unsure of its y coordinate—perhaps 320 pixels. The rabbit in the right wrist image is near (328, 210), close to the center. I need to map these pixel offsets to world positions for grasp alignment. I’ll read the current wrist-camera calibration to inspect the camera centers and axes. With the known link6 poses and an estimated object height z, I can use the wrist images to estimate each object’s world x and y coordinates. The camera extrinsics are fixed relative to the grippers. I’ll also project points along each gripper axis, holding x and y equal to the corresponding link6 coordinates and varying z, to see where the grasp center lies in the image. Even with the grippers pointing downward, the cameras’ optical axes may not be exactly vertical; they may have a fixed offset. I’ll inspect the extrinsics before deciding how to adjust alignment.

The left wrist camera’s optical forward direction is tilted 30° from vertical. Its third rotation-matrix row is approximately [-0.3535, -0.3535, -0.866], so it looks toward negative world X and Y as well as downward, while the fingers extend along world -Z. This seems consistent with a camera fixed to link6: initially its forward direction was [0, 0.866, -0.5], or 0.866 local X minus 0.5 local Z, looking 30° downward while the fingers pointed along +Y. In the top-down pose with yaw 45°, local X is world -Z and local Z is [0.707, 0.707, 0]. The camera’s forward direction is therefore 0.866 times world -Z minus 0.5 times [0.707, 0.707, 0], giving [-0.3535, -0.3535, -0.866]. The left camera center’s offset from link6 is approximately [0.0360, 0.0360, -0.08483] m. The horizontal part may correspond to about 0.05 m along local Z: 0.05 times [0.707, 0.707] gives [0.0354, 0.0354] m. I initially wonder whether the vertical part is -0.0848 m along local X, but the initial camera-center offset was approximately [0, 0.08484, 0.05094] m, corresponding to +0.08484 m along local X and +0.05094 m along local Z. Thus the camera is about 8.5 cm forward of link6 and 5.1 cm above it in the initial pose. With the fingers pointing down, the camera is about 8.5 cm below link6 and 5 cm to the side. Its optical axis is tilted 30° relative to the finger direction; perhaps it is aimed toward the fingertips. At an object height of z = 0.8 m, the point directly below link6 projects near image v = 165 pixels rather than the image center at v = 240 pixels. At the fingertip depth, z = link6 z - 0.1576 m = 0.8724 m, the gripper-axis point projects near v = 275 pixels. An object at z = 0.8 m directly under that axis therefore appears higher in the image because of the camera’s tilt and offset. I should align the object using the projected grasp point at the intended contact height rather than simply centering it in the image. The actual contact location between the fingers might be at local X = 0.12 m. The fingers extend as far as 0.1576 m, but the contact pads may lie around local X = 0.10–0.14 m. If contact is at local X = 0.13 m, its current height would be link6 z - 0.13 m = 0.90 m, while an object at z = 0.8 m is below the fingertips. If link6 descends to z = 0.94 m, the fingertips would be at z = 0.782 m and the object’s grasp center might be at z = 0.80 m. I still need to determine the desired image point from the intended object contact height and link6 pose. With the fingers pointing straight down, link6’s X and Y coordinates should match the object’s grasp-center coordinates, assuming there are no local Y or Z offsets at the finger roots. Its height should be the object contact height plus the contact reach, perhaps 0.12–0.14 m. I can estimate the object’s world X and Y coordinates by intersecting its camera ray with an assumed height plane. In the left image, the elephant’s back center may be near pixel (351, 105), and its head is near (378, 195). A grasp across the body might use the back center near (346, 90) or the whole-body center near (350, 125). The current link6 axis projects to approximately (320, 165) at z = 0.80 m, whereas the back center appears near v = 100 pixels, suggesting an offset. I can invert the ray through pixel (350, 120) at z = 0.80 m to estimate its world X and Y coordinates, and consider assumed heights of 0.78, 0.80, and 0.82 m. The right rabbit’s body center appears near pixel (330, 205), with an estimated height of z = 0.78 m. I’ll map candidate body points from both wrist views to world coordinates before adjusting the grasp alignment.

The right rabbit may be at x ≈ 0.25 m if the observed point is at z = 0.81 m, close to the initial high-camera estimate of x = 0.26 m. The left elephant appears closer to x = -0.37 m than -0.39 m. I still need a more precise estimate of its top height. Perhaps it is 0.08 m tall, with its feet on the assumed z = 0.75 m tabletop and its back at z = 0.83 m. The side-body grasp center might be at z = 0.79 m. A pixel on the back corresponds to the top surface, although its world x and y coordinates should be roughly those of the body center. Intersecting the wrist-camera ray through pixel (350, 110) with z = 0.83 m gives approximately x = -0.365 m, y = -0.087 m. The earlier high-camera estimate of the elephant’s base was around x = -0.39 m, y = -0.10 m. I attribute this difference to viewing the object’s top, but I should triangulate a corresponding feature between the high and wrist views to locate a 3D point more precisely. The distinctive pattern on the elephant’s back may be near pixel (142, 222) in the initial high-camera image and (347, 96) in the current left wrist image. It should still occupy the same location in the current high-camera view. I can intersect the wrist ray at candidate heights, project those world points into the high image, and see which height matches the corresponding feature. This would triangulate using one matched feature. I need to identify that correspondence accurately. The circular medallion on the decorative back may be centered near wrist pixel (347, 100) and high-camera pixel (143, 222). I’ll generate enlarged views of the elephant from the current high and left wrist cameras, with coordinate grids and axis ticks, to inspect these tentative feature locations.

I’ll inspect the gridded high-camera and left wrist crops to identify a matching feature on the elephant’s back. This should help refine its estimated position and height for grasp alignment.

The medallion’s center appears near pixel (350, 78) in the left wrist image, but which point corresponds to it in the high-camera image? The decorative pattern may be near (143, 216), with its center likely around (144, 218). I’ll try triangulating with wrist pixel (350, 78) and high-camera pixel (143, 218), using a least-squares fit between the two camera rays.

The triangulation puts the back medallion at approximately [-0.36, -0.082, 0.825] m in world coordinates. The elephant’s body center may be around x = -0.37 m, y = -0.09 m, z = 0.79 m, so my earlier x-y target of [-0.39, -0.1] m was off by about 0.03 m. For a stable top-down grasp, I want the fingers to contact opposite sides of the mid-body. The gripper’s local Y closing direction has world x-y components [-0.707, 0.707]. Does the elephant’s long axis run vertically in the wrist image? Its body appears vertical, with the head at the bottom. The camera’s right axis is the rotation-matrix row (0.707, -0.707, 0), so the horizontal projection is 0.707x - 0.707y. Its vertical axis is (-0.612, -0.612, 0.5); at constant z, the corresponding world x-y direction is [-0.612, -0.612], with both components pointing negative. The elephant’s long axis therefore seems to run along world (+X, +Y), perhaps from the head near [-0.39, -0.12] m to the rear near [-0.36, -0.08] m. The high-camera view, where the head is at the lower left and the rear at the upper right, supports that interpretation. My closing direction [-0.707, +0.707] is exactly perpendicular to that long axis, which should allow a grasp across the body. The body center between the rear and head might be at [-0.375, -0.097] m, with side contact at the body midpoint. Alternatively, I could target the medallion’s x-y position, [-0.36, -0.082] m, as the back center. With the rear around [-0.35, -0.07] m and the head around [-0.39, -0.12] m, the medallion seems to lie near the body center. The body is approximately 0.09 m long along the diagonal, with its center at the medallion. I might use an x-y target of [-0.366, -0.09] m. Before deciding, I should compare the feet’s high-camera positions to estimate the base center. The feet appear near pixels (137, 244) and (159, 238). I’ll invert their camera rays using the assumed tabletop height z = 0.75 m.

I estimate the elephant’s foot-center average at world x-y coordinates [-0.386, -0.10] m and its rear medallion at [-0.36, -0.082] m. Its body center may be around [-0.375, -0.091] m, so I will use an x-y grasp target of [-0.375, -0.092] m. I still need to choose the link6 height. The assumed tabletop is at z = 0.75 m, the toy’s top is around z = 0.826 m, and its mid-body side is around z = 0.785–0.80 m. The fingers extend along local X to 0.1576 m, but contact may occur nearer local X = 0.12 m. I should understand where the fingertips appear in the wrist view before deciding how far to lower the gripper. With the gripper pointing down, the black fingers appear as large trapezoids extending from the outer bottom edges toward the middle of the image. At the current link6 height of z = 1.03 m, their tips are at z = 0.8724 m, clear of the assumed z = 0.75 m tabletop. In the left wrist image from observation 52, the left finger’s upper edge appears to run from approximately (0, 218) through (110, 257), then toward (126, 322). The right finger begins near (640, 198) and extends toward (530, 256). Are the tips the upper inner corners? In the initial wrist view, the fingers extended along world +Y, away from the camera, and the camera may have been viewing their sides from behind. In the downward pose, they extend down and away from the camera, with their image tips perhaps near y = 220 pixels. The inner corners may be around (125, 260) and (516, 260), putting the point between them near (320, 260). My computed gripper-axis projection at fingertip height z = 0.8724 m was v = 275 pixels, which seems consistent. An object at fingertip height should therefore appear near (320, 275). To put the fingertips exactly at a mid-body height of z = 0.79 m, I could set link6 z = 0.9476 m. However, the pads extend proximally along local X, so they could contact the body at z = 0.80 m with link6 at z = 0.94 m and the tips at z = 0.7824 m. With the elephant’s feet on the z = 0.75 m table, a tip height of about 0.782 m leaves 0.032 m of clearance. At link6 z = 0.94 m and a back height of 0.826 m, I estimate that the fingers reach 0.032 m below the back’s top, enough to grip its sides. I will use z = 0.94 m as the eventual left grasp target. The rabbit’s top may be at z = 0.82 m, or its body top may be closer to z = 0.80 m. It appears about 0.06 m tall. A link6 target of z = 0.93 or 0.94 m might work, although its small body may have a center at z = 0.775 m and a back or head top at z = 0.805 m. To grasp the body with fingertips at z = 0.76 m, I could use link6 z = 0.918 m. The pad length remains uncertain, so I can descend gradually and inspect the alignment. First I will align both grippers in x and y at a safe height, then initially lower each to link6 z = 0.96 m. Before that, I should refine the rabbit’s position. The right gripper is currently at x-y coordinates [0.26, -0.215] m. The wrist-based estimate at an assumed z = 0.79 m placed the rabbit near [0.239, -0.219] m; if its top surface is at z = 0.80 m, its x coordinate may instead be about 0.242 m. The initial high-camera base estimate was x = 0.263 m, so I should triangulate a specific feature. The rabbit’s body center appears near pixel (329, 213) in the current right wrist image and (449, 288) in the high-camera image. Its round head may be near high-camera pixel (444, 289), but I am unsure of the body correspondence. I’ll enlarge both views with coordinate grids before fitting the matching camera rays by least squares.

I’ll inspect the gridded high-camera and right wrist crops to identify matching features on the rabbit. This will help refine its estimated center and height before lowering the gripper for a grasp.

The rabbit appears to be a yellow wooden toy; could it be lying down? Its eye is near pixel (440, 290) on the left side in the high-camera image, and the black eye is near (379, 231) on the right side in the right wrist image. These appear to be the same feature, so I’ll triangulate that pair. The ear tip near (468, 282) in the high-camera image might correspond to (296, 280) in the wrist image. The extension on the right in the high view appears to be the same ear as the lower extension in the wrist view; perhaps (298, 281) is a better wrist estimate. The tail may correspond to high-camera pixel (451, 274) and wrist pixel (289, 139). I’ll use least-squares fits between the camera rays to test these candidate correspondences.

Some of the rabbit feature correspondences seem wrong. The black point at high-camera pixel (440, 290) may be the left eye, while the point at wrist pixel (379, 231) could be on the right side. Their triangulation error of about 0.018 m is large; is that due to a wrong match or the calibration? The body-center match has an error of about 0.0016 m and looks like a good approximation. It places the rabbit center near [0.236, -0.221, 0.795] m, consistent with the wrist-ray estimate at z = 0.79 m. My earlier high-camera estimate assumed z = 0.75 m and gave x = 0.263 m, y = -0.20 m; using a top height of 0.795 m instead puts it near x = 0.236 m, y = -0.22 m. The right gripper’s current x = 0.26 m is therefore about 2.4 cm too positive, and its y = -0.215 m is about 6 mm too positive. I could correct its x-y position to [0.238, -0.22] m. The left elephant’s medallion triangulation looks good. I should perhaps check whether the tabletop really is at z = 0.75 m using the rabbit’s foot positions in the high-camera view. Taking its feet to be at z = 0.75 m, the triangulated body-top height of 0.795 m gives a plausible height of 0.045 m. The left elephant’s body top is around z = 0.825 m, and its base center may be near x = -0.375 m, y = -0.095 m. I will use a left grasp x-y position of [-0.375, -0.092] m and a right body-grasp position of [0.239, -0.221] m. I could lower the left link6 to [-0.375, -0.092, 0.965] m, a descent of 0.065 m, and the right to [0.239, -0.221, 0.96] m, a descent of 0.07 m. Perhaps that would take 6 steps, or 4 with a maximum positional increment of 0.02 m per step. Near contact, though, I should use only 1–3 steps. Since the grippers are still high, I could use 5 steps for the clear approach and then 2 for the final descent. For now, I will descend only partway to z = 0.98 m and inspect the closer wrist views for stable alignment. The targets will be left [-0.375, -0.092, 0.98] m and right [0.239, -0.221, 0.98] m, with both grippers open and their orientations unchanged. I considered 5 steps for this partial descent, then 4 steps before inspecting again.

The elephant’s back center appears near pixel (335, 240), and the rabbit’s center near (320, 225). The inner top corners of the gripper fingertips appear at (126, 257) and (515, 257). The elephant’s medallion may be the body point to align for grasping, near (335, 240), but I am unsure of the intended grasp point’s vertical image coordinate between the fingers. Perhaps it is near (320, 275). At link6 z = 0.981 m, the fingertips are at z = 0.8234 m, approximately level with the elephant’s estimated top at z = 0.825 m, so they are not yet positioned for a grasp. The medallion appears close to pixel (335, 230), perhaps (335, 234). To grasp lower on the body, I need to descend toward link6 z = 0.94 m. Would the object then appear higher or lower in the wrist image? The camera moves down with link6, making the object relatively higher and magnifying its projection, but I am unsure how the camera tilt affects its vertical pixel coordinate. I should check the expected projection of the fixed medallion estimate at [-0.36, -0.082, 0.826] m for the current left pose and for link6 z = 0.94 m with x and y unchanged. First, I’ll use the current calibration to project the estimated medallion and rabbit-center positions into their wrist images and compare them with the observed locations.

The medallion appears to be near pixel (337, 218), though that location is approximate, and the rabbit center is at (319, 228). These agree well with the projections, giving me confidence in the calibration and triangulated positions. The elephant’s back medallion has estimated world x-y coordinates [-0.36, -0.082] m. The left link6 x-y position is [-0.375, -0.092] m, which is 15 mm farther in negative X and 10 mm farther in negative Y. The medallion is offset by about 20 mm along the toy’s long axis toward (+X, +Y). Perhaps the grasp should remain at the body midpoint, [-0.375, -0.092] m. Where would that center project at z = 0.79 m in the current view? The body seems to span from the medallion at [-0.36, -0.082, 0.826] m to the head, perhaps at [-0.397, -0.119, 0.79] m. The estimated midpoint is [-0.3785, -0.1005, 0.808] m, close to the current left x-y position, so I will keep that alignment. The rabbit center is estimated at [0.236, -0.2206, 0.795] m, although I am unsure whether that point is on the top of its head. The current right x-y position, [0.24, -0.221] m, aligns closely with it. I can proceed with descent and then closure. For the elephant, I estimate the body top at z = 0.826 m, the tabletop at z = 0.75 m, and the body midpoint at z = 0.788 m. I want side contact around z = 0.785–0.80 m. With a finger length of 0.1576 m, a link6 height of z = 0.945 m puts the tips at z = 0.7874 m. For the rabbit, the body top is around z = 0.795 m, the table is at z = 0.75 m, and the midpoint is at z = 0.7725 m. A link6 height of z = 0.93 m would put its fingertips at z = 0.7724 m. The open fingers could still strike ears or a head during descent if the gap is too narrow. The opening along local Y may be about 0.1 m. In the images, the gap appears to be about 390 pixels at the relevant depth, compared with a projected toy width of about 170 pixels. The elephant’s decorative body spans image x = 245–445, about 200 pixels, while the inner finger gap runs from x = 125 to 515, about 390 pixels. That appears sufficient. I will lower the left link6 to z = 0.945 m and the right to z = 0.935 m, giving the right fingertips a height of z = 0.7774 m. The planned descents are 0.036 m and 0.046 m. With a maximum positional increment of 0.02 m per step, I expect to need three steps, though the robot dynamics may limit arrival. I will keep both grippers open, use three steps, and inspect the next observation before closing.

The left link6 has reached z = 0.947 m, close to its target of 0.945 m. The right is only at z = 0.95 m rather than 0.935 m, perhaps because the three steps and joint constraints limited its progress. The toys appear much larger in the wrist views. The elephant’s body fills the left view, but it seems to fit between the fingers: their inner edges are near image x = 125 and x = 515 pixels, while the elephant’s width may be about 260 pixels. The rabbit occupies roughly x = 230–400 pixels in the right view, also between the fingers at x = 125 and x = 515 pixels. I could lower the right arm another 0.015 m to z = 0.935 m; the left target of z = 0.945 m may be adequate. Since the cameras are fixed to the grippers, the fingers remain at the same image positions, so their appearance alone does not establish contact. I need to assess the objects’ positions and sizes relative to them. At the left link6 height of 0.947 m, the fingertips are at z = 0.7894 m, the intended mid-body height. Should I close now? I should check alignment first. The elephant’s medallion appears near pixel (352, 405), rather than (320, 275). Could this mean the object is below the fingertips? As the camera descended, the top of the object moved much lower in the image, with the medallion near y = 400 pixels. A surface at fingertip height z = 0.789 m should project near v = 275 pixels if its x and y coordinates are centered beneath the gripper. However, the medallion is at z = 0.826 m, above the fingertips, and the camera is at about z = 0.862 m. I am unsure whether its proximity to the camera or its x-y offset explains its apparent position near (350, 400). I’ll project the estimated medallion and object-center positions using the current calibration before deciding on closure.

The medallion’s predicted vertical image coordinate is about y = 329 pixels, but I may be seeing it near y = 385 pixels, perhaps at (342, 390). I need a gridded view to check my reading. In observation 60’s left wrist image, I tentatively see the elephant’s head near (350, 90) at the top and the medallion near (350, 395) at the bottom, though I may be misidentifying part of its back. In observation 57, I estimated the medallion at (335, 240), while its predicted projection was (339, 208), a vertical discrepancy of 32 pixels. Perhaps the decorative circle was actually centered at (335, 236), still below the predicted y = 208. The triangulated world point used wrist pixel (350, 78) from observation 52; perhaps the actual medallion center there was (350, 85). That seems like a small error—could it explain a discrepancy growing to about 30 pixels? In observation 60, another possible reading is (345, 388), which would differ from the predicted y = 329 by 59 pixels. Could the elephant have moved during descent? The open left gripper descended around it and might have pushed it. In the high-camera image, its initial location appeared near (140, 228), and in observation 60 it may be near (143, 232), suggesting a slight shift. However, another reading of observation 60 places it near (140, 231), which would not be a large change. It was partly occluded in observation 57. I should inspect a high-camera crop to check for displacement. Could rounding of the wrist orientation quaternion explain the discrepancy? The camera calibration is exact, so that does not seem to be the explanation. The triangulated point had an approximate error of 2 mm and should project consistently across views and time if the object remains static. Perhaps pixel (350, 78) in observation 52 was not the medallion center, although I thought it was the center of the circular pattern. Alternatively, the medallion in observation 57 may indeed have been near (339, 208): the decorative back seems to extend from y = 90 to y = 320, with the circle around y = 220. In observation 60, the circle might instead be near (343, 373). I’ll prepare a gridded view of the current wrist images to inspect these uncertain feature locations before closing the grippers.

I’ll inspect the gridded wrist-camera crops to clarify the elephant medallion’s apparent mismatch with its predicted projection and check both grasp areas. This should help resolve the alignment uncertainty before closing the grippers.

The medallion center now appears to be at wrist-image pixel (345, 393), about 65 pixels from the predicted vertical position. Something is off. Could the elephant have moved or changed orientation? The medallion now appears near the head, whereas in observation 52 it was near the upper body at (350, 78), approximately y = 80 pixels. After alignment and descent, I estimated it at (335, 230) in observation 57 and around (345, 390) in observation 60. The predicted y coordinate was 208 pixels in observation 57 versus an observed value of perhaps 230, a discrepancy of 22 pixels. In observation 60, the prediction was y = 329 versus the current reading of 393, a discrepancy of 64 pixels. Could the camera calibration be inconsistent? The EEF poses, calibration, and images should correspond exactly. Perhaps the world point [-0.36, -0.082, 0.826] m triangulated from observation 52 was a different feature higher on the back rather than the medallion center. However, the circular pattern in that gridded wrist view did appear centered near x = 350, y = 80 pixels. I should also verify observation 57: the circle may have been at (340, 230), or perhaps (335, 225). Could the estimated point height be wrong? If its actual z coordinate were 0.80 m rather than 0.826 m, would the projected y coordinate decrease? At the same world x and y, z = 0.826 m projects to y = 329 pixels, while z = 0.79 m might project to about y = 257. To reach y = 393, I estimate that z would need to be about 0.856 m, higher rather than lower. That would put the toy’s top at z = 0.856 m. The earlier triangulation might have produced z = 0.826 m because I chose the wrong high-camera pixel; a point at z = 0.856 m with the same world x and y would project elsewhere in the high view. I’ll triangulate the medallion again using the current wrist and high-camera views, and compare the estimates across observations. Its high-camera location may still be around (143, 222), and its current wrist location appears to be (345, 393). This should help investigate whether the object moved or the earlier feature match was wrong.

The current triangulation gives nearly the same estimated medallion position, P ≈ [-0.36, -0.083, 0.83] m. Why did projecting the earlier estimate give pixel (351, 329), rather than the observed wrist-image location (345, 393)? The triangulation uses the current high-camera and wrist-camera rays. If P is computed from the wrist ray through (345, 393), I would expect its projection to return (345, 393), within the fitting error. The earlier point [-0.36, -0.082, 0.826] m projected to y = 329 pixels; the new estimate has a similar z coordinate, 0.8286 m, so I would still expect roughly y = 333 pixels. Could there be an inconsistency in my projection code? The expression T @ [*p, 1] appears valid, including the starred list syntax, and I am reading the recorded calibration. For triangulation, I compute the world-frame ray as R.T @ invK @ [u, v, 1] and the camera center as C = -R.T @ t. For projection, I transform the point into camera coordinates c, then compute K @ c[:3] and divide by c[2]. These should be inverse operations. Could the least-squares calculation have a sign error? With A = [r1, -r2], solving against C2 - C1 corresponds to C1 + a r1 = C2 + b r2, or a r1 - b r2 = C2 - C1. Thus P2 = C2 + b r2 appears correct. I have not checked whether a and b are positive. If the rays are nearly parallel and the feature match is wrong, could the fitted intersection lie behind one camera with negative depth? I should inspect a and b, the fitted points on both rays, and their projections before proceeding.

