按语言分拣物体任务成功

I need to control the robot to sort the objects. I should first read the relevant robot-manipulation skill and work without subagents. I have 1100 control steps available and should use both arms in parallel while moving carefully. My initial interpretation is a green pepper on the left, perhaps at approximately x = -0.14, a red pepper at the left front, another green pepper in the middle, a red race car in the middle, a yellow car on the right, and a wooden toy on the right that may be a rocking horse. Cars belong in the left white basket, peppers in the middle blue basket, and wooden toys in the right red basket. I initially wondered whether there were only two peppers, but I count three in the initial image: green at approximately (235, 237), red at (234, 274), and green at (338, 277). I also count two cars, red at (399, 290) and yellow at (447, 241), and one wooden toy at (502, 222), for six objects in total. I should use the camera calibration to estimate object coordinates reliably. I will read the skill and observation JSON, and may inspect image crops as well. I can use the execution tool to read the files.

I’ll read the initial observation JSON for its camera calibration and measured robot state, so I can ground the object-position estimates before choosing grasp targets.

I need to understand the initial pose. The quaternion [0.707, 0, 0, 0.707] represents a 90-degree rotation about Z, so link6’s local +X aligns with environment +Y. The fingers therefore extend horizontally along +Y rather than downward. My interpretation of the initial wrist views is consistent with this: the baskets are ahead and the fingers point horizontally along +Y. For a top-down grasp, I will likely need an orientation that maps local +X to environment −Z, with local Y perhaps aligned with environment X or −X. I should derive that orientation. I also need to estimate object coordinates using the high camera and an assumed table height. Projection geometry can map image pixels to environment coordinates at a known Z, but the table plane is still unknown. Could the table height be about 0.75 m? The initial EEF is at Z = 0.922 m, and the gripper appears roughly at object height in the image. The basket rims might be around Z = 0.83 m, and the objects’ table-contact points might be around Z = 0.77 m. These are tentative estimates. I can project the initial EEF position, approximately (−0.3, −0.352, 0.922) m, into the high-camera image and compare it with the visible gripper geometry. The fingers extend to local X = 0.1576 m, corresponding to environment Y = −0.1944 m at Z = 0.922 m in this orientation; they may appear around image y = 256. Perhaps these known positions can help constrain the table height. I will calculate the camera origins from the extrinsics using −Rᵀt. The high-camera rotation has rows [1, 0, 0], [0, −0.866, −0.5], and [0, 0.5, −0.866]. Its environment-frame origin has X = 0, but I still need to calculate the remaining components. I will also calculate the EEF projections and compare pixel-to-environment coordinates at several candidate heights.

The tabletop is likely at Z = 0.75 m. Could the baskets be centered at environment Y = 0.15 m? Their front edges appear around image y = 208. I should reconstruct the table plane more accurately using the high camera, the known EEF pose, and the visible gripper geometry. Perhaps this is a standard RoboDojo setup with a table height of 0.75 m. The initial EEF height of 0.922 m would put it about 0.17 m above that table. The baskets might measure 0.25 by 0.18 m, and their positions might be at X = ±0.3 m, Y = 0.15 m, Z = 0.75 m. These remain estimates. I need to grasp the objects at approximately Z = 0.78–0.82 m. For a top-down grasp, should the link6 height be the object’s grasp height plus the 0.1576 m finger length? With local +X pointing downward, the fingers extend 0.1576 m forward, so I would place link6 about 0.15 m above the grasp height. Assuming a tabletop at 0.75 m and an object center at 0.78 m, that gives a link6 height of approximately 0.93 m. The initial link6 pose, at Z = 0.922 m and Y = −0.352 m, therefore already seems to have an appropriate height for a top-down grasp. Would a 90-degree rotation about a local axis give the needed orientation? I will derive a quaternion with local X pointing along environment −Z, local Y along environment X or −X, and local Z chosen accordingly. I may want the fingers to close along environment X, so local Y would map to environment X and close across the object’s width. Taking the columns of R as the local axes expressed in the environment frame, local X = [0, 0, −1], local Y = [1, 0, 0], and local Z = X × Y = [0, −1, 0]. This gives R = [[0, 1, 0], [0, 0, −1], [−1, 0, 0]]. An alternative uses local Y = [−1, 0, 0] and local Z = [0, 1, 0]. I should choose an orientation that is reachable and provides a useful camera view. The initial quaternion represents a 90-degree rotation about Z. Could the top-down quaternion be [0.5, 0.5, 0.5, 0.5]? Its rotation matrix is [[0, 0, 1], [1, 0, 0], [0, 1, 0]], which maps local X to environment +Y rather than downward. What about [0.5, −0.5, 0.5, 0.5]? I will use SciPy to calculate the quaternions for the two proposed axis mappings and their orientation distances from the initial pose.

I mixed up the quaternion component order. The SciPy from_quat input [0.5, -0.5, 0.5, 0.5] is in xyzw order, so it yields [0.5, 0.5, -0.5, 0.5] in wxyz order, rather than the intended [0.5, -0.5, 0.5, 0.5]. To use that intended wxyz quaternion, I should pass [-0.5, 0.5, 0.5, 0.5] in xyzw order. I’ll recalculate.

I could start with the red pepper on the left, at approximately (−0.17, −0.18) m, and the yellow car on the right, at approximately (0.27, −0.11) m, grasping them concurrently. Moving toward them while rotating halfway could bring the partially downward-pointing fingers too close to the objects and risk a collision. It would be better to raise link6 to Z = 1.02 m and perhaps move only in X, using intermediate positions [−0.2, −0.25, 1.02] m for the left arm and [0.28, −0.25, 1.02] m for the right arm, keeping both grippers behind the objects. I estimate the left target distance as √(0.1² + 0.102² + 0.098²) = 0.174 m and the right distance as 0.132 m. Once the grippers have reached the full top-down orientation, I can move above the objects. For the grasp approach, I initially considered hovering with link6 at about Z = 0.96 m, with the fingers reaching down to 0.80 m, then lowering link6 to about 0.90 m for grasping, with the fingers reaching 0.74 m. However, contact occurs along the fingers rather than only at their tips. A link6 height of 0.94 m would put the finger extent at 0.782 m, allowing closure around an object at about Z = 0.78 m. I should inspect the gripper geometry in the wrist view after rotating downward to refine these estimates. My revised approach is link6 at Z = 0.97 m, with fingertips at 0.812 m above an object estimated at 0.79 m, followed by a grasp height of 0.935 m, with fingertips at 0.777 m and pads around the object’s estimated middle at 0.78 m. For now, I will begin with the intermediate rotation at the raised positions.

Both arms moved only a little after 8 steps, which I attribute to the 0.02 m per-step position limit and coordinated joint scaling. The left arm moved approximately [0.016, 0.018, 0.021] m. Its orientation changed by about 0.22 rad from the initial pose, compared with the target change of 0.785 rad. Does that amount to roughly 0.028 rad per step over the 8 steps? The total rotation from the initial pose may be about 0.222 rad. Reaching the target may require many steps—perhaps around 50. Although the maximum position increment is 0.02 m per step, joint-limit scaling can reduce it. I could use 8 steps per call; the episode’s 1100-step budget seems ample. Can I keep the same intermediate target within the 1 rad orientation limit? The remaining orientation distance is about 0.56 rad, and I estimate the position distance as 0.164 m, so the target is valid. I’ll continue toward it for 10 steps.

I notice a possible beige, wooden-looking object under the right gripper near pixel (480, 289) in the high-camera view. There may have been a partly occluded beige piece near (472, 282) in the initial view. The current right-wrist view also shows a yellowish object cut off near (350, 460). Could this be another wooden toy, or part of the gripper? The beige shape near (480, 291) looks somewhat like a small wooden toy. I initially saw only the yellow car and rocking horse in the right-wrist view, but the initial high-camera view may show a partly occluded tan object between the car and arm near (473, 286). I need to count carefully. Perhaps this task has two objects of each type and six objects total, but I may now be seeing seven. The beige item could instead be a right-gripper finger, although the initial fingers looked black and there appeared to be a tan shape behind them near (472, 283). The rounded beige shape at the bottom of the wrist view in observation 20 could be a table object previously hidden by the arm. I should keep track of this possibility. There may be two wooden toys: the rocking horse and another beige object. Does the wooden_toy category include all the beige shapes? Could the yellow car be wooden? I could inspect crops of the initial and current high-camera images using view_image or ImageMagick, or create a crop with Python in the working directory. Moving the arms may also reveal the area more clearly. For now, I will continue orienting the grippers. I estimate the remaining rotation to the intermediate orientation as 0.1 rad for the left arm and 0.11 rad for the right. The final top-down orientation is 0.785 rad from the intermediate orientation. I considered finishing the intermediate motion with 4 steps to avoid overshoot, but the distance from the current orientation to the final quaternion appears to be about 0.9 rad, within the 1.0 rad limit. For the left arm, my rough estimate is 0.1 + 0.785 = 0.885 rad. The proposed position above the red pepper is [−0.17, −0.18, 0.99] m, about 0.124 m from the current left pose. The position above the yellow car is [0.27, −0.11, 0.99] m, about 0.162 m from the current right pose. Both are within the 0.25 m position limit, and the orientation changes are about 0.9 rad. I can therefore target the final quaternion directly for 12 steps; the arms may be nearly at those poses afterward. I need to check the fingers’ swept paths as they rotate over the objects. At link6 Z = 0.99 m, the downward fingertip would be at approximately Z = 0.832 m, which seems safely above the yellow car’s estimated top at 0.81 m. Rotation and translation could still sweep a finger into the car. The current right gripper is at Z = 0.997 m and Y = −0.272 m. With its partly rotated orientation, the fingertips may point forward and downward to roughly Y = −0.19 m and Z = 0.92 m, above the car’s estimated height of 0.82 m.

The beige object at the bottom of the right-wrist view is now clearer. It is definitely an object and looks like a wooden toy animal, possibly a dog or cat, near high-camera pixel (480, 291). Could there be seven objects total: three peppers, two cars, and two wooden toys? I’ll plan to sort both wooden toys with the right arm after the cars, while continuing to inspect all the objects. The grippers are still partway toward the top-down orientation, and the wrist views show the peppers clearly. In the left-wrist image, the red pepper is around pixel (400, 380) and the green pepper around (390, 130). Once the camera is oriented downward and centered over the red pepper, I expect the red pepper to appear at (320, 240). The current left EEF position is (−0.192, −0.212, 0.99) m, and I estimate the red pepper at (−0.17, −0.18, 0.78) m, giving horizontal offsets of +0.022 m in X and +0.032 m in Y. Its appearance to the right of image X = 320 and down at image Y = 380 seems consistent with moving in +X and +Y. I am still unsure how image-down maps to the environment axes once the camera is top-down, since the camera orientation is not exactly the link-frame orientation. I should derive that mapping after completing the rotation. For now, +X and +Y seem likely to be the needed directions. The yellow car is nearly centered in the right-wrist view, around (294, 235). The current right EEF position is (0.277, −0.185, 0.993) m, while the car’s estimated horizontal position is (0.27, −0.11) m, with a +0.075 m Y offset. Its image center is near Y = 230 despite this offset because the camera is not yet pointing downward. I’ll reevaluate after finishing the rotation. Could the beige wooden toy at the bottom be closer to Y = −0.25 m? Assuming Z = 0.78 m, might its high-camera pixel (480, 291) correspond to X ≈ 0.38 m? I’ll calculate that later. I’ll continue toward the same positions above the red pepper and yellow car: left (−0.17, −0.18, 1.0) m and right (0.27, −0.11, 1.0) m, with the final top-down quaternion. I’ll use 10 steps.

Both grippers are nearly in the top-down orientation. The red pepper is well centered in the left-wrist image at pixel (335, 226), and the yellow car is near the center of the right-wrist image at (312, 199). Does the car’s upward image offset mean it is farther along environment +Y? I need to derive the image-to-environment axis mapping from the current camera calibration. I’ll load the wrist-camera extrinsics and inspect their positions and rotation matrices, particularly the right camera’s rotation. Using the object image centroids and assumed center heights, such as Z = 0.78 m, I can estimate their environment-frame coordinates. These position estimates will depend on the assumed heights. I also need to assess the actual gripper opening and object alignment. The left gripper’s black fingers appear near the lower left and right edges of its image. Closing along local Y maps to environment −X, which looks suitable for gripping across the red pepper’s width. The pepper’s diameter may be about 0.07 m, and the finger opening is likely about 0.09 m, so it seems to fit. The yellow car lies diagonally; the right gripper closes along environment X, and the car’s width along X may be about 0.065 m, which also seems suitable.

Is the left wrist camera tilted about 28 degrees from vertical? The top-down gripper orientation points local +X downward, but the camera appears to have a mounting offset and angle. The third row of the extrinsic rotation maps environment coordinates to optical Z and is approximately [0, −0.4768, −0.879], so I interpret the camera as looking downward and toward the front, along −Y. Its Y position is about 0.053 m above the EEF’s Y coordinate, and its Z position is about 0.0835 m below the EEF’s Z coordinate. At Z = 0.8 m, the image-center ray seems to reach Y about 0.009 m below the EEF’s Y coordinate. With the exact top-down orientation, the optical forward direction may be [0, −0.5, −0.866], rather than straight downward. Thus, the image center projects near the link6 XY position, but does not coincide with it exactly. I estimate the red pepper’s position as (−0.165, −0.195, 0.78) m. The left EEF is at (−0.17, −0.181, 0.999) m, so the horizontal corrections are +0.005 m in X and −0.014 m in Y. Should link6’s XY position coincide with the object center for grasping? Since the fingers extend downward along local +X, they should have the same XY position, so I will apply those corrections. The yellow car’s estimated position is (0.268, −0.104, 0.79) m. Relative to the right EEF at X = 0.271 m and Y = −0.12 m, that requires −0.003 m in X and +0.016 m in Y. For the pepper, I might lower link6 to Z = 0.936 m. At its current Z = 0.999 m, the fingertips reach approximately Z = 0.841 m, while the pepper’s top may be at 0.82 m and its bottom at 0.75 m. The finger pads may extend from local X = 0.06 m to 0.157 m. At link6 Z = 0.92 m, their vertical span would be approximately Z = 0.762–0.86 m, suitable for gripping around the middle. At the current height, the fingers remain entirely above 0.841 m and therefore above the estimated pepper top. Lowering by about 0.065 m would bring link6 to 0.934 m. Could the car’s top be at Z = 0.83 m? Alternatively, with an estimated height of 0.065 m above a table at 0.75 m, its top would be at 0.815 m. At link6 Z = 0.94 m, the pads would span approximately Z = 0.782–0.88 m. A grasp height of about 0.935 m seems reasonable for both objects. For this approach, I will target the left arm at (−0.165, −0.195, 0.94) m and the right arm at (0.268, −0.104, 0.94) m, with the exact top-down orientation and both grippers open. I will use 3 steps and inspect the result. The position increment is limited to 0.02 m per step, giving 0.02 × 3 m before any reduction from joint scaling.

The left link6 is still at Z = 0.964 m rather than the previous target of 0.94 m; it lowered only 0.035 m over the 3 steps. The right link6 is at Z = 0.953 m. Perhaps I should lower them another 0.025 m on the left and 0.015 m on the right. In the left wrist view, the pepper appears larger, and the gripper edges around image X = 100 and 540 suggest the fingers are open. The yellow car fills much of the right wrist view. Both objects appear well centered: the red pepper’s centroid is around pixel (325, 245), and the yellow car’s center is around (320, 230). I’ll lower both arms toward link6 Z = 0.935 m for 2 steps, retaining the same X and Y targets since the measured horizontal positions are already close.

The red pepper now appears centered at image X = 320. The yellow car occupies much of the right-wrist image, spanning X = 135–526, a width of 391 pixels. The right gripper’s left finger appears across X = 0–140; its right finger may be beyond X = 640. The pads are near the image edges, and the gripper closes along environment X. Could the car be about 0.1 m wide, matching the gripper’s maximum opening of about 0.1 m? It may be a close fit. My estimate of the car body’s width along environment X is perhaps 0.09 m, so it seems suitable for closure. On the left, the fingers should contact the pepper’s sides around its middle; its diameter may be about 0.07 m. I’ll close both grippers for 2 steps and inspect the next observation.

Closure is still in progress, with interpolated opening commands of 0.488 on the left and 0.703 on the right. In the high-camera view, the red pepper may have shifted downward by about 6 pixels because of gripper contact. I should continue closing until the grasps settle. Could another 2 steps bring the opening commands to 0? The left command appears to have decreased by 0.512 over 2 steps, suggesting a rate of about 0.25 per step, while the right may have decreased by 0.297 over those 2 steps. Why do the opening commands differ when both grippers received the same boolean command for the same number of steps? Could object contact or native gripper physics have blocked changes? The reported opening is the latest interpolated command, rather than a measured finger gap. Perhaps closure speed or different collisions explain the difference. I briefly wondered whether the left started earlier, but both had the same number of steps. The cause remains unclear. I’ll allow 2 more closure steps while holding both wrists stationary.

The right opening command remains near 0.701; could contact be blocking further closure? The left command is now 0.436, a small decrease of 0.052. Perhaps both grippers have reached the widths of their objects. I’ll make a 0.04 m vertical test lift over 2 steps, though the actual rise may be only about 0.03 m, keeping both orientations steady. I’ll target link6 Z = 0.982 m on the left and 0.976 m on the right to check whether the objects move with the grippers.

The yellow car appears to have moved or rotated during the test lift. It now looks differently angled and smaller in the right-wrist view. The red pepper has roughly the same shape and apparent size in the left-wrist view, suggesting it is held. The high-camera evidence is less clear. The red pepper’s current image Y coordinate looks about 273, compared with 274 initially. I estimate its center at about (233, 273) in observation 47 and (228, 272) in observation 53, a shift of −5 pixels in X and −1 pixel in Y, while the EEF stayed at roughly the same XY position and rose by 0.022 m. Would lifting the object decrease its image Y coordinate? I am unsure how the vertical projection changes with Z, including whether there is a −0.866 Z term and whether camera depth decreases with a factor of 0.866. I could calculate the projection. The pepper’s −5-pixel X shift might reflect an off-center grasp, but this is hard to judge. The yellow car’s high-camera center in observation 53 is about (447, 244), compared with an initial image Y coordinate of about 241. If it rose by 0.024 m, I would expect it to move upward by roughly 6 pixels; instead, it appears 3 pixels lower. That suggests it may still be on the table, having rotated during closure and lifting, or may be slipping. The wrist-view scale change strengthens that concern. The car’s apparent width decreased from roughly 400 pixels at link6 Z = 0.936 m to roughly 300 pixels at Z = 0.96 m. This would be consistent with the camera rising away from a stationary car. If the car stayed fixed relative to the gripper, its apparent size should stay the same. More specifically, the pepper’s width is about 295 pixels in both observation 51, at left link6 Z = 0.942 m, and observation 53, at Z = 0.964 m, which suggests it is held. The car’s width decreases from about 390 pixels in observation 51 to about 290 pixels in observation 53, suggesting a failed grasp or slipping, although rotation could also change its apparent width. I should compare the car’s landmarks. In observation 47, it extends from image Y = 140 to 460, a height of 320 pixels. It has the same approximate extent after closure in observations 49 and 51. In observation 53, it extends from Y = 140 to 382, a height of 242 pixels. It is clearly smaller, potentially because it remained on the table or slipped downward during the lift. The right opening command also changed from 0.701 to 0.487 during the lift, perhaps as the fingers closed farther while the car slipped or rotated. In the high-camera view, it seems to remain touching the table at about the same location, with a different orientation from the initial view. It may have been poorly grasped at its edges and slipped during lifting. Alternatively, it could still be held but have rotated downward between the fingers, presenting a different face. There may be a gap below it in the wrist view, but I am uncertain. I could extend the test lift by about 0.04 m and inspect again, though this risks further slipping. If the car remains stationary, it should look smaller as the wrist rises; it might also fall. Another option is to lower the right arm and regrasp across the car’s narrower dimension. For a regrasp, I should reconsider the closing direction. The car’s long axis appears diagonal in the environment XY plane, roughly from bottom-left to top-right in the image. In the top-down wrist view, image X corresponds to environment X, while image Y mixes environment −Y and Z. The yellow car may be a cartoon taxi with its front on the left. In the initial high-camera view, I estimate its front at (429, 246), left and down, and its rear at (461, 229), right and up. This suggests its long axis runs diagonally along environment +X and +Y. I also estimate its projected long axis as about 50 pixels horizontally and 25 pixels vertically, corresponding to approximately 0.12 m in X and 0.08 m in Y. Closing along environment X may therefore contact the front and rear rather than the sides. That could work, but may be unstable. A better closing direction could be perpendicular to the long axis. The current local Y axis, which is the closing direction, points along environment −X. I could aim it approximately along [−0.7, 0.7, 0] or [0.7, −0.7, 0] by yawing the top-down orientation about environment Z by ±45 degrees. The current local axes are X = −environment Z, Y = −environment X, and Z = +environment Y. Applying Rz(θ) maps local Y to [−cos θ, −sin θ, 0]. At θ = −45 degrees, that becomes approximately [−0.707, 0.707, 0], perpendicular to the car’s estimated [+X, +Y] long axis, since −1 + 1 = 0. The proposed quaternion would be q_new = Rz(−45 degrees) × q_top, or, in wxyz order, [cos(−22.5 degrees), 0, 0, sin(−22.5 degrees)] multiplied by [0.5, −0.5, 0.5, 0.5]. I can calculate it later if a regrasp is needed. First, I will extend the test lift to determine whether the car is held before transporting it. I considered another 0.04 m lift for both arms, with 2 or 3 steps. After the previous 2 steps, the right link6 reached Z = 0.96 m rather than its 0.976 m target, and the left reached Z = 0.964 m rather than 0.982 m. Another short lift toward about Z = 0.99 m should make a failed grasp clearer. I will use 2 steps, targeting left link6 Z = 1.0 m and right link6 Z = 0.995 m, with both grippers closed and their orientations steady. If the car drops, I will recover and regrasp.