The fitted distance b along the wrist-camera ray is only 0.049 m. Is the object really just about 5 cm from the camera? The camera center is at z = 0.862 m and the fitted point is near z = 0.828 m, a vertical difference of 3.4 cm, with an x-y separation of roughly 0.04 m. A total distance around 0.06 m seems plausible. The averaged triangulation point projects to (368, 358), rather than the observed (345, 393), because of the mismatch with the high-camera ray. P2, the fitted point on the wrist ray, projects exactly to (345, 393). I estimate that the roughly 8 mm difference between the average and P2 causes a 35-pixel shift. The earlier point [-0.36, -0.082, 0.826] m differs from the current P2, approximately [-0.364, -0.0847, 0.8315] m, by about 7 mm, yet their predicted vertical coordinates differ from 329 to 393 pixels. A 64-pixel difference seems plausible at this short distance: with a depth of 5 cm and focal length of 397 pixels, a 7 mm error could produce about 56 pixels of displacement. The projection is very sensitive this close to the camera, so errors of a few millimeters in the initial triangulation can explain the large image discrepancy. The left camera is at z = 0.8624 m while link6 is at z = 0.947 m, an offset of 0.0846 m. With the toy’s top around z = 0.83 m, the camera is only 3.2 cm above it. The fingertips are at z = 0.7894 m, so the gripper appears positioned around the body. The estimated grasp center, [-0.375, -0.092, 0.79] m, projects to (321, 276). It seems to lie near the upper portion of the body, around (320, 276) within the decorative pattern. The fingertips’ inner edges are near image x = 125 and 515 pixels at y = 260 pixels. The proposed contact point at (321, 276) is at fingertip height, and the body appears to occupy that location. I will close the left gripper while holding its pose. The right link6 is at z = 0.95 m and its camera is at z = 0.8654 m. The rabbit’s top is around z = 0.795 m, about 7 cm below the camera. Its intended mid-body height of z = 0.775 m projects to y = 237 pixels, between the fingers. The right fingertips are currently at z = 0.7924 m, approximately level with the top surface at z = 0.795 m. I need to lower link6 to z = 0.935 m so the tips reach approximately z = 0.777 m. I considered lowering the right arm for two steps while closing the left gripper. Two steps might only partially close the gripper because the opening command is interpolated; even three steps may not fully close it, though they may establish a grip. The left fingertips are around z = 0.789 m, 39 mm above the assumed tabletop, which appears to leave clearance. The elephant’s body width at z = 0.79 m may be about 0.05 m, so I expect the closing fingers to grasp it. I will use three steps for the simultaneous left closure and right descent, keeping the right gripper open.

The left fingers may be closing around the elephant’s body, but I am unsure where the left finger’s inner edge now lies or whether the elephant is firmly held. The right fingers are still open. The left opening command is currently 0.348, so it has not yet reached the fully closed command of 0. The object between the fingers may prevent further physical closure even as the command continues toward 0. I’ll hold both poses and spend three more steps continuing the left closure while closing the right gripper. Afterward, I plan to make a small test lift with both arms, using three steps, to check the grasps.

Both opening commands are around 0.34, which seems odd; should they have reached 0 after six closure steps? Perhaps the interpolated opening changes by about 0.108 per step. The change from 1 to 0.348 and then little further change to 0.34 might suggest that physical closure has been reached or that the object is preventing further closure. The observation reports the latest interpolated opening command, which can differ from the requested endpoint, so this is not necessarily the actual finger opening. Perhaps the native controller holds the command at a detected width; I am not sure. I’ll make a small test lift of 0.035 m, targeting left link6 z = 0.982 m and right link6 z = 0.970 m, with both orientations held steady and both grippers commanded closed. I’ll use three steps and check whether the toys move with the grippers.

The high-camera view appears to show both toys lifted. The elephant is near pixel (135, 225), compared with its previous position near (140, 235). The rabbit is near (449, 285), perhaps held above the table. It shifted relative to the fingers in the wrist view but remains between them, while the elephant looks securely held. I should raise both toys farther before transporting them over the basket rims. I estimate the tabletop at z = 0.75 m and the rims at z = 0.83–0.85 m. Are the objects’ bottoms roughly at the current fingertip height, around 0.82 m? For the left arm, link6 is at z = 0.98 m and the fingertips are around z = 0.822 m. The elephant’s bottom was originally at z = 0.75 m; after the 0.033 m lift, I estimate it at z = 0.783 m. With a rim at z = 0.85 m, I should raise it another 0.10–0.12 m. A link6 transport height of z = 1.10 m would put the fingertips around z = 0.942 m and the object’s bottom around z = 0.90 m, which seems sufficient. The right link6 is at z = 0.965 m, its fingertips around z = 0.807 m, and the rabbit’s bottom around z = 0.78 m. I should use z = 1.10 m for that arm too. I need to refine the basket centers. Is the left basket’s world x coordinate about -0.32 m? The white basket’s center appears near high-camera pixel (192, 177), perhaps at a rim height of z = 0.84 m, but I need its floor-center coordinates. Initially, its interior bottom appeared near (193, 193); intersecting that ray at z = 0.75 m gave x-y coordinates [-0.317, 0.049] m. In the current high view, the white basket spans approximately x = 127–254 and y = 141–212 pixels. Its interior bottom may be near (192, 190), at z = 0.75 m, although the basket floor could be raised to z = 0.76 m. I estimate its world center near x = -0.31 m, y = 0.05 m. The blue basket’s center near (320, 190) suggests x = 0 m, y = 0.05 m, and the red basket’s center near (450, 190) suggests x = 0.32 m, y = 0.05 m. Likely x-y centers are [-0.32, 0.06], [0, 0.06], and [0.32, 0.06] m. I should check these using projections and the basket corners. For the elephant, I could first target [-0.32, 0.06, 1.10] m, with its bottom around z = 0.90 m above the estimated 0.85 m rim, then lower link6 toward z = 0.97 m. I estimate the object-bottom offset as link6 z minus 0.197 m: at the original grasp height of z = 0.947 m, its bottom was at z = 0.75 m. At link6 z = 1.10 m, that gives a bottom height of z = 0.903 m. To rest it on a basket floor at z = 0.76 m would require link6 z = 0.957 m. The fingertips would then be around z = 0.799 m, below the rim, so they might collide with it. The hand body would remain above at z = 0.957 m, and the fingers could fit inside if there is enough clearance. Alternatively, releasing at link6 z = 0.99 m would put the elephant’s bottom around z = 0.803 m, allowing a roughly 4 cm drop into the basket. Since this is container placement, I need not lower it all the way to the floor. At link6 z = 1.03 m, its bottom would be around z = 0.833 m, just below the estimated rim, allowing a 0.07 m drop. The fingertips would remain around z = 0.872 m, above the rim, avoiding the need to insert them. My plan is to transport at link6 z = 1.10 m, move over the basket center, then lower to z = 1.02 m and release. I will verify containment afterward. For the rabbit, the original link6 height of z = 0.935 m and bottom height of z = 0.75 m give an estimated offset of 0.185 m. At link6 z = 1.10 m, its bottom would be at z = 0.915 m. Releasing at link6 z = 1.02 m would put its bottom around z = 0.835 m, below the estimated 0.85 m rim, with a 0.075 m drop to the floor. I plan to move the arms simultaneously toward the left and right baskets. From the left pose [-0.375, -0.092, 0.98] m to [-0.32, 0.06, 1.10] m, I estimate a distance of 0.198 m, within the 0.25 m target limit. From the right pose [0.239, -0.221, 0.965] m to [0.32, 0.06, 1.10] m, the distance is about 0.326 m, exceeding the limit. I should use an intermediate right target of [0.27, -0.05, 1.09] m, about 0.218 m away, then move to the basket. At that intermediate height, I estimate the rabbit’s bottom at z = 0.905 m, above the 0.85 m rim, as it moves from y = -0.22 m toward y = -0.05 m. The left arm would move toward the white basket at x = -0.32 m and the right toward the red basket at x = 0.32 m, keeping them separated; the blue basket between them is empty. The elephant’s estimated transport-bottom height of z = 0.903 m also appears to clear the rim. I could use 12 steps for the left basket target and right intermediate target, then inspect. Next, the right arm could move to [0.32, 0.06, 1.10] m while the left holds or begins descending. Waiting to release the left object until the right is aligned may be unnecessary. Perhaps the left basket target should instead have y = 0.07 m. Before moving, I’ll project candidate floor centers at z = 0.76 m into the high-camera image and compare them with the interiors, starting with [-0.32, 0.06, 0.76] m.

In the high-camera view, I estimate the interior bottom centers at pixels (193, 188) for the white basket, (320, 188) for the blue basket, and (450, 188) for the red basket. These suggest a world y coordinate of about 0.055 m. The white basket’s x coordinate may be -0.315 m, rather than my earlier estimate of -0.32 m. Its rim center appears near pixel (192, 171), and its bottom center may instead be near (192, 190). I wonder whether the candidate floor point [-0.315, 0.05, 0.76] m would project near image x = 190 pixels; I have not computed that projection. I’ll choose x-y centers of [-0.315, 0.06] m for the left basket, [0, 0.06] m for the middle basket, and [0.32, 0.06] m for the right basket. Reaching a basket at y = 0.06 m from the initial base y coordinate of -0.352 m involves a distance of 0.412 m along y, with a planned height of z = 1.1 m. The ARX arm’s reach may be about 0.55 m, so I expect the target will likely pass the precheck. I’ll proceed.

The left basket target failed the local IK precheck in the current orientation, perhaps because of a reach limit. Neither arm moved. Should I move the basket closer? The instructions allow moving a distant container to a nearby clear area, but I could first try changing the gripper orientation or choosing a target with a smaller y coordinate. The position error of about 76 mm is significant. Perhaps the arm is fully extended and cannot reach [−0.315, 0.06, 1.1] m with the gripper pointing downward. A lower approach height or different orientation might help. Could I place the object near the basket’s front edge at y = 0 or −0.02 m? Such a target might still fail, and the object must end up inside. Could I release it at y = −0.03 m if the front edge is around y = −0.03 m? I am unsure of the basket bounds. Its depth may be about 0.15 m; the front and back rims appear near high-camera image y coordinates of 211 and 141 pixels. I could derive the bounds assuming a rim height of z = 0.83 m. If the basket center is at y = 0.06 m and its depth is 0.15 m, its front edge would be at y = −0.015 m. I estimate that the object center would need to be at y ≥ 0 m to drop inside. From the left arm’s current y = −0.093 m, that would require about 0.09 m of forward movement rather than 0.15 m. A target at y = 0 m and z = 1.06 m might be reachable. Is the failed position caused by the height of z = 1.1 m combined with the forward distance? The arm’s maximum reach might be about 0.6 m. Its base may be around world x = ±0.3 m and y = −0.55 m, but I do not know the base position. The initial left link6 position was approximately [−0.3, −0.352, 0.92] m. Reaching the white basket at y = 0.06 m requires 0.412 m of forward movement, together with the height of z = 1.1 m. The local precheck could also be getting stuck from the current joints rather than establishing a global reach limit. I could try an intermediate pose at y = −0.02 m and z = 1.05 m, or a smaller move to [−0.34, −0.02, 1.06] m, about 0.118 m away. The right target’s precheck may not have been reported because the left failed first. Possible intermediate targets are left [−0.34, −0.02, 1.06] m and right [0.27, −0.05, 1.09] m, though the right target may also be too high. I could instead use z = 1.04 m for both intermediate targets. That would leave the objects’ bottoms around z = 0.84–0.85 m, near rim height, while still in front of the baskets. At y = −0.02 m, however, an object whose bottom is at z = 0.85 m might touch the front rim. It seems safer to raise both toys in place to link6 z = 1.08 m first, then move forward at that height. The left arm would rise from z = 0.98 m by 0.1 m, and the right from z = 0.965 m to 1.08 m. These vertical targets may be reachable. Could the downward orientation be causing a singular configuration? It passed at the current left height of z = 0.98 m, so a vertical raise may work. I will use eight steps to raise both arms to z = 1.08 m, keeping their horizontal alignment, orientations, and closed gripper commands.

Neither arm fully reached the target link6 height of z = 1.08 m: the left is at 1.062 m and the right at 1.051 m. I could continue toward the same targets for four more steps or move forward to intermediate approach poses. Could z = 1.08 m be near a singularity? I estimate the remaining position error as 0.018 m for each arm after eight steps; orientation or joint limits may have restricted progress. I’ll instead try intermediate link6 targets of [-0.34, -0.02, 1.06] m for the left arm and [0.27, -0.05, 1.05] m for the right, keeping their heights nearly unchanged or slightly lower. I estimate the target distances as 0.089 m for the left and 0.176 m for the right. These poses are likely reachable, so I’ll use 10 steps.

The left elephant may now be above the front-left part of the white basket. In the high-camera view, I estimate it near pixel (146, 178), while the basket spans x = 128–255 and y = 141–213 pixels, placing it near the left edge of the basket footprint. The rabbit appears near (466, 211), at the front-right of the red basket, which spans x = 385–511 and y = 140–213 pixels. The right arm reached only y = -0.11 m rather than its target of -0.05 m after 10 steps, leaving a 6 cm error along y. It needs to continue to y = -0.05 m or farther forward. I am uncertain about the elephant’s position relative to the left gripper. The left link6 is currently at [-0.342, -0.03, 1.056] m, compared with its initial grasp x coordinate of -0.375 m. If the object moved with the gripper, its body center might be near the current link6 x coordinate plus a 0.015 m offset. However, the elephant appears near image x = 145 pixels, which I tentatively associate with world x = -0.42 m. Would the current link6 position project there? At an estimated object-bottom height of z = 0.86 m, I would expect world x = -0.342 m to project nearer image x = 185 pixels, or perhaps 174 pixels, rather than 146. These are rough projection estimates that I have not computed exactly. The elephant may be held on the outer side of the gripper, or its center may differ from link6. At the initial grasp, link6 was at x-y coordinates [-0.375, -0.092] m, while I estimated the body center at [-0.36, -0.082] m, an offset of [+0.015, +0.010] m. Applying that offset now would put the object at approximately x = -0.327 m, y = -0.02 m. At z = 0.86 m, that might project near image x = 175 pixels, still not 146. Perhaps the feature near (144, 175) is its tail, or the object shifted in the gripper during transport and is now near world x = -0.39 m. I should verify its position using both wrist and high-camera views. Another tentative reading places the elephant near (142, 174), left of the basket center at image x = 192 pixels. The white basket’s left rim is near x = 127 pixels, and the elephant seems to span x = 122–163 pixels, possibly overlapping the rim or extending outside. Releasing now could leave it on the rim or outside the basket. I should shift the left object farther right, perhaps toward world x = -0.27 m. The original basket target had x = -0.315 m, but the left link6 is still at x = -0.342 m. One possibility is to move about 0.05 m right and 0.06 m forward toward [-0.29, 0.03, 1.06] m. The earlier target [-0.315, 0.06, 1.1] m failed, perhaps because of its z and y coordinates; a target at z = 1.04 m and y = 0.03 m might be reachable. I also considered a right target of [0.32, 0.03, 1.04] m, approximately 0.164 m from its current x-y position of [0.261, -0.11] m, and a simultaneous 12-step action toward left [-0.28, 0.03, 1.04] m and right [0.32, 0.02, 1.04] m. If the left precheck fails, though, neither arm moves. I could hold the left arm and move the right first, or use a nearer left intermediate target of [-0.30, 0.005, 1.04] m, about 0.056 m away, with the right target about 0.16 m away. Both might be reachable. Lowering the left link6 from z = 1.056 m to 1.04 m would put the elephant’s estimated bottom at z = 0.843 m, just below the estimated rim height of 0.85 m. Its bottom may currently be around z = 0.85 m. A slight descent could be acceptable once it is inside, but moving sideways at the lower height could strike the left rim. I will therefore retain a left transport height of z = 1.06 m until it is centered and use z = 1.05 m for the right arm. I will try left [-0.29, 0.02, 1.06] m and right [0.32, 0.02, 1.05] m for 12 steps, keeping both orientations steady and both grippers closed. I estimate these target distances as 0.077 m and 0.152 m, respectively, and think the left target may pass the precheck from the current configuration.

Both arms failed the local IK precheck even for relatively small targets. Perhaps they are near their joint limits when extended forward with the fingers pointing straight down. I could change the orientation to tilt the toys forward over the baskets, or move the baskets closer. Could I use the other arm? Both arms are currently holding toys. The wrists are around z = 1.05 m, and I want the objects inside baskets whose estimated centers are at y = 0.06 m. Perhaps link6 reach is limited because the bases are around y = -0.5 m. The baskets seem designed to be reachable, but perhaps a different orientation is needed. I wonder whether the initial orientation, or a typical top-down grasp quaternion beginning [0.5, 0.5, …], would help. A straight-down approach requires the wrist to be high and far forward. Tilting local +X downward and toward world +Y would extend the fingers beyond link6, allowing the wrist to remain closer. A forward tilt of 30–45° could reduce the required link6 y target by about 0.08 m. The objects would tilt, which is acceptable for container placement. Currently, local +X points along world -Z. I want its new world direction to be [0, sinθ, -cosθ]. Could I achieve this by rotating negatively about local Y? For the left arm’s top-down orientation at yaw 45°, multiplying its rotation R by Ry(-θ) gives the matrix [[c, 0, -s], [0, 1, 0], [s, 0, c]] for the additional rotation. Its first column is (c, 0, s), so the new finger direction is c times local X plus s times local Z. Since local Z has world components [0.707, 0.707, 0], this produces -c along world Z plus s times [0.707, 0.707, 0]. That points diagonally forward in both X and Y, rather than solely in the vertical plane containing world +Y. Rotating about world X could produce the desired tilt, although it would also change the closing direction. Another option is a top-down orientation at yaw 90°, where local Y points along world -X and local Z along world +Y. Using Rz(90°) × Ry(90° - θ) would give the desired finger direction. Ry(φ) maps local X to [cosφ, 0, -sinφ]; for φ = 90° - θ, applying Rz(90°) gives [0, sinθ, -cosθ]. Thus yaw 90° combined with Ry(60°) would give a finger direction with a +Y component of 0.5 and a downward component of 0.866. The closing direction would remain world -X. That would not be perpendicular to the elephant’s estimated long axis along world +X, +Y, but the elephant is already grasped and could be reoriented carefully. If the grasp is secure, the object should rotate with the gripper. The right arm is currently at yaw 0° with R = Ry(90°), so local Z points along world +X and local Y along world +Y. Rotating about local Y would tilt the fingers toward world X rather than Y. I could change both arms to yaw 90° before tilting. The right arm’s yaw change from 0° to 90° would require two actions while holding the rabbit, whose orientation is otherwise irrelevant to placement. A simpler alternative is to rotate each current orientation directly by +30° about world X. I initially need to check the sign: RotX(α), with matrix [[1, 0, 0], [0, c, -s], [0, s, c]], maps [0, 0, -1] to [0, sinα, -cosα]. Thus positive α = 30° gives the desired forward tilt. I can use q_new = RotX(30°) × q_current in the world frame for both arms. This also rotates the closing directions, cameras, and held objects, but should maintain the holds. The 30° orientation change is within the command limit. The estimated new fingertip position relative to link6 is 0.1576 m times [0, 0.5, -0.866], giving a y offset of +0.079 m and a z offset of -0.136 m. What is the held object’s bottom offset from link6? Using the elephant’s original estimated offset of 0.197 m along world -Z, the rotated offset becomes y = +0.0985 m and z = -0.1705 m. To put that point at the basket’s estimated y center of 0.06 m, link6 would need y = -0.0385 m, close to the left arm’s current y = -0.03 m. A 30° forward tilt at the current horizontal position could therefore move the elephant over the basket while keeping link6 nearby. The current left link6 x coordinate is -0.342 m, compared with the basket’s estimated x center of -0.315 m. The object’s center offset remains uncertain, and it may still be too far left. I could move link6 to x = -0.315 m or -0.30 m while tilting. For the right arm, using y = -0.11 m plus the 0.0985 m offset would give -0.0115 m, still short of the basket center at 0.06 m; that estimate would require link6 y = -0.0385 m. The earlier right target at y = -0.05 m and z = 1.05 m was not reached, but the changed orientation might allow y ≈ -0.04 m. Its current x = 0.261 m is also short of the basket center at x = 0.32 m, requiring a shift of about +0.06 m. I am still unsure of the rabbit’s actual center relative to the gripper. In the high-camera view it appears above the front-right area near image x = 465 pixels; does that correspond to world x ≈ 0.35 m? I should check its position through the link6 geometry after tilting. Would the tilt lower the object relative to link6? Using the elephant’s estimated rotated bottom offset, its bottom height would be 1.056 - 0.170 = 0.886 m, above the estimated rim height of 0.85 m. The fingertips would be at z ≈ 0.920 m, which also appears clear. The rotation would move the object forward by about 0.10 m. With the left link6 at y = -0.03 m, an approximately +0.10 m rotated object offset would place it near y = 0.07 m, close to the basket center. For the rabbit specifically, its original estimated bottom offset is 0.185 m. Rotating that by 30° gives a forward offset of 0.0925 m. At the current right link6 y = -0.11 m, that puts its bottom near y = -0.0175 m, still in front of the basket. Moving link6 to y = -0.03 m would put that point near y = 0.0625 m. I therefore consider a right y target of -0.03 m. My proposed tilted link6 targets are left [-0.30, -0.04, 1.06] m and right [0.32, -0.035, 1.05] m. I estimate their position distances from the current poses as 0.043 m for the left and 0.098 m for the right. The 30° orientation change is 0.524 rad. These targets may pass the precheck with the new orientations. First, I’ll use SciPy to compute the quaternions by applying RotX(30°) to each current intended top-down rotation and inspect the resulting local X directions.

The straight-down basket targets failed the local IK precheck for both arms, so I’ll try the computed forward tilt with adjusted wrist positions. This should extend the held elephant and rabbit over the basket openings while keeping the wrists closer, with both grippers commanded closed.

The right arm has reached its target, while the left arm has completed only part of the orientation change, approximately 20°, during the 12 steps. In the high-camera view, the elephant appears near pixel (160, 148), perhaps above the back-left rim, and the rabbit near (490, 136), perhaps above the back-right rim. I should inspect their positions before placing them. The rabbit appears near (488, 135), while the red basket spans approximately x = 382–516 and y = 141–213 pixels. This puts its apparent position just behind the back rim at y = 135 pixels. The right wrist view has the red basket filling the background, and the rabbit may be held above the interior near the back wall. Should I move it slightly toward the front? The tilt moved the object toward world +Y, which appears upward, toward smaller vertical pixel coordinates, in the high-camera view. Its apparent position shifted from (465, 211) to (488, 135), moving upward and rightward toward the basket’s back edge. The desired basket center is near (450, 185), rather than (488, 135). The right link6 x coordinate changed from 0.261 m to 0.32 m, a +0.059 m shift, for which I expected about +32 pixels horizontally. The rabbit now appears about 40 pixels, or roughly 7 cm, too far right. Could its grasp-center offset from link6 be about +0.05 m in x? At the initial grasp, however, right link6 was at [0.239, -0.221, 0.935] m and the triangulated rabbit body center was approximately [0.236, -0.2206, 0.795] m, giving an x offset of -0.003 m, not +0.05 m. Perhaps the feature at (488, 135) is only the tail or head, with the body center closer to (482, 142). I’ll estimate the body center under the current tilt and project it into the high-camera image. The initial body-center offset relative to link6 is [-0.003, +0.0004, -0.1399] m. Applying RotX(30°), with c and s denoting the cosine and sine of 30°, gives x = -0.003 m, y = c × 0.0004 - s × (-0.1399) = +0.0703 m, and z = s × 0.0004 + c × (-0.1399) = -0.1209 m. Adding this offset to the current right link6 position, [0.32, -0.035, 1.051] m, gives an estimated body center of [0.317, 0.0353, 0.9301] m. I’ll compute its high-camera projection to compare with the apparent rabbit position.