The yellow car looks smaller again in the right-wrist view, about 220 pixels wide and extending from image y = 110 to 310. The fingertips are near its bottom, but may not be holding it. The opening command is now 0.177, nearly closed; could the car have slipped out? In the high-camera view, the car is at approximately pixel (445, 248) and appears to remain on the table beneath the gripper. I conclude that this grasp failed and needs to be retried with a better orientation. The red pepper is now at high-camera image y = 265, compared with 274 initially on the table. I am unsure how far it has lifted, but it appears to be held. I can transport the pepper toward the middle basket while the right arm regrasps the yellow car. A possible left-arm transfer pose is X = 0 m, perhaps Y = 0.05 m, and Z = 1.1 m. I need enough collision clearance: the left link6 is currently at Z = 0.986 m, its fingertips reach about Z = 0.828 m, and the pepper’s bottom may be at Z = 0.77 m. I should lift link6 to Z = 1.08 m for the transfer to clear the basket rim, estimated at Z = 0.84 m. Before transferring, I should locate the basket center more accurately. Assuming the tabletop is at Z = 0.75 m, could the basket’s interior bottom be at Z = 0.76 m? The blue basket’s interior center may be near pixel (320, 177); initially it spans roughly image y = 141–212. I could estimate its environment-frame center from an interior-bottom pixel around (320, 175), assuming Z = 0.76 m. The earlier back-projection of pixel (320, 190) at Z = 0.76 m gave Y = 0.047 m. At image y = 177 and Z = 0.76 m, I estimate Y = 0.081 m. Alternatively, the back rim is at image y = 141 and the front rim at y = 211, both perhaps at Z = 0.84 m. Their center might be around image y = 176 at Z = 0.84 m, corresponding to perhaps Y = 0.04 m. I should calculate this. Could the actual basket center be at Y = 0.12 m? The high camera is at (0, −0.41, 1.308) m and looks toward +Y and downward. I estimate that the table extends from Y = −0.4 to +0.4 m, with the baskets behind the objects, perhaps at Y = 0.12 m. If the blue basket’s interior center is near pixel (320, 174) at Z = 0.75 m, might its back-projected Y coordinate be 0.089 m? A tentative basket center is X = 0 m, Y = 0.1 m. Another estimate, using an interior-bottom pixel near (320, 179) at Z = 0.76 m, gives perhaps Y = 0.075 m. I’ll use a script to compare the back-projections.

The beige object at high-camera pixel (480, 291) back-projects to X = 0.307 m and Y = −0.218 m at Z = 0.78 m, rather than my earlier estimate of X = 0.38 m. The beige object near right-wrist pixel (392, 420), also evaluated at Z = 0.78 m, gave X = 0.305 m and Y = −0.218 m. Those estimates agree, so I take the table height of Z = 0.75 m and object-center height of Z = 0.78 m as accurate. I will track the beige wooden toy at approximately (0.307, −0.218) m in XY. Could the rocking horse be at approximately (0.4, −0.06) m? Its initial high-camera pixel (502, 222), evaluated at Z = 0.8 m, gave (0.384, −0.073) m, but its actual base might be at image y = 235. I will revisit that later. The yellow car’s current high-camera center, approximately (445, 248), gives X = 0.262 m and Y = −0.124 m at Z = 0.78 m. The right EEF is at X = 0.268 m and Y = −0.105 m, so the car is about 2 cm closer in Y. It appears to have moved about −0.02 m in Y from its initial position after slipping. I should regrasp at its current center with a revised orientation. I could use both the high and wrist views to refine the grasp position. In observation 55, the right-wrist car center might be around (305, 210), evaluated at an object height of Z = 0.79 m; would that give X around 0.267 m, and what would Y be? Another possible centroid is (305, 220). The car spans approximately image x = 190–420 and y = 110–315, giving a center near (305, 213), but tilt and perspective shift the apparent top. Treating high-camera image y = 248 as a base point at Z = 0.75 m gives X = 0.28 m and Y = −0.108 m. At a center height of Z = 0.79 m, the estimate might instead be X = 0.258 m and Y = −0.130 m. I need a grasp center based on the three-dimensional shape, since the top and base project differently. An alternative is to triangulate a corresponding landmark between the high and wrist views rather than assume its height. The wheel corners may be recognizable, although the car is small in the high-camera image. Perhaps a yellow or white feature on top could serve as a correspondence. I could use the paired camera projections to estimate the center’s Z coordinate. Known table-contact points may be better: the wheel bottoms should be at Z = 0.75 m. The car’s bottommost point is around high-camera pixel (443, 259), possibly a tire-contact point, and around wrist pixel (307, 317). Do those pixels correspond to the same frontmost bottom point? If so, I should be able to solve for it. A simpler recovery is to improve the grasp orientation and lower the fingers. The grasp failed while closing along the car’s long axis, and perhaps the fingers were also too high. At right link6 Z = 0.936 m, the fingertips reached Z = 0.778 m. If the car is about 0.05 m high, the pads spanning roughly Z = 0.78–0.876 m should have gripped it, but the opening command remained at 0.701 before it slipped during lifting. Could that mean there was only fingertip contact against the upper sides? Lowering link6 to Z = 0.915 m would put the fingertips at Z = 0.757 m, near the table, and let more of the pads engage the body. The pepper grasp worked at link6 Z = 0.942 m; could the car be taller? Its roof appears to be around Z = 0.82 m, with its sides extending down to Z = 0.75 m. Fingertip contact at Z = 0.78 m could catch its underside. I think a grasp at link6 Z = 0.915 m, about 2 cm lower, with the closing direction across the width, would be better. I can do this while the left arm transfers the pepper. The proposed left-arm pose over the middle basket is (0, 0.08, 1.10) m. From the current pose (−0.166, −0.195, 0.986) m, I calculate a distance of √(0.166² + 0.275² + 0.114²) = 0.341 m, exceeding the 0.25 m limit. An intermediate pose at (−0.08, −0.04, 1.08) m gives √(0.086² + 0.155² + 0.094²) = 0.201 m, within the limit. From there, the basket pose (0, 0.08, 1.1) m is about 0.14 m away. For the right arm, I will open the gripper and rotate its top-down orientation by −45 degrees about environment Z, then lower for the regrasp. Should I rotate at link6 Z = 0.98 m or 0.97 m? The car is on the table near X = 0.26 m and Y = −0.124 m, while the right EEF is at (0.268, −0.105, 0.983) m. At link6 Z = 0.98 m, the fingertips would reach approximately Z = 0.822 m, above the car roof if it is around Z = 0.80 m. The −45-degree yaw changes the orientation by 0.785 rad, within the 1.0 rad limit. My proposed right target is (0.26, −0.124, 0.97) m with the revised quaternion. The left transfer and right rotation appear suitable for concurrent execution because the arms remain separated: the left moves toward the center while the right stays near the car. I should ensure that the pepper remains held and that the transfer clears nearby objects. The left path from (−0.166, −0.195) m toward (−0.08, −0.04) m at Z = 1.08 m seems clear of the green pepper estimated at (0.035, −0.18) m, since the left arm stays at negative X until later. The right regrasp needs care around the beige wooden toy at (0.307, −0.218) m, about 0.1 m behind the car. With the fingers pointing vertically, their length does not extend horizontally, but the rotated opening runs diagonally and may extend in Y. The toy and car center at (0.26, −0.124) m are about 0.106 m apart. A maximum opening of about 0.1 m, plus finger thickness, could bring the gripper close to the toy. It is probably clear, but I should proceed carefully. I will now calculate the quaternion for the −45-degree yaw.

The test lifts support transferring the red pepper, while the yellow car needs a fresh grasp. I’ll keep the pepper held and raise it toward the middle basket through an intermediate pose, while opening and rotating the right gripper to close across the car’s narrower width.

The yellow car’s long axis now appears vertical in the right-wrist image, while the gripper closes horizontally, which should give contact across its width. The open fingers are around image x = 110 and 540, with the car centered at x = 320. The current orientation is between the top-down pose and the −45-degree yaw target. I should finish that rotation, then lower link6 to Z = 0.915 m for the grasp. For the left arm, I want to continue toward the middle basket at (0, 0.075, 1.10) m. From its measured position of (−0.146, −0.144, 1.017) m, the target displacement is approximately (+0.146, +0.219, +0.083) m, giving a distance of about 0.276 m, which exceeds the 0.25 m limit. An intermediate waypoint at (−0.06, −0.02, 1.09) m would have a displacement of (+0.086, +0.124, +0.073) m and a distance of about 0.167 m. The earlier target (−0.08, −0.04, 1.08) m failed from (−0.166, −0.195, 0.986) m, but it might be reachable now that the arm is closer. I could instead target (−0.04, 0.03, 1.10) m: its displacement is (+0.106, +0.174, +0.083) m, with an estimated distance of 0.222 m. This may be above the front part of the basket at Y = 0.03 m; the eventual center target should be around Y = 0.07 m. I initially considered 10 steps for that left-arm waypoint and 6 steps for the right arm to finish the −45-degree yaw while moving to (0.26, −0.124, 0.94) m, a 0.03 m lowering. Rotating first at Z = 0.97 m would avoid bringing the fingers near the car before alignment is complete. Lowering and rotating together toward Z = 0.94 m could bring them close sooner, although roughly 0.4 rad of rotation remains and I estimate the fingertips at Z = 0.86 m, above the car’s estimated top at Z = 0.82 m. With a 6-step approach, the right link6 might reach about Z = 0.95 m with the rotation nearly complete, after which I could inspect and make the final descent. The step count applies to both arms, so I will choose 8 steps, keeping the left gripper closed and the right gripper open. The left arm may reach only partway toward its waypoint, while the right may finish its alignment.

I noticed the green pepper near pixel (237, 234), below the held red pepper, as the left arm moved. It was initially on the table near pixel (235, 237), and in the high-camera view of observation 69 it appears to be near (237, 234). It seems to have stayed on the table. The yellow car looks large again in the right-wrist view, with its long axis vertical. The right wrist has not yet reached the target quaternion; I estimate the remaining rotation as 0.14. Its gripper is open at link6 Z = 0.942 m. I will finish the rotation and lower it by 0.02 m to Z = 0.922 m. For the left arm, I could use another short waypoint at (−0.11, −0.06, 1.07) m from its current position of (−0.134, −0.113, 1.036) m. I estimate that distance as 0.066 m, and it will likely pass the precheck. Alternatively, I could aim for (−0.10, −0.04, 1.08) m, with an estimated distance of 0.105 m. I will continue incrementally with that second waypoint, keeping the pepper held, while targeting the right arm at (0.26, −0.124, 0.922) m with the revised quaternion and its gripper open. I will use 5 steps.

Even the target I estimated to be 0.105 m away failed the precheck, with about 20 mm of position error. Perhaps the left arm is near its reach boundary in X and Y with the current orientation. I should consider changing the orientation or path. The previous target, (−0.12, −0.08, 1.06) m, passed the precheck, and the measured left position is still (−0.134, −0.113, 1.036) m, so I could finish moving to that waypoint and reassess. The target at X = −0.1 m, Y = −0.04 m may be beyond the arm’s reach because of its extension. Tilting the gripper forward might help it reach the basket. Could I release the pepper from the side or from a distance? If the middle basket is centered at X = 0 m, Y = 0.08 m, a gripper at X = −0.1 m, Y = −0.04 m would not be close enough: the held pepper extends downward, and I need it above the basket. Perhaps the actual basket center is at Y = 0 m. Could I release at its left front edge? I should not attempt that approach. Another possibility is to hand the pepper to the right arm near X = 0 m, Y = −0.15 m, where the right arm could reach it and then place it in the middle basket. A handoff would be complex but seems doable. Alternatively, the left arm could temporarily place the pepper near the front center of the table for the right arm to pick up. The right arm is already working on the car. I could put the pepper down near X = −0.1 m, Y = −0.05 m for a later pickup, closer to the center than its current position, although that would be unnecessary if the right arm could have handled everything. The left arm could instead be useful for placing cars in the nearby left basket, with the right arm transferring them to the left side. For now, however, the left arm holds a pepper and has not been able to reach the middle basket. A tilted orientation might still resolve this. I considered exploring the kinematics analytically by reading a URDF or local robot model, but that might count as accessing simulator internals. I will avoid that and use the measured robot state. Perhaps the chosen top-down orientation is limiting the left arm’s reach. The alternative top-down quaternion [0.5, 0.5, 0.5, −0.5] in wxyz order maps local Y to environment +X and requires a rotation of π rad from the initial orientation. It might allow a different joint configuration and reach. A 180-degree wrist roll changes joint 6 only and should not greatly affect position IK, but it might avoid a joint limit. The current top-down orientation has local Z pointing along environment +Y, with the wrist camera tilted forward. The alternative has local Z pointing along environment −Y, with the camera tilted backward. Could that be more suitable for reaching farther along +Y? Local X still points downward, so positional reach should not depend on roll except through joint 6 limits, but its permitted range may constrain the IK. Joint 6 started at 0 rad; what is its current value? I will read current_state from the initial observation and observation 69 to inspect the measured joint configurations.

The left arm’s joint angles are approximately j2 = 1.98 rad, j3 = 1.856 rad, and j4 = −1.446 rad. The right arm’s corresponding angles are j2 = 1.84 rad, j3 = 1.288 rad, and j4 = −1.017 rad. Perhaps the left arm is near a joint-2 maximum of 2.0 rad. Advancing along +Y might require j2 to exceed 1.98 rad, which could explain the local precheck failures if that limit is indeed 2.0 rad. Tilting the gripper forward might let it reach farther without exceeding that limit. Does the top-down orientation require the arm to be more folded? Extending forward might require j2 > 2.0 rad, which would be impossible under the hypothesized limit. Raising link6 to Z = 1.08 m may also require a larger j2, so perhaps that target was too high. Lowering Z might provide more reach while keeping j2 within its limit. I initially considered transferring at link6 Z = 0.99 m instead of 1.08 m, with the pepper’s bottom perhaps around Z = 0.79 m. At the held pose of link6 Z = 0.986 m, could its bottom instead be around 0.80 m? Using the estimated geometry, the pepper was grasped at link6 Z = 0.942 m while resting on the table at Z = 0.75 m, with its center at Z = 0.78 m. The lift to 0.986 m was +0.044 m, putting its estimated center at 0.824 m and bottom at 0.79 m. To clear the estimated basket rim at Z = 0.85 m, link6 would need to be at least 1.046 m, so a height of 1.06 m would be needed. Could a deeper regrasp make the pepper sit higher relative to link6? Grasping with link6 at Z = 0.92 m and the pepper center at 0.78 m would give a relative center height of −0.14 m. At link6 Z = 1.03 m, its center would then be at 0.89 m and its bottom at 0.85 m. With the current estimated relative center height of 0.78 − 0.942 = −0.162 m, link6 needs to be around 1.05 m. Another possibility is to tilt forward and release over the near edge from X = −0.1 m, Y = −0.04 m. The pepper might fit inside if the basket’s front edge is at Y = −0.02 m and its X extent is −0.13 to +0.13 m. The currently held pepper, at approximately X = −0.134 m and Y = −0.113 m, is not over the basket. If I could reach X = −0.08 m, Y = 0 m, Z = 1.02 m, its estimated bottom would be at 0.824 m, perhaps just below the rim but above the front edge, so there could be a collision. Tilting the wrist and releasing when the object center is over the basket may be an option. For now, I’ll try the lower left target (−0.10, −0.04, 1.02) m. This has a Z change of −0.016 m from the measured pose, and I estimate the target distance as about 0.1 m. The precheck may pass if lowering reduces j2. I’ll keep the pepper held, lower the open right gripper toward Z = 0.922 m for the car approach, and use 5 steps.

The lower path is working. The left link6 is now at (−0.117, −0.077, 1.024) m, and the pepper may be over the gap at the blue basket’s front-left corner. In the high-camera view, the red pepper is at pixel (256, 198), while the blue basket spans X = 263–376 and Y = 140–211. The held pepper is just left of the basket’s edge. Moving to X = −0.08 m and Y = −0.03 m might bring it over that edge. I could target (−0.07, −0.02, 1.02) m, an estimated distance of 0.077 m; perhaps this will pass the precheck. The yellow car now appears very large in the right-wrist view, spanning the full image vertically and X = 150–470, with the fingers at the edges. Is it centered, and could the gripper be too low? The car’s top now appears beyond the bottom of the image, toward the front, but the object is between the pads, so I will close the gripper. I initially considered 2 closure steps while moving the left arm a little farther. I will instead use 3 steps, targeting the left link6 at (−0.07, −0.02, 1.025) m with the pepper still held, and holding the right link6 at Z = 0.923 m while closing its gripper. The left arm may move about 0.06 m during those steps.

The left target again exceeded what the local IK search could reach. I’ll reduce the left adjustment to about 0.03 m, targeting (−0.10, −0.055, 1.024) m. I estimate the target distance as 0.028 m, which is within the command distance limit. I can use short actions of 2–3 steps while closing the right gripper on the car. I’ll use this smaller left target for the next action.

After 3 steps of closure, the right gripper’s opening command is 0.416, and the car appears to be between the fingers. I’ll now test-lift it. In the high-camera view, the red pepper is near pixel (265, 192), while the blue basket spans image X = 264–377. Is the pepper within the basket’s left edge? Its center at image X = 265 appears to be over the left rim, so it is not ready for release. Ideally, I would move it inward toward environment X = 0 m, but reach remains an issue. I’ll continue with small increments. The measured left link6 position is (−0.106, −0.064, 1.022) m. I considered targeting (−0.08, −0.03, 1.022) m, an estimated distance of 0.045 m. The earlier target with X = −0.07 m and Y = −0.02 m failed from X = −0.117 m and Y = −0.077 m, at an estimated distance of 0.077 m; this shorter move might pass. I’ll instead try (−0.085, −0.035, 1.024) m, approximately 0.04 m away. For the right arm, I’ll target link6 Z = 0.96 m, a 0.037 m test lift. I’ll use 3 steps.

The car’s appearance changed drastically in the wrist view—could it now be upside down, or am I seeing its roof or hood? Its apparent size remains large, and the right gripper’s opening command is stable at 0.409. It is likely held and has rotated into a stable orientation while moving with the gripper. In the high-camera view, the yellow car is around pixel (453, 240), perhaps at image y = 239 compared with y = 248 on the table, which also suggests it has lifted. The left link6 is at (−0.098, −0.053, 1.020) m. The red pepper appears around high-camera pixel (267, 190), still over the middle basket’s left rim. I should move it toward the center at environment X = 0 m, perhaps in small increments of 0.02 m. One possible target is (−0.075, −0.025, 1.02) m, which I estimate is 0.037 m away. I can continue this while raising the right arm to Z = 1.02 m and preparing to transfer the car toward the left basket. The left basket’s estimated center is X = −0.32 m, Y = 0.08 m. It is about 0.6 m from the right arm’s current horizontal position of (0.26, −0.125) m, beyond the 0.25 m target-distance limit, so I will need waypoints across the middle. Can the right arm reach the left basket, or will it encounter similar joint limits as it crosses into negative X? It may reach the center and then the left side; otherwise, I may need a handoff. Reaching from the right side requires roughly 0.6 m across X and 0.2 m along Y, which might be impossible. The left arm would be the natural choice for the left basket, but it is currently holding the pepper. I may need to exchange objects between the arms, or have the left arm place the pepper into the middle basket from its left edge while the right arm reaches across to place the car. Perhaps the right arm’s maximum reach is about 0.8 m. The bases appear to be at approximately X = −0.3 m and X = +0.3 m, separated by 0.6 m, and each arm may be about 0.65 m long. They might therefore reach the opposite baskets. The left arm’s middle-basket reach seems limited by joint 2, but the small, lower waypoints are working, so a low-Z path may also let the right arm reach left. I can try that later. Another possible division of work is to finish placing this pepper and car, then have the right arm handle the remaining peppers and wooden toys while the left handles the red race car, perhaps after repositioning it. Could the left arm reach that car at X = 0.15 m using small increments? I still have 1020 control steps available. For now, I can continue the left arm toward (−0.07, −0.02, 1.02) m. I considered moving the right arm toward the left through (0.18, −0.04, 1.04) m, an estimated distance of 0.131 m from (0.26, −0.125, 0.957) m. That initially seems safe, but the held car would move diagonally across the front of the middle basket. The red race car is behind that path at approximately (0.15, −0.21) m, and the green pepper is around (0.035, −0.18) m; the proposed path runs through Y ≈ −0.1 to −0.04 m. Could the held object be around Z = 0.84 m, with its bottom perhaps at 0.78 m, and strike the blue basket when crossing Y = 0 m? Using a grasp link6 height of 0.923 m and an estimated car-center height of 0.78 m, the current link6 height of 0.957 m gives an estimated car center at 0.814 m and bottom at 0.775 m. At link6 Z = 1.04 m, its center would be about 0.897 m and its bottom about 0.858 m, just clearing the estimated rim at 0.84 m. I should raise the right arm to Z = 1.05 m before the transfer. I can target (0.23, −0.105, 1.05) m, which I estimate is a small 0.096 m move, while making the left adjustment near (−0.075, −0.025) m. I’ll use 5 steps with both grippers closed.

The left target, estimated to be 0.047 m away, still failed the precheck, likely because joint 2 is near its limit. A smaller adjustment to X = −0.085 m and Y = −0.04 m, perhaps about 0.02 m away, might pass. Rather than continue with failed position targets, I should consider changing the orientation to allow more reach. Could rolling the left wrist help? Joint 2 may currently be around 2.04 rad. I’ll inspect the measured joint state.

The left arm’s measured joints are approximately j2 = 2.326 rad, j3 = 2.34 rad, and j4 = −1.58 rad. Perhaps joint 3 has a maximum of 2.4 rad and is limiting the reach. Would lowering link6 from its current Z = 1.02 m to 0.99 m reduce joint 3’s angle and make the arm less folded? The earlier raised target from Z = 1.036 m toward 1.08 m failed, whereas lowering worked. However, I estimate the pepper’s bottom at 1.02 m plus a relative offset of about −0.19 m, giving Z ≈ 0.83 m, near the estimated rim height of 0.84 m. Lowering to 0.99 m could hit the rim if the pepper is over it. Instead, I could tilt the pepper over the rim while keeping link6 high. Changing the orientation would move the fingers and held object forward without requiring link6 to advance. In the current top-down pose, local +X points along environment −Z, and I estimate the pepper’s center about 0.16 m along that direction from the EEF. Tilting the fingers forward by 45 degrees would make local +X approximately [0, 0.707, −0.707], giving the pepper center a relative Y offset of +0.113 m and Z offset of −0.113 m. With link6 remaining at Y = −0.053 m and Z = 1.02 m, the center would be around Y = +0.06 m and Z = 0.907 m. My current center-height estimate is Z = 0.86 m, based on the 0.16 m offset, with the bottom around 0.82 m. The tilt would therefore move the pepper both forward and upward. It may rotate during the motion, but should remain stable if the grasp is secure. Would this be a rotation about local Y? I can express it as a positive rotation about environment X. Applying Rx(θ) to the current local +X direction, [0, 0, −1], gives [0, sin θ, −cos θ], so θ = +45 degrees points the fingers forward along +Y and downward along −Z. The new quaternion is q_new = Rx(45 degrees) × q_top. Local Y remains along environment −X, so the closing axis stays along environment X and the gripper opening remains unchanged. Positive environment X is negative local Y. The whole-orientation change is 0.785 rad, within the 1.0 rad command limit. I would keep link6 at (−0.098, −0.053, 1.02) m. The fingertips are currently around Y = −0.053 m and Z = 0.862 m, with the pepper center perhaps at Y = −0.053 m and Z = 0.86 m. After the tilt, I estimate the fingertips at Y = +0.058 m and Z = 0.909 m, and the pepper center around Y = +0.06 m and Z = 0.9 m, over the basket interior. The sweep would carry the center from approximately (Y, Z) = (−0.053, 0.86) m to (+0.06, 0.90) m. The basket’s front edge may be at Y = −0.01 m, so the pepper is already near it. Does the pepper rise from the start of the rotation? With a fixed EEF and relative object vector d[0, sin θ, −cos θ], its vertical rise is d(1 − cos θ), while it moves forward in Y. Its bottom will also move as its shape rotates, but it likely clears the rim. This tilt looks like a useful way to gain reach, and the right arm can lift simultaneously. I’ll calculate the quaternion for applying Rx(45 degrees) to the top-down orientation.

Applying a 45-degree rotation about environment X to the top-down orientation gives approximately [0.653, −0.2706, 0.2706, 0.6533] in wxyz order. This matches the intermediate orientation used at the start, halfway between pointing horizontally forward and pointing downward, with the fingers directed diagonally forward and down. I’ll use it to tilt the left gripper forward by 45 degrees while holding its current position. The orientation change is 0.785 rad. The right-arm lift target at (0.23, −0.105, 1.05) m is probably valid. Both arms’ targets should be within the command limits. I’ll execute this combined motion for 8 steps.

The left arm has only completed part of the tilt after 8 steps—perhaps 0.22 rad? Its current wxyz quaternion is [0.566, −0.422, 0.422, 0.568], compared with the target of approximately [0.653, −0.270, 0.270, 0.653]. I estimate its angle from the top-down orientation as perhaps 0.44 rad, about 25 degrees. In the high-camera view, the red pepper is now near pixel (269, 170), over the blue basket’s left interior; the basket spans image x = 263–377 and y = 140–211. Completing the tilt to 45 degrees should move the pepper farther inward and upward. I am still unsure about its X position: does image x = 269 correspond to environment X around −0.11 m? Where is the basket’s left edge in environment X, and how does the projection change at Z = 0.9 m? I initially considered 6 steps to finish the rotation. The yellow car appears near high-camera pixel (452, 210), perhaps above the red basket. The right link6 is at (0.235, −0.111, 1.032) m, and the car’s image-center y coordinate is about 209. The red basket spans image x = 390–510 and y = 140–212, so the car appears over its front edge, which is not its destination. The right arm moved left by 0.025 m, forward by 0.014 m in Y, and upward by 0.075 m. The lift, and perhaps the orientation, may explain why the car’s image y coordinate changed from about 240 to 210. I interpret it as held above the table in front of the red basket’s front edge. To reach the left basket, I need to move the car left across the middle with clearance above the baskets, initially considering link6 Z = 1.05 m. At the current link6 height of 1.032 m, the car may be around Z = 0.9 m. Using an estimated relative center-height offset of −0.14 m gives a center height of about 0.89 m and a bottom height of about 0.85 m, just above the rim. I can begin moving the right arm toward the center at (0.12, −0.04, 1.08) m while the left arm finishes its tilt at the same position. The higher Z = 1.08 m should provide clearance for moving across the blue basket toward the white basket. I estimate the right target distance as 0.145 m, with its orientation unchanged; it will likely pass the precheck. I’ll use 8 steps for the combined motion.

The right-arm target failed the precheck, perhaps because it was too high and too far forward. I’ll use a shorter right-arm waypoint at (0.18, −0.08, 1.05) m, which I estimate is 0.079 m from its current pose. I’ll keep the left arm’s tilt target unchanged and use 6 control steps for the combined action.

The red pepper is mostly occluded by the left gripper in the high-camera view near pixel (270, 156), and it seems to be inside the blue basket’s left rim. The wrist view shows the blue basket behind and below it. I could finish the tilt to 45 degrees with 4 more steps and then release, but I need to make sure the pepper will fall inside rather than onto the rim. Its high-camera center may be around (269, 156), while I estimate the blue interior at image x = 280–360 and y = 150–180. Is the pepper still at the left inner wall? It is centered at image x = 320 in the wrist view, but that view does not show all the basket edges. I can estimate the held pepper’s environment-frame position from the EEF pose and orientation. The distance d along local +X might be about 0.145 m. However, at the grasp pose, link6 was at (−0.165, −0.194, 0.942) m and I estimated the object center at (−0.165, −0.195, 0.78) m, giving d = 0.162 m. For a forward tilt θ, local +X is [0, sin θ, −cos θ]. The current tilt might be about 32 degrees. The current wxyz quaternion is [0.608, −0.359, 0.36, 0.610], compared with the 45-degree target whose components include 0.653 and −0.270. I am uncertain about the angle from the top-down pose: the observation-88 quaternion components 0.566 and −0.422 might correspond to about 16 degrees. Comparing the top-down components 0.5 and −0.5 with the 45-degree components 0.653 and −0.270, I roughly estimate an interpolation fraction of 0.6 for the current 0.608 component, giving 27 degrees. At observation 94, perhaps the tilt is about 33 degrees. I could calculate the current local +X direction from the quaternion to check. Using d = 0.162 m, the estimated object center is (−0.095, −0.048 + 0.162 sin θ, 1.024 − 0.162 cos θ) m. At θ = 33 degrees, that gives Y = 0.040 m and Z = 0.888 m. This would put the pepper above the blue basket at X = −0.095 m, Y = 0.04 m, near its left side. If the basket’s inner X range is −0.11 to +0.11 m and the pepper’s radius is 0.04 m, its center at X = −0.095 m means it extends to X = −0.135 m, outside the interior. I should shift link6 right toward X = −0.05 m. The basket center is at X = 0 m, and the pepper’s center should have the same X coordinate as the EEF under this local-axis estimate. A +0.05 m shift would give X = −0.045 m, so one possible target is (−0.045, −0.048, 1.024) m with the 45-degree orientation. About 0.2 rad of rotation may remain. The tilted posture might allow this movement despite the earlier top-down reach limitation; changing joint 1 may be easier. I also considered a smaller target at X = −0.055 m, a +0.04 m shift. I will finish the left tilt to 45 degrees and target X = −0.05 m. I expect that to put the pepper near X = −0.05 m, Y ≈ 0.07 m, Z ≈ 0.90 m, inside the blue basket before release. Meanwhile, I will advance the held car toward the center with the right-arm waypoint (0.12, −0.06, 1.05) m. From its measured pose (0.188, −0.086, 1.045) m, that is about 0.073 m away and within the position-command limit; it may pass the precheck. I will use 5 steps and keep both grippers closed.

The left wrist view clearly shows the red pepper over the center of the blue basket, so I can release it now. It may drop about 10 cm into the basket. I initially considered opening the left gripper for 2 steps; after verifying the placement, I will retract that arm upward and backward. The right gripper still holds the car near the blue basket’s right edge. Reaching the left basket requires carrying it across the blue basket. I considered right-arm waypoints at (0.07, −0.04, 1.05) m or (0.05, −0.02, 1.06) m. Its current measured position is (0.142, −0.071, 1.045) m. A target at (0.05, −0.03, 1.05) m is about 0.104 m away by my estimate and may be valid. I will use 3 steps, opening the left gripper while keeping its position fixed and moving the right arm toward that waypoint with the car held.

The right arm may be reaching a limit while crossing toward the center at link6 Z = 1.05 m with a top-down orientation yawed −45 degrees, giving a diagonal closing direction. Perhaps tilting it forward about environment X, lowering Z, or returning to the standard top-down yaw would improve its reach. Joint 6 is about 0.909 rad; I am unsure of joint 1’s angle or whether moving farther left would require more rotation there. The failed target had about 31 mm of position error. A smaller waypoint at (0.10, −0.055, 1.04) m, which I estimate is 0.046 m away, might pass. Ultimately, however, the right arm needs to reach X = −0.3 m, which is likely beyond its direct reach. A central handoff to the left arm seems feasible after it releases the pepper. The left link6 is now at (−0.055, −0.047, 1.025) m, tilted approximately 45 degrees, and its gripper will be open after release. The right arm could bring the car to (0.02, −0.05, 1.0) m, where the left gripper could grasp it from the side or above and then tilt forward toward the white basket. Could the right arm instead place the car by tilting forward and left? With its base at X = 0.3 m and the white basket at X = −0.32 m, I estimate a 0.62 m X distance plus 0.6 m in Y and judge that direct reach impossible. A handoff is likely necessary. The red race car could be transferred the same way. I’ll use the left arm for left-basket placements, with the right arm delivering cars to a central handoff area and handling peppers for the middle basket and wooden toys for the right basket. I initially used the left arm for the nearby red pepper, though the right arm could have handled it. First, I’ll release the red pepper over the blue basket. While the left gripper opens, I’ll keep the car held and move the right arm toward the shorter central waypoint at (0.10, −0.055, 1.04) m for 3 control steps.