The rabbit’s predicted body-center projection, (486, 137) pixels, matches its apparent position near (488, 135) in the high-camera view. Its estimated world center is therefore [0.317, 0.035, 0.93] m. The basket center may be [0.32, 0.06, 0.76] m, which projects near (450, 186) at floor height. At z = 0.93 m, that same basket-center x-y position might project near image x = 473 pixels; I have not calculated that projection. I should compare positions at the object’s height rather than at the basket floor. The rabbit’s x = 0.317 m is well centered, and y = 0.035 m is within the estimated basket footprint, whose front and back may be at y = -0.03 m and 0.15 m. Its elevation above the estimated z = 0.85 m rim explains why it appears near the back rim. No horizontal adjustment is needed. I now need to choose a release height. At the initial rabbit grasp, its bottom was at z = 0.75 m and link6 was at z = 0.935 m, giving a bottom offset of -0.185 m. Is that offset along local X? It may not be purely along local X because of a small horizontal contact offset. After the 30° tilt, I estimate the bottom offset as y = +0.0925 m and z = -0.1603 m. At the current link6 height of 1.051 m, the bottom is therefore at z = 0.8907 m, about 4 cm above the rim, while the body center is at z = 0.930 m. Lowering right link6 by 0.04 m to z = 1.011 m would put the bottom at z = 0.8507 m, approximately level with the rim. Another 0.04 m descent to z = 0.971 m would put the bottom at z = 0.8107 m, leaving a 5 cm drop to the estimated z = 0.76 m floor. The fingertips would be at approximately 0.971 - 0.136 = 0.835 m, below the rim, but they could fit inside the opening. The rabbit remains at estimated x-y coordinates [0.317, 0.035] m, and the tilted fingers extend into the basket. I also considered lowering right link6 by about 0.06 m to z = 0.99 m. That would put the bottom at z = 0.8297 m, leaving a roughly 0.07 m drop, with the fingertip at z = 0.854 m, just above the rim. I could use four steps at the same horizontal position and orientation, then release. Releasing immediately from a bottom height of about 0.891 m would instead produce a 0.13 m drop into a basket about 0.09 m deep. That might work, but the toy could bounce. I prefer lowering by about 0.05 m to link6 z = 1.00 m, where the bottom would be at z = 0.8397 m, just below the rim. I initially considered four steps for that descent. The left arm has not completed its tilt. Its measured quaternion is [0.693, -0.142, 0.59, 0.389] in wxyz order, perhaps corresponding to a tilt of about 17°, compared with the 30° target. The elephant appears near (156, 147) pixels; the candidate body center [-0.30, 0.04, 0.93] m projected near (163, 135), reasonably close. I estimate that the elephant is above the basket near [-0.30, 0.015, 0.94] m. Its horizontal position remains uncertain: with link6 x = -0.301 m, the object might be at x = -0.288 m, about 0.027 m right of the estimated basket center at x = -0.315 m, but still inside. Its y coordinate may be about 0.02 m, also inside. I could finish the left tilt and lower it toward z = 1.02 m. Another intermediate option is left link6 [-0.301, -0.037, 1.04] m with the desired 30° orientation, while lowering the right to z = 1.0 m. That would involve about 10° of remaining left rotation and a 0.022 m descent. I considered five steps, followed by inspection and release of both toys. Using the elephant’s initial bottom offset of 0.197 m, the completed tilt gives estimated offsets of z = -0.1706 m and y = +0.0985 m, though lateral offsets may also matter. At left link6 z = 1.04 m, its bottom would be about z = 0.8694 m, still 0.019 m above the rim. At z = 1.0 m, its bottom would be about z = 0.829 m, inside the basket. I can therefore lower the left directly by 0.062 m while finishing its orientation, and lower the right to z = 1.0 m as well. Five steps might leave the left only partly at its target. The estimated left fingertip height at that target is 1.0 - 0.1365 = 0.8635 m, above the 0.85 m rim, while the object’s bottom is below it. I’ll use six steps with both link6 heights targeted at 1.0 m, their horizontal positions unchanged, both grippers closed, and the desired 30° forward tilt. I will inspect before releasing.

After six steps, the left link6 is at z = 1.034 m and has not yet reached its 1.0 m target; the right link6 is at z = 1.0 m. In the high-camera view, the elephant appears near pixel (173, 145), and the rabbit near (473, 156). I estimate the elephant’s bottom height as 1.034 - 0.170 = 0.864 m, still above the basket rim. Releasing it now would allow a drop of about 0.10 m and would likely leave it inside, but I prefer to lower it farther first. The rabbit’s estimated bottom height is 0.84 m, inside its basket, so it is ready for release. I’ll use three steps to open the right gripper while lowering the left link6 to z = 1.0 m with its gripper closed. These actions can be combined, and I plan to release the elephant next.

The rabbit is stable on the floor inside the red basket, and the left elephant is still held. With the left link6 at z = 1.009 m, I estimate the elephant’s bottom at z = 0.838 m, inside the basket. I’ll open the left gripper for three steps, then inspect. I could retract the right arm upward and backward to [0.32, -0.12, 1.08] m. Its open fingers are still around the released rabbit, so I should consider whether withdrawal could cause a collision. I estimate the fingertips at about z = 0.864 m, just above the rim at z = 0.85 m. Moving up by 0.08 m and backward by -0.08 m seems safe. I could do this while opening the left gripper, but I’ll hold the right arm steady for now and retract both arms after releasing the elephant.

The elephant is lying stably on its side inside the white basket, and the rabbit is resting inside the red basket. No orientation is specified for container placement, so the elephant’s position is acceptable. Five objects remain: the central wooden elephant goes into the left basket, the red and green peppers into the middle basket, and both chocolate bars into the right basket. There are about 989 control steps left, which should be plenty for careful manipulation. I can work with both arms in parallel. I initially consider picking both chocolate bars next: their high-camera positions are approximately (212, 264) and (512, 288) pixels, with an estimated height of z = 0.755 m. However, the left arm would then need to carry its bar across to the right basket at world x = 0.32 m, which may exceed its reach or create interference between the arms. A better allocation is for the right arm to handle the two bars one at a time and the left arm to handle the two peppers and the central elephant. That gives the right arm two objects and the left arm three. The right-hand bar is near world x = 0.4 m, y = -0.18 m and should be accessible to the right arm. The left-hand bar is near x = -0.23 m, y = -0.15 m, so reaching it with the right arm may be difficult. The left arm could move it to a staging position near the center for the right arm to pick up. Direct left-arm placement into the right basket seems unlikely: with arm bases around x = ±0.3 m, reaching x = 0.32 m from the left side would involve roughly 0.6 m across. Direct right-arm access to x = -0.23 m would similarly involve about 0.53 m across, although a different shoulder orientation might make it possible. If the bases are around y = -0.6 m, the total reach to the left bar might be about 0.7 m; I am unsure of the actual base positions. I also consider whether the left arm could carry the bar with link6 near x = 0 m and tilt it toward the right basket, but an object extending only about 0.15 m would not reach x = 0.32 m. The basket may span world x = 0.20–0.44 m, so perhaps placement near x = 0.15 m could reach its left edge, but if the left arm can only reach about x = 0 m, that still may not work. Temporarily staging the bar near the center front, or possibly in the middle basket, could allow the right arm to retrieve it; it cannot remain there in the final state. Having the right arm hold the basket while the left places the bar seems unnecessary. I can test direct right-arm access after clearing other objects and use a handoff or staged pickup if needed. For the next pair, I will use the left arm for the red pepper and the right arm for the right-hand chocolate bar. Then the left can handle the green pepper while the right handles the left bar, possibly with a handoff, and the left can place the central elephant last. Picking the central elephant before the peppers is another reasonable order. I need to refine the remaining object positions from the camera calibration and estimated table plane. The red pepper is near high-camera pixel (150, 287), or approximately (150, 288). At an assumed center height of z = 0.78 m, I tentatively estimate world x = -0.42 m, y = -0.18 m; another rough estimate puts x near -0.43 m. At z = 0.775 m, perhaps the inverted ray gives x = -0.427 m, but I have not computed it yet. Its top may be at z = 0.80 m and its height about 0.05 m. The green pepper near pixel (273, 246) is roughly at world x = -0.1 m, y = -0.10 m. The central elephant near (318, 291) is roughly at x = -0.005 m, y = -0.22 m. The right bar near (513, 290) may be at x = 0.41 m, while an earlier estimate was about 0.39 m; I estimate its top at z = 0.758 m. I will use the high-camera ray estimates and then refine alignment from the downward wrist views. The red pepper is roughly spherical, with an estimated diameter of 0.055 m, so I can grasp across its equator without a particular yaw requirement. I consider left yaw 0° or 45° and will retain the left arm’s yaw-45° downward quaternion, [0.653, -0.271, 0.653, 0.271] in wxyz order. The right bar’s long axis runs along world +X, -Y; the right arm’s yaw-0° downward orientation closes along world Y and seems adequate. Its quaternion is [0.707, 0, 0.707, 0]. Returning from the current 30° forward tilt to downward orientation requires a -30° change, within the rotation limit. A direct left move from the current link6 position [-0.301, -0.032, 1.009] m to a red-pepper hover at [-0.42, -0.17, 1.02] m would be about 0.199 m, within the 0.25 m target limit. A right move from [0.32, -0.035, 1.0] m to a bar hover at [0.39, -0.20, 1.0] m would be about 0.18 m. However, the grippers are still open around the released toys near the basket rims. At link6 z around 1.0 m, I estimate the tilted fingertips at z = 0.864 m, only just above the estimated rim height of 0.85 m. Along a left withdrawal from y around -0.03 m toward -0.17 m at z around 1.01 m, the fingertips might be at z = 0.87 m, giving only about 2 cm of clearance. Turning downward during that move would put them near z = 0.852 m, almost at rim height, and could cause contact with the front rim or the released elephant. I could raise to z = 1.08 m while retracting toward y = -0.10 m, then descend near the objects. A left hover at z = 1.03 m might also be safe once it is behind y = -0.1 m. Still, raising vertically first is the safest withdrawal because the fingers currently straddle the released toys. I will keep both arms at their current x-y positions, raise their link6 targets to z = 1.10 m, and restore the downward orientations with both grippers open. This commands a 0.091 m rise for the left arm and a rise from z = 1.0 m to 1.10 m for the right. I will allow eight steps, inspect the resulting poses, and then approach the next objects at a hover height around z = 1.03 m. Observation 111 shows both released toys remaining supported, so I can proceed with this withdrawal.

Both arms rose only about 0.03 m during the eight steps. Perhaps they are near their reach limits around y = -0.037 m and z = 1.04 m; they did not reach the commanded height of z = 1.1 m. Should I now move back toward the objects while completing the downward orientation at a lower height? Are the fingers clear of the basket rims now? In the high-camera view, the left gripper appears above the elephant but still over the basket, while the right fingers may be outside the right edge. I could retract along negative Y while rotating, keeping the target height around z = 1.04 m, then hover over the red pepper around z = 1.03 m. Alternatively, I could move directly to a left red-pepper hover at [-0.42, -0.17, 1.02] m and a right chocolate-bar hover at [0.39, -0.20, 1.02] m, with both grippers pointing down. I estimate the target distances as 0.185 m for the left arm and 0.181 m for the right, with about 15° of rotation remaining, so the targets are within the command limits. The paths move away from the baskets as Y decreases, but could the open fingertips catch a rim during withdrawal? I estimate the left gripper’s current tilt at about 17°, putting its fingertips at z = 1.039 - 0.147 = 0.892 m, above the rim. The open fingers are around the elephant, whose bottom is near z = 0.76 m, so I do not expect interference. The right fingertips are around z = 0.89 m. While moving back and turning downward, I estimate the fingertips would be around z = 0.88 m at a link6 height of 1.039 m, which appears safe. I plan to use 12 steps for the approach. Before moving, I’ll refine the object positions by inverting the high-camera rays, using an assumed red-pepper center height of z = 0.78 m and a chocolate-bar center height around z = 0.76 m.

The ray calculation places the red pepper at world x = -0.328 m, not my earlier estimate of -0.43 m: high-camera pixel x = 150 at an assumed height of z = 0.78 m gives x = -0.328 m. Would assuming z = 0.75 m have given about x = -0.348 m? The left arm’s current x coordinate is -0.301 m, so the pepper is nearby in X, with y around -0.21 m. The right chocolate bar is near [0.394, -0.21] m in X and Y. The other estimated X-Y positions are [-0.098, -0.12] m for the green pepper, [-0.004, -0.224] m for the central elephant, and [-0.225, -0.148] m for the left bar. For the red pepper, the top-center pixel (150, 283), assuming z = 0.80 m, gives approximately [-0.319, -0.210] m in X and Y. Its body center may be at z = 0.78 m with X-Y coordinates [-0.328, -0.212] m. I’ll choose a grasp center of [-0.323, -0.212] m. I initially consider link6 z = 0.945 m. With an estimated pepper top at z = 0.804 m, tabletop at z = 0.75 m, and midpoint at z = 0.777 m, link6 z = 0.935 m would put the fingertips at z = 0.777 m. The left gripper’s top-down yaw of 45° gives a diagonal closing direction suitable for the pepper. The right bar’s long axis appears to run from image pixel (498, 275) to (538, 306), with its center perhaps at (518, 291). Its world long-axis direction is +X, -Y, and I’ll use [0.394, -0.210] m as the grasp center. For this flat bar, I estimate the top at z = 0.758 m and thickness at 0.008 m. Should the fingertips descend to 0.005 m above the table? Side contact at z = 0.755 m would require link6 z = 0.9126 m if the fingertips are at that height. However, fingertips near the table could collide with it. A typical link6 target of z = 0.925 m would put the tips at z = 0.7674 m, with the pads reaching down to about z = 0.767 m; perhaps they could grip the upper portion of an object whose top is around z = 0.76 m. Alternatively, the tips may need to reach z = 0.752 m to straddle the bar. I can first hover at link6 z = 1.0 m, then descend to z = 0.93 m and inspect. The open gripper appears wide enough to span the bar’s short width. The right gripper’s yaw-0° top-down orientation would close along world Y, at 45° to the bar’s long axis, which may be adequate. A yaw of -45° would be better aligned: local Y would point along world +X, +Y, perpendicular to the bar’s +X, -Y long axis. From a fully top-down yaw-0° pose, left-multiplying by RotZ(-45°) would give a 45° orientation change, achievable in one action. I’ll choose the right top-down wxyz quaternion [0.65328148, 0.27059805, 0.65328148, -0.27059805]. The measured right quaternion is [0.697, 0.121, 0.697, 0.121], which I interpret as roughly a 20° forward tilt at yaw 0°. The change to the desired pose might be about 60°, or approximately 56°; it may be within the 1 rad limit, but I should calculate it. The local Z direction at yaw -45° is [0.707, -0.707, 0]. I have not yet worked out the corresponding camera horizontal axis. I’ll retain the left yaw-45° top-down orientation. My proposed hover targets are left [-0.323, -0.212, 1.0] m and right [0.394, -0.210, 1.0] m. I estimate their positional distances from the measured poses as 0.178 m and 0.19 m, respectively, and tentatively plan 12 control steps. Before issuing motion, I’ll use SciPy with the rounded measured quaternions to check both orientation distances, especially whether the right target is within 1 rad. The targets may then pass the IK precheck.

The released toys are stable and the grippers are clear of the basket rims. I’ll move to hover over the estimated red pepper and right chocolate bar positions, turning the right gripper so it closes across the bar’s short width; the calculated rotation changes are within the action limit.

Both arms have only partly reached their planned X-Y positions. The left arm is at y = -0.151 m rather than its target of -0.212 m, and the red pepper appears lower and to the right of center in the left wrist view, near pixel (425, 275). In the right wrist view, the chocolate bar appears near the top at pixel (400, 90), with the gripper center below it. The right gripper’s orientation is close to the desired quaternion. I’ll continue toward the same hover targets for eight steps with both grippers open: left X-Y coordinates [-0.323, -0.212] m and right X-Y coordinates [0.394, -0.21] m.

The red pepper now appears centered near pixel (335, 180) in the left wrist view, and the chocolate bar appears centered near (335, 160), with its long axis vertical in the right wrist view. Where should the gripper’s contact center project for an object at z = 0.78 m when link6 is at z = 1.0 m? The earlier calculation with link6 at z = 1.03 m put a point on the gripper axis at object height z = 0.78 m near v = 149.5 pixels. The camera is now 0.03 m closer, so I need to check the new vertical image coordinate. I’ll read the current camera calibration and project the estimated object positions at their contact heights. The pepper center at [-0.323, -0.212, 0.775] m might project near v = 184 pixels, but that is only an estimate. I also need to determine where the bar center at [0.394, -0.21, 0.758] m projects.

The objects appear close to their predicted wrist-image positions, though small lateral corrections may help. The green stem of the red pepper appears near pixel (335, 195), and the bar center initially looks near x = 335 rather than the predicted x = 320 pixels. These could indicate X-Y offsets of roughly 0.01 m along the cameras’ horizontal directions. The pepper’s body center appears near (335, 185), compared with the predicted (320, 170) at a mid-body height of z = 0.775 m. At an assumed top height of z = 0.80 m, the predicted vertical coordinate is 197 pixels, close to the stem’s observed 195 pixels, leaving mainly a 15-pixel horizontal offset. For the left gripper at yaw 45°, the camera’s horizontal world direction is approximately (0.707, -0.707). If the depth is about 0.18 m, the offset estimate is 15 / 397 × 0.18 = 0.0068 m, corresponding to approximately +0.0048 m in X and -0.0048 m in Y relative to link6. That would put the pepper’s top center near [-0.318, -0.217, 0.80] m. My current X-Y grasp center, [-0.323, -0.212] m, is within about 7 mm, which seems small. The bar’s long axis is vertical in its wrist image, and its center now looks closer to x = 333 pixels, compared with the predicted 320. At z = 0.758 m, the yaw -45° camera’s horizontal rotation-matrix row is approximately (0.707, 0.707, 0). I estimate an offset of about 0.005 m toward positive world X and Y, perhaps putting the bar center at [0.399, -0.205] m. Is an X-Y error of 0.007 m acceptable for a bar only about 0.02 m wide? I should align more accurately before closing. I could add 0.005 m to both right-arm X-Y coordinates to target [0.399, -0.205] m, but the horizontal offset is directly along the closing direction. With the right top-down rotation Rz(-45°) × Ry(90°), local Y has world X-Y components [0.707, 0.707], matching the camera’s horizontal direction. Thus the roughly 15-pixel offset is across the bar’s width. I will move the right gripper about 0.005 m along positive local Y, corresponding to world increments of approximately [+0.0035, +0.0035] m, and use X-Y coordinates [0.398, -0.206] m. For the left gripper, the horizontal direction (0.707, -0.707) is negative local Y, whose world components are [-0.707, 0.707]. I will correct the pepper alignment by approximately [+0.0035, -0.0035] m, giving left X-Y coordinates [-0.3195, -0.2155] m. For descent, the pepper’s link6 target is z = 0.935 m, putting the fingertips at z = 0.7774 m. For the bar, I am considering link6 z = 0.915 m. A bar midpoint at z = 0.754 m and a fingertip reach of 0.1576 m would suggest link6 z = 0.9116 m, although contact farther back on the pads might allow z = 0.92 m. At z = 0.915 m, the tips would be at z = 0.7574 m, about 7 mm above the assumed tabletop at z = 0.75 m, allowing the fingers to straddle the thickness without table contact. The open gripper width is about 0.1 m, the bar length about 0.10 m, and its short width about 0.02 m, so the open descent appears feasible. At that link6 height, I estimate the camera center at z = 0.830 m, the bar top at z = 0.758 m, and depth around 0.1 m, giving a larger view. I could first descend the right arm to z = 0.93 m for three steps and inspect before continuing to z = 0.915 m. For this action, however, I will use four steps with both lateral corrections: lower the left link6 from z = 1.0 m to 0.935 m, a 0.065 m descent, and the right to z = 0.93 m, a 0.07 m descent. Both grippers will remain open, and I will inspect the next observation.

The left arm descended only 0.042 m of the planned 0.065 m during the four steps. I could continue toward the same targets for three more steps, but the right wrist view raises an alignment question. The right link6 is at z = 0.957 m, and the bar appears to span image x = 330–410 pixels, about 80 pixels wide, with its center at x = 370 rather than the desired 320 pixels. Did my correction move in the wrong direction? In observation 139, I estimated the bar center near x = 335 pixels. In observation 143, it appears near x = 370, even though the gripper moved by +0.002 m in both world X and Y, which should have improved alignment if my object-offset estimate was correct. Descending the camera magnifies the view, however, and an X-Y offset could produce a larger image displacement at the closer distance. The apparent 50-pixel offset might require moving the gripper about +0.008 m along the camera’s horizontal direction. I had commanded +0.004 m in both world X and Y, but I am unsure where I should have expected the center to move from its earlier estimate of x = 333 pixels. Perhaps the bar’s actual world X-Y center differs from [0.394, -0.21] m because I chose the wrong center pixel when inverting the high-camera ray. I used pixel (517, 291), while the actual center might be nearer (516, 288). After the yaw −45° alignment in observation 139, I read the right wrist center as approximately (338, 160), compared with the predicted (320, 155), an 18-pixel horizontal offset. With the current measured gripper X-Y position of [0.396, -0.208] m, an initial object offset of 0.005 m from the target would leave about 0.003 m of residual offset, which I would expect to produce roughly 15 pixels rather than 50. Could the gripper have shifted or rotated the bar? Its high-camera position still appears unchanged near pixel (516, 289). The camera quaternion changed slightly, and the recorded calibration is exact. Before continuing the descent or making another correction, I’ll use the current calibration to project the assumed bar center [0.394, -0.21, 0.758] m from the current right link6 pose [0.396, -0.208, 0.957] m and check its predicted image position.

The predicted chocolate-bar center in the right wrist image is near pixel (330, 199), while the observed center may be near (365, 210). In observation 143, I estimate that the bar spans x = 310–414 pixels, with its center at x = 362, and y = 60–345 pixels, with its center at y = 202. That leaves a horizontal offset of about +32 pixels. My assumed world X-Y position may be off by about 0.005 m. I should refine the bar’s world X-Y coordinates using the current wrist view and the high-camera view at the assumed height z = 0.758 m. Its high-camera center may be near (518, 289), or perhaps (519, 289), while another estimate of its wrist-image center is (365, 201). Should I use the midpoint of the wrapper rather than the whole bar? Triangulation could refine the world center, but since the bar is flat and I am treating its height as known, I can instead intersect the wrist-camera ray through pixel (362, 202) with the plane z = 0.758 m. I’ll compute that estimate and check the red pepper’s top position as well.

The wrist-based calculation places the chocolate bar’s center at approximately world x = 0.386 m, y = -0.216 m, rather than the earlier estimate of x = 0.394 m, y = -0.210 m. The earlier inversion of high-camera pixel (517, 291) gave the latter coordinates. Why do these estimates disagree? Perhaps I chose the wrong center pixel in the high-camera image. I’ll project [0.386, -0.216, 0.758] m into that image to check where it appears and compare it with the earlier estimate.

The bar’s actual center in the high-camera image may be near pixel (514, 294). Its visible extent was approximately from (497, 274) to (537, 307), with midpoint (517, 290.5), but perspective on the wrapper’s top could put the geometric center of its base nearer (514, 294). That is a difference of about 3 pixels, so I will use the closer wrist view to refine the alignment. I’ll target right-arm X-Y coordinates [0.386, -0.216] m rather than [0.398, -0.206] m, estimating a shift of approximately -0.010 m in both X and Y from the current pose. For the red pepper, the wrist-camera ray through pixel (320, 290), intersected at z = 0.8 m, gives estimated X-Y coordinates [-0.3237, -0.2177] m. The left link6 is currently at [-0.321, -0.214] m in X and Y, so I’ll make a small correction to [-0.324, -0.218] m. I’ll lower the right link6 to z = 0.915 m at X-Y coordinates [0.386, -0.216] m and the left to z = 0.935 m at [-0.324, -0.218] m. The remaining descents are 0.042 m on the right and 0.023 m on the left. This is the final approach, so I’ll use three control steps with both grippers open.