The red pepper is now resting in the blue basket, and I have verified that placement. I need to reposition the left arm to receive the yellow car. The right link6 is at (0.116, −0.063, 1.039) m with the top-down orientation yawed −45 degrees. That yaw does not change the downward direction of local +X. Assuming the held car extends about 0.14 m along local +X, I estimate its center at (0.116, −0.063, 0.90) m. The left link6 is at (−0.055, −0.047, 1.025) m, tilted forward 45 degrees, with its gripper open. A top-down grasp by the left arm would require aligning link6 over the car’s XY center, (0.116, −0.063) m, at an estimated height of 0.90 + 0.15 = 1.05 m. Moving from X = −0.055 m to X = 0.116 m requires a +0.171 m X displacement. The left arm may not reach that position in a top-down posture, but perhaps it could reach with the fingers tilted rightward and downward. Alternatively, the right arm could bring the car closer to X = 0.05 m. The previous precheck failed when moving from X = 0.142 m toward X = 0.05 m, but from its current X = 0.116 m, a shorter target at (0.07, −0.055, 1.04) m, which I estimate is 0.047 m away, might pass. That would bring the car center to X = 0.07 m. Perhaps the left arm could reach X = 0 m while tilted. A handoff at X = 0 m might work, although the right arm’s maximum reach in this posture may be around X = 0.05 m. The left arm currently reaches X = −0.05 m and might reach X = 0 m with a tilt. With a center gap of 0.05 m and an estimated open gripper width of 0.1 m, perhaps it could grasp a car at X = 0.05 m with left link6 at X = −0.03 m, but the alignment would need care. A table-mediated handoff is another option: the right arm could place the car near (0.05, −0.15) m in XY, and the left arm could pick it up with a forward-tilted grasp. The right arm may be able to place at X = 0.1 m, while the left may reach X = 0 m but not X = 0.1 m. I also considered using the central edge of the blue basket, but I should not pursue that edge placement. It may still be possible for the right arm to reach the white basket by tilting leftward. Just as the left arm gained forward reach by tilting, the right arm could point its fingers leftward and downward, swinging the car about 0.11 m left while moving link6 toward X = 0 m. That would put the car center around X = −0.1 m, still short of the white basket center at X = −0.32 m. Pointing local +X horizontally along environment −X would give an estimated 0.16 m leftward offset: right link6 at X = −0.1 m would put the car at X = −0.26 m. Could the right arm reach X = −0.1 m at Y = 0 m and Z = 1.04 m? Its current X is 0.116 m, and the earlier target at X = 0.05 m failed with about 31 mm of position error. Perhaps shorter steps and a lower Z would allow X = −0.05 m. A 90-degree leftward tilt there would swing the car to X = −0.21 m, at the white basket’s right inner edge. I estimate that basket’s inner X range as −0.43 to −0.21 m, so a car center at −0.21 m would still be too close to the edge; I would want approximately −0.28 m. Right link6 at X = −0.12 m with a −0.16 m object offset would achieve that. A tilted posture and joint-1 rotation might allow X = −0.12 m even though the top-down local search failed. This remains uncertain, and moving across the middle basket while the left arm is at X = −0.055 m could cause an arm collision. A direct handoff to the left arm may be simpler. In the high-camera view, I estimate the car center near pixel (381, 181), perhaps over the blue basket’s right side. The left gripper appears near (294, 137), and another estimate of the car center is (381, 183). Their separation is roughly 95 pixels, which I interpret as about 0.25 m; the actual X difference is about 0.17 m, with other positional differences as well. The left gripper is open now, so I could retract it into clear space and approach the car. One possible retraction is (−0.12, −0.15, 1.02) m with a top-down orientation. A direct target at (0.03, −0.06, 1.06) m is about 0.145 m from its current pose by my estimate; perhaps the current tilted quaternion, approximately [0.653, −0.270, 0.270, 0.653] in wxyz order, would allow it to reach X = 0.03 m. A shorter test target is (−0.01, −0.05, 1.04) m with the same tilt and an open gripper, moving link6 +0.045 m in X above the blue basket. That shorter target would not yet align the fingers with the car. With an estimated 0.16 m extent along local +X at a 45-degree forward tilt, I estimate the fingers around Y = +0.063 m and Z = 0.912 m, or approximately (−0.01, 0.013) m in XY. The car center remains around (0.116, −0.063, 0.90) m, leaving about 0.13 m in X. Perhaps left link6 could reach X = 0.08 m by rotating joint 1 farther. A target at (0.06, −0.11, 1.04) m with the 45-degree forward tilt would put the fingers near (0.06, 0, 0.93) m, which still does not match the car. A true top-down grasp at the current car center requires link6 at the same XY position, and X = 0.116 m is probably beyond the left arm’s reach in that posture. Tilting the left fingers rightward could instead supply the missing X reach. I want local +X to be [sin θ, 0, −cos θ]. Applying an environment-Y rotation to the downward vector gives Ry(φ)[0, 0, −1] = [−sin φ, 0, −cos φ], so φ = −45 degrees would point the fingers rightward and downward. The proposed orientation is Ry(−45 degrees) multiplied by the top-down quaternion. At link6 X = −0.04 m, I estimate the object-center X coordinate as −0.04 + 0.073 m for θ = 45 degrees, reaching a car around X = 0.03 m. At a horizontal 90-degree tilt, the offset would be 0.16 m. Thus, left link6 at X = −0.04 m might grasp a car centered at X = 0.07 m with a diagonal rightward approach. However, rotating the current local Y axis, which points along environment −X, about environment Y would give the closing direction a vertical component. That could grip the car diagonally in a vertical plane and may be unstable. I could choose a different roll so the closing axis stays horizontal and perpendicular to the approach. For example, take local +X = [0.707, 0, −0.707] and local Y = [0, −1, 0] or [0, 1, 0]. Local Z must be their cross product. Writing a = 0.707, [a, 0, −a] × [0, −1, 0] gives [−a, 0, −a], pointing back-left and downward. Using local Y = [0, 1, 0] instead gives local Z = [a, 0, a]. Either mapping might yield a reachable quaternion, but the direct handoff orientation is becoming complicated. A side grasp while the right arm holds the car is another possibility, provided I can plan it precisely. The easiest option may be to use the middle blue basket temporarily as a handoff surface. The car’s final destination must be the left white basket, but an intermediate placement in the blue basket is acceptable as long as I remove it afterward. This would avoid a simultaneous two-gripper grasp. The left arm already reaches the blue basket’s left interior at X = −0.05 m, and the right arm could place the car nearer X = 0.05 m, where the left might reach with a tilt. I considered releasing into the blue basket at (0.1, −0.06) m in XY. I estimate its X bounds as −0.12 to +0.12 m and the car’s length as 0.12 m, so a center near (0.08, 0) m might fit. The current estimated car center is (0.116, −0.063, 0.90) m, above the basket’s right edge. Moving the right link6 about +0.06 m in Y toward Y = 0 m, while retaining X = 0.116 m, would put the center at Y = 0 m near that right edge. After release, the left arm would need to retrieve it around X = 0.1 m. If the car lands near (0.116, 0, 0.8) m, a left-link6 target at (0, −0.05, 0.95) m with a 45-degree forward tilt would put the fingers near (0, 0.06, 0.84) m, still about 0.1 m short in X. I would need either a rightward tilt or more positive link6 X. The earlier shift from X = −0.095 m to −0.055 m at fixed Y succeeded with the forward tilt, so perhaps I can continue toward X = 0 m or 0.05 m. At link6 (0.05, 0, 0.95) m with that tilt, the fingers would reach approximately Y = +0.11 m and Z = 0.84 m. To grasp a car at Y = 0 m, link6 should instead be at Y = −0.11 m. A target at (0.05, −0.11, 0.95) m with the 45-degree forward tilt would therefore give an estimated grasp point of (0.05, 0, 0.837) m. This seems more reachable than the current left pose of (−0.055, −0.047, 1.025) m because it is farther back in Y and lower in Z, though it requires a +0.105 m X move and additional joint-1 rotation. The left arm could then lift the car and carry it to the white basket, perhaps using a forward-left tilt. I am uncertain whether the native task checks could reject a car temporarily placed in the middle basket. I expect native success to depend on the final arrangement, with no early failure for an intermediate wrong basket, so this should be acceptable. A direct handoff would avoid that issue if feasible, but it is more complicated. I also considered placing the car on the table at (0.05, −0.05) m in XY, but that location is occupied by the basket. Moving it to the front central table near (0.05, −0.25) m would allow a table handoff but add travel. Throwing it directly into the white basket would be unsafe and would not provide a controlled placement, so I will not use that approach. I will proceed with a temporary placement inside the blue basket and then have the left arm move the car into the white basket. The middle basket will briefly contain both the car and the red pepper; the left arm will remove the car before the task is finished. I should place it on the basket’s right side, away from the pepper near (−0.05, 0.07) m in XY. A drop of about 0.1 m onto the pepper could disturb it and make the car harder to grasp. The car is not yet safely over the blue interior. Its estimated Y is still −0.063 m because the right gripper remains top-down with a yaw, while the basket’s front edge may be at Y = −0.02 m. It may therefore be above the front rim. In the wrist view, the blue basket is to the left. The high-camera car center appears around (381, 182), or approximately (382, 183) in observation 102. The blue basket spans image X = 260–376 and the red basket X = 390–510, placing the car between them in projection. Its estimated environment X = 0.116 m projects near image X = 382 at Z = 0.9 m, consistent with being at the blue basket’s right edge, estimated at X = 0.12 m. I should move the car forward toward Y = 0.06 m and left toward X = 0.07 m before releasing it. A right-arm target at (0.07, 0, 1.04) m is about 0.080 m away by one estimate, or roughly 0.078 m, and might pass the precheck. The previous target at (0.1, −0.055, 1.04) m moved the arm only partway from (0.142, −0.071, 1.045) m to (0.116, −0.063, 1.039) m. I will use a shorter waypoint at (0.09, −0.02, 1.04) m, estimated to be 0.051 m away, before considering (0.07, 0.02, 1.04) m. The left arm can retreat simultaneously to prepare for pickup. I considered (−0.02, −0.12, 0.98) m with the 45-degree forward tilt and an open gripper, estimating a distance of 0.089 m from its current pose. Moving it away should leave clearance while the right arm positions the held car above the basket. For the immediate action, I will instead target left link6 at (−0.04, −0.12, 0.98) m with the same forward tilt and its gripper open, and right link6 at (0.09, −0.02, 1.04) m with its yawed top-down orientation and gripper closed. I will use 5 control steps. There are 998 control steps remaining. I should keep track of the completed red-pepper placement and the remaining objects: the left green pepper, central green pepper, red car, yellow car currently held, wooden horse, and beige wooden toy. The temporary blue-basket handoff does not change the car’s required final destination, and I can proceed without asking the user.

Even the right-arm target I estimated to be only 0.051 m away failed the kinematic precheck. Could the current orientation be putting a joint near its limit, perhaps joint 1 near its maximum? I’ll inspect the right arm’s current measured joint angles.

The right arm’s measured joints are approximately j2 = 2.248 rad, j3 = 2.282 rad, and j4 = −1.606 rad, near their limits. Moving forward to Y = −0.02 m would require a larger joint-3 angle. Lowering link6 might help, as it did for the left arm. Its current Z is 1.039 m. I could try a right-arm target at (0.09, −0.02, 1.00) m, lowering it by 0.039 m, with an estimated target distance of 0.064 m. However, the held car’s bottom may currently be at Z = 0.85 m; lowering link6 to 1.00 m would put the bottom around 0.81 m, below the estimated basket rim at 0.84 m. The car is currently above the gap between the blue and red baskets, at Y = −0.063 m in front of them, so moving forward into the blue basket at that height would hit the front rim. Instead, I should tilt the car forward and upward over the rim, as I did with the pepper, while holding link6 in place. The right gripper currently has a top-down orientation yawed −45 degrees. Could I tilt it toward environment +Y while preserving the closing direction? Applying Rx(45 degrees) to its quaternion would rotate local +X from downward to forward and downward, but it would also give the closing axis a vertical component. The current local Y closing axis is Rz(−45 degrees)(−X) = [−0.707, +0.707, 0]. Rx(45 degrees) transforms it to approximately [−0.707, 0.5, 0.5]. The car could remain held, although it might slip during rotation. The grasp appears firm, and rotating the gripper should preserve the object’s relative pose, but gravity could cause it to shift. With link6 fixed at (0.116, −0.063, 1.039) m and an estimated object-center offset of 0.14 m along local +X, I estimate the car’s center would move from Y = −0.063 m, Z = 0.90 m to Y = +0.036 m, Z = 0.94 m, with X unchanged at 0.116 m. That would put it over the blue basket’s right edge and may provide enough clearance. I could then make a small leftward link6 move to X = 0.06 m, bringing the car’s center to X = 0.06 m inside the blue basket before releasing it. This tilt may avoid requiring more positional reach from the right arm. I’ll plan to rotate the right gripper by 45 degrees about environment X at its current position while moving the left arm back. First, I’ll calculate the target quaternion as Rx(45 degrees) multiplied by the current −45-degree-yawed top-down quaternion.

The right gripper’s 45-degree forward-tilt quaternion is approximately [0.707, 0, 0.5, 0.5] in wxyz order, an orientation change of 0.785 rad from its current pose. Holding its position with link6 X = 0.116 m should swing the car forward into the blue basket. The left gripper is currently at (−0.055, −0.047, 1.025) m in a tilted posture, with its fingers near the red pepper on the basket’s left side. The car’s swing at X = 0.116 m appears clear of it, so I expect no collision between them. I’ll move the open left gripper back to (−0.04, −0.12, 0.98) m while retaining its current tilt; that target will likely pass the precheck. I’ll hold the right gripper’s position, keep it closed, and target the new quaternion. I’ll use 8 control steps.

The right arm has completed only part of the rotation, about 0.3 rad. In the high-camera view, the car is near pixel (382, 166), still between the blue and red baskets, though perhaps more over the blue basket. The right-wrist view shows the red pepper and blue basket on the left and the red basket on the right; the car’s center appears above the gap. I should finish the forward tilt to 45 degrees. The left gripper may still be high near the basket, but its wrist view shows the red pepper in the blue basket’s center and the open fingers in the foreground. Completing the right tilt should swing the car forward and upward, though I am uncertain whether it will be over the blue basket’s right side or the red basket. Its environment X coordinate remains about 0.114 m, which at an estimated Z of 0.95 m projects to high-camera image x ≈ 380. The blue basket’s right edge is around image x = 376, so the car may be straddling that wall. I will also shift the right link6 left to X = 0.07 m, a planned X change of −0.044 m, while finishing the tilt. The target position is (0.07, −0.06, 1.04) m, with quaternion [0.707, 0, 0.5, 0.5] in wxyz order. The tilted posture may make the precheck easier. I will use 6 control steps, keep the right gripper closed, and hold the left arm in place with its gripper open.

The yellow car may be occluded behind the left gripper in the high-camera view, but the right-wrist view shows its front with the blue basket underneath. It appears to be over the basket interior. I could finish the tilt before releasing; I estimate the remaining orientation distance to the right target as 0.17 rad. Could I release it now? The car’s bottom is likely above the blue basket floor, and its center is at approximately X = 0.072 m. Its Y position is less certain. Estimating the current tilt as 37 degrees and the held-car offset along local +X as 0.14 m gives an estimated center at Y = 0.024 m and Z = 0.927 m. I think the blue basket’s interior spans Y = 0–0.15 m, so this seems suitable. The car’s front points downward in the wrist view, but this temporary placement has no orientation requirement. I’ll open the right gripper for 3 control steps while holding the left arm in place. The car should fall inside the blue basket for the later left-arm transfer.

The yellow car is inside the blue basket on the right, with the red pepper on the left. I need to move the right arm clear so the left arm can pick up the car. The right link6 is at (0.071, −0.058, 1.042) m, with its orientation nearly at the 45-degree forward tilt. I could retract it to (0.18, −0.18, 1.02) m, which I estimate is 0.176 m away, using either a top-down orientation yawed −45 degrees or perhaps the initial orientation. Alternatively, since the right gripper is already open, I could move it directly toward a top-down approach to the red race car, estimated at (0.155, −0.21) m in XY, while the left arm retrieves the yellow car. The red race car is long and thin, so I should close across its width, perpendicular to its long axis. Its high-camera center was around pixel (399, 290), and its length may be about 50 pixels along a down-right diagonal. I initially estimated its axis from (384, 281) to (419, 302), corresponding to approximately +0.08 m in environment X and −0.07 m in Y. Its current high-camera center is around (398, 291), which looks similar. I am uncertain which end is the front. The nose may point left and up in the high-camera view. The race car is not visible in the current right-wrist view because that camera is looking at the basket. In the earlier right-wrist view from observation 99, the red car was to the right, with its long axis running from bottom-left, perhaps the nose, to top-right, perhaps the rear wing. That view was rotated by the gripper’s −45-degree yaw, so I should use the high-camera geometry to determine its environment-frame orientation. In the high-camera view, I estimate the wide black-and-white rear wing at pixel (414, 299) and the nose at (381, 279), giving a long-axis pixel vector of (+33, +20). Back-projecting at Z = 0.77 m gives an estimated X difference of +0.078 m. Image Y increases downward while environment Y decreases; at constant Z, I estimate the Y difference as −0.072 m. This suggests a long axis along [+X, −Y], so the closing axis should be along [+X, +Y] or [−X, −Y]. The top-down orientation yawed −45 degrees has local Y, the closing axis, along (−0.707, +0.707). Its dot product with the race car’s [+X, −Y] direction is −1.414, making it collinear rather than perpendicular. That orientation worked for the yellow car because its estimated long axis was [+X, +Y]. For the red race car, a +45-degree yaw gives a closing axis of (−0.707, −0.707), perpendicular to [+X, −Y], with a dot product of 0. The corresponding top-down quaternion from the earlier calculation is [0.270598, −0.653281, 0.270598, 0.653281] in wxyz order. The right arm’s current quaternion is [0.707, −0.042, 0.529, 0.468], tilted forward. Rotating directly to the +45-degree-yawed top-down pose may require more than the 1.0 rad command limit; I tentatively estimate about 1.7 rad. I could use the zero-yaw top-down quaternion [0.5, −0.5, 0.5, 0.5] as an intermediate, then apply the +45-degree yaw. However, the current orientation is approximately Rx(45 degrees) multiplied by the −45-degree-yawed top-down orientation, and I estimate its distance to the zero-yaw top-down pose as perhaps 1.29 rad, also above the limit. A zero-yaw tilted intermediate may be needed. I should calculate the orientation distances before choosing that motion. I also need to plan the left arm’s grasp of the yellow car. Its current forward-tilted quaternion is approximately [0.653, −0.2706, 0.2706, 0.6533], its link6 position is (−0.041, −0.105, 0.99) m, and its gripper is open. The yellow car’s high-camera center appears around pixel (351, 169). At an assumed Z = 0.8 m, could that correspond to X = 0.066 m and Y = 0.074 m? Using pixel (351, 168) after the drop and Z = 0.79 m might instead give X = 0.066 m and Y = 0.098 m. I need to calculate rather than choose between those estimates. The basket floor may be at Z = 0.77 m, the car center at Z = 0.80 m, and another possible high-camera center pixel is (350, 165). I should use both wrist-camera calibrations to refine the car’s position. The right-wrist view shows the yellow car’s upright front, with its center around pixel (394, 273); the left-wrist view shows only part of it at the right edge. I can back-project a candidate center through the right camera at an assumed Z = 0.80 m. I will load the current wrist-camera extrinsics, camera positions, and back-projections before selecting the grasp targets.

The right wrist camera is yawed, which makes the position harder to interpret. The yellow car’s center is likely around (0.055, 0.04, 0.8) m in the environment frame. For its high-camera pixel center at (351, 168), assuming Z = 0.8 m, could X be about 0.066 m? I am still unsure of the corresponding X and Y coordinates. My mental scale estimate is inconsistent. I recall that at Z = 0.8 m, image u = 448 gave X around 0.29 m, suggesting a scale of 0.00455 m per pixel; multiplying 31 pixels by 0.00455 gives 0.141 m. Alternatively, I recall X perhaps being 0.294 m for pixel (448, 175), while u = 351 might give X around 0.066 m. The horizontal projection depends on depth, which varies with Y and Z. I’ll use a script to calculate the back-projections rather than rely on these uncertain mental estimates.

The yellow car’s center in the high-camera image may be near pixel (351, 168), but its resting orientation is uncertain. The right-wrist view suggests it is upright on its wheels, while the high-camera view may show its yellow roof at (351, 163) with the front bumper pointing down. The shape is only about 20 by 30 pixels there; could it have landed nose-down or tilted onto its rear? A crop could help. Container placement has no orientation requirement, and I can grasp the roof or body. At release, the right link6 was at (0.071, −0.058, 1.042) m, tilted about environment X by an uncertain angle. Using an estimated object-center offset of 0.14 m, I wondered whether the car’s center before release had X = 0.071 m and Y = 0.058 m. If it fell straight onto the basket floor at Z = 0.76 m, I estimate its final XY center around (0.071, 0.04) m. The high-camera back-projections at Z = 0.8 m give XY = (0.074, 0.081) m for pixel (351, 168), or (0.072, 0.044) m for (351, 180). My working estimate is therefore approximately (0.072, 0.06) m. The red pepper’s left-wrist center near pixel (320, 180), evaluated at Z = 0.8 m, suggests X = −0.041 m and Y ≈ 0.06 m. Thus, I estimate the pepper and car centers at approximately (−0.04, 0.06) m and (0.07, 0.06) m, separated by 0.11 m inside the blue basket. Could the left arm use a top-down grasp with link6 at X = 0.07 m, Y = 0.06 m, and Z = 0.94 m? The estimated basket floor is at Z = 0.76 m and its rim at 0.85 m, so the fingers must enter the basket to grasp the car around Z = 0.80 m. A top-down link6 height of 0.95 m would put the fingertips at 0.792 m, but reaching that XY position may be difficult, as before. A 45-degree forward tilt may provide a better approach. At link6 position (0.07, −0.05, 0.98) m, I estimate the finger contact center at (0.07, 0.063, 0.867) m, which is too high. Lowering link6 to Z = 0.91 m would bring the contact height to approximately 0.797 m. I initially considered the target (0.07, −0.05, 0.91) m and questioned whether the finger center’s Y coordinate would be +0.013 m. Using the tilted local +X direction [0, 0.707, −0.707] and an estimated contact distance of 0.16 m gives offsets of +0.113 m in Y and −0.113 m in Z. To contact a car center at Y = 0.06 m and Z = 0.80 m, the corresponding link6 target is (0.07, −0.053, 0.913) m. From the current left link6 position (−0.041, −0.105, 0.99) m, I estimate that target distance as 0.146 m. The lower height, position farther back in Y, and tilted posture may make it reachable despite the positive X target. I also need to check the sweep over the front rim. With link6 at Y = −0.053 m and Z = 0.913 m, the fingers extend to approximately Y = +0.06 m and Z = 0.80 m inside the basket. I estimate the finger shaft would cross the front rim at Y = −0.02 m and Z = 0.87 m, just above the estimated 0.85 m rim. The open gripper closes along environment X, and the car’s width in X may be about 0.07 m. Its long-axis direction after landing is uncertain: the right-wrist view shows the front at the bottom and roof at the top, perhaps indicating a long axis along environment Y. If so, closing along X would grip across its width. The left gripper’s 45-degree forward tilt keeps local Y along environment −X, which seems suitable. I will approach above the car first, considering link6 at (0.07, −0.06, 0.97) m. This gives an estimated finger center at Y = +0.053 m and Z = 0.857 m, above the estimated roof height of 0.82 m but within the basket, before lowering toward Z = 0.915 m. Since the left gripper is already open and tilted 45 degrees, a first waypoint at (0.05, −0.07, 0.97) m seems reasonable. Its displacement is approximately [+0.091, +0.035, −0.02] m, with an estimated distance of 0.099 m. Meanwhile, the right arm can move clear of the left arm and begin aligning for a widthwise grasp of the red race car. Its current orientation combines tilt and yaw. The zero-yaw top-down quaternion [0.5, −0.5, 0.5, 0.5] in wxyz order might serve as an intermediate, but I need to check its orientation distance from the measured pose. I will calculate the whole-orientation distances to the candidate poses before choosing the next rotation.