The red pepper’s body is centered between the left fingers, and the chocolate bar’s center is now near image x = 330 pixels, close to x = 320 pixels. The right link6 is at z = 0.926 m and has not reached its target of 0.915 m. Its fingertips are at approximately z = 0.7684 m, about 10 mm above the estimated bar top at z = 0.758 m, so it needs another 0.011 m of descent. The left link6 is at z = 0.936 m, putting its fingertips at z = 0.7784 m, around the pepper’s mid-body. I’ll close the left gripper while lowering the right to z = 0.915 m with its gripper open. I considered two control steps, but will use three.

The right link6 is at z = 0.923 m rather than the target of 0.915 m, and its quaternion changed slightly during IK execution. The high-camera view still shows the bar on the table, with the right fingers open. Perhaps I could lower another 0.008 m and then close. I estimate the fingertips at z = 0.7654 m and the bar’s top at z = 0.758 m, a difference of about 7 mm. Could the pads already contact the bar’s sides? They extend above the tips, so if the tips are still above the bar’s top, the fingers may be entirely above it. The fingers’ farthest forward extent is local x = 0.1576 m; although they have thickness, the pads may only extend that far. If the tips remain above the top surface, I cannot grasp the bar. I could lower by 0.01 m to z = 0.913 m. Is a joint limit preventing arrival? At the current y = -0.217 m and z = 0.923 m, the previous z target of 0.915 m is still 0.008 m lower. Over three steps, the right arm descended only 3 mm, from z = 0.926 m to 0.923 m. Perhaps the orientation puts the IK near a singularity. I could move slightly backward in Y or adjust the orientation. For now, I’ll try a right link6 target of z = 0.91 m, retaining the horizontal target and exact intended quaternion, with the gripper open for three steps. If it still does not reach, I’ll try a slight tilt. The left opening command is 0.431 after three closure steps, so I’ll hold its pose and continue commanding closure during this action.

The right arm did not descend farther. Perhaps it is near a lower reach limit in its current orientation at x = 0.386 m, y = -0.218 m. The left arm reached z = 0.936 m at x = -0.324 m, y = -0.218 m around the pepper, but the right arm’s yaw of -45° may impose a different kinematic constraint. I could change its yaw to 0° or try tilting it. Exact perpendicular alignment is not essential here: at yaw 0°, the fingers would close along world Y, at 45° to the bar, which still seems acceptable. I initially consider a 10° forward tilt to reach the bar while keeping link6 higher. I estimate the current fingertip height at z = 0.766 m and the bar’s top at z = 0.758 m, requiring another 8 mm of downward reach. However, a +10° rotation about world X would give local X a downward component of 0.985 and a forward component of 0.174. At the same link6 height of z = 0.924 m, the fingertip height would be approximately 0.924 - 0.155 = 0.769 m. That actually reduces downward reach by about 0.0024 m compared with the 0.1576 m finger extent, so the tilt would raise the fingertips rather than lower them. Tilting backward beyond straight down cannot give local X a downward component greater than 1. I should instead change yaw to improve the joint configuration while maintaining alignment and avoiding pushing the bar. A yaw-0° orientation with a later link6 target of z = 0.91 m may be reachable. Earlier, the right arm reached the rabbit grasp at x = 0.239 m, y = -0.221 m, z = 0.935 m with yaw 0°. The bar target at z = 0.91 m is lower and near the table, but may still be possible. The current x = 0.386 m is farther right, and the yaw of -45° may be contributing to a reach limit relative to the arm base. I’ll first rotate the open right gripper 45° to yaw 0° while holding its current position, including z = 0.924 m, then try descending afterward. Rotation about link6 changes the finger positions, but the open gap of about 0.1 m appears to leave the fingers well clear of the bar. I’ll allow six steps for this rotation. Meanwhile, the left opening command is 0.431, and the fingers appear pressed around the pepper, but the red pepper still appears on the table because I have not lifted it. I’ll test the grasp by raising the left arm 0.03 m to z = 0.966 m with its orientation steady and its gripper commanded closed. I initially consider three steps for that lift, but will combine it with the right rotation in a six-step action, which I expect will let the left arm reach its target. Then I’ll inspect whether the pepper moved with the gripper.

Has the red pepper lifted in the high-camera view? It appears near pixel (143, 286), compared with its original position near (150, 288). The 3 cm lift may explain that projection change. Its bottom may now be near image y = 304 rather than the original y = 300, but that is difficult to judge. It appears between the fingers and possibly above the table; I am unsure whether there is a shadow beneath it, and I cannot see clear separation from the table. Another estimate puts its center at (144, 287) after the link6 rose 0.03 m. I would expect the higher object to project farther left because its world x coordinate is negative, and upward in the image, perhaps near (145, 283). The wrist view provides stronger evidence: the pepper remains in the same position relative to the fingers and has the same apparent size from observation 152 to observation 158. If it had stayed on the table while the gripper rose, it would have moved or shrunk in that view. I therefore conclude that it is held securely. The right gripper has completed only about 25° of the intended 45° rotation, and the bar now appears diagonal in its wrist view. I’ll continue toward the yaw-0° orientation and lower the right link6 from its current z = 0.924 m toward the target [0.386, -0.218, 0.91] m. I estimate the remaining rotation at about 20°, within the action limit. I’ll use six steps while holding the pepper with the left arm, then close the right gripper if the next view shows suitable alignment.

The right gripper is still not pointing straight down, and its link6 x coordinate has shifted to 0.38 m. The orientation change is only partial, while its height is essentially unchanged. Perhaps the arm is near a joint or elbow limit while extended to the right. Its current x-y position is [0.38, -0.217] m. I could move it slightly backward or leftward before lowering it. The earlier rabbit grasp at x = 0.239 m was easier; the bar at x = 0.386 m may be near the arm’s outer reach, although the gripper started at x = 0.3 m and may still be able to grasp there. Could I use the left arm for this bar? It is currently holding the pepper. Another option is to push the bar inward with the right gripper, or change the right grasp to yaw 90°, closing along world X, which might be more natural kinematically at this outer x position. I previously reached x = 0.394 m at z = 1.0 m with the right gripper pointing down at yaw 0°, but descent stalled around z = 0.923 m even at yaw -45°. The yaw-0° target still has not been reached after 12 steps. I am unsure what yaw the current wxyz quaternion [0.691, 0.112, 0.711, -0.066] represents, but the gripper is gradually rotating. Perhaps IK is prioritizing orientation and x correction over descent; once yaw 0° is reached, it may descend. This is slow execution rather than a failed precheck, so I will continue toward the same target. The left arm could begin carrying the pepper to the middle basket simultaneously. The middle basket is at x = 0 m and the right bar is near x = 0.38 m, so I do not expect those actions to interfere. Still, I prefer to finish the right grasp before transporting both objects. I’ll hold the left arm and its secured pepper stationary, and use 10 more steps with the right gripper open, targeting link6 position [0.386, -0.218, 0.91] m and the yaw-0° downward orientation.

The right opening command is 0. Does that mean the fingers have closed without holding anything? They may be touching at the center, but I am unsure where the bar lies relative to them in the wrist view. The bar appears to span approximately pixel (310, 380) to (640, 0). One black finger extends from the bottom of the image to around (318, 255), and the other is near (470, 270). The fingers appear at x = 318 and x = 470 pixels rather than together; perhaps perspective explains that appearance. The opening command of 0 makes me suspect that the grasp missed. Did the bar shift during closure? In the high-camera view, it may still be near pixel (511, 290). A test lift should resolve this. However, a thin bar might be held even with an opening command of 0. The commands while holding the rabbit, elephant, and pepper were about 0.285, 0.34, and 0.43, respectively; the thin bar could require a command near 0, or even 0 if its thickness is small. I’ll test-lift the right gripper by 0.03 m, targeting link6 z = 0.954 m, for three steps. I could start carrying the pepper toward the middle basket with the left arm, but I’ll hold it steady until I confirm whether the right gripper holds the bar.

The chocolate bar is clearly held. It rotated during closure or the test lift to align with the closing direction and is now vertical between the pads. It may have moved slightly to around high-camera pixel (513, 289), although its bottom is difficult to judge in that view. The stronger evidence is that it stays fixed relative to the wrist camera and fingers. I attribute the opening command of 0.1 to the bar’s thinness. The right link6 reached z = 0.946 m rather than the requested 0.954 m, but the observed 22 mm lift is enough to confirm the grasp. I’ll transport the red pepper to the middle basket and the bar to the right basket. The left link6 is currently at [-0.324, -0.218, 0.966] m. I estimate the pepper’s bottom offset below link6 as 0.186 m, based on the initial grasp height of 0.936 m and bottom height of 0.75 m. As before, a 30° forward tilt should help reach the basket. The middle basket’s estimated center is at x = 0 m, y = 0.06 m. Can the left arm reach x = 0 m? I think it likely can, and it will later need to handle the central elephant there. A tilted link6 target of [0, -0.04, 1.05] m is about 0.354 m from the current pose, exceeding the 0.25 m command limit. I can instead use an intermediate target of [-0.16, -0.13, 1.05] m, about 0.20 m away, followed by [0, -0.04, 1.05] m, about 0.19 m farther. For the right arm, I initially consider moving from [0.381, -0.217, 0.946] m to [0.32, -0.035, 1.0] m with a 30° forward tilt. I estimate that distance as 0.224 m, within the 0.25 m limit. Turning from the yaw-0° downward pose to the tilted wxyz quaternion [0.683, 0.183, 0.683, 0.183] requires about 30°, or 0.524 rad. I need to estimate the bar’s clearance and release height. Its initial grasp link6 height was 0.924 m, with an estimated top at 0.758 m and contact midpoint at 0.754 m, giving a center offset of about 0.17 m. After the 30° tilt, I estimate its center offset relative to link6 as y = +0.085 m and z = -0.147 m. Using an initial bottom height of 0.75 m gives a bottom offset of 0.174 m; after tilting, its vertical offset is about -0.151 m. At link6 z = 1.0 m, the bottom would be around z = 0.849 m, approximately at the rim. At link6 z = 1.03 m, it would be around 0.879 m, above the rim. Would lowering to 0.99 m give a release bottom height of 0.809 m? I need to check that estimate. For comparison, the rabbit’s initial offset was 0.185 m, putting its bottom around 0.84 m at the tilted link6 height of 1.0 m. For the bar, releasing at link6 z = 1.0 m would put its estimated bottom at 0.849 m and allow about a 0.09 m drop to the floor. That seems safe. I could transport at 1.05 m and then lower to 1.0 m, but I’ll choose the right transport target [0.32, -0.035, 1.03] m. Its estimated center y coordinate would be -0.035 + 0.085 = 0.05 m, inside the basket, with x = 0.32 m. For the pepper, the 0.186 m bottom offset becomes approximately z = link6 z - 0.161 m and y = link6 y + 0.093 m after the 30° tilt. To place it near the middle basket center at y = 0.06 m, link6 would need y = -0.033 m and x = 0 m. A later target of [0, -0.033, 1.04] m would put its bottom around z = 0.879 m, above the rim; lowering link6 to 1.0 m would put the bottom around 0.839 m, inside. For this action, I’ll move the left arm through [-0.16, -0.13, 1.05] m while sending the right arm directly toward its basket. I can apply the pepper’s 30° tilt at the intermediate pose. That moves it forward along world +Y by about 0.09 m, giving an estimated object y coordinate of -0.037 m while link6 is at y = -0.13 m. It should still be in front of the middle basket and clear of it. I estimate the left move as 0.196 m. My initial right-distance estimate was about 0.234 m, but for the chosen right target [0.32, -0.035, 1.03] m, the distance is sqrt(0.061² + 0.182² + 0.084²) = 0.209 m, below 0.25 m. The right arm previously completed a similar tilted basket approach with the rabbit from [0.261, -0.11, 1.046] m. The new target may pass the precheck from the current configuration, and the left intermediate target also seems likely to pass. I’ll request 12 steps with both grippers closed. If either precheck fails, neither arm will move, and I’ll adjust the targets.

In the high-camera view, the right chocolate bar appears near pixel (478, 145), perhaps above the back of the red basket. I estimate its world position as x = 0.32 m, y = 0.05 m, and perhaps z = 0.95 m, placing it over the opening. I should lower the right link6 to z = 1.0 m before releasing it. The red pepper appears near pixel (266, 166), perhaps over the left side of the blue middle basket. The left link6 is currently at x = -0.101 m, y = -0.084 m. I estimate the pepper’s horizontal position as x = -0.101 m, y = 0.009 m, over the basket’s left half. I’ll target the left link6 at [0, -0.033, 1.0] m to center the pepper and prepare for release. The move is approximately 0.117 m overall, including a descent of 0.033 m. I’ll retain the left gripper’s 30° forward tilt; at that target, I estimate the pepper’s bottom at z = 0.839 m, inside the basket. The right arm needs a 0.04 m descent to the same link6 height of z = 1.0 m. I’ll use eight steps for both motions, keeping both grippers closed until the objects reach their release poses.

The left arm is nearly at its target: its measured x coordinate is -0.032 m rather than 0 m, and its y coordinate is -0.052 m rather than -0.033 m. The pepper appears to be inside the blue middle basket, perhaps toward its front-left area. The right chocolate bar is ready for release. I could also release the pepper now. With left link6 at z = 1.005 m, I estimate its bottom at z = 0.844 m, inside the basket. Is there an offset between the pepper’s center and link6 in x? The initial grasp center and estimated actual body center both had x-y coordinates [-0.324, -0.218] m, so I estimate its current x coordinate as -0.032 m and its y coordinate as 0.041 m, using link6 y + 0.093 m. Compared with the basket center at [0, 0.06] m, the x offset is 32 mm and the y offset is -19 mm, which places it within the basket. I’ll release both objects using three control steps.

Both released objects are contained in their correct baskets. The chocolate bar may be leaning against the rabbit and basket wall; it looks likely to be stable. Three objects remain: the green pepper, the central elephant, and the left chocolate bar. I can use the left arm for the green pepper and elephant, while testing whether the right arm can reach across to the remaining bar. If necessary, I can stage the bar for a handoff. The right link6 is currently at [0.32, -0.035, 1.0] m with the gripper open. The remaining bar is near x-y coordinates [-0.225, -0.148] m, an estimated 0.565 m away, so the approach will require multiple targets. I initially consider a central hover at [0.1, -0.15, 1.05] m, estimating the move as about 0.25 m, or 0.248 m. Moving from there to the bar’s x coordinate of -0.225 m would involve another 0.325 m across, so I would need an intermediate x coordinate around -0.05 m. I do not yet know whether the right arm can reach that far into negative X, but I can test it incrementally. The left link6 is at [-0.032, -0.052, 1.005] m, near the green pepper at x-y coordinates [-0.098, -0.12] m and the central elephant at [0, -0.224] m. The left arm can pick the green pepper while the right approaches the bar through a high central path, provided I keep the arms clear of each other. An alternative is to have the left arm pick the nearby bar and stage it at the center front, around x = 0 m, y = -0.25 m, while the right arm puts the green pepper into the middle basket. I could instead carry the bar to a handoff near x = 0.05 m, y = -0.22 m and have the right arm meet it after placing the pepper. That may help with reach, but it adds handoff complexity. Direct left-arm placement into the right basket seems likely to be impossible. Having the right arm handle the central elephant would also require a difficult crossing to the left basket, so I will leave the elephant to the left arm. My preferred sequence is to put the green pepper into the middle basket with the left arm while the right arm approaches and attempts to grasp the left bar. If the right arm cannot reach it, the left arm can stage the bar at the center after placing the pepper. The left arm can then put the central elephant into the left basket, and the right arm can put the remaining bar into the right basket. For the right approach, I consider a central hover at [0.10, -0.15, 1.03] m with a top-down yaw of 45°. The left bar’s long axis runs along world +X, +Y, so a yaw of 45° would make the local Y closing direction point along -X, +Y, perpendicular to the bar. The corresponding wxyz quaternion is approximately [0.653, -0.2706, 0.653, 0.2706]. From the right arm’s current forward-tilted yaw-0° quaternion, [0.683, 0.183, 0.683, 0.183], the change to the left-style quaternion [0.653, -0.271, 0.653, 0.271] might be about 60°, perhaps 1.03 rad and slightly beyond the 1 rad limit. I could use a yaw-45° pose with a 30° tilt for the approach, or first restore the yaw-0° top-down quaternion [0.707, 0, 0.707, 0], a 30° change, and adjust yaw later. However, yaw 0° may be sufficient for this grasp. Its closing direction is world Y, at 45° to the left bar’s +X, +Y long axis. The right arm successfully held the first bar with a similarly angled closing direction, although that bar rotated between the pads. I will therefore retain a yaw-0° top-down orientation for the right arm. A candidate right intermediate target of [0.08, -0.15, 1.03] m would be sqrt(0.24² + 0.115² + 0.03²) = 0.268 m from the current pose, exceeding the 0.25 m limit. I will use [0.12, -0.15, 1.03] m instead, estimating that distance as 0.235 m. Possible later targets are [-0.1, -0.15, 0.98] m, about 0.223 m farther, followed by [-0.225, -0.148, 0.93] m, about 0.134 m farther. If a precheck fails during this crossing, I can reconsider the staged pickup. The left hover target is [-0.098, -0.12, 1.0] m with the yaw-45° top-down orientation. From its current pose, this is approximately a 0.095 m move and a 30° rotation from the forward tilt. The open fingers are currently in the middle basket, and decreasing Y will withdraw them toward the pepper. I estimate the top-down fingertip height at about z = 0.87 m, above the rim at z = 0.85 m; the current tilted fingertip height is about 0.869 m. This appears to provide clearance for withdrawal before grasping the pepper. The right arm’s central approach could pass near the elephant at x-y coordinates [0, -0.224] m, but its target y = -0.15 m and link6 height of 1.03 m should leave the fingertips around z = 0.87 m, above the elephant’s estimated top at 0.825 m. The left arm will be near x = -0.1 m while the right is near x = 0.12 m, which appears to keep them separated. I will use 12 steps to move both open grippers to these hover targets.

The left arm has reached its hover target. In the left wrist view, the green pepper’s center appears near pixel (350, 210), and the remaining chocolate bar is visible near (200, 350). The right arm has reached only x = 0.245 m rather than its target of 0.12 m, perhaps because the 12-step move was only partial. I should continue toward its target [0.12, -0.15, 1.03] m while lowering the left link6 toward z = 0.935 m for the green pepper. Like the red pepper, the green pepper may have a body top around z = 0.80 m and a midpoint around z = 0.775 m. Its high-camera position remains near pixel (273, 246). Intersecting that camera ray at z = 0.78 m gave the same X-Y coordinates as the left hover target, [-0.098, -0.12] m. However, its wrist-image center is at x = 350 pixels rather than the desired 320 pixels. That 30-pixel offset suggests a world-position offset of approximately 0.01 m along the camera’s positive horizontal direction. I can refine the position by intersecting the current wrist-camera ray through an estimated center at (350, 215) with planes at z = 0.78 m or 0.80 m. The stem top may be at z = 0.80 m, while the body midpoint may be at z = 0.775 m. The body center itself appears closer to pixel (350, 210). I’ll calculate the ray intersection at z = 0.78 m to see what world X coordinate it gives.

The green pepper’s top center may be at world x-y coordinates [-0.095, -0.13] m, which would put my y target of -0.12 m off by about 0.01–0.02 m. Intersecting the high-camera ray through pixel (273, 246) at z = 0.78 m gave [-0.0983, -0.1196] m, but the wrist view suggests y ≈ -0.14 m. This may be another discrepancy from using a top-surface pixel rather than a base-center pixel. The base center may be near high-camera pixel (274, 255), with the bottom near image y = 260 pixels. What would intersecting that ray at z = 0.75 m give? I could locate the center directly from the top-down wrist view if the stem height is z = 0.80 m. The stem center may be near wrist pixel (347, 223); I tentatively estimate its ray intersection at x-y coordinates around [-0.097, -0.139] m. However, the high-camera stem pixel may be near (272, 242), whose ray at z = 0.80 m might give approximately [-0.089, -0.11] m. The disagreement suggests that the feature match or assumed height is wrong. I’ll triangulate matching green-pepper features between the high and wrist cameras using least-squares fits between their rays. My candidate stem-center correspondence is high-camera pixel (273, 244) and wrist pixel (347, 226).

The stereo estimate places the green pepper’s top center near [-0.0946, -0.1302, 0.799] m. Its body center at z = 0.775 m may have the same X-Y coordinates, so I’ll target the left link6 at [-0.095, -0.13, 0.935] m. The right arm will continue toward its intermediate hover target of [0.12, -0.15, 1.03] m. I considered four steps for the left descent and 12 for the right move, but robot_act uses the same step count for both arms. The left needs to descend 0.065 m, which may take four steps, while the right needs to move about 0.15 m and may only partly reach its target in eight steps. I’ll use eight steps for both, keeping the grippers open. I consider both planned motions safe.

The green pepper is centered between the left fingers, with link6 at the contact height of z = 0.935 m. I plan to close the left gripper for six steps. The right arm is currently at x = 0.139 m, y = -0.141 m; its wrist view shows the elephant at the bottom right and the green pepper at the bottom center, while the remaining left chocolate bar may be out of view. A direct right-arm target of [-0.225, -0.148, 0.98] m toward the bar is about 0.364 m away, exceeding the 0.25 m limit. I initially consider an intermediate target of [-0.09, -0.15, 1.0] m, about 0.23 m away. Crossing to x = -0.09 m might be reachable, but it would put the right arm in the same area as the left arm, which is holding position at x = -0.095 m, y = -0.13 m around the green pepper. I should avoid that collision risk. Instead, I’ll route the right arm through a hover in front of the objects, then move toward negative X. From its current position [0.139, -0.141, 1.026] m, the target [0, -0.30, 1.03] m is about 0.212 m away and provides 0.17 m of separation in Y from the left arm. The central elephant, near x-y coordinates [0, -0.224] m, lies along this path. At link6 z = 1.03 m, I estimate the fingertips at z = 0.872 m, above the elephant’s estimated top at z = 0.825 m, leaving 47 mm of clearance. I consider this path safe. A subsequent move from [0, -0.30] m toward the right-arm target [-0.225, -0.20, 0.98] m would be about 0.246 m. That would bring it near the bar at x-y coordinates [-0.225, -0.148] m, but it could still pass under or near the left arm at [-0.095, -0.13, 0.935] m. With right link6 around z = 1.0 m and fingertips around z = 0.842 m, could the arms collide if their x-y separation is within 0.13 m? At the proposed final x-y position [-0.225, -0.20] m, the separation from the left arm would be about 0.152 m; body clearance may still be a concern, though it seems manageable. Before that approach, I could lift the green pepper to link6 z = 1.0 m after closure, or hold it higher at [-0.095, -0.13, 1.02] m while the right arm follows the front route at y = -0.30 m. For the immediate action, I’ll use 12 steps to close the left gripper at its current pose while moving the open right gripper to [0, -0.30, 1.03] m. I expect the left closure to complete in six steps and remain commanded closed for the rest. Afterward, I’ll test-lift the green pepper and transport it toward the middle basket while the right arm continues toward the remaining bar, without waiting unnecessarily.

The right arm is open at x = 0.024 m, y = -0.274 m. It is near the left arm, but the separation appears adequate. Its wrist view shows the central elephant near pixel (200, 230) and the remaining chocolate bar at the bottom left. To approach the bar at x-y coordinates [-0.225, -0.148] m, the right arm needs to move left and about 0.13 m forward along +Y, which could bring it into conflict with the left arm at [-0.095, -0.13] m. I need to clear the left arm before the right approaches the bar. The green pepper is at approximately x = -0.095 m, y = -0.13 m. Its transfer to the middle basket should resemble the red pepper’s transfer, with less travel. I could use an intermediate left pose of [-0.10, -0.05, 1.05] m with a 30° tilt, but first I should verify the grasp. One option is a 0.03 m test lift to link6 z = 0.965 m while the right arm holds, followed by transport. I also considered combining the lift with a small right-arm move to [-0.05, -0.28, 1.03] m, then transporting the pepper while approaching the bar. I’ll instead make a 0.035 m left test lift using three control steps. A small right-arm move to [-0.04, -0.29, 1.03] m toward the front left is another possibility, but it does not seem necessary. I’ll hold the right arm in place with its gripper open while testing the pepper grasp.

The green pepper stays fixed in the left wrist view during the lift, confirming that it is held. I’ll move the left link6 from [-0.095, -0.131, 0.968] m to [-0.02, -0.05, 1.005] m with a 30° forward tilt. I estimate the position change as 0.118 m, so perhaps I can combine the rise and forward movement directly. This target is near the middle basket’s center at release height. With the tilt, I estimate the pepper’s y coordinate as -0.05 + 0.093 = 0.043 m and its x coordinate as -0.02 m, placing it inside the blue basket. The right link6 is currently at [0.024, -0.274, 1.03] m. A target of [-0.225, -0.20, 0.98] m toward the remaining bar would be about 0.262 m away, slightly beyond the 0.25 m limit. I could instead use [-0.20, -0.20, 0.99] m, about 0.237 m away, then align with the bar’s estimated x-y position of [-0.225, -0.148] m and descend. Moving the left arm toward the basket will clear space for this right-arm approach. The right path increases y toward -0.20 m while decreasing x, crossing directly above the central elephant near x-y coordinates [0, -0.224] m. At link6 z = 1.0 m with yaw 0°, I estimate the finger bottoms at z = 0.842 m, only 17 mm above the elephant’s estimated top at z = 0.825 m. Could the open gripper straddle the elephant or accidentally engage it? I think it would remain clear, but the fingers are large, and if the top is actually at z = 0.83 m, the clearance would be only 12 mm. For more clearance, I could keep link6 at z = 1.06 m during the crossing and lower afterward. I’ll choose the intermediate target [-0.20, -0.20, 1.04] m, estimated to be 0.239 m away, with the finger bottoms at z = 0.882 m, above the estimated 0.825 m top. Then I can approach the bar. The right arm’s precheck may fail for this crossing, but I’ll attempt it together with the left pepper transfer using 12 steps.

The right-arm approach to x = -0.20 m failed the IK precheck with a position error of about 88 mm, so neither arm moved. Perhaps its maximum cross-reach is around x = -0.11 m. I could try a nearer target at x = -0.08 m or -0.10 m, but staging the bar for the right arm seems better. I’ll finish placing the green pepper with the left arm, then use that arm to move the remaining bar into the right arm’s reach, perhaps at x = -0.08 m or 0 m. One possible staging location is x = -0.05 m, y = -0.25 m. The right arm is currently at x = 0.024 m, y = -0.274 m, so it could likely grasp there. I interpret the roughly 88 mm precheck error for the x = -0.20 m target as suggesting that the search reached approximately x = -0.11 m, making x = -0.05 m seem reachable. I could move the right arm to [-0.05, -0.27, 1.03] m while placing the pepper; I estimate that move at about 0.074 m and expect its precheck to pass. After releasing the pepper, the left arm could pick up the bar near x-y coordinates [-0.225, -0.148] m and carry it to [-0.05, -0.26] m for the right arm to grasp after release. However, that staging location would be close to the central elephant at x-y coordinates [0, -0.224] m. I’ll instead stage the bar farther forward at [-0.08, -0.34] m, giving 0.116 m of separation in Y from the elephant. The right arm should reach y = -0.34 m easily. Can the left arm place the bar there? Its initial x-y position was approximately [-0.30, -0.35] m, so the proposed staging location involves about 0.22 m of lateral displacement and seems likely to be reachable. The right arm can then pick up the bar and carry it to the right basket. Once it moves the bar away, the left arm can approach the central elephant without interference. A direct handoff above the table is another option, but table staging seems easier and more robust, and the task does not prohibit temporary staging. I should keep the open right gripper out of the staging area. A waiting pose of [0.10, -0.32, 1.03] m would give about 0.18 m of separation while the left arm places the bar at [-0.08, -0.34] m. The right arm would approach only after the left retracts. For now, I’ll retain the previous left-arm pepper-placement target and move the open right gripper to [0.08, -0.30, 1.03] m to wait clear of the work. I expect the left target to pass the precheck, and the right target requires only a small X change of 0.056 m. I’ll request 12 control steps.

The left gripper’s reported opening command is now 0.0 despite being commanded closed around the green pepper. In the high-camera view, the pepper appears near pixel (294, 201), at the blue middle basket’s front rim, and in the wrist view it appears low and to the right rather than between the fingers. It seems to have slipped during transport. Was the grasp less secure than the test lift suggested? The lift appeared to confirm a hold, but the current view and opening command suggest that the object has been lost, possibly allowing the fingers to close fully afterward. The measured left link6 position is [-0.049, -0.082, 0.985] m, with wxyz quaternion [0.643, -0.145, 0.65, 0.378], rather than the desired [0.701, -0.092, 0.561, 0.43] for the 30° forward tilt. Perhaps the actual tilt is smaller. This is an unexpected slip or possible collision, so I should stop the transfer and reassess before continuing. Another reading of the high-camera view puts the pepper near pixel (293, 201), at the basket’s front-left edge. It may be on the rim or on the table in front of it. Could it already be contained? I should inspect the high-camera crop and wrist view to decide. In observation 265, the blue basket’s front wall spans approximately image y = 197–213 pixels, and the pepper appears to sit on that edge rather than fully inside. The wrist view places it near (450, 330), at the bottom right, with the blue rim to the left. I am not entirely sure how to interpret the black finger shapes, but the pepper appears outside them to the right. I need to regrasp it and place it fully inside the middle basket before continuing with the bar handoff. First I need to locate the pepper in world coordinates. It may have fallen onto the table in front of the basket, perhaps near x = -0.06 m, y = -0.02 m. Intersecting the high-camera ray through pixel (293, 201) at an assumed height of z = 0.775 m might instead give x ≈ -0.06 m, y ≈ 0.00 m; I have not calculated that yet. I estimate the basket’s front edge at world y ≈ -0.02 m, and the pepper center could be near y = -0.03 m. Another tentative position estimate is [-0.065, -0.01, 0.775] m. The pepper is visible without occlusion in the high-camera view. I can use that view with the current wrist view for triangulation. I’ll first invert the high-camera ray near pixel (294, 200), using assumed heights of z = 0.775 m and z = 0.75 m, to investigate its position.

The green pepper is likely near world position [-0.06, -0.005, 0.775] m, but I am unsure whether it is perched on the blue basket’s front rim. I estimate the basket’s bottom-center y coordinate as 0.06 m and its front-rim y coordinate as perhaps -0.03 m. If the pepper’s center is at y = -0.005 m, it could be inside the front part of the basket but still resting on the rim. In the high-camera view, it appears near the front wall, perhaps with its lower half outside. It might instead be supported on the table just in front of the basket at y = -0.03 m. I need to establish its support and may need to regrasp it. The current left link6 position is [-0.049, -0.082, 0.985] m, with the gripper closed and its orientation not yet top-down. The pepper is approximately 0.08 m farther along positive Y relative to link6 and around z = 0.78 m, so it could be near the fingertips. I could open the gripper and reposition above it, although opening near the object might push it if the fingers are still around it. It appears to have slipped outside the fingers to the right. One possible hover target is [-0.06, -0.005, 1.0] m with a top-down yaw of 45°. I estimate the position change as 0.078 m and the orientation change from the measured quaternion as perhaps 30°. This would move link6 by +0.077 m in Y toward the basket and +0.015 m in Z. However, at link6 z = 1.0 m, the downward fingertips would be at approximately z = 0.842 m, below the estimated rim height of 0.85 m, so the motion could collide with the front rim. A hover height of 1.04 m should provide clearance; I could target [-0.06, -0.005, 1.05] m before descending. Opening in place could release the pepper if it is still held, although it appears to have already slipped. I could command the gripper open while moving to that higher top-down hover. If the pepper is on the front rim, a later downward approach might put one finger inside the basket and the other outside, with the rim obstructing the grasp. Alternatives are a tilted side grasp to avoid the rim or nudging the pepper into the basket. If it is already partly inside and stably supported on the floor, it may already satisfy the placement requirement. Before choosing a recovery motion, I’ll create an enlarged high-camera crop to inspect its position.

I’ll inspect the enlarged crop to clarify whether the green pepper is inside the middle basket or resting on its front rim. Its support and containment are still uncertain, so this view will help guide the recovery motion.

The green pepper has slipped outside the middle basket’s front wall, leaving the left gripper empty. I’ll open and move the left gripper to a clear hover above it, aligning the closing direction parallel to the wall to avoid the rim during the regrasp, while holding the right arm steady.

The full wall-parallel approach failed the IK precheck without moving either arm. I’ll open and raise the left gripper in place while rotating halfway toward that posture, using an intermediate pose for the green pepper regrasp and holding the right arm steady.

The green pepper has moved away from the basket and is now clearly on the open table, appearing vertically oriented in the high-camera image. It was near pixel (294, 201) in observation 265 and is now near (275, 232) in observation 273. It may have rolled or slid when the gripper opened and rose, possibly because the gripper pushed it. This suggests unexpected contact, but the pepper is now clear of the basket and easier to approach. I need to update its location. My tentative estimate for its top is world position [-0.10, -0.08, 0.80] m. A wall-parallel grasp is no longer necessary, so I can return to the usual top-down yaw of 45°. The left arm’s current intermediate wxyz quaternion is [0.602, -0.284, 0.608, 0.433]; I am unsure of its yaw, but the change to the intended quaternion [0.653, -0.271, 0.653, 0.271] should be small. Using high-camera pixel (275, 232) and an assumed center height of z = 0.78 m, I tentatively estimate x = -0.094 m and y = -0.09 m, which I should calculate. Compared with the original high-camera position (273, 246), the pepper is now 14 pixels farther back, suggesting y around -0.09 m rather than -0.12 m; its earlier estimated world position was [-0.095, -0.13] m. Did it roll backward? Relative to observation 265, however, its movement from roughly (293, 201) to (275, 232) is toward the front and left. My revised world x-y estimate is approximately [-0.095, -0.091] m. The left link6 is currently at [-0.052, -0.085, 1.034] m, near the pepper’s estimated x-y position. A possible open-gripper hover target is [-0.095, -0.09, 1.0] m with the yaw-45° top-down orientation, and it may be reachable. Before moving, I’ll refine the pepper’s body-center location using stereo triangulation. Its center appears near pixel (350, 260) in the left wrist image and (275, 232) in the high image. Another tentative top-center correspondence is high-camera pixel (276, 230) with wrist pixel (350, 256). I’ll calculate the camera-ray fits to improve the estimate.

The green pepper’s estimated center is [-0.093, -0.092, 0.79] m. I’ll target the left link6 at [-0.093, -0.092, 0.935] m with a top-down orientation at yaw 45° and the fingers open. From its current position of [-0.052, -0.085, 1.034] m, the target is about 0.108 m away. I estimate the rotation from the intermediate orientation to the yaw-45° posture at perhaps 0.26 rad. I’ll use six control steps to align and descend; the left arm may reach the target in that time. I’ll hold the right arm steady.

The last motion was partial, and the left arm has not reached its target. The green pepper still appears near pixel (325, 260) in the wrist view. The left link6 is currently at x = -0.067 m, y = -0.085 m, compared with the target x = -0.093 m, y = -0.092 m, so only a small lateral adjustment remains. Its height is z = 0.991 m, with a target of z = 0.935 m. I’ll continue toward the same target for six control steps with the left gripper open.

The green pepper now appears large and centered between the left fingers. The left link6 height is z = 0.945 m, close to the target of 0.935 m. The pepper is lying on its side and appears tall and vertical in the view, with an estimated body-center height of z = 0.79 m. The estimated fingertip height of z = 0.7874 m looks suitable for grasping. I should check clearance from the remaining chocolate bar. It appears near wrist-image pixel (230, 450), potentially close to the left finger. In the high-camera view, the bar is near (214, 264) and the pepper near (275, 232), with an estimated separation of 0.14 m, so I consider the grasp motion safe. I’ll close the left gripper for six control steps while continuing toward the same z = 0.935 m target, descending the remaining 0.01 m. I’ll hold the right arm steady, then perform a test lift to check the grasp.

The left gripper’s opening command is 0.409, similar to the previous value of about 0.4 when the pepper appeared held. Did the earlier slip occur because the gripper was not fully closed during transport? Its opening command was 0.402 then, essentially the same, so contact with the basket rim seems a more likely explanation than an insecure grasp. In observation 265, the green pepper slipped at the middle basket’s front wall. The earlier link6 target moved from y = -0.13 m toward -0.05 m with a 30° forward tilt and a target height of z = 1.005 m. Did that tilt move the object forward too quickly while it was too low? I estimated its bottom at z = 0.783 m after the initial lift. Tilting should move the bottom offset forward in Y and reduce its downward Z offset, raising the bottom, so I initially expected it to clear the rim. However, the measured left orientation was unexpected, and the opening command fell to 0, possibly after the gripper struck the rim. The target x-y coordinates [-0.02, -0.05] m would put the pepper’s center at about y = 0.043 m. Its path from y = -0.13 m to 0.043 m crossed the estimated front rim at y = 0 m, where I expected the bottom to be around z = 0.85 m or above. Yet the arm only partly reached the target: its measured x-y position was [-0.049, -0.082] m at z = 0.985 m with only a partial tilt. The pepper’s center may then have been near y = -0.02 m, with its bottom around z = 0.82 m, below the estimated rim height of 0.85 m. That would explain a rim collision. This time I’ll transfer the pepper higher and more slowly, ensuring its bottom clears the rim before crossing. I could raise link6 in place to z = 1.10 m, or perhaps only 1.06 m if reach limits intervene, then move toward the basket at z = 1.08 m, tilt and center the pepper, and lower only after it is inside. The red pepper’s successful transfer used a target height of z = 1.04 m and reached about 1.033 m, with an estimated bottom height of 0.87 m. The green pepper’s earlier target of 1.005 m was too low and appears to have caused the rim collision. I considered a 0.04 m test lift to link6 z = 0.975 m over three steps, followed by a raise to 1.07 m at unchanged x-y coordinates. I could instead lift directly to 1.0 m, but I should first verify this regrasp with a small lift. I’ll use a 0.035 m lift to left link6 z = 0.97 m over three steps, keeping its orientation steady and gripper closed while holding the right arm in place. Then I can proceed with the higher transfer.

The pepper remains fixed relative to the wrist during the lift, confirming the regrasp. I initially consider raising the left link6 to z = 1.08 m at unchanged x-y coordinates with the gripper pointing down for eight steps, while holding the right arm steady. I could then move toward the middle basket at [-0.02, -0.035, 1.08] m with a 30° forward tilt. The current x-y position is approximately [-0.093, -0.092] m, already close to the basket. Alternatively, I could combine the raise and a small forward move with a target of [-0.05, -0.055, 1.08] m and the same 30° tilt. I estimate the pepper’s bottom height as 1.08 - 0.161 = 0.919 m, above the rim. I estimate the move as 0.068 m and consider eight steps. Joint constraints might leave link6 at only z = 1.03 m, but the estimated bottom would still be at z = 0.869 m. Commanding z = 1.10 m might help it reach about 1.06 m, although reach remains a concern. From the current y = -0.092 m and z = 0.968 m, I estimate the distance to [-0.05, -0.055, 1.10] m as 0.141 m and think the arm could likely rise to about 1.07 m. I consider ten steps followed by inspection, with no movement of the right arm. I decide to combine the higher raise and basket approach, considering a target of [-0.04, -0.04, 1.10] m with a 30° forward tilt. I estimate that this would move the pepper’s y coordinate from -0.092 m to about +0.05 m, with its bottom at about z = 0.94 m. Even a partial arrival near [-0.06, -0.07, 1.03] m could leave the bottom around z = 0.87 m, still above the rim. This should avoid the problem caused by the earlier low target of z = 1.005 m. I’ll use twelve steps, inspect the actual position, and lower the pepper only once it is centered over the opening.

The forward transfer target at z = 1.1 m failed the precheck, so I’ll use an intermediate raise in place. I’ll first keep the left gripper pointing down and target z = 1.06 m rather than 1.08 m, then tilt and move forward at z = 1.06 m. The current link6 height is 0.968 m, so the planned rise is 0.092 m. Earlier forward poses made reaching 1.08 m difficult, but at y = -0.092 m, a height of 1.06 m may be reachable. I initially considered six steps for the raise, but I’ll use eight steps with the left target at [-0.093, -0.092, 1.06] m, maintaining the top-down orientation and closed gripper. I’ll hold the right arm steady.

The left link6 is now at z = 1.046 m. In the high-camera view, the green pepper appears near pixel (263, 204), above the middle basket’s front-left rim. With the gripper pointing down, I estimate the pepper’s bottom height as 1.046 - 0.185 = 0.861 m, giving 11 mm of clearance above the estimated rim height of 0.85 m. A 30° forward tilt should raise its bottom to about z = 0.885 m and move it approximately +0.092 m along Y. Moving link6 to y = -0.035 m, a +0.06 m change, should put the pepper’s center near y = 0.058 m, inside the basket. I’ll target the left link6 at [-0.02, -0.035, 1.06] m with that tilt. I estimate the position change as 0.104 m and the orientation change as 30°. Even if the arm only reaches about z = 1.04 m, I estimate the pepper’s bottom at z = 0.879 m, which should clear the rim. I’ll use eight control steps while keeping the pepper grasped and holding the right arm steady.

The precheck’s position error was only 6.3 mm, so the target seems nearly reachable. I’ll try a slightly nearer and lower left link6 target of [-0.03, -0.045, 1.055] m: compared with the rejected target, this is 0.01 m less forward, -0.01 m in X, and -0.005 m in Z. This adjustment will likely help. With the forward tilt, I estimate the pepper’s center at y = -0.045 + 0.092 = 0.047 m, inside the middle basket. I’ll use eight control steps.

The green pepper is now above the interior of the blue middle basket, near high-camera pixel (293, 169), with the red pepper near (326, 168). I estimate the green pepper’s world x coordinate as -0.04 m. Its y coordinate is less certain, but with the actual tilt around 25°, I estimate its center at y = -0.054 + 0.08 = 0.026 m, inside the front-middle area. Its estimated bottom height is z = 1.051 - 0.16 = 0.891 m, above the rim. I could lower link6 to z = 1.005 m while finishing the tilt, perhaps adjusting the horizontal target to x = -0.02 m, y = -0.04 m. The green pepper is currently over the basket’s left side, while the red pepper is near the center. Releasing now from the estimated bottom height of 0.891 m would give a 0.13 m drop to the floor. Lowering link6 to z = 1.02 m, with the pepper’s bottom around z = 0.86 m, seems safer before release. I expect no rim collision because the pepper is already over the interior. I’ll target the left link6 at [-0.03, -0.045, 1.015] m and finish the desired 30° tilt over five control steps, keeping the gripper closed. Then I’ll release the pepper. The right arm will remain at its waiting pose.

With the left link6 at z = 1.027 m, I estimate the green pepper’s bottom at z = 0.866 m, just above the rim. The pepper is entirely within the middle basket’s footprint, at approximately x = -0.029 m and y = 0.05 m. I’ll open the left gripper for three control steps to release it, then verify its placement.

The green pepper is stable inside the middle basket, touching the red pepper. The central elephant and the left chocolate bar remain. I’ll stage the bar for the right arm to pick up. The left link6 is currently at [-0.029, -0.043, 1.027] m, with a 30° forward tilt and the gripper open above the blue basket. The right arm is waiting at [0.08, -0.3, 1.03] m with its gripper open and pointing down. I initially consider moving the left arm to a bar hover at [-0.225, -0.148, 1.0] m with a top-down yaw of 45°. I estimate the distance as 0.222 m, within the 0.25 m limit, and the orientation change as 30°. That path moves toward negative X and negative Y, away from the basket, while lowering link6 by 0.027 m. Are the open fingers clear of the rim throughout? At the current tilt, I estimate the fingertip height as 1.027 - 0.136 = 0.891 m, above the rim. At the proposed top-down height of 1.0 m, the tips would be at 0.842 m, slightly below the rim. Although the arm would be moving outside the basket, the fingers could clip the front rim early in the motion. One safer alternative is to raise and withdraw first to [-0.08, -0.12, 1.05] m with the gripper pointing down, then approach the bar. I could also use a bar hover height of 1.04 m, raising link6 by 0.013 m and putting the fingertips at 0.882 m, above the rim. I still estimate the move as about 0.222 m. I’ll choose the hover target [-0.225, -0.148, 1.03] m with a top-down yaw of 45°. I briefly consider moving the right arm to a staging-area waiting pose at [0.08, -0.36, 1.0] m, but its current pose should not interfere with the left arm’s path toward negative X. I’ll keep the right arm where it is. Once the left arm is hovering, I’ll use its wrist view to localize the bar precisely before grasping. The remaining bar is flat like the first one, and a top-down yaw of 45° aligns the closing direction exactly perpendicular to its long axis. Its earlier estimated world position was [-0.2255, -0.1484, 0.758] m. Descending with the left arm at x = -0.225 m may be easier than the right arm’s descent at x = 0.386 m, so I think a link6 height of 0.915 m is likely reachable. For now, I’ll use 12 control steps to move to the hover pose with both grippers open.

The left arm has only partly reached its hover target, with measured x = -0.149 m and y = -0.105 m. The bar appears centered near pixel (300, 280) in the left wrist view, but grasp alignment still needs to be established after reaching the target. Should I continue toward [-0.225, -0.148, 1.0] m? I previously commanded z = 1.03 m; perhaps I should first reach the intended X-Y position at z = 1.0 m. I’m considering another eight steps with the right arm held steady, but have not decided whether to use z = 1.0 m or 1.03 m. Before moving, I’ll refine the bar’s world position using the current camera views. Its estimated center is at wrist pixel (300, 280) and high-camera pixel (213, 264). Triangulation should be consistent with an assumed flat top at z = 0.758 m. For now, I’ll intersect the left wrist-camera rays with that height plane to estimate the bar’s world position.

The closer wrist view places the bar’s estimated X-Y center at [-0.216, -0.156] m rather than [-0.225, -0.148] m. I attribute this small discrepancy to perspective in the high-camera view, as before, and will adjust the grasp target accordingly. From the left arm’s current X-Y position of [-0.149, -0.105] m, I estimate the horizontal move as 0.083 m. Descending from its current link6 height of 1.031 m to 0.93 m would add a 0.101 m descent, giving an estimated total move of 0.131 m. Eight steps might achieve only part of that motion. I could first align at a hover height of 1.0 m and then descend. Instead, I’ll target the left link6 at [-0.216, -0.156, 0.99] m, combining alignment with a 0.041 m descent over eight steps. I’ll keep the fingers open and inspect the next observation before continuing.

The chocolate bar’s center appears near pixel (316, 205) in the left wrist view, nearly centered between the fingers. I’ll finish moving to the X-Y target and lower the left link6 to z = 0.93 m. I estimate the remaining horizontal correction as 0.027 m and the descent as 0.075 m. Six control steps may be enough, so I’ll target [-0.216, -0.156, 0.93] m with the left gripper open while holding the right arm steady.