The right arm’s current orientation is about 1.02 rad from the zero-yaw top-down pose, slightly beyond the 1.0 rad command limit. I could interpolate 70% of the way toward that pose, giving an orientation change of about 0.71 rad, and calculate the intermediate quaternion. Another option is to return to the −45-degree-yawed top-down pose, which is 0.665 rad away, then rotate 0.785 rad to zero yaw and another 0.785 rad to +45-degree yaw. That would take more stages but seems safe. For that alternative, I could target the right link6 at (0.16, −0.16, 1.0) m from its current position of (0.071, −0.058, 1.042) m, an estimated distance of 0.136 m, while returning to the −45-degree-yawed top-down orientation. This would move it toward the red race car and clear the basket while the left arm approaches the yellow car. With the race car estimated at X = 0.15 m and Y = −0.216 m, I could instead use the right-arm waypoint (0.17, −0.18, 1.0) m. Rotating from −45-degree yaw to +45-degree yaw afterward would require an intermediate orientation because the full change is 1.571 rad. A shorter sequence would interpolate directly from the current measured orientation toward the +45-degree-yawed top-down pose while moving toward (0.17, −0.18, 1.0) m. I considered an intermediate change of about 0.9 rad: a Slerp fraction of 0.55 would give about 0.924 rad, followed by the final orientation. The open fingers may swing during this rotation, but with no object held and the gripper above the table, the path appears safe. I’ll use SciPy to calculate the midpoint quaternion with a Slerp fraction of 0.5, giving an orientation change of about 0.84 rad.

I’ll target the right link6 at (0.17, −0.18, 1.0) m with the calculated midpoint quaternion and its gripper open. I estimate the target distance as 0.17 m, within the command limit. I initially considered simultaneously moving the open left gripper to (0.05, −0.07, 0.97) m with its current tilt, using 8 steps; the left arm might reach its target while the right arm moves only partway. However, those simultaneous motions could cause a collision. The right fingers are currently tilted forward over the car, with link6 at (0.071, −0.058, 1.042) m. The left link6 is at (−0.041, −0.105, 0.99) m, with its fingers extending into the blue basket. Moving the left link6 to (0.05, −0.07, 0.97) m would bring it approximately 0.074 m from the right arm’s current link6 position. Although the right arm would be moving away, the arms or grippers could collide while crossing this shared space. I’ll first reposition the right arm for 8 control steps while holding the left arm at its current pose with its gripper open. The left arm can approach after the right arm clears the area.

The right arm moved only 0.038 m in X and 0.043 m in the negative Y direction, reaching only partway toward its target because of the rotation. It is still near the left wrist. I’ll continue toward the same right-arm target with the midpoint quaternion for another 8 control steps, while holding the left arm in place.

The right-wrist view now shows the race car at the bottom right and a green pepper at the bottom left. The right arm has not fully reached its intermediate orientation. I initially considered continuing toward (0.17, −0.18, 1.0) m with the midpoint quaternion for 3 steps, then targeting the final +45-degree-yawed top-down orientation. The left arm can now approach the yellow car while the right arm finishes its intermediate motion. The right link6 is at X = 0.151 m and Y = −0.154 m, about 0.13 m from the proposed left approach position at X = 0.05 m and Y = −0.07 m. The fingers may avoid contact: in the high-camera view, the open right fingers appear around image x = 370–450 and y = 180, while the left gripper is around (300, 150). That appears to provide enough clearance. I considered targeting the right arm directly at (0.15, −0.216, 0.98) m with the final +45-degree-yawed top-down orientation. The orientation change might be about 0.9 rad, but my estimate of 0.2 rad remaining to the midpoint plus 0.84 rad from the midpoint to the final orientation gives 1.04 rad, potentially exceeding the 1.0 rad limit. It is better to finish the midpoint target at (0.17, −0.18, 1.0) m and attempt the final orientation next. I’ll move the open left gripper toward (0.05, −0.07, 0.97) m with its 45-degree forward tilt while the open right gripper finishes its intermediate approach pose. The left approach appears safe. I’ll use 5 control steps.

In the left-wrist image, the yellow car is around pixel (400, 270), and the red pepper is around (210, 200). I need to center the left gripper over the car. The measured left link6 X coordinate is 0.004 m, and the target is 0.05 m, so the planned +0.046 m X adjustment should center the car, which appears about 80 pixels right of the image center. With the left gripper tilted forward 45 degrees, image X corresponds to environment X. The car’s image Y coordinate is around 260, near the image center at 240. I estimate its centroid at (403, 263), though perhaps the roof’s body center at (417, 228) would be a better contact target. I should grasp across the body, including the roof, rather than the front bumper; its geometric center appears around (400, 265). The car’s long axis runs diagonally from the front at bottom-left to the rear at top-right. Closing horizontally along environment X may not be exactly perpendicular to that axis. The right gripper’s −45-degree yaw worked for the car’s original orientation, but the car rotated after landing in the basket. Its projected horizontal width is about 180 pixels, and its vertical or diagonal length is about 190 pixels. Its long axis appears roughly 45 degrees from horizontal, so horizontal closure might still grip the tires or body adequately. I could improve alignment by rotating about local X, the finger-extension axis, to change the closing direction in the plane perpendicular to the fingers. However, that would also change the camera view and possibly the arm’s joint configuration. I lean toward retaining the current 45-degree forward tilt and closing direction because the car has a compact, roughly square body. I need to avoid the red pepper. Its center is at image X = 210, compared with the car at X = 400, a separation of 190 pixels—perhaps about 0.06 m? The open fingers appear around image X = 0–130 on the left and beyond 550 on the right; more specifically, the left finger is around 0–125 and the right begins around 545. Shifting right by 0.046 m, roughly 100 pixels, could bring the left finger near the pepper at X = 210 when I lower it. The estimated gripper opening width is 0.1 m, and the estimated pepper-to-car center distance is 0.11 m, so I should be cautious about contact. I considered approaching from the right with a narrower opening, perhaps 0.08 m rather than 0.1 m, while still fitting the car’s estimated 0.07 m width. However, the current opening command is 1.0, and the interface accepts only a boolean open or close target. Closing fully and reopening would provide only transient intermediate openings through interpolation, not a stable partial-opening target. For example, one opening step from closed might give a command near 0.25, while one closing step from open might give about 0.75. Commanding open afterward would reopen it rather than hold that intermediate value. I therefore cannot rely on holding a narrower opening this way. I also considered moving the pepper farther left, but it is already on the basket’s left side. The left finger might push it while straddling the car, and it would likely remain in the basket, but I should avoid unintended contact. My more detailed clearance estimate suggests the finger can fit between them: the car has an estimated width of 0.07 m and center X = 0.07 m, giving its left edge at X = 0.035 m. The pepper’s center is at X = −0.04 m with radius 0.035 m, giving its right edge at X = −0.005 m. That leaves a 0.04 m gap, enough for an estimated 0.015 m finger thickness. Using the car center of 0.07 m, half the open gap of 0.05 m, and a thickness allowance of 0.01 m places the left finger at X = 0.01 m, between those object edges. This seems workable. For the right arm, I will finish the +45-degree-yawed top-down alignment above the race car. Its current link6 position is (0.17, −0.18, 1.0) m, and the race car’s estimated center is (0.15, −0.216, 0.78) m. I will target right link6 at (0.15, −0.216, 0.97) m. The orientation change from the midpoint to the final pose is about 0.84 rad, within the 1.0 rad limit, and I estimate the position distance as 0.06 m. The left target remains (0.05, −0.07, 0.97) m with its current tilt. I’ll keep both grippers open and use 8 control steps to complete the right rotation. I expect the left arm to reach its target in 2 steps and then hold there.

The yellow car’s center in the left-wrist image is around pixel (290, 315), compared with the image center at (320, 240), so it is 75 pixels below the image center. With the EEF Y target at −0.07 m, I estimate the finger contact center at Y ≈ +0.04 m, but the camera’s image center maps differently. Should I adjust the gripper forward or backward in Y? With the left gripper tilted 45 degrees, is the camera’s optical axis roughly forward, and where does its image-center ray fall relative to the EEF’s environment-frame X and Y coordinates? I should use the current camera calibration to estimate the car’s position and determine the required EEF placement. In observation 148, the left link6 is at (0.049, −0.071, 0.97) m with the tilted orientation. I’ll back-project a possible grasp-center pixel at (290, 310), assuming Z = 0.80 m, to estimate its environment-frame position. The race car’s centroid in the right-wrist image is around (345, 275), with an assumed Z = 0.78 m. The right gripper has not reached its final orientation, so completing that rotation will change the view. I’ll calculate the left car’s position and also evaluate the right race car’s centroid.

The wrist back-projection suggests that the yellow car’s grasp center is approximately (0.038, 0.038, 0.80) m, though that remains an estimate. The current left link6 position is (0.049, −0.071, 0.97) m. With the 45-degree tilt and an estimated contact distance of 0.16 m, I estimate the fingertip or contact center at (0.049, 0.042, 0.857) m. Its X and Y coordinates are close, but its Z coordinate is about 0.057 m too high. For the desired grasp center at (0.038, 0.038, 0.8) m, the estimated 0.113 m offset from the tilted fingers suggests a link6 position of (0.038, −0.075, 0.913) m. I considered lowering to Z = 0.913 m while keeping X around 0.04 m and Y = −0.075 m. I’ll use the left target (0.039, −0.075, 0.915) m with the gripper open. This plans a −0.004 m Y adjustment, a −0.01 m X adjustment, and a 0.055 m descent into the basket. The fingers are currently estimated at Z = 0.857 m, above the car’s roof, which may be around Z = 0.82 m. The right arm has not reached its final orientation: the current quaternion’s w component is about 0.383, compared with the target’s 0.270. I need to finish that rotation and lower toward the race car. The wrist back-projection estimates the race car’s center at (0.15, −0.21, 0.78) m, while the current right link6 position is (0.149, −0.217, 0.97) m. In the final top-down orientation with +45-degree yaw, local +X points downward, so link6’s XY coordinates should match the car center at (0.15, −0.21) m. The current Y coordinate of −0.217 m is already close. What link6 height should I use for the race-car grasp? I estimate the car’s height at 0.04 m and its center height at 0.775 m. A link6 height of 0.94 m would put the fingertips around 0.782 m; a deeper height of 0.925 m would put them around 0.767 m. The fingers need to contact the narrow body between the wheels while avoiding the wheels and wing. The car’s long axis currently appears vertical in the right-wrist image, with the fingers on its left and right, which looks suitable for gripping across its width. Will the final rotation make that axis appear diagonal or horizontal? That remains uncertain. I’ll aim at the cockpit or body center around pixel (345, 275). I’ll target the right link6 at (0.15, −0.21, 0.935) m with the final quaternion and its gripper open, planning a 0.035 m descent while finishing the rotation. I initially considered 5 steps before inspecting, but both grippers are near objects, so I’ll use 3 steps first. The left arm may actually descend about 0.04 m and the right may rotate about 0.3 rad during those steps; I can inspect before continuing.

The yellow car remains centered near pixel (290, 300) in the left-wrist view, with fingers on either side and the left finger near the pepper. At the measured left link6 height of Z = 0.939 m, the pads may be near the car’s top. I’ll continue toward Z = 0.915 m for another 2 control steps. The right gripper has not yet reached its final orientation; I estimate about 0.13 rad remains. The race car’s long axis appears vertical in the wrist view. The measured right link6 height is Z = 0.944 m, and its target is Z = 0.935 m. I’ll advance both open grippers for 2 steps to complete these short approach increments before closure.

The left link6 height stayed at Z = 0.929 m despite the target of 0.915 m passing the precheck. Its orientation changed slightly, including the tilt of local +X, but there was no vertical motion during the 2 steps. Could the fingers be contacting the basket floor or the car and preventing further descent? Contact with the basket rim, a joint limit, or a stalled local IK solve might also explain it, although the precheck passed. I estimate the current orientation differs from the target by about 0.02 rad. The left finger is near the red pepper and may be touching it; the left gripper is still open. I should not force the left arm lower. The fingers seem to surround the yellow car, so I’ll close at the current link6 height of Z = 0.929 m and then test-lift it. The right gripper’s closure is still in progress, with an opening command of 0.489. I’ll hold both wrists at their current positions and command both grippers closed for 2 more control steps, allowing the right grasp to settle while the left closes.

The finger pads contact both car bodies. The yellow car shifted slightly but remains held between the left pads, and the race car’s cockpit is centered in the right gripper. The reported opening commands are 0.23 on the right and 0.489 on the left; I tentatively estimate the race car’s narrow body width as 0.025. I could make a 2-step test lift immediately, since the cars appear held even though closure is still interpolating. I prefer to hold both wrists stationary with the grippers commanded closed for 2 more steps to let the grasps settle, then make 2-step test lifts. There are 943 control steps remaining. I’ll perform the closure hold now.

The left gripper’s opening command decreased from 0.489 to 0.195, suggesting that the yellow car may be rotating or slipping as the fingers close. The right opening command is stable at 0.225. I’ll test-lift both cars by approximately 0.035 m over 2 control steps, keeping the orientations steady and both grippers closed. The left gripper will retain its 45-degree tilt as I target link6 Z = 0.965 m; the fingers should rise about 0.035 m, and the yellow car should move with them if it is held. I’ll target right link6 Z = 0.97 m.

Both gripper opening commands have reached 0.0. Could an object still be trapped between the fingers even with a zero command? The yellow car is visible between the left fingertips but may still be resting in the basket, and the red race car appears to remain on the table. In the high-camera view, the race car is still around image y = 294. Its apparent size in the right-wrist view may be slightly smaller, although its image length was roughly 400 pixels in observation 159 and looks similar in observation 161. That leaves some uncertainty about whether it moved with the gripper. The earlier secure pepper grasp stabilized at an opening command of 0.433, and the secure right-arm yellow-car grasp stabilized at 0.409. In comparison, reaching zero now suggests that both cars slipped out or that the fingers closed around empty space. The objects could remain visible between the closed fingertips without being held. The race car’s body may be only about 0.02 m wide; perhaps the pads met above it. Its opening command initially stopped near 0.23, then went to zero during the lift, which suggests slipping. I conclude that both test lifts failed. The yellow car remains in the blue basket and the race car remains on the table, so I should recover rather than transport either object. I need deeper grasps or different contact points. The contact height and orientation may be the problem. The fingertips may be pushing against the cars, moving them during closure, and then closing above their bodies rather than establishing opposing pad contact. The left descent stalled at link6 Z = 0.929 m; perhaps that was an IK or joint-limit issue rather than physical contact, and a different position or orientation could reach deeper. On the right, the previous link6 target was Z = 0.935 m, giving an estimated fingertip height of 0.777 m against an estimated object-center height of 0.775 m. That seems appropriate at the tips, but perhaps the fingers contacted the body around Z = 0.82 m instead. If the contact pads were near local X = 0.07 m, they would be around Z = 0.865 m, well above the tips, leaving only the tips to contact near the table. The fingers extend along local +X to approximately 0.1576 m. The pads may actually be nearer local X = 0.12 m rather than at the tips. At link6 Z = 0.935 m, that would put the pads at Z = 0.815 m, perhaps against the upper sides of a car whose roof is around Z = 0.80 m. Lowering link6 to Z = 0.90 m would put the pads near 0.78 m, but the tips would reach 0.742 m, slightly below the table at 0.75 m and risking contact. A link6 height of 0.91 m seems better: the tips would be at 0.752 m near the table, and the pads around 0.79 m. The previous 0.935 m target was about 2.5 cm too high under this estimate. The first successful yellow-car grasp used link6 Z = 0.923 m with a top-down orientation yawed −45 degrees and held through its test lift. The race car is lower than the yellow car, so it may need link6 Z = 0.905–0.915 m. I considered lowering the right arm to 0.908 m. For the yellow car in the basket, the floor is estimated at Z = 0.76 m, compared with the table at 0.75 m, and the car center is around 0.80 m. A link6 height of 0.928 m might therefore be analogous to the successful 0.923 m table grasp, but the left arm’s tilt changes the contact geometry. At a 45-degree tilt and link6 Z = 0.929 m, the fingertips are estimated at Z = 0.818 m, which is 0.018 m above the object center. I would need to lower toward 0.911 m, as planned, but the arm did not descend. Could the fingers have hit the basket floor? The estimated 0.058 m clearance between fingertips at 0.818 m and the floor at 0.76 m argues against that. The 0.915 m target passed the precheck, yet the measured height remained at 0.929 m; perhaps a slight orientation difference caused an IK stall near a joint limit. The cause remains uncertain. I could deepen the grasp by rotating the fingers toward vertical while keeping link6 at Z = 0.929 m. A fully top-down orientation would lower the tips to about 0.771 m. However, the 45-degree tilt currently supplies a +0.111 m Y offset, whereas top-down supplies no Y offset. The tips would move backward by 0.111 m, away from the car at Y = 0.04 m toward link6 Y = −0.074 m. Maintaining contact alignment would require moving link6 forward by about 0.11 m to Y = 0.036 m, which might exceed its reach. A smaller change to a 20-degree tilt may work. Its local +X direction would be approximately [0, 0.342, −0.94]. I considered moving link6 forward by 0.057 m while retaining Z = 0.929 m. The tips would then be at about Z = 0.781 m with a +0.054 m Y offset. To reach the car at Y = 0.04 m, link6 should be at Y = −0.014 m, about 0.06 m forward from −0.074 m. Earlier, the left arm’s top-down reach was limited around Y = −0.05 m and Z = 1.02 m, but the lower Z = 0.929 m may make Y = −0.014 m reachable. The proposed 20-degree-tilt quaternion is approximately [0.579, −0.406, 0.406, 0.579] in wxyz order. With link6 at (0.038, −0.014, 0.929) m, I estimate the fingertips at (0.038, 0.04, 0.781) m. Pads at local X = 0.12 m would have offsets of approximately +0.041 m in Y and −0.113 m in Z, placing them at Z = 0.816 m against the upper car body. This seems better than the current posture. I could try a 35-degree intermediate tilt if the precheck fails, but the change from 45 to 20 degrees is about 0.436 rad and the contemplated position adjustment is about 0.06 m, within the command limits. I will reopen both grippers and adjust slowly. The left target is (0.038, −0.014, 0.929) m with the 20-degree tilt. The right target is (0.15, −0.21, 0.91) m with its existing +45-degree-yawed top-down orientation. Lowering the right arm by 0.047 m could push the car if the fingers are still around it, so opening before descending would be preferable. In the combined action, the open command will begin reopening immediately, which seems acceptable. The left arm is now at Z = 0.956 m after the test lift; its target lowers it by 0.027 m and moves it forward about 0.06 m into the basket. That approach appears safe with open fingers. The right arm will descend from Z = 0.957 m to 0.91 m while the race car remains supported. I considered 3 control steps, but will use 4 for this reopening and repositioning action.

The left arm is still encountering a reach limit. Could I use the right arm to place the yellow car directly into the white basket, or adjust the left arm’s position while retaining its 45-degree tilt to reach lower? The earlier left link6 target at Z = 0.915 m passed the precheck, but the actual descent stalled. Another option is to move link6 farther back in Y and increase the forward tilt to 60 degrees, extending the fingers forward while lowering the wrist. At link6 Y = −0.1 m and Z = 0.90 m, this tilt would give local +X the environment-frame direction [0, 0.866, −0.5]. I estimate the fingertip offsets as +0.136 m in Y and −0.079 m in Z, placing the tip at Y = 0.036 m and Z = 0.821 m. To reach the estimated car-center height of Z = 0.8 m, link6 would need to be at about Z = 0.879 m. With link6 lower and farther back at Y = −0.1 m, this pose is likely easier to reach. For pads at an estimated distance of 0.12 m along local +X, the offsets would be +0.104 m in Y and −0.06 m in Z, giving a pad height of about 0.819 m. This would approach the car from the front with more horizontal fingers, which may work better. Applying Rx(60 degrees) to the top-down orientation leaves local Y along environment −X, so the fingers still close horizontally along environment X. Local +X would point forward and downward, 60 degrees from vertical, or 30 degrees below horizontal, which seems useful for reaching into the basket from the front. My proposed link6 target is (0.038, −0.10, 0.88) m, with an estimated fingertip position of (0.038, 0.036, 0.801) m, matching the estimated car center. This may be kinematically easier and provide deeper contact. From the current link6 position of (0.037, −0.075, 0.956) m, I estimate the target distance as 0.079 m. Changing the tilt from 45 to 60 degrees gives an orientation change of about 0.262 rad, within the command limit. I expect the precheck may pass. The fingers are currently closed near the car; opening them while moving back and down may avoid contact. I’ll calculate the quaternion for Rx(60 degrees) applied to the top-down orientation.

At a 60-degree forward tilt, will the left wrist camera be more horizontal? I expect it to show the yellow car’s front, which should help with the approach. I’ll target the left link6 at (0.038, −0.10, 0.88) m with the calculated 60-degree-tilt quaternion and its gripper open. I’ll also lower the right link6 to Z = 0.91 m with its gripper open, using 4 control steps for the combined action.

The left arm has only partly completed its rotation and descent, while the right arm has lowered by 0.034 m. In the left-wrist view, the yellow car’s center is now around image y = 320, with the red pepper to its left. The race car appears larger in the right-wrist view. I could continue toward the same targets for another 4 control steps. I’ll do that with both grippers open.

The right link6 remains at Z = 0.923 m rather than descending to the 0.91 m target. Perhaps contact with the table is preventing further motion, with the fingertips estimated at Z = 0.765 m and an open finger touching a car wheel or the table. Its measured position has shifted to X = 0.153 m and Y = −0.212 m, and its orientation is slightly off target. At the target height of 0.91 m, the 0.1576 m finger extent would put the tips around Z = 0.752 m, near the estimated table height of 0.75 m. There is still a 0.013 m descent remaining, but contact or friction may be stopping it. The current slight tilt could put one finger lower, perhaps at Z = 0.763 m. The right opening command is also only 0.891 rather than 1.0; could a car wheel be obstructing opening? Closing at the current link6 height of 0.923 m would be 0.012 m deeper than the previous grasp at 0.935 m, which may be enough. The left gripper is now tilted about 55 degrees, with the quaternion’s w component around 0.674, link6 Z = 0.928 m, and Y = −0.083 m. The yellow car’s image center appears near pixel (290, 350). Using the 0.1576 m finger extent at a 55-degree tilt, I estimate tip offsets of +0.129 m in Y and −0.090 m in Z, putting the fingertip at approximately (0.041, 0.046, 0.838) m. That is still 3.8 cm above the estimated car-center height of 0.80 m. The intended link6 height of 0.88 m with a 60-degree tilt would put the tip around Z = 0.801 m, but the measured descent has stopped at 0.928 m. Could the left finger be contacting the red pepper? In observation 169, the black finger appears around image x = 0–130 and y = 270 or greater, while the red pepper spans approximately x = 0–150 and y = 170–310. They look very close, and the finger may overlap the pepper’s right edge or touch its stem, preventing motion. Another possibility is contact with the basket’s front rim: a pad edge on the tilted finger could be catching the blue front wall during descent. The finger currently appears near the front edges of both the car and the pepper. Perhaps I should shift the left gripper slightly right, away from the pepper, and improve its alignment with the car before descending farther. I could estimate the car’s environment-frame center from wrist pixel (295, 350), assuming Z = 0.8 m and the current 55-degree tilt, then compare it with the fingertip position. The unchanged car location in the high-camera view may also help. The desired contact point might instead be near pixel (300, 330), so that remains uncertain. For now, I’ll back-project the candidate car-center pixel (290, 345) at Z = 0.8 m using observation 169’s calibration, and derive the current local +X direction and fingertip position in the environment frame.

The left fingertip is at approximately Z = 0.838 m, above the yellow car’s estimated center at Z = 0.8 m, so it is still too high. If the pads extend farther back along the fingers, contact at a distance of 0.12 m along local +X would be at approximately Z = 0.866 m, even higher. I should lower the whole gripper by about 0.04 m. The link6 target height is Z = 0.88 m, but the measured height has stalled at Z = 0.928 m. Could this be a joint limit rather than a collision? The left arm’s joint 3 may be near its limit. I’ll inspect the recorded joint states.

The left arm’s joint 2 is around 2.294 rad and is not increasing, while joint 3 is decreasing and joint 4 is around −0.26 rad. At the target 60-degree tilt, joint 4 might be around −0.1 rad. Could joint 5 be limiting the motion at approximately −0.617 rad? Perhaps its maximum absolute angle is about 0.62 rad. Joint 5 was near zero in the initial top-down posture, but tilting forward brought it to approximately −0.618 rad. The 60-degree orientation might require it to go beyond −0.7 rad, causing the stall. These are hypotheses, not established joint limits. I could try a different roll, tilt about another local axis, or mirror the top-down orientation with a 180-degree roll to use another wrist configuration. The 45-degree tilt about environment X changed both joints 4 and 5. Perhaps the basket layout favors each arm handling objects on its own side. Using the blue basket as a handoff surface was possible, but retrieving the yellow car with the left arm is proving difficult because of reach and orientation. I could reconsider having the right arm place the yellow car directly into the white basket with a changing orientation, or have it retrieve the car from the blue basket and place it on the front table for the left arm. The table transfer seems easier. One possible table location is X = −0.15 m, Y = −0.20 m, where the left arm could easily grasp from above. The right arm may not reach X = −0.15 m, though it should be able to place at X = 0 m, Y = −0.15 m. The left arm has reached approximately (0.04, −0.08, 0.93) m in a tilted posture, so a top-down pose at (0, −0.15, 0.93) m seems likely to be reachable. I’ll have the right arm retrieve the yellow car and set it on the front table at X = 0 m, Y = −0.15 m, then have the left arm pick it up and place it in the white basket. This adds actions but seems more robust than the basket handoff. The race car also belongs in the white basket. The right arm could place it on the front table at X = 0 m, Y = −0.2 m for the left arm to retrieve. I’ll stop the left arm’s basket pickup attempt and move it clear, then transfer the cars one at a time so they do not occupy the same handoff location. Since the right arm is already attempting to grasp the race car, I can transfer that car first while preparing to retrieve the yellow car afterward. The right gripper is currently open near the race car at approximately (0.15, −0.21, 0.923) m, and the left gripper is near the yellow car. I considered moving the left arm into clear space near (−0.15, −0.20, 1.0) m with either a top-down or tilted orientation while the right arm regrasps the race car more deeply. A possible right-arm handoff pose is (0, −0.18, 0.93) m. Its earlier reach failures occurred farther forward and higher, near (0.07, −0.058, 1.04) m, so the lower, more rearward pose at Y = −0.18 m should make X = 0 m easier to reach. The left arm could then pick up the race car at X = 0 m, Y = −0.18 m with a top-down link6 height of 0.92 m. After that pickup, the right arm could retrieve the yellow car and place it at another handoff location, X = 0 m, Y = −0.25 m. Direct placement into the white basket remains an alternative, but I still expect to need the left arm. For the left withdrawal, I also considered (−0.12, −0.20, 1.0) m with the top-down wxyz quaternion [0.5, −0.5, 0.5, 0.5]. Its current quaternion, approximately [0.674, −0.212, 0.211, 0.675], corresponds to a 55-degree tilt about environment X. I estimate the rotation to top-down as 0.96 rad, barely within the 1.0 rad limit, and the position distance as 0.183 m, within the 0.25 m limit. The combined pose might still fail the precheck, so an intermediate 30-degree tilt or a familiar 45-degree tilted waypoint at (−0.03, −0.16, 0.98) m could be preferable. The open left fingers need to clear the blue basket without hooking the car. For this action, I’ll move them backward along negative Y and upward to (−0.04, −0.18, 0.98) m with the 45-degree tilt. I estimate this distance as 0.11 m and consider the withdrawal clear. I can rotate and reposition farther afterward. Meanwhile, I’ll hold the right wrist at its current link6 height of 0.923 m and close on the race car to test the deeper approach. The arms appear far enough apart for these actions to proceed together. I considered 2 closure steps for the right arm while withdrawing the left over 4 steps; I’ll use 4 steps for the combined action.

At right link6 Z = 0.923 m, the gripper’s opening command is 0.303, compared with 0.225 during the previous grasp at Z = 0.935 m. Could this indicate wider contact from the deeper approach? It looks promising, but still needs a lift check. The left arm has only partly withdrawn, so I’ll continue toward its target at (−0.04, −0.18, 0.98) m with the gripper open. I considered letting the right grasp settle before lifting, but I can test-lift it while the left arm continues retreating. I’ll target right link6 Z = 0.95 m, a planned rise of 0.027 m, with its gripper closed. I considered 4 control steps, perhaps producing about 0.02 m of actual right-arm motion, but I’ll use 3 steps.

The race car looks the same size relative to the right wrist camera, and the opening command is stable at 0.299. In the high-camera view, it may be at image y = 293, compared with its original y = 290. The 0.026 m lift should perhaps move it upward in the image, though I am unsure of the expected displacement. Its rear wing appears at y = 293 rather than the previous y = 295, a slight upward shift. The stable wrist-camera appearance makes me think it is now held. I could lift farther to link6 Z = 1.0 m and begin the handoff transfer. The left arm still needs to retreat toward (−0.04, −0.18, 0.98) m and is about 0.06 m away. For the right arm, I initially considered raising link6 to Z = 0.99 m and moving toward a front-table handoff at X = 0.05 m, Y = −0.22 m, perhaps about 0.15 m away. From its measured pose of (0.153, −0.212, 0.949) m, I estimate the distance to (0.05, −0.22, 0.99) m as 0.116 m. Keeping the orientation unchanged, this lower, more rearward location should be reachable. However, the middle green pepper is near (0.035, −0.189) m in XY, so placing the race car there could cause a collision. I need a clear handoff location. My estimated front-table object positions in XY are the green pepper at (0.035, −0.19) m, the race car’s original location at (0.15, −0.21) m, the beige wooden toy at (0.307, −0.218) m, and the left green pepper at (−0.18, −0.098) m; the red pepper has been removed from the table. Clear alternatives appear to be (−0.05, −0.28) m or (−0.10, −0.25) m. The left arm’s initial area was around (−0.3, −0.35) m. A handoff at (−0.05, −0.28) m would be about 0.12 m from the green pepper and away from the race car’s original location. The right arm may reach it because it is farther back and lower, and the left arm should be able to grasp there easily. I estimate the distance from the current right pose to (−0.03, −0.28, 0.99) m as 0.198 m, within the 0.25 m command limit, but crossing left with the current +45-degree-yawed orientation might fail the precheck. I will first use the waypoint (0.06, −0.27, 0.99) m, about 0.117 m away, then move toward X = −0.05 m. A handoff at X = −0.06 m, Y = −0.28 m would be about 0.135 m from the green pepper. Even with the car’s estimated 0.14 m length extending toward the pepper, I estimate about 0.06 m of clearance. For the left arm, I will use a retreat target of (−0.12, −0.25, 1.0) m to clear the handoff area and prepare for pickup. From its measured pose of (0.001, −0.13, 0.956) m, with the 45-degree tilt, I estimate this distance as 0.176 m. Keeping that orientation may give a valid target. I will move the open left arm back while carrying the car with the closed right gripper toward (0.06, −0.27, 0.99) m. The paths diverge and appear safe, so I will use 8 control steps.

The race car is held by the right gripper. The green pepper appears at the top of the right-wrist image, near image y = 0; could it be very close to the handoff path? The right EEF is at approximately X = 0.067 m, Y = −0.267 m, and I estimate the car’s center at (0.067, −0.267, 0.83) m. The green pepper is near (0.035, −0.19) m in XY, behind the car by 0.077 m along +Y. The car’s rear wing extends about 0.07 m along +Y, so it could nearly touch the pepper. However, in the high-camera view, the pepper is at pixel (338, 277) and the car’s center is at (378, 321), roughly 60 pixels or an estimated 0.13 m apart. That appears acceptable. Moving to the handoff target at X = −0.06 m, Y = −0.28 m will carry the car leftward, away from the pepper. The left EEF is currently at (−0.058, −0.19, 0.978) m. Its forward-tilted fingers are approximately at Y = −0.077 m, Z = 0.865 m. Could they be near the green pepper at (0.035, −0.19) m in XY? Their X separation is about 0.09 m, which appears safe. I’ll continue moving the open left gripper toward (−0.12, −0.25, 1.0) m and the right gripper, still holding the car, toward (−0.06, −0.28, 0.99) m. I estimate the remaining target distances as 0.088 m for the left arm and 0.127 m for the right. The right-arm precheck may pass when crossing into negative X with the +45-degree-yawed orientation at this lower, front-table position. I’ll use 8 control steps.

The left quaternion unexpectedly deviated from the 45-degree tilt target to [0.626, −0.281, 0.26, 0.679] in wxyz order. Perhaps the precheck or IK behavior at the target position caused an orientation error of about 0.15; I am unsure. The left gripper remains open. The right link6 reached X = −0.016 m rather than the target X = −0.06 m, with Z = 1.001 m, so it may have reached a limit. The race car remains held. I can set the car down at the current handoff location, X = −0.016 m and Y = −0.284 m. That patch is already clear and seems reachable by the left arm. The left EEF is approximately at (−0.14, −0.229, 1.0) m, and I estimate the distance to the car’s horizontal location as about 0.14 m, so there is no need to move farther right. I initially considered lowering the right link6 to Z = 0.915 m. However, the original grasp had link6 at Z = 0.923 m with the car’s center on the table at approximately Z = 0.775 m, giving an estimated relative distance of 0.148 m. Returning link6 from Z = 1.001 m to around 0.923 m at the same XY position should bring the car back onto the table before release. I expect contact around link6 Z = 0.92 m. I considered a slow 4-step descent toward Z = 0.925 m. The left arm should approach above the car after the right gripper releases it. For now, I can reposition it to avoid a collision. The wrists look close in the high-camera view, with an estimated separation of 0.135 m, and the left fingers are tilted forward. Moving the left link6 back and left to (−0.18, −0.25, 1.0) m should provide space. Its current quaternion appears to include some roll. I initially estimate its rotation distance to the standard top-down pose as about 0.8 rad, perhaps within 0.75 rad; another rough estimate is 0.6 rad. I will use the top-down wxyz quaternion [0.5, −0.5, 0.5, 0.5] at that position, which is approximately 0.045 m away. This moves the open left gripper away and prepares it for pickup while the closed right gripper lowers the car. I will use 6 control steps for the combined action.

The race car appears to be on the table near pixel (320, 335) in the high-camera view, although I am unsure of its exact X position. I’ll release it with the right gripper, then retract that arm so the left arm can pick it up. I considered opening and making a small 0.02 m upward move after 1 step, but it is better to release at the current right link6 height of Z = 0.927 m, allow 3 opening steps, and lift or retract afterward. The left wrist still needs to finish its top-down alignment; the remaining orientation difference may be about 0.6 rad. I’ll hold its current position and continue toward the top-down quaternion while opening the right gripper, using 3 control steps.

I’ll retract the right arm upward and then to the right, toward (0.15, −0.2, 1.0) m, while preparing the left arm to pick up the race car. The open right fingers are still around the car, so I need to lift them vertically first to avoid hitting its wings. I’ll target right link6 at (−0.016, −0.284, 0.99) m, a planned rise of 0.063 m, with its orientation unchanged and gripper open. I considered moving the left link6 toward (−0.04, −0.284, 0.99) m in a top-down posture to approach from the left. The car’s center is at approximately (−0.016, −0.284) m in XY, and the left link6 should align with those coordinates for a top-down grasp. However, moving the left arm in while the right fingers are still around the car at link6 Z = 0.927 m could cause a collision. I’ll first lift the right arm while holding the left arm’s current position and continuing its top-down alignment. I’ll use 4 control steps with both grippers open, then retract the right arm farther before moving the left arm onto the handoff spot.

After 4 control steps, the right link6 reached Z = 0.974 m rather than the target of 0.99 m. I estimate its fingertips are at Z = 0.816 m, above the race car’s estimated top at Z = 0.80 m, so they appear clear. I’ll retract the open right gripper to (0.15, −0.15, 1.0) m. I estimate that target distance as 0.213 m, within the 0.25 m limit, and will retain its +45-degree-yawed orientation. I’ll move the open left gripper to (−0.016, −0.284, 0.98) m over the car while finishing its top-down alignment. I estimate the position distance as 0.165 m and the remaining orientation change from its current quaternion, approximately [0.533, −0.46, 0.453, 0.546] in wxyz order, as 0.3 rad. The target top-down quaternion is [0.5, −0.5, 0.5, 0.5]. These motions should be safe to execute together now that the right fingers have lifted clear. The left link6 will move from X = −0.176 m toward −0.016 m as the right link6 moves from X = −0.015 m toward +0.15 m, so their paths should remain separated along X. Neither arm holds an object. I’ll use 8 control steps.

The race car appears to the right and below the center of the left-wrist view, with its long axis running diagonally from top-left to bottom-right. The left gripper is currently in the zero-yaw top-down orientation and closes along environment X. I need to check the car’s long-axis direction after placement. It appeared vertical in the right-wrist view because that gripper had a +45-degree yaw, so its environment-frame long axis is likely still along [+X, −Y]. In the left top-down view, image X corresponds to environment X, while image Y roughly reflects −Y and Z. The car’s diagonal from pixel (410, 120) to (590, 280) therefore supports that interpretation: X increases and Y decreases. Closing along environment X would put the left closing direction at 45 degrees to the car’s long axis, which is not ideal. I’ll rotate the left gripper to the same +45-degree-yawed top-down orientation used by the right arm, so it closes perpendicular to the car’s length. The proposed wxyz quaternion is approximately [0.2706, −0.6533, 0.2706, 0.6533], a rotation of 0.785 rad from the current orientation. I’ll move the left link6 toward the pose above the car at (−0.016, −0.284, 0.98) m. Its measured position is (−0.079, −0.269, 0.985) m, so the planned X and Y adjustments are +0.063 m and −0.015 m, within the position limit. Meanwhile, the right arm will continue retracting toward (0.15, −0.15, 1.0) m. I’ll use 8 control steps to center and align the left gripper across the race car while the right arm clears the pickup space.

The race car appears centered around pixel (370, 200) in the left-wrist view, but the gripper has not reached its final orientation. I’ll finish the +45-degree yaw and lower link6 to Z = 0.923 m, the height used for the successful right-arm grasp. The measured left link6 position is (−0.035, −0.279, 0.981) m, and the car’s estimated XY center from the right-arm placement is (−0.016, −0.284) m. My left target is therefore (−0.016, −0.284, 0.923) m with the final quaternion. The planned Z change is −0.058 m and the X change is +0.019 m, within the position bound. I’ll use 5 control steps to continue the rotation and descent. The right arm could next retrieve the yellow car from the blue basket or work on the green peppers and wooden toys. It is currently at (0.15, −0.15, 1.0) m with a +45-degree-yawed top-down orientation and an open gripper. Nearby objects include the green pepper around (0.035, −0.19) m in XY, the beige wooden toy around (0.307, −0.218) m, and the rocking horse around (0.4, −0.06) m. I still need the right arm to handle the peppers and wooden toys. One option is to approach the central green pepper with a zero-yaw top-down orientation. Its estimated position is (0.035, −0.189, 0.78) m, and I would use link6 Z = 0.94 m for grasping. An approach target at (0.035, −0.189, 0.97) m is about 0.13 m from the current right pose, with a rotation of about 0.785 rad to zero yaw. The pepper is nearly symmetric, so its orientation is less important. Although that approach seems safe in isolation, it would bring the arms close together while the left grasps the race car: their X positions would be about −0.02 m and +0.035 m, a separation of roughly 0.05 m, with a Y difference of 0.095 m between the left target at −0.284 m and the pepper at −0.189 m. The diagonally oriented open grippers could collide. I would rather approach the beige wooden toy farther to the right while the left arm handles the race car. The beige toy appears to be a small dog or cat, with its body near high-camera pixel (480, 291). It is partially visible at the bottom right of the right-wrist view in observation 221, so moving closer should help me inspect it. It is likely a wooden toy resembling a dog, with four legs and a head, and an estimated size of about 0.08. Its irregular shape calls for a grasp across the body’s midsection, using zero yaw or another yaw chosen from its long axis. The head may point right and upward in the high-camera view; the initial view looked like a cat facing right, and the current wrist view may show its back or body with the head to the right. These interpretations remain tentative. I estimate the toy’s center at (0.307, −0.218, 0.78) m and would use link6 Z = 0.94 m for its grasp. Moving from the right arm’s current XY position to (0.307, −0.218) m is about 0.171 m, and rotating to zero-yaw top-down requires about 0.785 rad. That approach appears safe. For now, I’ll target the open right gripper at (0.307, −0.218, 0.98) m with zero-yaw top-down orientation while the open left gripper descends toward the race car. I’ll use 5 control steps for both arms; this lets them work concurrently while remaining far apart.