The bar appears centered near pixel (330, 210) in the left wrist view, and the gripper is open. Should I lower the left link6 by 0.02 m to z = 0.928 m? Its current height is 0.948 m, with an estimated fingertip height of 0.7904 m, about 32 mm above the estimated bar top at 0.758 m. A target height of z = 0.92 m would put the fingertips at approximately 0.7624 m, similar to the right arm’s earlier successful closure at link6 z = 0.924 m. With the left arm currently at x = -0.211 m, I think it can likely descend to 0.92 m. I’ll use three control steps to target the left link6 at [-0.216, -0.156, 0.92] m with the gripper open, then close it afterward.

The left gripper is at contact height, with link6 at z = 0.923 m, comparable to the right arm’s successful grasp of the other chocolate bar. I’ll close the left gripper for six control steps, then perform a test lift. The right arm will remain at its waiting pose.

The left gripper’s opening command is 0.19, compared with 0.1 when the right gripper held the other thin chocolate bar, so this bar is likely held. I’ll make a 0.035 m test lift to left link6 z = 0.958 m over three control steps and check whether the bar moves with the gripper. After verifying the grasp, I’ll stage it for the right arm to pick up.

The bar stays fixed relative to the left wrist during the lift, so the grasp looks secure. I’ll stage it on the front table for the right arm to pick up. I initially consider x = -0.05 m, y = -0.32 m, then a left link6 target of [-0.08, -0.32, 0.93] m for release. Assuming the table and the bar’s initial bottom are at z = 0.75 m, the original link6 height of 0.923 m gives a bottom offset of 0.173 m. Releasing at link6 z = 0.94 m would put the bottom at z = 0.767 m, 17 mm above the table, which seems like a safe drop. A staging center at [-0.08, -0.32] m would be about 0.16 m from the right arm’s waiting position at [0.08, -0.3, 1.03] m. With grippers about 0.1 m wide, the arms would be close, but I think there is enough clearance. I estimate the left transport from [-0.216, -0.156, 0.956] m to [-0.08, -0.32, 0.96] m as 0.214 m, retaining the top-down yaw of 45°. At link6 z = 0.96 m, the bar’s bottom would be around z = 0.787 m; lowering to 0.93 m afterward would put it at 0.757 m for release. The path moves toward negative Y, away from the baskets and elephant, and appears clear. The right arm can hold its position. After staging, I need to avoid crossing the arms as the left moves toward the elephant at [0, -0.224] m and the right moves left toward the bar. I prefer to release the bar, move the left arm clear toward the elephant while the right waits for one action, and only then approach with the right arm. Simultaneous motion might also work if the left approaches the elephant at y = -0.20 m and the right approaches the staging area at y = -0.34 m, giving 0.14 m of Y separation, but body clearance remains a consideration. I’ll use the right approach target after the left has moved. I also consider staging farther forward at [-0.10, -0.36] m. The right arm’s move there from [0.08, -0.3] m would be about 0.19 m, and I estimate the left move as 0.236 m, within the 0.25 m limit, with a target height of 0.96 m. This would separate the right approach at y = -0.36 m from the left elephant approach at y = -0.22 m by 0.14 m. I settle on [-0.08, -0.35] m instead, estimating the transport distance as 0.223 m. The right arm can likely reach that point, and its estimated 0.155 m separation from the elephant seems sufficient. I’ll carry the bar to left link6 target [-0.08, -0.35, 0.96] m over 12 steps, keeping the top-down yaw of 45° and the gripper closed. The right arm will remain open at [0.08, -0.3, 1.03] m. The final wrist separation is 0.16 m in X and 0.05 m in Y, about 0.168 m overall, which appears adequate. The right fingertips are around z = 0.872 m, while the held bar’s estimated bottom is at 0.787 m, and the arms remain separated horizontally. The bar rotated to appear vertical in the wrist view after closure. Its long axis may lie along local Z; at the top-down yaw of 45°, local Z has horizontal components [0.707, 0.707]. For a bar about 0.1 m long, I estimate that it extends along positive X and Y by up to 0.05 m from its center. At the chosen staging center, the end toward the right arm might be near [-0.045, -0.315] m, about 0.125 m from the right gripper at [0.08, -0.3] m. That also appears clear enough for this transport.

The staging move is only partly complete: the left link6 is at x = -0.129 m, y = -0.284 m. I’ll continue toward the target [-0.08, -0.35, 0.94] m for eight control steps, lowering it by 0.019 m while keeping the bar grasped. The right arm will remain at its waiting pose. Once the bar reaches the staging position, I’ll release it.

The bar may be near the front table edge: it appears near pixel (248, 388) in the high-camera view, but the table extends farther toward the bottom of the image, so the staging area looks suitable. The right wrist view shows the bar near the bottom right and the elephant near the top left. I’ll open the left gripper for three control steps to release the bar while holding the right arm steady. Afterward, I’ll retract the left arm toward the elephant; this action will only release the bar.

The staged bar is stable on the front table area. I plan to move the left arm to the elephant and the right arm to the bar. The left link6 is currently at [-0.081, -0.349, 0.94] m with the gripper open. An elephant hover target of [0, -0.224, 1.02] m, with a top-down yaw of 45°, would be about 0.163 m away and require a 0.08 m rise. That path moves forward and right, including +0.125 m along Y. However, the staged bar is directly below the left gripper near [-0.08, -0.35] m. I estimate the fingertips at z = 0.782 m and the bar’s top at z = 0.758 m, leaving 24 mm of clearance. The open fingers still straddle the bar, so moving along positive Y could push it. I should withdraw vertically before moving sideways. I initially consider raising the left link6 to z = 1.03 m while maintaining its top-down orientation. The right arm must not approach the bar at [-0.08, -0.35, 1.03] m while the left arm is raising in the same location, because the arms would collide. I’ll first raise the left link6 in place to z = 1.04 m over six control steps, keeping its gripper open and holding the right arm steady. After the left arm is clear, I can move it toward the elephant and bring the right arm toward the bar with adequate separation. Another option is to move the left arm farther forward to y = -0.42 m before raising it, but I am concerned about the arm near the table edge. A vertical withdrawal is the safest choice.

The left arm rose only 0.063 m and is now at link6 z = 1.003 m. I estimate its fingertips at z = 0.845 m, giving 87 mm of clearance above the bar’s estimated top at z = 0.758 m. That is enough to move away. I initially consider moving both arms simultaneously: the left to an elephant hover at [0, -0.224, 1.03] m and the right to a bar hover at [-0.081, -0.349, 1.03] m. The right arm would move from x-y coordinates [0.08, -0.3] m, an estimated distance of 0.169 m, while the left moves +0.126 m along Y. However, their paths could converge near the staging area during a 12-step action. Halfway along the proposed paths, I estimate the left x-y position at [-0.041, -0.287] m and the right at [0, -0.325] m, with only 0.055 m of separation. That is too close and risks a collision. I should sequence the movements or choose separated paths. Moving the right arm first while the left holds would also risk collision, because the right target is near the left arm’s current position. I’ll therefore move only the left arm to the elephant hover for 12 steps, keeping the right arm stationary and both grippers open. Once the left arm is at x = 0 m, y = -0.224 m, the right can approach the staged bar near [-0.08, -0.35] m; I estimate their separation then at about 0.14 m, which seems adequate.

The right arm moved despite being commanded to hold its pose. I supplied its measured position from observation 385, [0.08, -0.3, 1.03] m, with the yaw-0° orientation, but observation 397 reports [0.122, -0.253, 1.04] m and a changed quaternion. Why did it move? Contact with the left arm during the approach may have pushed it, though I have not confirmed a collision. If there was contact, I need to stop and replan. The arms look close in the high-camera view: the left gripper is near pixel (340, 300), and the right is near (415, 280). Their bodies or forearms may have touched as the left arm moved toward the center. The current left and right X-Y positions are [-0.018, -0.276] m and [0.122, -0.253] m, with an estimated separation of 0.142 m. With each gripper about 0.1 m wide, contact seems possible. Visually, the grippers appear about 70 pixels apart, or roughly 0.12 m, so direct gripper contact is unclear; the arms themselves may have touched. Could the right arm have moved to avoid the left? I do not think native obstacle avoidance explains this, so physical contact seems more likely. I should be cautious. The elephant is now hidden behind the left wrist, the staged bar remains near pixel (273, 372), and the basket contents look stable. No object appears to have been knocked aside. I could continue the left approach to [0, -0.224, 1.03] m while holding the right arm at its current measured position, [0.122, -0.253, 1.04] m. Its current orientation is no longer yaw 0°, so requesting the original orientation would rotate it even at that position. Instead, I will move the right arm away to [0.18, -0.32, 1.05] m with its gripper open and the yaw-0° downward orientation. I estimate this move as 0.093 m and the orientation change as 0.4 rad. It moves rightward and toward the front, away from the left arm, and appears safe. I’ll use eight control steps to separate the arms while the left finishes its short, approximately 0.06 m approach to [0, -0.224, 1.03] m, also with its gripper open. Once the left arm is over the elephant, the right arm can approach the staged bar.

The arms are now separated. The middle elephant appears centered near wrist-image pixel (315, 190), or roughly (320, 190) for the whole object, and near high-camera pixel (317, 290). The left link6 is at X-Y coordinates [0, -0.224] m. I should refine the elephant’s body center, perhaps by triangulating the medallion between the high and wrist views. In observation 405, the medallion appears near wrist pixel (275, 225), rather than x = 320 pixels. I estimate its world position as perhaps [-0.017, -0.21, 0.825] m; the earlier whole-object estimate from the high view was [-0.004, -0.224, 0.79] m. The gripper center’s horizontal image coordinate is about 320 pixels, but I am unsure of its vertical coordinate. I want contact around the body midpoint. I need to align the closing direction across the elephant’s long axis. In the wrist view, its head is on the right near (380, 200), and its rear is on the left near (250, 170). In the high view, I initially estimate the head at (327, 295) and the rear at (305, 283). Could its long axis run along world +X, +Y, like the first elephant, but face the other way? On reconsideration, the current yaw-45° wrist camera’s horizontal world direction is approximately [0.707, -0.707]. The elephant appears horizontal in this view, unlike the first elephant, whose head pointed toward the bottom in observation 52 and whose long axis ran along world -X, -Y. For the middle elephant, another high-view estimate puts the rear at (306, 284) and the head at (326, 295), a pixel displacement of [+20, +11]. For a flat object, this supports a world long-axis direction of +X, -Y. The current left gripper’s local Y closing direction has world components [-0.707, +0.707], so it is parallel to the elephant’s long axis, pointing the opposite way. I should rotate the gripper 90° about world Z from top-down yaw +45° to yaw -45°, where local Y points along world +X, +Y and closes perpendicular to the body. Yaw 0°, closing along world Y at 45° to the body, is another acceptable option, but yaw -45° should be better. Grasping along the long axis at yaw +45° might be possible if the body is about 0.09 m long and the open gripper spans about 0.1 m, but it would likely be less stable. I’ll split the 90° rotation into two 45° actions, first reaching yaw 0° with wxyz quaternion [0.707, 0, 0.707, 0], then yaw -45° with [0.653, +0.2706, 0.653, -0.2706]. At link6 z = 1.03 m, I estimate the fingertips at z = 0.872 m, about 47 mm above the elephant’s estimated top at z = 0.825 m. Rotating the open fingers at this hover height appears safe. I’ll keep the current X-Y position for now; the body center may be offset, and the wrist view will change after rotation. The right arm could approach the staged bar while the left rotates. From its current position [0.179, -0.318, 1.05] m, a bar-hover target of [-0.08, -0.349, 1.03] m is about 0.26 m away, slightly beyond the 0.25 m limit. An intermediate target of [-0.05, -0.36, 1.03] m would be about 0.233 m away. Its X-Y separation from the left elephant position [0, -0.224] m would be about 0.145 m, with 0.136 m of separation along Y. That may provide clearance during the left fingers’ sweep, but the arms could still come close. I could keep the right arm away until the left has rotated, grasped, and lifted the elephant; there are 695 control steps remaining, so efficiency is not critical. Another option is to approach farther from the front at X-Y coordinates [0, -0.38] m, giving 0.156 m of separation from the left arm. The eventual bar pickup near [-0.08, -0.35] m would still be about 0.145 m from the left elephant position. I’ll first rotate the left gripper to yaw 0° in place while moving the open right gripper to [0, -0.38, 1.03] m, about 0.19 m from its current position. The right wrist currently shows the elephant on the left and the bar near the bottom. This move brings it closer to the bar from the front. While the left rotates around [0, -0.224] m, the right path decreases Y from -0.318 m toward -0.38 m, and I estimate that the separation remains greater than 0.15 m. This appears safe. I’ll use 10 steps, then finish the left rotation to yaw -45° and align the right gripper with the bar. The bar’s exact staging position still needs refinement. In the current high view, I tentatively read its center near (273, 374), or (272, 374), with another estimate around (273, 372). I can later invert the camera ray using an assumed bar height of z = 0.758 m and refine the position from the right wrist view. For now, the right target [0, -0.38, 1.03] m is only an approach hover.

The right arm reached X-Y coordinates [0.076, -0.353] m rather than its target of [0, -0.38] m; perhaps proximity to the left arm constrained the motion. The left arm is at X-Y coordinates [-0.002, -0.225] m, with an estimated separation of 0.153 m, which seems adequate for now. In the right wrist view, the bar appears near pixel (330, 365), and the elephant is at the left edge. The left rotation is only partial. Its current wxyz quaternion, [0.689, -0.124, 0.704, 0.119], appears to lie between yaw 45° and yaw 0°, perhaps at yaw 20°. Moving directly to the final yaw of -45° would require approximately 65°, or 1.13 rad, exceeding the 1 rad action limit. I should first finish the yaw-0° intermediate orientation, using quaternion [0.707, 0, 0.707, 0], with about 20° remaining, and then turn to yaw -45°. I could simultaneously move the right arm to the bar-hover target [-0.08, -0.35, 1.03] m, about 0.156 m from its current position. However, that path moves toward negative X at y = -0.35 m, while the left arm is near [0, -0.225] m in X and Y. The Y separation would be only 0.125 m. Each open gripper is about 0.1 m wide along local Y, and its lateral extent may be about 0.08 m on either side, suggesting a desired separation greater than 0.16 m. The final estimated separation of 0.150 m is borderline, although it might be safe; the earlier staging arrangement had 0.168 m of separation without a collision. I could increase clearance by hovering the right arm at y = -0.39 m, but if the bar is at y = -0.35 m, the gripper would eventually need to align with its center for grasping. The better sequence is to hold the right arm where it is while the left finishes rotating, descends, grasps, and lifts the elephant. Once the left carries the elephant toward the left basket, toward x = -0.3 m and y = +0.06 m, the right arm will have free access to the bar. I’ll hold the right arm at its measured position [0.076, -0.353, 1.036] m and current quaternion, with its gripper open. Supplying its measured pose should avoid commanded movement; I attribute its earlier drift while holding to a collision rather than the hold command. The arms now seem sufficiently separated. For this action, I’ll use eight steps to finish the left yaw-0° orientation at the hover target [0, -0.224, 1.03] m, keeping its gripper open. The yaw--45° rotation will follow afterward.

The left gripper has reached yaw 0°. I’ll rotate it the final 45° to yaw -45°, using quaternion [0.65328148, 0.27059805, 0.65328148, -0.27059805] in wxyz order, so the pads will close across the elephant’s body. I’ll keep its position unchanged and use eight control steps while holding the right arm steady.

The left gripper has again rotated only about 20°, so it has not reached the final orientation target. I’ll continue toward the same target for another eight control steps, keeping the left gripper open and holding the right arm steady.

The left gripper is near yaw -40°, and the elephant appears vertical in the wrist view. The local Y closing direction points along world (+X, +Y), perpendicular to the elephant’s long axis along (+X, -Y), so the alignment looks suitable. Perhaps another six control steps will finish the orientation before I descend to grasp. I need to locate the grasp center first. In the wrist image, I estimate the whole elephant’s center near pixel (350, 180), the medallion near (340, 240), and the head near (350, 110). The link6 axis is at approximately world X-Y coordinates [0, -0.224] m. Where does that axis project at the estimated mid-body height of z = 0.79 m? The body’s horizontal image coordinate of 350 pixels is about 30 pixels away from 320, suggesting that the current alignment may need correction. At yaw -45°, the camera’s horizontal world direction is approximately (0.707, 0.707), matching the closing direction, so this offset is across the body’s width. Another estimate puts the medallion at pixel (343, 240). A contact center between the fingers would appear around (320, 275) with link6 at z = 0.947 m; at the current hover height of z = 1.03 m, I tentatively expect a mid-body point at z = 0.79 m to project near v = 169 pixels. The medallion appearing at v = 240 pixels may reflect an X-Y offset along the camera’s tilted viewing direction. I could triangulate the medallion with the high-camera view, but the elephant is partly occluded by the gripper in observation 439. Are its feet visible? The medallion might be near high-camera pixel (309, 287), but it may be occluded too. I’ll instead use the current wrist calibration to intersect the ray through an estimated medallion center at pixel (341, 240) with the assumed medallion height of z = 0.825 m. A possible mid-body grasp position is world X-Y coordinates [-0.005, -0.22] m, but that remains tentative. I’ll calculate the medallion’s X-Y position and the current gripper-axis projection at z = 0.79 m before choosing the correction.

The estimated world position of the medallion on the elephant’s back, [-0.018, -0.218, 0.825] m, looks plausible. The body center may be near X-Y coordinates [-0.01, -0.225] m, so the current gripper position at [0, -0.225] m is close. Does wrist-image pixel (350, 180) represent the top of the head or the body? The medallion center may actually be near pixel (342, 238), consistent with an estimated top height of z = 0.825 m. I’ll use the medallion/body midpoint at X-Y coordinates [-0.018, -0.218] m as the grasp center. I estimate that the current position at [0, -0.225] m has an offset of 0.019 m along the camera’s horizontal direction, producing the medallion’s approximately +21-pixel horizontal offset. Moving to the estimated center should correct this. The intended contact is on the sides at mid-body height, rather than on the top, but I’ll use the same X-Y coordinates. I’ll target the left link6 at [-0.018, -0.218, 0.947] m and finish its yaw -45° orientation, keeping the gripper open. With the elephant’s estimated top at z = 0.825 m and mid-body at z = 0.79 m, a link6 height of 0.947 m matches the height used for the first left elephant. From the current z = 1.03 m, this is a descent of 0.083 m. I’ll use six control steps, inspect the result, and hold the right arm steady.

The elephant remains centered, and the gripper orientation is correct. I’ll continue lowering the open left gripper to a link6 height of z = 0.947 m over three control steps, then close it afterward. The right arm will remain at its waiting pose.

The elephant fills the wrist-camera view, with its torso between the pads. I’ll close the left gripper for six control steps, then perform a test lift to check the grasp. I’ll hold the right arm steady.

The elephant appears held, with the left gripper’s opening command at 0.29, similar to when the rabbit was held. I’ll test the grasp by lifting the left link6 by 0.035 m to z = 0.983 m over three control steps, keeping its orientation fixed and the gripper closed. I’ll hold the right arm steady.

The elephant stays fixed relative to the gripper during the lift, so the grasp looks secure. I can now move it toward the left basket while the right arm approaches the staged bar, since the left arm will move away from the center. The left link6 is at [-0.019, -0.218, 0.981] m. I am considering a basket approach at [-0.30, -0.04, 1.06] m with a 30° forward tilt. The first elephant’s placement used yaw +45° with that tilt, but this gripper is currently top-down at yaw -45°. I need to compute the new quaternion by applying a 30° rotation about world X to the yaw--45° top-down orientation. Keeping it top-down and approaching with link6 near y = -0.03 m is another possibility, but the earlier top-down left-basket approach failed, so I’ll use the forward tilt. This changes the orientation by 30°. The direct position target is sqrt(0.281² + 0.178² + 0.079²) = 0.342 m away, exceeding the 0.25 m command limit. I’ll first use the intermediate position [-0.16, -0.12, 1.06] m, about 0.194 m away, then proceed to the basket approach. This moves the left arm leftward and back, away from the right arm, so I consider the simultaneous approach safe. The right link6 is at [0.076, -0.353, 1.036] m. Its proposed bar hover is [-0.08, -0.35, 1.0] m, about 0.16 m away, with the yaw-0° top-down wxyz quaternion [0.707, 0, 0.707, 0]. Only a small orientation adjustment is needed. The staged bar’s actual center may be near [-0.081, -0.349] m in X and Y, with its top at z = 0.758 m. I think yaw 0° will provide a suitable grasp, with closure along world Y at 45° to the bar’s long axis. In the current right wrist view, the bar appears diagonal from pixel (260, 310) to (405, 425), a displacement of +145 pixels horizontally and +115 pixels downward. At approximately yaw 0°, image horizontal corresponds to world -Y and image upward to world +X. I tentatively interpret the downward component as world -X, giving a long-axis direction of (-X, -Y), equivalent to (+X, +Y). The right arm can therefore use yaw 0° as it did for the previous bar. I’ll hover at link6 z = 1.0 m and refine the bar’s location before grasping. First, I’ll compute the left gripper’s quaternion for yaw -45° with the 30° forward tilt.

The elephant stayed fixed in the wrist view during the test lift, so I’ll carry it through a raised, forward-tilted intermediate pose toward the left basket. As the left arm moves away from the center, I’ll bring the open right gripper over the staged chocolate bar for grasp alignment.

In the high-camera view, the held elephant appears near pixel (240, 190), above the white basket’s front-right edge. Could it be contacting the basket, and is its bottom already inside? The current left link6 position is [-0.135, -0.138, 1.045] m with a 30° forward tilt. I estimate the object center’s y coordinate as -0.138 + 0.098 = -0.04 m, in front of the basket at y = 0 m, and its bottom height as 0.874 m, above the rim. On that estimate, it has clearance. I’ll continue toward the left basket target [-0.30, -0.04, 1.06] m, approximately 0.18 m away, retaining the same tilt and closed gripper. The staged bar appears centered near pixel (330, 165) in the right wrist view, but the right link6 x coordinate is -0.064 m rather than the intended -0.08 m, so a small correction remains. Its current height is 1.001 m, and the estimated bar top is at 0.758 m. I need to descend toward a link6 height of 0.923 m. I could use the intermediate target [-0.081, -0.349, 0.93] m for six steps with the gripper open. The two paths are separated, so I’ll use ten steps for both arms. The left target might fail the precheck: the earlier yaw-45° target [-0.29, 0.02, 1.06] m failed, but the tilted approach at [-0.30, -0.04] m succeeded. I expect this tilted target at x = -0.30 m and y = -0.04 m to work. The right target calls for a 0.071 m descent, and I’ll allow the same ten steps.

The elephant appears to be above the white left basket, perhaps near its center-right area. The current left link6 coordinates are x = -0.272 m and y = -0.059 m. I estimate the object’s center at approximately x = -0.272 m, y = 0.04 m, inside the opening. I’ll lower link6 to z = 1.01 m for release, as before. The target [-0.30, -0.04, 1.01] m requires small adjustments of 0.028 m in X, 0.019 m in Y, and 0.045 m in Z. Using the estimated bottom offset of 0.170 m, the elephant’s bottom would be at 1.01 - 0.170 = 0.84 m, inside the basket. The staged bar looks large in the right wrist view, with its center perhaps near pixel (330, 190). Right link6 is at z = 0.93 m, putting the fingertips at approximately z = 0.7724 m, about 14 mm above the estimated bar top at z = 0.758 m. The earlier right-hand bar grasp succeeded at link6 z = 0.924 m. I’ll lower this gripper to z = 0.923 m before closing it. I initially consider three steps for that descent, then four steps for the combined left and right motions. I’ll use five steps, keeping the elephant grasped and the right gripper open.