Both arms have moved only partway toward their targets because they are still rotating. The left quaternion’s w component is 0.382, and its orientation is intermediate; the race car still appears diagonal. The right quaternion’s w component is 0.375. It is partway from the +45-degree-yawed top-down orientation toward the zero-yaw top-down target. The left link6 is at Z = 0.946 m, with a target of 0.923 m. The right link6 is at X = 0.209 m, with a target of 0.307 m. I’ll continue toward the same targets with both grippers open. I initially considered another 5 control steps, but I’ll use 6.

The race car’s body appears vertical between the left fingers and centered at pixel (320, 240). The left link6 height is 0.924 m, similar to the height of the successful right-arm grasp. The wooden toy appears near pixel (360, 230) in the right-wrist view. It may be a wooden dog with four legs; its body looks long and vertical in the image, and its head may be at the bottom left. I should grasp across the torso, the main rounded rectangular shape near the upper center, rather than the head or legs. The zero-yaw top-down orientation closes along environment X, with the fingers appearing on the left and right of the image. The body appears about 140 pixels wide and 210 pixels tall, so this closing direction looks suitable. The right link6 is at (0.287, −0.209, 0.983) m, compared with the previous target of (0.307, −0.218, 0.98) m. The toy is right of the image center, so I need a +0.02 m X correction and a −0.009 m Y correction. I considered a grasp height of 0.93 m. The toy may be about 0.04 m tall, with its center at Z = 0.775 m, similar to the race car; a top-down link6 height of 0.923 m might suit its body. I’ll use the target (0.307, −0.218, 0.925) m with the zero-yaw top-down orientation and keep the right gripper open. The left link6 remains at Z = 0.924 m. I estimate about 0.07 rad of rotation remains to its final orientation, with the quaternion’s w component at 0.306 compared with the target’s 0.270. That remaining difference seems negligible because the car is aligned, so I can close while finishing the orientation. I considered 2 steps for left closure and 3 for the right approach; I’ll use 3 steps for the combined action.

The left gripper’s opening command is 0.33 and appears stable, so the race-car grasp is likely good, though it still needs a lift check. After 3 steps, the right link6 is at Z = 0.952 m and still needs to descend toward Z = 0.925 m. The wooden toy’s body fills the right-wrist view and appears reasonably centered, around image X = 335–340. I am unsure whether the current link6 X = 0.298 m or the desired X = 0.307 m best matches the body’s actual center; its high-camera position remains around image X = 480. I considered letting the left grasp settle, but I can test-lift the race car while the right gripper continues descending. I’ll aim for left link6 Z = 0.95 m, a planned rise of 0.026 m, and right link6 Z = 0.925 m, using 3 control steps.

The left gripper is holding the race car securely after the test lift. The wooden toy’s large body is centered between the right fingers. I’ll close the right gripper, initially considering 2 steps, and then test-lift the toy before transporting it. The left link6 is currently at (−0.017, −0.283, 0.951) m with a top-down orientation yawed +45 degrees, and I estimate the held car’s center at Z = 0.80 m. The white basket’s estimated center is (−0.32, 0.08, 0.75) m. I need to raise the car enough to clear the rim. At link6 Z = 1.05 m, I estimate the car’s center at Z = 0.90 m and its bottom at Z = 0.86 m, which should provide clearance. I could use a forward tilt like the one used for the red pepper, but the +45-degree yaw complicates that approach. The white basket is closer to the left arm’s base than the middle basket, so reaching it should be easier. I’ll first lift and move the left link6 to (−0.12, −0.15, 1.06) m. I considered changing to the zero-yaw top-down orientation, but the car has no placement-orientation requirement, so I’ll retain the +45-degree yaw for grasp stability. I estimate this target is 0.199 m from the measured pose, within the 0.25 m command limit. It will likely pass the precheck; it may still be near a reach limit, but moving left toward the base should help. From that waypoint, the proposed pose above the white basket at (−0.32, 0.06, 1.05) m is an estimated 0.296 m away, exceeding the 0.25 m limit. I’ll therefore use another waypoint at (−0.23, −0.03, 1.06) m, followed by (−0.32, 0.06, 1.03) m. The basket itself is estimated at X = −0.32 m, Y = 0.08 m. The left arm can likely reach it, and I should wait until nearby before introducing any tilt. The held car’s long axis runs along environment +X and −Y, with an estimated swept length of 0.14 m. I need clearance from the left green pepper at approximately (−0.18, −0.098) m in XY. The first path ends at X = −0.12 m, but the car extends approximately ±0.07 m in both X and Y, so it could approach the pepper near a later waypoint. At link6 Z = 1.06 m, I estimate the car’s bottom at Z = 0.87 m, above the pepper’s estimated top at Z = 0.82 m. That should clear the pepper. The white basket’s estimated rim height is 0.85 m, and a car-bottom height of 0.86 m would just clear it. The right basket is nearby at approximately X = 0.33 m, Y = 0.08 m. The right arm can likely reach that red basket with a forward tilt, but I’ll plan that transfer after confirming the wooden toy’s grasp. The arms are far apart, so I can close the right gripper while lifting and transferring the race car with the left. I’ll use 5 control steps for this combined action, targeting the left waypoint at (−0.12, −0.15, 1.06) m.

The right gripper’s opening command is 0.345 after closing on the wooden toy, which looks promising. I’ll make a 0.03 m test lift with the right arm while the left arm continues carrying the race car toward the waypoint at (−0.12, −0.15, 1.06) m. I’ll use 5 control steps; the left arm may move about 0.06 m and the right arm may rise about 0.03 m during that action.

Both objects appear stably held. In the high-camera view, the wooden toy is now near pixel (497, 291), compared with its original position near (480, 291). Did it move upward in the image? Its image Y coordinate is still 291, but its X coordinate changed from 480 to 497 even though the right link6 X coordinate remains 0.307 m. This could be a projection effect from the lift: image U depends on depth, so raising an object at the same XY position can increase its apparent scale and move it toward larger U when its environment X coordinate is positive. This supports the conclusion that the toy is held. I’ll move the left link6 from (−0.102, −0.179, 1.035) m toward (−0.23, −0.03, 1.06) m, retaining the top-down orientation yawed +45 degrees. I estimate the target distance as 0.199 m. The precheck will probably pass because this waypoint moves toward the basket on the left side. The right link6 is currently at (0.307, −0.218, 0.958) m with the zero-yaw top-down orientation. Using an estimated relative offset of 0.15 m for the wooden toy’s center gives a center height of 0.808 m and a bottom height of about 0.77 m. Raising link6 to Z = 1.06 m should bring the toy’s bottom to about 0.87 m, clearing the red basket rim. I’ll first target (0.31, −0.08, 1.06) m, an estimated distance of 0.172 m. This higher waypoint might encounter a reach limit as before, but its X coordinate is near the base at 0.3 m, so it should be manageable. Afterward, I can move toward the pose over the red basket’s center at (0.33, 0.06, 1.04) m, about 0.14 m away. The rocking horse is near X = 0.4 m, Y = −0.06 m, behind and to the right of the planned path. With the held toy near X = 0.31 m, Y = −0.08 m and its bottom estimated at Z = 0.87 m, it should clear the horse’s estimated top at Z = 0.82 m. I’ll advance both arms for 8 control steps with both grippers closed.

The race car appears near the white basket’s front-right interior in the high-camera view, at pixel (213, 199). The basket spans image x = 125–256 and y = 140–211. The left link6 is at (−0.184, −0.09, 1.046) m, and I estimate the car’s center at the same XY coordinates and Z = 0.89 m. The white basket’s estimated center is X = −0.32 m, Y = 0.08 m, so the car needs to move about 0.17 m forward in Y and 0.136 m left in X. Its image position suggests it is still near the front rim rather than over the basket center. I could target left link6 at (−0.30, 0.05, 1.06) m, an estimated distance of 0.197 m, within the 0.25 m command limit. The basket is near the left base, but the forward reach at that height might still fail the precheck. A forward tilt could swing the car over the basket without forcing the wrist farther forward. Alternatively, a lower direct target at (−0.30, 0.04, 1.02) m might improve reach; I initially estimate the car’s bottom there at about Z = 0.83 m, near the rim, though tilting could help. I briefly consider whether the car’s bottom has a relative offset of about 0.19 m from link6. Using its original bottom height of 0.75 m at the grasp link6 height of 0.924 m instead gives a relative offset of −0.174 m. That puts its current bottom at Z = 0.872 m, above the estimated rim at 0.85 m. At link6 Z = 1.02 m, the bottom would be at 0.846 m, just at the rim. I’ll instead try the left target (−0.29, 0.03, 1.04) m, which I estimate is 0.175 m away and would keep the car’s bottom at 0.866 m. The right arm is still only partway toward (0.31, −0.08, 1.06) m, with its measured link6 at (0.308, −0.16, 1.0) m. I’ll continue toward that target while advancing the left arm, keeping both grippers closed and their orientations steady for 8 control steps.

The longer direct left-arm target failed the precheck again. I could use shorter increments or tilt the gripper. The earlier left waypoint at (−0.23, −0.03, 1.06) m passed its precheck but was only partially reached, so I’ll continue toward that waypoint rather than jump farther ahead. I’ll also keep the right arm’s previously valid target unchanged and use 8 control steps for both arms.

In the left wrist view, the white basket is behind and above the race car, the blue basket is to the right, and a green pepper is below on the table. Is the race car’s nose pointing toward the white basket? The white interior is at the top of the image and the car is below it near the center, so I need to move forward along environment +Y. The right wrist view shows the rocking horse at the upper right and the held wooden animal. Perhaps the red basket is behind them and outside the view because of the camera’s direction. In the high-camera view, the wooden animal is near pixel (502, 216), just in front of the red basket’s rim; the basket spans image X = 390–510 and Y = 140–212. I should move forward by about 0.08 m in Y. The right link6 target (0.31, −0.03, 1.04) m is approximately 0.082 m from its measured position of (0.309, −0.112, 1.035) m and will likely be feasible. For the left arm, I could try (−0.30, 0.04, 1.04) m from its measured position of (−0.226, −0.04, 1.055) m, an estimated distance of 0.14 m. The previous longer approach failed from farther away; might this one pass now? I’ll instead use the shorter waypoint (−0.27, 0.005, 1.04) m, an estimated distance of 0.063 m, which appears safe. The eventual white-basket center target remains approximately X = −0.32 m, Y = 0.08 m. I’ll advance incrementally for 5 control steps, keeping both objects held and retaining the current grasp orientations.

The high-camera view initially makes me think the rocking horse has moved or fallen onto its side. It was near pixel (502, 222) initially and now appears near (502, 225), or approximately (501, 226). In the right-wrist view, it is at the upper right, with the red basket rim above it and the held wooden animal near high-camera pixel (492, 192), over the basket’s front. The horse seems to be lying sideways with its red rocker visible, but this may simply be a side view rather than evidence that it fell. Initially, the wrist view showed it upright, with its white head on the right and red rocker below. Could the right arm have bumped it during transfer? I should check rather than assume that happened. The horse’s current high-camera position, approximately (503, 226), is still close to its initial position. In observation 264, it may have been obscured by the held animal: the animal was near (503, 213), with the horse perhaps underneath near (500, 227). In observation 269, the held animal is near (493, 190) and the horse near (503, 226). The horse therefore does not seem to have moved much and is likely fine; its apparent lying or rocking posture may be natural. I still need to avoid contact with it. The right-wrist view shows the horse very close to the held animal’s right side. I estimate the animal at X = 0.31 m and the horse at X = 0.4 m, giving a gap of about 0.09 m. Advancing the right arm toward Y = −0.03 m could bring the gripper or held animal close to the horse at Y = −0.06 m. The measured right link6 position is (0.31, −0.072, 1.035) m. I estimate the held animal’s center at (0.31, −0.072, 0.87) m and the horse’s center at (0.4, −0.06, 0.8) m. With estimated widths of 0.07 m for the animal and 0.08 m for the horse, their edges may nearly touch. Could they already be touching? The horse still appears to be on the table. I considered placing the animal at X = 0.28 m instead of 0.31 m and lifting slightly. I’ll shift it farther left to X = 0.27 m while advancing into the red basket, using the right link6 target (0.27, −0.02, 1.06) m. The planned changes are −0.04 m in X, +0.052 m in Y, and +0.025 m in Z, with an estimated total distance of 0.071 m. The red basket’s estimated inner X range is 0.20–0.45 m, with its center at X = 0.32 m, so X = 0.27 m should be safely inside. I can release once the high-camera view shows the animal inside. The race car appears over the white basket, though it may still be close to the front edge. The white basket fills the left-wrist background, and the green pepper directly below the car is on the table outside the basket. In the high-camera view, the car’s center is near pixel (186, 177), within the estimated white interior spanning image X = 140–240 and Y = 150–195. That looks promising. The measured left link6 position is (−0.265, −0.006, 1.038) m, and I estimate the car’s center at the same XY coordinates and Z ≈ 0.88 m. The basket’s center may be (−0.32, 0.06) m in XY, with its front edge at Y = −0.01 m, so the car’s center at Y = −0.006 m is still just at that edge. I considered moving forward about 0.06 m to Y = 0.055 m and left about 0.03 m to X = −0.295 m. I’ll use the left link6 target (−0.30, 0.055, 1.04) m, an estimated distance of 0.072 m, which may now pass the precheck. The car is about 0.15 m long and oriented along environment +X and −Y. Even if its nose or wing is already sufficiently inside, I should center it deeper before release. I’ll advance both arms for 5 control steps with both objects still held.

The left arm has encountered another reach limit, so I’ll tilt the held race car forward rather than force the wrist farther into the white basket. Its current orientation is top-down with a +45-degree yaw. I’ll calculate a new quaternion by applying a 45-degree rotation about environment X to that orientation: Rx(45 degrees) multiplied by the +45-degree-yawed top-down rotation. I estimate the car’s center about 0.15 m below link6. The forward tilt should swing it +0.106 m along Y and raise it by 0.045 m without moving link6. The left link6 is at (−0.265, −0.006, 1.038) m, and my current car-center estimate is (−0.265, −0.006, 0.878) m. After the tilt, I estimate the center at (−0.265, 0.100, 0.923) m, over the white basket’s interior. The car could contact the rim during the swing, although it rises as it moves forward. It would still be close to the right wall: the basket center is approximately X = −0.32 m, leaving a 0.055 m offset from the car center. With an estimated car length of 0.14 m and X width perhaps 0.1 m as it rotates, it could extend to X = −0.215 m, just inside the estimated inner right edge at X = −0.21 m. To improve that clearance, I’ll also shift link6 −0.03 m in X, targeting (−0.295, −0.006, 1.038) m. The planned orientation change is 0.785 rad and the position change is 0.03 m; this tilted posture may make the precheck easier, as it did for the red pepper placement. I’ll retain the right-arm target at (0.27, −0.02, 1.06) m and reissue it with the revised left target, since the failed combined precheck moved neither arm. I plan to use 8 control steps. First, I’ll calculate the left target quaternion.

The calculated left-gripper tilt quaternion is approximately [0.5, -0.5, 0, 0.7071] in wxyz order. This should rotate the race car forward and change the gripper’s closing-axis direction, while the grasp remains stable. I’ll keep the right arm’s planned target at (0.27, -0.02, 1.06) m unchanged and execute both motions for 8 control steps.

The left gripper has only partly completed its tilt, which I estimate at about 25 degrees. In the high-camera view, the race car is at pixel (181, 158). It may be over the white basket’s front-left area, and it appears to be within the interior. The wooden animal is at high-camera pixel (478, 173), over the red basket’s center-left area. The rocking horse remains stationary at (503, 225). Can I release the animal now? In the right-wrist view, the red basket rim runs across the upper image and the animal’s center appears below it, but perspective affects that appearance. The high-camera view places the animal inside the red interior, which spans approximately image X = 394–504 and Y = 140–210. It appears above the basket floor and clear of the walls, so I’ll release it. I considered 3 steps for the right release and perhaps 4 more to finish the left tilt. I’ll use 4 control steps for the combined action, holding both wrists at their current positions, keeping the left gripper closed while it reaches the target tilt quaternion, and opening the right gripper.

The wooden animal has been released, but its final location is still uncertain. In the high-camera view, it appears at pixel (451, 193), within the red basket’s projected rectangle. In the right-wrist view, however, the red rim is near the top and the animal is below it, with a brown surface behind its lower part. Could it be standing on the table in front of the basket, or resting on the front wall rather than inside? I need to account for perspective. The right link6 is at (0.279, −0.037, 1.051) m. The rim appears around image y = 150, while the animal spans approximately image y = 80–320. Back-projecting the animal’s high-camera position at an assumed center height of Z = 0.78 m suggests X ≈ 0.312 m and perhaps Y ≈ 0.026 m. The earlier back-projection of pixel (448, 185) at Z = 0.78 m gave Y = 0.046 m; at image y = 193, I estimate Y ≈ 0.023 m. If the basket’s front edge is around environment Y = 0 m, that would put the animal’s center inside. The wrist view remains ambiguous. I tentatively estimate the camera at Y = 0.016 m and Z = 0.967 m. With the zero-yaw top-down gripper orientation, the camera’s optical forward direction points toward environment −Y, so image top corresponds to +Y, farther into the basket, and image bottom corresponds to −Y, toward the front. Could the rim near image y = 150 be the back rim? The brown surface behind the animal might be the red basket floor, although it looks more like the front table. In the high-camera view, I estimate the red basket’s front wall at image y = 188–211, so an animal centered at y = 193 could be inside near that wall, in front of it, or resting on it. At an assumed object height of Z = 0.75 m, pixel (451, 193) might back-project to Y ≈ 0.041 m, or roughly 0.04 m, compared with the earlier value of Y = 0.056 m at image y = 190. The red basket’s front edge at image y = 210, evaluated at Z = 0.75 m, might correspond to Y = −0.006 m. I am still unsure whether the visible front wall is around image y = 200 and the interior bottom around y = 160. I can compare the baskets’ visible corners under assumed heights. All three baskets have visible front walls. In the initial high-camera view, the blue floor may span image y = 153–199, with the interior floor around y = 166 and the front-wall bottom around y = 209. A possible floor-center pixel is (320, 177); assuming a floor height of Z = 0.76 m gives an estimated center at environment Y = 0.09 m. The front-bottom pixel (320, 207), evaluated at Z = 0.75 m, gives an estimated Y = 0.009 m, while the back-bottom pixel (320, 154) gives Y = 0.176 m. That suggests a basket span of approximately Y = 0–0.18 m, centered at 0.09 m. A possible front-wall top at pixel (320, 190), assuming Z = 0.85 m, gives Y = −0.028 m. The different heights complicate the projected front-edge locations. For the animal at pixel (451, 193), assuming its center is at Z = 0.78 m gives approximately X = 0.312 m and Y = 0.02 m, just inside my estimated front-bottom edge near Y = 0.02 m. It may therefore be supported inside near the front wall. Perhaps the native task accepts an object if any part is in the basket, but I should not rely on that. I’ll withdraw the right wrist and inspect the unobstructed high-camera view to verify the placement. The race car is still held over the white basket. It may be near the front or right side, but the left-wrist view shows white floor beneath the entire car. The current quaternion’s w component is 0.388, compared with the target’s 0.5; I estimate about 0.2 rad of rotation remains. The car appears at high-camera pixel (183, 153), inside the white basket’s left edge. Its estimated center is X = −0.293 m, perhaps Y = 0.07 m, and Z = 0.94 m. I can release it now and let it drop and settle despite the incomplete tilt. I considered 3 steps for the left release and 5 for the right withdrawal. I’ll use 5 control steps for the combined action, keeping the left wrist position fixed while opening its gripper and continuing toward the tilt target. The open right gripper will move back and slightly right to (0.30, −0.15, 1.02) m from (0.279, −0.037, 1.051) m, an estimated distance of 0.116 m. The rocking horse is near (0.4, −0.06) m in XY, so this withdrawal appears clear of it.