The held elephant is close to the first elephant in the left basket, possibly above it or touching it. I initially considered releasing the left gripper for three steps while closing the right gripper for six steps. The new elephant might land on the first toy. The task only requires containment, so resting on another toy could be acceptable if both remain stable, but I am unsure whether the new elephant would tip. My initial high-camera estimates place the held elephant near pixel (188, 177) and the first elephant near (190, 180). In observation 484, I estimate the first elephant near (190, 181) and the held one near (190, 172), slightly farther back. The wrist view also suggests that the first elephant is behind and to the right of the held one. They may overlap after release. I had positioned the new elephant around world x = -0.30 m, y = 0.06 m, perhaps at the same x coordinate as the first one. I could shift the new elephant sideways before releasing it. I estimate the white basket’s interior width at 0.17 m, and each elephant’s length at 0.08 m, so they may fit side by side. The current left link6 coordinates are x = -0.30 m, y = -0.04 m. The basket center is approximately x = -0.315 m, y = 0.06 m. I estimate the held object’s center at x = -0.30 m, y = 0.058 m and the first elephant’s center at x = -0.31 m, y = 0.06 m, making their positions nearly coincident. Possible left link6 x targets are -0.35 m on the left or -0.26 m on the right, keeping y = -0.04 m. Another estimate puts the basket’s interior width at 0.18 m, spanning x = -0.40 m to -0.22 m, so offsets of about ±0.04 m seem acceptable. The held elephant has yaw -45°; after the tilt, its long axis runs diagonally along x and y. Its width is about 0.06 m, so two would need about 0.12 m across the estimated 0.18 m basket width. I also considered a -0.06 m shift in x to -0.36 m, separating the new elephant from the first by about 0.06 m. With both currently near image x = 190 pixels, I estimate that this shift at z = 0.9 m would move the held elephant’s horizontal projection by -33 pixels to 157 pixels, within the white basket’s approximate span of 126–257 pixels. I will choose the smaller -0.05 m shift to left link6 target [-0.35, -0.04, 1.01] m. Moving horizontally at this release height needs care because the object’s estimated bottom is at z = 0.84 m, below the rim at z = 0.85 m. It is already inside the basket, and the first elephant’s top may be around z = 0.80 m, leaving an estimated 0.04 m of clearance beneath the held toy. On those estimates, the sideways motion appears safe. I’ll keep the left gripper closed during the shift and close the right gripper around the staged bar simultaneously for six steps, then inspect before releasing the elephant.

The chocolate bar appears held vertically between the right fingers, and the reported opening command is 0.189. The newly held elephant now seems to be to the left of the first elephant: in the high-camera view, the first is near x = 190 pixels and the held one near x = 165 pixels, giving about 25 pixels of separation. That looks adequate for release. I’ll release the elephant and test-lift the bar simultaneously over three control steps. I’ll open the left gripper and keep the right gripper closed while raising its link6 by 0.035 m to z = 0.958 m. Assuming the bar’s bottom starts at z = 0.75 m, the planned lift would bring it to z = 0.785 m.

The released elephant is inside the left basket. Two elephants are visible and appear stable, perhaps with one resting on its side. The last chocolate bar stayed fixed relative to the right wrist during the lift, so it is held. I’ll transport it to the right basket, then retract and reset the arms. The right link6 is currently at [-0.08, -0.349, 0.956] m, with yaw 0°, a top-down orientation, and the gripper closed. A basket approach target of [0.32, -0.035, 1.03] m with a 30° forward tilt and wxyz quaternion approximately [0.683, 0.183, 0.683, 0.183] is sqrt(0.4² + 0.314² + 0.074²) = 0.514 m away. That exceeds the 0.25 m target limit, so I need two or three intermediate moves. I initially consider a right intermediate target of [0.10, -0.20, 1.05] m with the 30° tilt, estimating its distance as 0.235 m. I could then use [0.28, -0.08, 1.05] m, estimated at 0.225 m farther, followed by [0.32, -0.035, 1.0] m for release. Another candidate, [0.12, -0.18, 1.05] m, is estimated at 0.274 m away and exceeds the limit. I also consider [0.08, -0.18, 1.05] m, initially estimating its distance as exactly 0.248 m, but sqrt(0.16² + 0.169² + 0.094²) = 0.251 m is slightly over the limit. I’ll choose [0.07, -0.19, 1.05] m instead: sqrt(0.15² + 0.159² + 0.094²) = 0.238 m. The orientation change is 30°. Using an estimated bar-bottom offset of 0.173 m, reduced to about 0.150 m vertically by the tilt, its bottom would be around z = 0.90 m at this intermediate pose, above the rim. The path toward the right appears clear over the table until the basket. The empty left gripper is open over the white basket at [-0.35, -0.04, 1.01] m. I briefly consider retracting it toward [-0.3, -0.25, 1.02] m with top-down yaw 45° or the initial orientation. Instead, I’ll use [-0.32, -0.20, 1.04] m and restore its top-down yaw -45° orientation, with wxyz quaternion approximately [0.653, 0.2706, 0.653, -0.2706]. This removes the current 30° tilt. The move takes it 0.16 m along negative Y away from the basket; I estimate the overall distance as 0.164 m and the open fingertip height as about z = 0.88 m, above the estimated rim at z = 0.85 m. I’ll execute both moves for 12 control steps. The right arm moves from the front center toward the right basket while the left stays on the left, avoiding crossing paths. At the chosen intermediate targets, their X coordinates are separated by 0.39 m. Afterward, I’ll continue the bar transfer and hold the left arm in clear space. I could begin moving the left toward its initial pose, but robot_reset is for after the manipulation goal is complete, so I’ll wait until the last placement is verified before resetting.

Both arms have only partly reached their targets. The measured right link6 position is [-0.003, -0.266, 1.007] m, and the left is at [-0.333, -0.131, 1.025] m. The chocolate bar remains fixed relative to the right wrist, so the grasp looks secure. I’ll continue toward the right intermediate transport target of [0.07, -0.19, 1.05] m and the left retraction target of [-0.32, -0.2, 1.04] m. Both motions appear safe. I’ll use 10 control steps.

The right arm has reached its intermediate target. The bar appears near high-camera pixel (344, 205), between the fronts of the blue and red baskets. Is its bottom above the rims? Using the estimated 0.15 m vertical offset below link6, I get a bottom height of 1.05 - 0.15 = 0.90 m, which should provide clearance. The right-basket approach target [0.32, -0.035, 1.04] m is sqrt(0.25² + 0.155² + 0.01²) = 0.294 m away, exceeding the 0.25 m command limit. I need another intermediate pose. I could use [0.24, -0.09, 1.05] m, estimated at 0.197 m away, or [0.20, -0.10, 1.05] m, estimated at 0.195 m away, before the final approach. Either way, the remaining transfer needs two actions. I’ll choose [0.22, -0.09, 1.05] m, with an estimated distance of 0.184 m, and use 10 control steps while holding the empty left arm in clear space. Afterward, I plan to move to [0.32, -0.035, 1.0] m for release. During this rightward move, the bar’s estimated bottom height of 0.90 m remains above the blue basket’s estimated rim height of 0.85 m, so the path appears clear.

The right link6 is currently at x = 0.195 m, y = -0.108 m. The bar appears above the red basket’s left edge near high-camera pixel (420, 165). I estimate its world center at x = 0.195 m and y = -0.108 + 0.086 = -0.022 m. The red basket’s estimated bounds are x = 0.2–0.44 m and y = 0–0.12 m, so the bar is just at its left edge and needs to move inward. I could first target right link6 position [0.30, -0.04, 1.03] m, an estimated distance of 0.139 m, then lower to z = 1.0 m for release. Alternatively, I can move directly to [0.32, -0.035, 1.0] m, which I estimate is 0.165 m away and within the motion limit, keeping the orientation unchanged. I’ll choose the direct target. It moves the bar inward while lowering link6 by 0.05 m. I estimate the bar’s bottom height will go from z = 0.90 m to z = 0.85 m, remaining above the rim until it is inside the opening. I’ll use 10 control steps, keep the right gripper closed, and hold the left arm steady.

The last chocolate bar is over the center of the red basket. I’m unsure whether the rabbit is to its right or left; the first bar is lying on the right. I’ll open the right gripper for three control steps to release the last bar, then inspect the placement. I’ll hold the left arm steady in clear space.

Is the last bar lying across the rabbit? In the wrist view, it seems to lie flat on top of the rabbit. In the high-camera view, the bar is horizontal near pixel (462, 174), above the rabbit near (445, 175). One end appears supported by the basket floor and the other by the rabbit. It is contained, and this looks acceptable for stable container placement. Both chocolate bars appear to be in the right basket. I should also check the count in the white basket. In observation 538, the three objects appear within image x coordinates 145–207: a vertical object near x = 153, a flat central object near x = 172, and a smaller object on the right near x = 193. The leftmost elephant may be standing on its side. That accounts for three wooden toys in the left basket, two peppers in the middle basket, and the rabbit plus two bars in the right basket. I believe the manipulation is complete. I need to return both arms to their initial joint configurations using robot_reset, after releasing everything and moving both arms into clear space. The left link6 is at [-0.32, -0.2, 1.04] m, with a top-down yaw of -45° and an open gripper. It is already clear. The right link6 is at [0.32, -0.035, 1.0] m, with a 30° forward tilt and an open gripper over the basket. Its fingers are still near the bar and rabbit, so I need to withdraw it before resetting. I should inspect after withdrawal to verify that the last bar remains supported. I could raise the right arm vertically to z = 1.1 m, but that height was previously unreachable at the forward basket position y = -0.035 m. Instead, I considered moving backward toward y = -0.15 m and up to z = 1.05 m, using a top-down yaw of 0°. A candidate target is [0.32, -0.18, 1.05] m, with an estimated position distance of 0.154 m and a 30° orientation change. This would move the open fingers upward and away from the basket. I will use the right target [0.32, -0.20, 1.04] m instead, mirroring the left arm's clear position. I estimate the position distance as 0.17 m and the orientation change as 30°. I’ll execute 10 steps while holding the left arm at [-0.32, -0.2, 1.04] m. The left fingertips are approximately at z = 0.882 m above the table. The left basket is behind them near y = 0.06 m, and the objects formerly near y = -0.2 m have been cleared, so that waiting pose looks safe. After inspecting the bar's stability and both arms' clearance, I can call robot_reset with perhaps 50 steps. The left arm's clear pose is about 0.192 m from its initial position [-0.3, -0.352, 0.922] m, with a possible orientation difference of 2.59 rad from the top-down yaw of -45° to the initial yaw of 90° with horizontal fingers. The right clear pose is about 0.193 m from its initial position [0.3, -0.352, 0.922] m, with a possible orientation difference of 120°. Reset interpolates the joints rather than using the EEF target bound, and I expect 50 steps to be enough. I’ll inspect afterward and call again if the arms have not returned and the episode remains active. native_success is still false and may become true only after the arms return. I must wait for feedback reporting native_success as true before reporting final success. For now, I’ll withdraw the right arm for 10 steps and hold the left arm steady.

The right arm has only partly withdrawn, with its measured link6 position at [0.32, -0.108, 1.015] m. It is still near the basket’s front edge; are the fingers high enough? In the high-camera view, the right gripper appears near pixel (510, 177), at the red basket’s edge, but it is withdrawing. The last bar remains inside the red basket, lying diagonally and stably supported by the rabbit and basket floor. I’ll continue toward the right link6 target [0.32, -0.2, 1.04] m for eight control steps, then reset the arms.

Both arms are in clear, open space at approximately y = -0.2 m and z = 1.04 m. All objects have been released, and both grippers report an opening command of 1. I’ll call robot_reset with 50 control steps. I should check whether the return could collide with the baskets. The arms will move from approximately y = -0.2 m, z = 1.04 m toward their initial positions at y = -0.352 m, z = 0.921 m, moving toward the front and downward, away from the baskets. The left gripper’s rotation from its top-down yaw of -45° to its initial orientation could swing the fingers, but the table area around x = ±0.3 m and y = -0.2 to -0.35 m is clear. The right chocolate bar and red pepper have been removed from that area, so the return appears safe.

The 50-step reset stopped before reaching home, with a maximum joint error of about 0.1345 rad; the return plan required 53 steps. I could allow another 10 or 20 steps. I’ll use 20 steps to finish the return. The objects appear contained, but I should check their visibility. The left wrist view seems to show three distinct toys in the white basket: standing legs on the left, a loop-shaped object in the center that might be the rabbit, and a yellow object on the right that might be a horse. The chocolate bars are harder to distinguish. In the right wrist view, only the rabbit is clearly visible; the bars may be hidden by the front rim and camera angle. The high view shows a brown wrapper near pixel (468, 183), but I am unsure where the second bar is. Were both wrappers brown Snickers bars, or did the first appear white and red, like a KitKat wrapper, after placement? In observation 218, the first bar appeared to lean inside the right basket with the rabbit. After the last release in observation 538, a bar appeared near pixel (461, 174), with the rabbit near (444, 175), and the first bar may have been hidden underneath. In observation 556, the high view shows one bar near (468, 184), possibly the silver-and-brown diagonal wrapper extending from (451, 183) to (477, 174). The white-and-red bar may be the first bar and the brown one the second, with one underneath the rabbit. They could overlap, which is acceptable for containment. Still, could the first bar have fallen out, or could I have mistaken the rabbit for it? I should inspect high-camera crops from observations 556 and 606 to check both bars. My working hypothesis is that native_success remains false because the arms have not reached home, and that the sorting conditions are already satisfied. If an object is missing, success might remain false after the return while the episode continues. I’ll inspect the feedback after continuing the reset for 20 steps.

I’ll move the open right gripper toward the right basket over 12 control steps, using the intermediate link6 target [0.30, -0.20, 1.03] m and the computed halfway orientation quaternion [0.77455596, 0.0923359, 0.34460227, 0.52228959] in wxyz order. I’ll hold the left arm at its current home pose with its gripper open.

The right arm’s approach is still partial. In the right wrist view, the rabbit is clearly visible near pixel (285, 215), with a silver chocolate bar to its right near (350, 200). I can only clearly distinguish one bar; perhaps the other brown bar is underneath the rabbit. I’ll revisit that uncertainty after checking the native outcome. I’ll continue toward the same intermediate position, [0.3, -0.2, 1.03] m, and halfway orientation before completing the final tilt toward the basket. Could I target the final orientation directly from the current pose? I estimate the remaining rotation to the halfway orientation at about 0.6 rad, while the rotation to the final orientation is about 1.2 rad, exceeding the 1 rad limit. I should therefore continue to the halfway orientation. I considered 15 control steps, but I’ll use 12, keeping the right gripper open and the left arm at home.

The right gripper is now near its intermediate orientation. The rabbit and one silver bar are clearly visible, but I cannot distinguish a second bar. Initially, the right object near high-camera pixel (513, 291) was one Snickers bar, and the left Snickers bar was the second. After the first placement, observation 218’s right wrist view showed a white-and-red bar on the right and the rabbit on the left. At observation 535, the last bar was centered in the wrist view, with the white-and-red bar on the right. In observation 637, only one silver bar is visible to the rabbit’s right. The bars may be stacked exactly together, with the silver one above the white-and-red one; that seems likely, but remains unverified. If one bar fell out, native_success could remain false even after I correct the rabbit’s placement. I’ll inspect the bars after removing the rabbit, when they should be easier to see. The next planned right-arm basket approach is link6 position [0.32, -0.035, 1.03] m with the final 30° forward tilt. The remaining rotation from the intermediate orientation may be just over the 1.0 rad command limit. My rough estimate is 57°, or 1.001 rad; using the total rotation of 104.47° gives 104.47 × 0.55 = 57.46°, or about 1.003 rad, if the current interpolation fraction is exactly 0.45. The measured orientation might make the actual remaining distance about 1.0 rad, but targeting the final orientation directly risks a validation rejection. I can instead use spherical interpolation from the home orientation to the final tilted orientation at t = 0.8. From t ≈ 0.45, that would require approximately 0.35 × 1.823 = 0.638 rad, then I could finish the rotation later. Another option is the midpoint between the current intermediate and final orientations, corresponding to an overall fraction of 0.725 and a change of approximately 0.275 × 1.823 = 0.501 rad, followed by another action to reach the final orientation. I could also try the final target and adjust if validation rejects it; that would spend no control steps, but would still require a correction. A yaw-0° top-down orientation is another possible alternative to the tilt, but I am unsure of its angular distance from the current pose. The full rotation from home to that top-down pose is 120°, whereas the current pose is near t = 0.45 along the different, approximately 104° tilted-orientation path. I’ll use t = 0.8 on the existing path and compute its quaternion now.

I’ll move the right gripper to the basket-approach link6 position [0.32, -0.035, 1.03] m, using the computed orientation at interpolation fraction t = 0.8. I estimate the target is 0.197 m and 0.64 rad from its current pose. I’ll use 12 control steps with the gripper open and hold the left arm at home. Afterward, I’ll complete the final tilt, lower the right gripper, and inspect the result.

Both chocolate bars are now visible in the right basket: the Snickers near the center and the white-and-red bar on the right. This confirms that the rabbit is the only remaining misplaced object. The measured right link6 position is [0.315, -0.122, 1.016] m, and its orientation is approximately at interpolation fraction t = 0.8. I’ll finish the forward tilt and move closer and lower toward [0.32, -0.035, 1.0] m above the rabbit. I estimate the move at about 0.087 m and the remaining rotation at about 0.36 rad. I’ll use 10 control steps with the right gripper open, then inspect the new observation.

The rabbit appears near wrist-image pixel (335, 220), with the chocolate bars clear to its right. The open fingers are visible at the lower left and right, but could the lower-right finger be underneath the bars or touching the white bar? In the high-camera view, the fingers appear near the red basket’s front-right area. I need to grasp the rabbit’s body without disturbing the bars. The current right link6 position is [0.32, -0.039, 0.999] m with a 30° tilt. I estimate the fingertip height at z = 0.863 m and the rabbit’s top at perhaps z = 0.805 m. Lowering link6 by 0.06 m to z = 0.939 m would put the tips around z = 0.803 m. If the body midpoint is around z = 0.78 m, a link6 height of 0.92 m would put the tips around z = 0.784 m. The basket floor is estimated at z = 0.76 m, so the fingers can descend inside the basket. The rabbit’s body center might be near world x = 0.30 m, y = 0.05 m. Is it slightly left of the gripper center in the wrist view? Another reading puts its image center near (330, 220), close horizontally. I could use its initial body-center estimate, but it may have rotated after placement. In the high-camera view, it appears near (443, 174); at an assumed height of z = 0.78 m, perhaps its world x coordinate is about 0.29 m. For pixel (444, 174) at that height, I tentatively estimate x = 0.292 m and y = 0.079 m. I should use the current calibration to investigate these estimates and consider matching a rabbit-body feature between the views. I’ll use Python to intersect the high-camera and wrist-camera rays with candidate height planes. For wrist pixel (340, 220) at z = 0.79 m, could the world x coordinate be around 0.32 m?

The desired wxyz quaternion is approximately [0.612, -0.354, 0.354, 0.612]. I think its local +X direction points forward along world +Y and downward. The halfway quaternion is approximately [0.702, -0.092, 0.559, 0.432], coincidentally matching the left gripper’s earlier forward-tilted yaw-45° posture. The rotation from the current orientation to this halfway pose is about 45°. I could shift the right link6 to x = 0.30 m and y = -0.02 m while keeping z = 0.999 m during the rotation, but I should stay above the contents and adjust the grasp center after inspecting the next view. I’ll therefore keep its current position at [0.32, -0.039, 0.999] m and rotate the open gripper halfway over eight control steps. Afterward, I might combine the final orientation with a position target of [0.30, -0.02, 0.97] m, or finish the rotation at the same position before adjusting. For now, I’ll execute only the halfway rotation.

The right gripper has rotated only about 20°, so it has not reached the halfway orientation target. I’ll continue toward the same halfway target for eight control steps, then perhaps proceed to the final orientation.

The right gripper is close to the halfway orientation target, whose wxyz quaternion is approximately [0.702, -0.092, 0.559, 0.432]. Its measured quaternion is [0.705, -0.063, 0.576, 0.409], leaving about 5° to that intermediate target. I can now target the final quaternion, approximately [0.612, -0.354, 0.354, 0.612], which I estimate is about 40° away. I’ll use eight control steps to rotate toward it, then inspect the grasp alignment.

The right gripper is about 10° short of its final orientation. I estimate the rabbit’s image center near pixel (300, 190), with the bars below and to the right. I could finish the rotation and lower to a link6 height of 0.94 m while correcting the X position, perhaps over six control steps. The current right link6 position is [0.319, -0.039, 0.999] m. The desired tilted orientation has yaw 90°, with local +X pointing forward along world +Y and downward. I could refine the rabbit’s center by inverting a wrist-camera ray using the camera orientation after the rotation. My approximate reading of the body center at pixel (300, 200) suggests a world position near [0.30, 0.07, 0.79] m, but this remains an estimate. For contact at the body midpoint, z = 0.78 m, the object’s Y coordinate should equal link6 Y plus the horizontal contact reach. If contact occurs at local X = 0.13 m, the offsets would be +0.065 m in Y and -0.1126 m in Z. That would require link6 Z = 0.8926 m and link6 Y approximately 0.005 m, using the estimated object Y coordinate minus 0.065 m. If I instead use the full fingertip extent of 0.1576 m, link6 Z would be 0.78 + 0.1365 = 0.9165 m, and link6 Y would be approximately -0.009 m after subtracting 0.0788 m from the object’s Y coordinate. A link6 target of [0.30, -0.01, 0.93] m would put the fingertips at approximately z = 0.7935 m and y = 0.0688 m, which looks suitable for the top or middle of the body. Link6 X should match the estimated object X coordinate of 0.30 m. For the next action, I’ll use the slightly higher target [0.30, -0.01, 0.94] m. Its estimated fingertip height is 0.804 m, close to the estimated body-top height of 0.80 m. I may eventually need to lower to 0.92 m. I’ll finish the desired orientation and move to [0.30, -0.01, 0.94] m over six control steps with the right gripper open, then inspect. I estimate the position change as 0.064 m and the remaining rotation as 0.2 rad, which seem acceptable.

The rabbit’s body appears large and centered near wrist-image pixel (315, 280), with the bars below it and perhaps partly underneath it. Could the rabbit actually be lying on the central Snickers rather than beside it? In the high-camera view, the rabbit appears near (440, 172) and the bar near (465, 183). Their estimated world X-Y positions could be [0.30, 0.07] m for the rabbit and [0.34, 0.04] m for the bar, so they may be adjacent but appear to overlap from this viewpoint. The open fingers are on either side of the rabbit’s torso. Closing along world X should avoid the bars, though I am still checking their direction relative to the gripper. After the rotation to yaw 90°, the camera’s horizontal direction may correspond to world X, so the bars appearing below the rabbit would place them toward world -Y, at the front. Could the right finger be near the white bar? The bars appear below the body while the fingers are to its left and right, so the approach looks safe. The current right link6 height is z = 0.94 m, with an estimated fingertip height of z = 0.8035 m. I estimate the rabbit’s ear tops at z = 0.85 m and its body top at z = 0.80 m, so the pads may already overlap the upper body. I’ll lower link6 by 0.02 m to z = 0.92 m, putting the tips at approximately z = 0.7835 m for mid-body contact. I’ll use three control steps with the gripper open, then close afterward. The wide-open fingers should avoid pushing the rabbit into a bar.

The right gripper’s opening command is 0.503, larger than the approximately 0.285 reported during the original rabbit grasp. Could this be because the rabbit is oriented differently and I am grasping across a larger part of its body? The fingers may be contacting the head and body rather than forming an antipodal grasp. The rabbit still appears between them, with the fingers near its head and rump. Should I allow more closure steps? Six steps usually bring the command to a value such as 0.503, where I suspect the object prevents further closure. I’ll proceed with a 0.035 m test lift, targeting right link6 height z = 0.955 m over three control steps. If the rabbit moves with the gripper, that will confirm the grasp.

Has the rabbit lifted? In the high-camera view, it has moved from approximately pixel (440, 174) to (450, 164), upward and rightward with the gripper. It remains in the same position relative to the fingers in the wrist view, so I conclude it is held. It is above a chocolate bar, while the bar remains in the basket. I’ll stage the rabbit on the front-center table so the left arm can pick it up. The right link6 is currently at [0.3, -0.011, 0.953] m with a tilted yaw-90° orientation. I initially consider a top-down staging pose of [0, -0.32, 0.95] m. If I retain the current tilt, what is the rabbit’s bottom offset relative to link6? At the initial grasp, link6 was at z = 0.92 m and the rabbit’s bottom may have been at z = 0.76 m, suggesting an offset of about 0.16 m, perhaps along local X. With that tilted orientation and link6 at z = 0.94 m, I estimate the bottom would be at z = 0.78 m, allowing a 0.03 m drop on release. The tilt points local X forward along world +Y, so I estimate the object center’s Y coordinate as link6 Y plus 0.079 m. To stage the object at y = -0.32 m while retaining the tilt, link6 would need to be near y = -0.40 m. That is farther forward, but likely reachable and near the initial position. Alternatively, I can restore a top-down yaw-90° orientation before transport, making alignment easier because link6’s X-Y coordinates would match the object’s. I’ll choose the top-down orientation with wxyz quaternion [0.5, -0.5, 0.5, 0.5], a 30° change from the current tilted pose. I estimate the direct distance to staging pose [0, -0.32, 0.96] m as 0.435 m, exceeding the 0.25 m target limit. I therefore need an intermediate pose at [0.15, -0.18, 1.02] m. Is that distance about 0.252 m? Using sqrt(0.15² + 0.169² + 0.067²), I get approximately 0.236 m, within the limit. At this top-down intermediate pose, I estimate the rabbit’s bottom as link6 Z minus 0.17 m, or z = 0.85 m, above the table. The later staging target [0, -0.32, 0.94] m is approximately 0.214 m farther away and would put its bottom near z = 0.77 m for release. The right arm’s path moves away from the basket front and appears safe. The left arm remains at home, [-0.3, -0.352, 0.922] m. The staging point at x = 0 m, y = -0.32 m is about 0.3 m from the left arm, giving enough gripper separation. After the right arm releases the rabbit and retracts to the right, the left arm can approach. For now, I’ll use 12 control steps to move the closed right gripper to [0.15, -0.18, 1.02] m with the top-down yaw-90° orientation, while holding the open left gripper at home. I then plan a 10-step move to [0, -0.32, 0.94] m and release. A possible right-arm retraction target is [0.15, -0.25, 1.03] m. I’m considering whether the left arm could approach during that withdrawal, but I need to avoid crossing paths. Retracting the right arm first while the left remains home, then allowing the left to pick up the rabbit, is another option.

The right gripper’s opening command decreased from 0.489 to 0.326 during transport and reorientation. The rabbit may have rotated or slipped under gravity, but it still appears held between the fingers, perhaps now around its head and body. In the wrist view, its head and ears appear large, with part of the body visible and fingers on either side. I need to ensure it remains lifted. In the high-camera view, the rabbit appears near pixel (459, 187), possibly still over the red basket’s front wall. The measured right link6 position is [0.25, -0.065, 0.997] m, and I tentatively estimate the rabbit’s center at [0.25, -0.06, 0.82] m. The transfer is incomplete and the object is hanging low. Although I targeted link6 z = 1.02 m, it reached only 0.997 m and has not finished turning top-down. The rabbit’s bottom may be around z = 0.78 m, possibly still on the basket floor or rim. I considered continuing toward [0.15, -0.18, 1.02] m with the top-down orientation. Decreasing Y would move it toward the front, away from the basket, but a bottom height around z = 0.82 m could collide with the estimated rim at z = 0.85 m. Raising vertically first should avoid knocking the rabbit or bars. One alternative is to raise link6 to z = 1.08 m with either the current or top-down orientation before moving horizontally. At the initial grasp, link6 was at z = 0.92 m and the rabbit’s bottom was estimated at z = 0.76 m, giving a 0.16 m offset. With link6 now at z = 0.997 m, that estimate puts the bottom at z = 0.837 m, near the rim. Turning fully top-down may leave it this low, so I’ll instead raise the right link6 to [0.25, -0.065, 1.07] m while completing the top-down yaw-90° orientation. I estimate the rabbit’s bottom will then be around z = 0.91 m, safely clear of the rim. About 10° of rotation remains, and the commanded rise is 0.073 m. I’ll use eight control steps, keep the right gripper closed, and hold the left arm at home with its gripper open. Then I can continue toward the intermediate handoff pose.

The right link6 is now at z = 1.032 m, and I estimate the rabbit’s bottom at z = 0.872 m, above the basket rim. The opening command has changed to 0.388 as the rabbit rotates, but it remains fixed relative to the wrist and appears held. I’ll continue to the intermediate link6 target [0.15, -0.18, 1.05] m with the gripper pointing down, then proceed to staging. The target is approximately 0.151 m away. I’ll use 10 control steps, keeping the right gripper closed and the left arm at home.

In the high-camera view, the rabbit appears near pixel (415, 236). It has rotated significantly and may be hanging head-down with its ears up. The wrist view shows a large head with the torso to the right. The gripper appears to hold it stably around the head and body. Resting on its side after release onto the staging table would be acceptable. I’ll target the right link6 at [0, -0.32, 0.94] m, retaining the top-down yaw-90° orientation. I estimate the target distance as 0.217 m, with a descent of 0.11 m, and will use 12 control steps. At the current link6 height of z = 1.05 m, the rabbit’s bottom appears near high-camera image y = 240 pixels and may be at world z = 0.89 m. At the target link6 height of 0.94 m, I estimate its bottom will be at z = 0.78 m, suitable for staging. The path is over open table with no apparent obstacles. The left arm remains at home with x-y coordinates [-0.3, -0.352] m; the staging target at x = 0 m gives 0.3 m of separation in X, which appears safe. I’ll keep the right gripper closed during the move and hold the left arm at home.

The staging move is only partly complete: the right link6 is at [0.034, -0.29, 0.965] m rather than the target [0, -0.32, 0.94] m. In the high-camera view, only a small yellow part of the rabbit is visible below the gripper near pixel (342, 331); it may be hanging vertically with its head down. I’ll continue toward the same staging target for five control steps, keeping the rabbit grasped, then release it afterward. The left gripper remains at home at x = -0.3 m, y = -0.352 m, separated from the staging point at x = 0 m, so this move appears safe.

The rabbit may be just above the table with its ears up and the bottom of its head at table level; it appears stable. I’ll open the right gripper for three control steps to release it. Then I’ll retract the right arm upward and away before the left arm approaches, keeping the release and withdrawal as separate actions.

The rabbit is on the table between the open fingers and appears stable, perhaps lying on its side. I’m considering retracting the right arm to link6 position [0.18, -0.25, 1.04] m with a top-down yaw of 0°. Changing from its current top-down yaw of 90° would require a 90° rotation, which would need to be split into smaller actions. I could instead keep the current yaw-90° orientation and move rightward and upward to that position; I estimate the distance as 0.213 m, and the path appears safe. However, the right link6 is currently at z = 0.94 m, with the fingertips around z = 0.782 m and the rabbit’s head top around z = 0.83 m. The fingers are still alongside the rabbit, so moving sideways and upward together could push it. I’ll first raise the open right gripper vertically to link6 z = 1.04 m, keeping its X-Y position and top-down yaw-90° orientation unchanged, over eight control steps. I’ll hold the left arm at home, then move the right arm away once it is clear.

The rabbit is stationary on the clear table. I’ll move the right arm away to link6 position [0.18, -0.25, 1.04] m, keeping its top-down yaw of 90° unchanged. The left arm can begin approaching from home, but sending it directly to a hover at [0, -0.32, 1.03] m while the right arm leaves could make their paths converge, as happened during an earlier crossing. A partial left approach would be safer. I consider [-0.15, -0.32, 1.0] m; at an intermediate point, the right arm could be at x = 0.09 m and the left at x = -0.15 m, giving 0.24 m of separation. I also consider a left intermediate pose at [-0.16, -0.32, 1.02] m with a top-down yaw of 45°, but the orientation needs to be split. From the initial left orientation to top-down yaw 45°, the rotation is about 98°, or 1.718 rad, exceeding the 1 rad target limit. Top-down yaw 90°, with wxyz quaternion [0.5, -0.5, 0.5, 0.5], would require 90°, or 1.571 rad, and also needs two actions. Top-down yaw 0°, with quaternion [0.707, 0, 0.707, 0], would require 120°, or 2.094 rad, and needs three actions. A side grasp using the initial horizontal orientation might be possible, but a top-down approach seems easier. I’ll use the yaw-45° approach from before, with an intermediate interpolation fraction of 0.45 and approximate wxyz quaternion [0.7502, -0.1347, 0.3253, 0.5597]. This covers about 44° of the total 98° rotation and stays below the 1 rad limit. I consider moving the left arm to [-0.20, -0.32, 1.0] m with this intermediate orientation while the right arm withdraws, then completing the yaw-45° orientation over the rabbit. In the right wrist view from observation 767, the rabbit’s body and head appear vertical in the image, though it may actually be lying on its side on the table. In the high view, its head and body appear near pixel (315, 345). The left wrist camera should provide a side view during the approach. A diagonal closing direction at yaw 45° seems suitable for the rabbit, whose world center I tentatively estimate at x = 0 m, y = -0.32 m. For this action, I’ll choose the left intermediate link6 position [-0.18, -0.32, 1.0] m with the intermediate quaternion, and the right withdrawal position [0.18, -0.25, 1.04] m with yaw 90° unchanged. I estimate the left target distance as 0.158 m and its rotation as 44°, and the right target distance as 0.197 m. The left arm moves from x = -0.3 m toward -0.18 m while the right moves from approximately x = 0 m toward 0.18 m, so I expect adequate separation along these paths. I’ll use 12 control steps with both grippers open. Afterward, I plan to move the left arm to [0, -0.32, 1.0] m with the final yaw-45° orientation while holding the right arm clear.

The left arm has only partly reached its target position and orientation, while the right arm is nearly at its withdrawal target. The rabbit is clear on the table near high-camera pixel (315, 324), rather than my earlier estimate of (315, 345). Its world position may be around x = -0.01 m, y = -0.32 m. I’ll continue the left arm’s intermediate approach to link6 position [-0.18, -0.32, 1.0] m with the intermediate quaternion [0.75021074, -0.13472362, 0.32525158, 0.55968277] in wxyz order for 10 control steps. I’ll hold the open right gripper at its measured position [0.156, -0.261, 1.039] m with its top-down yaw-90° orientation. After this intermediate approach, I plan to complete the left arm’s approach and orientation over the rabbit.

The left arm has reached its intermediate pose, and the rabbit appears near pixel (315, 324) in the high-camera view. I’ll move the open left gripper to the rabbit hover target at [0, -0.32, 1.0] m and complete the top-down orientation with a yaw of 45°. The target is 0.181 m away, with about 54° of rotation remaining. I’ll use 12 control steps while holding the right arm steady.

The rabbit appears large on the right side of the left wrist view, and the left gripper has not yet reached its final orientation. Its current link6 x coordinate is -0.075 m, compared with the target of 0 m, so the approach is still partial. I’ll continue toward the same hover target for 10 control steps while holding the right arm steady.

The rabbit appears near pixel (230, 120) in the left wrist view, rather than centered on the gripper axis, which I estimate at image x = 320 pixels and v = 150 pixels for z = 0.78 m. Its body center may be near (260, 140), giving a horizontal image offset of about -60 pixels. I should correct the gripper’s X-Y alignment before descending. In the high-camera view, the rabbit is near pixel (314, 320), while the left gripper appears centered near (340, 320). The gripper’s world x coordinate is 0 m, but the rabbit’s may be about -0.025 m. I staged it with the right link6 at x = 0 m; could its offset while hanging in that grasp have left it at x ≈ -0.02 m after release? I’ll refine its position using the current wrist-camera calibration and an estimated body height of z = 0.79 m. The torso’s rounded part on the right appears centered around pixel (267, 142). I’ll intersect that camera ray with an assumed height plane at z = 0.785 m or 0.79 m to estimate the grasp center.

The wrist-based estimate places the torso center near world x = -0.002 m, y = -0.297 m, giving a +0.023 m Y offset from link6. Its X coordinate is nearly unchanged, rather than about -0.03 m as I had suspected; the camera’s tilt and depth account for the apparent horizontal image offset. Inverting the high-camera body pixel near (315, 320) at z = 0.79 m might give approximately x = -0.014 m, y = -0.308 m, which is close. A possible table-grasp target is left link6 position [0, -0.297, 0.935] m. Initially, I estimated the rabbit’s top at z = 0.795 m, its midpoint at z = 0.772 m, and a suitable link6 height at z = 0.93 m. It is now lying on its side, with a possible body height of z = 0.79 m and its feet on the table. I estimate its torso center at z = 0.78 m and top at z = 0.81 m. Setting link6 to z = 0.935 m would put the fingertips near z = 0.777 m, which seems suitable. From the current z = 1.0 m, that would be a 0.065 m descent. I should adjust the orientation before descending. Is the rabbit’s long axis vertical in the wrist view? On reconsideration, its head is near pixel (180, 120) and its body near (270, 140), making the head-to-body line roughly horizontal. That suggests a world long-axis direction of (0.707, -0.707). At the current yaw of 45°, local Y closes along [-0.707, 0.707], parallel to that axis in the opposite direction. This may not be a stable grasp orientation. The torso is rounded, so a grasp centered on it could still contact its sides even if the overall long axis is parallel to closure. However, with an open gap wide enough to encompass the head and torso, approximately 0.09 m, the pads might contact the nose and tail instead. For the right arm’s corrective grasp, I used closure along world X. Here I could rotate to yaw -45° for a perpendicular grasp, requiring a 90° turn, or choose yaw 0°, closing along world Y at 45° to the long axis. There are 289 control steps remaining, enough for either option, but the 45° turn to yaw 0° is simpler and seems adequate for the rounded torso. Yaw 0° also worked for the right-arm bar grasp. I’ll keep the left gripper at a safe hover, rotate from yaw 45° to yaw 0° using wxyz quaternion [0.707, 0, 0.707, 0], and correct its position to [0, -0.297, 1.0] m. I expect the rabbit to appear diagonal in the next wrist view and can then descend. I’ll use eight control steps with the left gripper open and hold the right arm steady.

The left gripper’s rotation toward yaw 0° is still partial, at roughly 25°. I could continue the rotation and lower link6 to z = 0.95 m over perhaps six control steps. The rabbit’s torso appears centered near pixel (320, 195) in the left wrist view, which looks suitable. The final orientation will rotate the gripper farther while the torso center remains in place. I’ll instead target left link6 position [0, -0.297, 0.94] m with the yaw-0° orientation and the gripper open for eight control steps, while holding the right arm steady. Then I plan to close the left gripper.

The left gripper’s measured wxyz quaternion, [0.735, -0.042, 0.674, 0.064], has not reached the yaw-0° target. Could it have moved beyond the intended orientation? A joint limit or the orientation path might explain this; it is not yet pointing straight down, and the rabbit’s wrist-camera view is rotated. The right arm’s position and quaternion also drifted slightly despite the hold command. Could the arms have contacted each other again? In the high-camera view, the left and right grippers appear near horizontal pixel coordinates 330 and 400. I initially estimate their separation at about 0.17 m. Their measured X-Y coordinates are [0, -0.297] m for the left and [0.157, -0.26] m for the right, giving an estimated separation of 0.162 m. Clearance is limited, and contact might explain the drift. I’ll move the empty right arm farther away to link6 position [0.25, -0.25, 1.04] m, a small move of about 0.093 m, using its top-down yaw-90° orientation. At the same time, I’ll continue the open left gripper toward [0, -0.297, 0.94] m and the yaw-0° downward orientation. Contact with the right arm may be preventing the left orientation from reaching its target, so increasing clearance could help. I’ll use eight control steps for this combined action, provided the target precheck passes.

The left gripper has reached yaw 0° and link6 height z = 0.94 m. The rabbit appears large in the wrist view, centered near pixel (280, 290), with its head on the left and body on the right. Its torso center is near pixel (320, 300), between the open fingers, so the alignment looks suitable. The left link6 has world x-y coordinates [0, -0.297] m, and the torso may be at approximately those same coordinates. At link6 height 0.94 m, I estimate the fingertip height as 0.7824 m, close to the estimated body midpoint at z = 0.78 m. I’ll close the left gripper for six control steps while holding the right arm at [0.239, -0.252, 1.039] m with its top-down yaw-90° orientation and gripper open.

The rabbit appears held, and the left gripper’s opening command is 0.246. I’ll first make a 0.035 m test lift to link6 z = 0.975 m over three control steps, keeping the orientation fixed and holding the right arm steady. I need to confirm the rabbit moves with the gripper before transporting it. After the lift check, I plan to carry it to the left basket. The left arm is currently at x = 0 m, and I expect it can reach the basket near x = -0.3 m using a 30° forward tilt from its yaw-0° top-down orientation. The desired tilted quaternion is approximately [0.683, 0.183, 0.683, 0.183] in wxyz order, the same orientation used for the right-basket placement. This requires a 30° orientation change. The proposed left-basket link6 target is [-0.30, -0.04, 1.01] m, which was reachable with another orientation. I estimate the direct distance as 0.42 m, so I’ll need an intermediate target at [-0.15, -0.16, 1.06] m, about 0.218 m away, before the final approach. I estimate the rabbit’s initial bottom height as 0.94 - 0.19 = 0.75 m, giving a 0.19 m offset below link6. With the tilt, the estimated vertical bottom offset becomes 0.165 m. At link6 z = 1.06 m, its bottom would be at z = 0.895 m, safely above the rim; at the final link6 height of 1.01 m, its bottom would be at z = 0.845 m, inside the basket for release. The empty right arm is well clear. First, I’ll perform the test lift.

The rabbit remains fixed relative to the left wrist after the lift, confirming the grasp. I’ll transport it toward the left basket through the intermediate link6 position [-0.15, -0.16, 1.06] m, using a 30° forward tilt at yaw 0° with the approximate wxyz quaternion [0.683, 0.183, 0.683, 0.183]. I’ll use 12 control steps, keep the left gripper closed, and hold the right arm steady.

The rabbit is hanging securely from the left gripper, and the reported opening command is stable at 0.231. The measured left link6 position is [-0.094, -0.212, 1.029] m, so the move to the intermediate pose is only partly complete. I considered moving directly to the final approach position [-0.30, -0.04, 1.06] m, but I estimate that distance as 0.268 m, exceeding the 0.25 m target limit. I’ll instead continue toward the intermediate target [-0.15, -0.16, 1.06] m for eight control steps, then proceed to the final approach.

The left arm has reached the intermediate link6 pose [-0.15, -0.16, 1.06] m. The rabbit is partly hidden by the gripper in the high-camera view, above the white basket’s front-right area. I can now approach the final placement position. My initial target is [-0.30, -0.04, 1.01] m, an estimated distance of 0.198 m, with the orientation unchanged. I estimate the rabbit’s bottom at z = 0.895 m currently, above the rim, and at z = 0.845 m at that target, inside the basket. The path into the basket while lowering appears safe. However, placing it at x = -0.30 m could overlap the two elephants. In observation 864, the basket contents appear to occupy roughly image x = 150–190 pixels, while the area at x = 190–230 pixels may be empty. I could use the right side at world x = -0.26 m rather than the left side. Another candidate link6 target is [-0.27, -0.04, 1.01] m, which would put the estimated object center at x = -0.27 m, y = 0.055 m, to the right of elephants that may be near x = -0.34 m and -0.30 m. The earlier placement positions were x = -0.35 m for the second elephant and x = -0.30 m for the first. A rabbit position at x = -0.24 m might fit near the right edge. I estimate the basket’s right interior boundary at x = -0.22 m and the rabbit’s width at 0.05 m, so a center at x = -0.25 m seems safe. I’ll choose link6 target [-0.25, -0.04, 1.01] m, with an estimated rabbit center at x = -0.25 m, y = 0.055 m. Where would it project horizontally in the high-camera image at an object height of z = 0.84 m? It should be in the white basket’s right area. This target is likely reachable, and I estimate its distance from the current pose at about 0.16 m. I should also consider the rabbit’s long axis. It hangs with its head to the left and body to the right in the wrist view. If that meant its length ran along world X, then with a basket width of 0.18 m and rabbit length of 0.09 m, a center at x = -0.25 m would give head and tail extents of ±0.045 m, spanning x = -0.295 m to -0.205 m. That could exceed the estimated right boundary at -0.22 m by 0.015 m. But with the current tilted yaw-0° orientation, the camera’s horizontal rotation-matrix row is [0, -1, 0], so image horizontal corresponds to world -Y. The rabbit’s length therefore appears to run along world Y rather than X. With an estimated basket depth of 0.12 m, its center at y = 0.055 m and length extents of ±0.045 m would span y = 0.01–0.10 m, inside the basket. Its width along X is then only the torso’s estimated 0.04 m, which fits at x = -0.25 m. The rabbit at x = -0.25 m would be 0.05 m from the elephant at x = -0.30 m. There may be slight overlap, but estimated widths of 0.04 m each seem acceptable. I could choose x = -0.24 m for more separation, but I’ll retain [-0.25, -0.04, 1.01] m. I’ll use 10 control steps to move and lower the held rabbit, then release it and inspect its placement.

The rabbit is over the left basket, with the elephants to its right in the wrist view, and there seems to be enough space. I’ll open the left gripper for three control steps to release it, then check native_success, which may remain false until the arms are reset.

The rabbit is resting on its side in the left basket, partly on an elephant but stable. All three wooden toys are now in the left basket. I expect native_success to remain false until the arms are reset. The left link6 is currently at [-0.249, -0.042, 1.01] m with the gripper open over the white basket. The right link6 is at [0.239, -0.252, 1.039] m with its gripper open and already in clear space, so I can hold it there. I considered keeping the left gripper tilted, but I’ll withdraw it to [-0.30, -0.20, 1.04] m with a top-down yaw of 0° and wxyz quaternion [0.707, 0, 0.707, 0]. I estimate this move away from the basket at 0.165 m with a 30° orientation change. I’ll use 10 control steps. Once the left arm is clear, I plan to call robot_reset with 50 steps and allow another segment if needed, as before. The remaining budget of 223 control steps is ample for the withdrawal and return.

The left gripper is still near the basket’s front edge because its withdrawal is only partly complete. I’ll continue toward the same clear hover target for eight control steps while holding the right arm steady. Once the left arm is clear, I’ll reset both arms.

Both arms are clear, with the left link6 at [-0.299, -0.199, 1.04] m and the right link6 at [0.239, -0.252, 1.039] m. I estimate their distances from their initial positions as 0.204 m for the left and 0.165 m for the right. Returning from the left gripper’s top-down yaw of 0° to its initial orientation requires about 120° of rotation, while the right gripper’s top-down yaw of 90° requires about 90°. A 50-step reset may be enough, so I’ll call robot_reset with 50 control steps.

The final feedback reports native_success: true and says the episode has ended successfully, so I should give a concise outcome report without using any more tools. The reset terminated on native success while reached_home was false, so I should not claim that the arms reached their exact initial configurations. I considered describing the arm-return requirement as accepted by the episode, but that wording sounds awkward. Saying the episode ended during the required return could also sound incomplete unless I clearly state that success was confirmed. I’ll report that the three wooden toys are in the left basket, both peppers are in the middle basket, and both chocolate bars are in the right basket, with native_success: true confirmed during the final arm return.