The wooden animal has fallen forward out of the red basket onto the table. It is now near high-camera pixel (443, 242), and the right-wrist view shows it in front of the red rim. My release appears to have been over the front rim or outside the basket. Its landing X coordinate is still uncertain; perhaps it moved forward to Y = −0.09 m. Assuming Z = 0.78 m, another tentative estimate is X = 0.278 m and Y = −0.116 m. Did it move from approximately (0.279, −0.037) m to (0.278, −0.116) m in XY? I need to pick it up again and use a forward tilt to place it deeper into the red basket. I could recover it after the peppers, but I must keep track of it. The race car appears near high-camera pixel (198, 160), inside the white basket, and the left-wrist view confirms that it is supported there after release. I should retract the left arm and verify that the car remains stable. The wooden animal is in a clear table location where I can regrasp its torso. Its orientation is uncertain: the high-camera view suggests it is on its back or side, while the wrist view could show it standing or lying on its back with its feet up. Any supported orientation inside the basket is acceptable for this task. Before choosing the new grasp pose, I’ll estimate the animal’s environment-frame center using both cameras in observation 286. Its right-wrist center may be around pixel (260, 250), and its high-camera center is around (443, 242). The right link6 is at (0.284, −0.061, 1.047) m with the zero-yaw top-down orientation. Assuming Z = 0.78 m, I also tentatively estimate the animal’s XY position as (0.263, −0.127) m. I’ll calculate the back-projections from the high and wrist views to refine these uncertain estimates.

I estimate the wooden animal’s center at (0.26, −0.12, 0.78) m. The right link6 is currently at (0.284, −0.061, 1.047) m. I initially considered approaching at (0.26, −0.12, 0.95) m with the zero-yaw top-down orientation, then lowering to Z = 0.93 m for the grasp. The animal is in front of the red basket, and the approach appears unobstructed. The left arm can withdraw from the white basket and approach the green pepper near its front, estimated at XY = (−0.18, −0.098) m. That pepper belongs in the blue basket, and the left arm has already demonstrated a placement there using a forward tilt. The current left link6 position is (−0.293, 0.006, 1.044) m, with the partially tilted wxyz quaternion [0.435, −0.557, 0.087, 0.702]. I’ll target (−0.18, −0.098, 0.98) m with the top-down quaternion [0.5, −0.5, 0.5, 0.5]. I tentatively estimate the orientation change as about 0.6 rad and the position distance as 0.168 m, within the command limits. I need to avoid hooking the released race car during withdrawal. The open left fingers currently extend forward and downward into the white basket near it. Moving backward toward Y = −0.098 m and rightward by 0.113 m should withdraw them away from the car. The target lowers link6 by 0.064 m, but at the Z = 0.98 m top-down approach, I estimate the fingertips at Z = 0.822 m, near the green pepper’s estimated top at Z = 0.82 m, with the fingers still open. The car is around Z = 0.8 m, the green pepper around Z = 0.78 m, and I tentatively estimate the fingers’ starting height in the tilted posture as about Z = 0.94 m. The path appears safe. For this action, I’ll use the right-arm approach target (0.26, −0.12, 0.96) m with the same top-down quaternion, an estimated distance of 0.11 m from its measured pose. I’ll keep both grippers open and use 8 control steps to approach the green pepper and wooden animal concurrently; the arms remain far apart.

The left wrist has not yet reached the zero-yaw top-down orientation. Its rotation path looks unusual: the current wxyz quaternion is [0.49, −0.534, 0.363, 0.586], compared with the target [0.5, −0.5, 0.5, 0.5]. I estimate about 0.25 rad of rotation remains. The green pepper is visible below it at pixel (345, 390), and the view will change as the wrist finishes rotating. The wooden animal appears to be lying on its back, centered near pixel (285, 250) in the right-wrist view. I’ll aim to grasp its torso around pixel (280, 250). The right link6 is currently at (0.271, −0.089, 1.004) m and has not reached the previous approach target of (0.26, −0.12, 0.96) m. I’ll finish that approach and lower its target height to Z = 0.93 m. I’ll retain the left target at (−0.18, −0.098, 0.98) m with the zero-yaw top-down quaternion, keep both grippers open, and use 5 control steps.

The green pepper appears at pixel (355, 250) in the left-wrist view, 35 pixels right of center. With the wrist in the zero-yaw top-down orientation, that suggests a positive X correction of about 0.01 m for the left link6. Its current X coordinate is −0.18 m, so the pepper’s center may be around X = −0.17 m, compared with the initial high-camera estimate of (−0.179, −0.098) m in XY. My current estimate is approximately (−0.17, −0.10) m. I’ll target the left link6 at (−0.168, −0.10, 0.94) m for the grasp. The red pepper was grasped at link6 Z = 0.942 m; this green pepper looks larger, with an estimated diameter of 0.08 m, and I’ll use Z = 0.94 m. The wooden animal appears at pixel (290, 270) in the right-wrist view, 30 pixels left of center. I estimate its environment-frame X coordinate at about 0.25 m, compared with the right link6’s current X = 0.264 m. I’ll target the right link6 at (0.253, −0.12, 0.926) m, correcting its current Y coordinate of −0.106 m toward −0.12 m. The belly around pixel (290, 270) looks suitable for a torso grasp. I’ll lower the right link6 by 0.036 m toward Z = 0.926 m and the left link6 by 0.04 m toward Z = 0.94 m, using 3 control steps to approach these targets.

Both the green pepper and the wooden animal are centered between the finger pads. I’ll close both grippers for 2 control steps, then let the grasps settle and check them with test lifts.

I could make a 2-step test lift now because contact appears established, but the left gripper’s opening command is still 0.487. The earlier successful right-arm wooden-animal grasp reached an opening command of 0.344 after 5 steps; the current right command is 0.489 after only 2 steps. I’ll hold both wrists stationary with the grippers commanded closed for 2 more steps to let the contacts settle, then make 2-step test lifts.

I’ll make a 0.03 m test lift with both arms over 2 control steps to check whether the green pepper and wooden animal move with their grippers.

Both objects appear stably held after the test lifts. I’ll place the left green pepper into the blue basket and put the wooden animal farther inside the red basket, using forward tilts to bring their centers over the interiors. The left link6 is currently at (−0.169, −0.101, 0.967) m. With an estimated pepper-center offset of 0.163 m, I estimate its center height at Z = 0.804 m. I can repeat the staging and tilt approach that worked for the red pepper: move near (−0.098, −0.053, 1.02) m, tilt forward 45 degrees, then shift X to −0.05 m before release. The earlier red-pepper path went from (−0.165, −0.195, 0.986) m through (−0.12, −0.08, 1.06) m and then (−0.1, −0.04, 1.02) m. This green pepper starts closer to the basket, at Y ≈ −0.1 m, so I probably do not need the intermediate waypoint at (−0.12, −0.08) m in XY. I considered a direct staging target at (−0.10, −0.05, 1.02) m, estimating the distance as 0.081 m and expecting the precheck to pass. At that pose, I estimate the pepper center at (−0.10, −0.05, 0.858) m, near the front rim, with its bottom at about Z = 0.82 m. A 45-degree forward tilt would swing its center forward and upward to approximately Y = +0.065 m and Z = 0.919 m, after which I could shift X to −0.05 m. I’ll use the previously achievable staging pose (−0.098, −0.053, 1.02) m instead. That top-down pose was near the left arm’s reach limit but was attainable. I estimate the current target distance as 0.104 m, so it is likely valid. The right link6 is at (0.255, −0.118, 0.955) m in the zero-yaw top-down orientation. I initially estimate the animal’s center height as Z = 0.775 m and wonder whether its center was at Z = 0.75 m when grasped at link6 Z = 0.932 m. Revising that estimate, its center while lying on the table was about Z = 0.77 m, giving an offset of 0.162 m from link6 and a center height after lifting of about Z = 0.793 m. I considered right staging poses at (0.30, −0.08, 1.02) m or (0.29, −0.09, 1.03) m, followed by a 45-degree tilt. My tentative center estimate after that swing is Y = +0.023 m and Z = 0.95 m, which may still be too close to the red basket’s front. With link6 at Y = −0.03 m, a 45-degree tilt would instead put the object at about Y = +0.083 m, farther inside. The previous failed release occurred with link6 at (0.279, −0.037, 1.051) m and the gripper still top-down. I had not tilted the right wrist, so the object remained directly below it at Y = −0.037 m, outside the basket front. That explains why it fell forward. I need to tilt before release or move link6 to Y = +0.08 m; direct forward reach may be limited, so I’ll use the tilt. I’ll stage the right link6 at (0.29, −0.04, 1.02) m, then apply a 45-degree rotation about environment X to the top-down orientation, giving approximately [0.653, −0.2706, 0.2706, 0.6533] in wxyz order. I estimate the animal’s center will swing from Y = −0.04 m, Z = 0.858 m to Y = +0.075 m, Z = 0.924 m, inside the red basket at X = 0.29 m. The rocking horse is near X = 0.4 m, Y = −0.07 m, so this forward swing should move the animal away from it. I estimate the right staging target is 0.104 m from its current pose. For now, I’ll move both arms to their staging poses for 8 control steps, retaining the top-down orientations and keeping both grippers closed.

Neither arm has reached its staging target yet. In the high-camera view, the green pepper is at pixel (254, 211), just in front of the blue basket’s left side, and the wooden animal is at pixel (461, 211), in front of the red basket. I’ll continue toward the same staging positions for another 5 control steps before tilting the objects inward.

I’ll tilt both grippers forward by 45 degrees, initially keeping their positions unchanged. Both will use the approximate wxyz quaternion [0.653, −0.2706, 0.2706, 0.6533]. The orientation change is 0.785 rad, within the command limit. The left link6 is currently at (−0.108, −0.063, 1.01) m. With an estimated pepper-center offset of 0.163 m, I estimate that the tilt would put its center at X = −0.108 m, Y = +0.052 m, and Z = 0.9 m, inside the blue basket but close to its left wall. I could shift it right as before, using the tilted target (−0.055, −0.063, 1.02) m, with planned changes of +0.053 m in X and +0.01 m in Z. The earlier tilted link6 pose at (−0.055, −0.047, 1.025) m successfully placed the red pepper inside. The current Y coordinate of −0.063 m would give an estimated pepper-center Y of +0.052 m after tilting, compared with +0.067 m previously, which still seems inside. I’ll instead use the left target (−0.055, −0.05, 1.025) m with the tilted quaternion. Its planned position changes are +0.053 m in X, +0.013 m in Y, and +0.015 m in Z, with the same 0.785 rad orientation change. This should be reachable and, by my estimate, place the pepper center at (−0.055, 0.065, 0.93) m. For the right arm, I’ll use the tilted target (0.29, −0.048, 1.013) m. I estimate the wooden animal’s center afterward at (0.29, +0.067, 0.94) m, inside the red basket, so it needs no additional sideways shift. I’ll keep both grippers closed and execute 8 control steps.

Both wrist views now show the held objects over the basket interiors, with floor clearly beneath them. In the high-camera view, the green pepper is at pixel (296, 157) inside the blue basket, with the red pepper below it at (304, 174) and the yellow car at (334, 174). The green pepper might drop onto the red pepper, which is acceptable for placement in a container. The wooden animal is at pixel (465, 171) inside the red basket. I initially considered finishing the tilt a little more before releasing, but the current views look suitable for release now. I’ll open both grippers for 3 control steps while keeping their positions unchanged, then retract and verify the placements.

The green pepper is now supported in the blue basket, and the wooden animal is supported in the red basket. Three objects remain: the central green pepper on the table at image pixel (338, 277), the yellow car in the blue basket that still needs to go into the white basket, and the rocking horse on the table that belongs in the red basket. I also need to reset the arms afterward. There are 768 control steps remaining, which should be ample. I’ll transfer the yellow car through a front-table handoff, as I did with the race car. The right arm can retrieve it from the blue basket and set it on the table for the left arm to place into the white basket. Meanwhile, the left arm may be able to pick up the central green pepper at approximately (0.035, −0.19) m in XY using a top-down grasp. It previously picked up the race car at approximately (−0.017, −0.283) m in XY, so this front-table pepper position seems reachable. It can then place the pepper into the blue basket using the established forward-tilt approach. The intended sequence is to have the left arm pick up and place the green pepper while the right arm retrieves the yellow car and sets it at the handoff spot. Then the left arm can place the yellow car into the white basket while the right arm puts the rocking horse into the red basket, followed by the reset. This avoids the left arm’s difficulties grasping inside the blue basket. I need to stage the concurrent work carefully. The right gripper must enter the blue basket to retrieve the car, and the left arm will later approach that same basket with the pepper. I considered letting the left arm pick up the pepper while the right approaches the car, then having the right wait or retrieve the car after the pepper release. Another option is to retrieve the car first and move the right arm clear while the left arm picks up the pepper and holds it over the table. The left arm could then place the pepper after the right arm clears the basket. Picking both objects concurrently and then moving the car away as the pepper approaches might also work, since their Y positions differ, but their paths could cross near the center. Careful staging is preferable. Both grippers are currently open near the baskets. The measured left link6 position is (−0.053, −0.046, 1.028) m, and the right is at (0.29, −0.045, 1.016) m; both wrists are only partly tilted toward their previous targets. I should withdraw them from the baskets before the next approaches. For the left arm, I’ll target (0.035, −0.19, 0.98) m with the zero-yaw top-down quaternion [0.5, −0.5, 0.5, 0.5] in wxyz order. I estimate the position distance as 0.178 m. The orientation change may be around 0.5 rad, or about 0.6 rad if the current tilt is roughly 35 degrees, so it appears within the command limit. I estimate the yellow car’s center at (0.07, 0.05, 0.8) m. For the right arm, I considered a front approach with a 60-degree tilt or a top-down grasp. A top-down link6 pose at (0.07, 0.05, 0.93) m may be reachable from the right base at X = +0.3 m, although it could be near a reach limit. The lower Z may help. The right arm previously reached (0.071, −0.058, 1.042) m in a tilted posture to release the car. A direct top-down approach at (0.07, 0.04, 0.93) m from the current right pose has an uncertain estimated distance: perhaps 0.244 m, but the displacement components of approximately (−0.22, +0.085, −0.086) m suggest it is around 0.25 m, possibly 0.251 m and just beyond the limit. I would need an intermediate waypoint such as (0.15, −0.02, 0.98) m. Even then, changing from the current tilt to top-down while moving left and forward might fail the local kinematic precheck. An alternative is the same 45-degree forward-tilted approach that the left arm attempted, but using the right arm’s better reach into the blue basket. At right link6 position (0.07, −0.075, 0.929) m with that tilt, I estimate the finger contact center at (0.07, 0.038, 0.818) m. Perhaps the right arm can lower to Z = 0.915 m without the joint limitations that stopped the left arm. A backward and downward approach from the earlier release pose to approximately (0.071, −0.075, 0.915) m with the 45-degree tilt should be reachable. I estimate the fingertip height there as 0.804 m, close to the car-center height of 0.8 m. The left grasp slipped because it remained too high; the right arm may succeed with the deeper approach. The right wrist is already tilted roughly 35 degrees, so targeting the 45-degree tilt requires only a small rotation. I estimate the distance from its current pose to (0.07, −0.075, 0.915) m as 0.242 m, within the 0.25 m limit, but the precheck could still fail. I’ll use the waypoint (0.15, −0.06, 0.97) m first, then approach (0.07, −0.075, 0.915) m. The tilted gripper closes along environment X across the car’s body. I expect lowering to Z = 0.915 m to improve contact. For the immediate action, the left pepper approach at (0.035, −0.19, 0.98) m and the right waypoint at (0.15, −0.06, 0.97) m appear sufficiently separated. The left arm’s motion rightward and downward should withdraw its open fingers from the blue basket toward the table pepper. The right arm will move leftward and backward from the red basket toward the yellow car, with open, tilted fingers; decreasing its X coordinate should take it away from the rocking horse. I’ll execute these approaches for 8 control steps, using the top-down orientation for the left arm and the 45-degree forward tilt for the right.

The right gripper is still over the red basket and is moving slowly as it rotates; the remaining green pepper is below the left wrist. I’ll continue toward the same approach targets. The right wrist’s current quaternion has w and x components of approximately 0.631 and −0.317. I estimate about 0.1 rad remains to its 45-degree forward-tilted target, and about 0.095 m remains to the position target (0.15, −0.06, 0.97) m. The left wrist is also about 0.1 rad from its zero-yaw top-down orientation and about 0.09 m from its position target (0.035, −0.19, 0.98) m. I’ll keep both grippers open and continue for 6 control steps.

The remaining green pepper is centered at pixel (320, 250) in the left-wrist view, so I’ll lower the left link6 to Z = 0.94 m. The right gripper is currently over the border between the red and blue baskets, with the yellow car partially visible on the left of its wrist view. I’ll move the right link6 from (0.189, −0.054, 0.986) m to (0.07, −0.075, 0.95) m, retaining the 45-degree forward tilt. I estimate the target distance as 0.124 m, within the command limit. At that target, I estimate the right fingertip will be at Y = +0.038 m and Z = 0.839 m, still above the car’s estimated center height of Z = 0.8 m. I should avoid descending too far in one action, so I’ll approach at link6 Z = 0.95 m and inspect before lowering toward Z = 0.915 m. I’ll keep both grippers open and use 5 control steps for the left descent and right approach.

The yellow car appears on the left side of the right-wrist image, with its center around pixel (110, 300). I need to move the right link6 left from X = 0.112 m toward the existing target of X = 0.07 m, an approximate X adjustment of −0.04 m. Does it also need a positive Y adjustment? That remains uncertain. The previous target was (0.07, −0.075, 0.95) m, and the measured Y coordinate is −0.068 m, already close to that target. I could finish centering and lower directly from Z = 0.962 m to 0.915 m, with an estimated total movement of 0.057 m and the orientation unchanged. However, the car will not be centered until the X adjustment is complete. I’ll first approach at (0.07, −0.075, 0.93) m with the right gripper open, then inspect before descending farther. I initially considered 2 steps of left-gripper closure while the right arm approaches. I’ll use 4 control steps for the combined action, holding the left wrist at the green pepper’s grasp pose and commanding it closed while the right arm moves leftward and downward.

The right arm has not reached its target. Could the red basket be obstructing it? In the high-camera view, the right wrist is over the red basket’s front-left area, with the fingers straddling the gap between the red and blue baskets. The yellow car is near the blue basket’s right edge, so the planned front approach with a 45-degree tilt may be close to that wall. I estimate the car’s center at (0.07, 0.05, 0.8) m. The right link6 is at (0.105, −0.061, 0.953) m, and I estimate the tilted fingertip center at (0.105, 0.05, 0.842) m. It is therefore 0.035 m too far right in X. Reaching the target X = 0.07 m requires moving left, but the red basket wall may be blocking link6 at X = 0.105 m. Could the forearm also be contacting the basket? The precheck passed, but the slow actual motion may instead reflect a joint limit. I’ll continue toward the same right-arm target, (0.07, −0.075, 0.93) m, while concurrently test-lifting the green pepper with the left arm to link6 Z = 0.97 m. I’ll use 4 control steps.

The right arm has virtually stalled at link6 X = 0.105 m and Z = 0.951 m despite its target, suggesting contact with the basket rim or a joint limit. I should stop and replan; no objects appear to have moved. In the right-wrist view, the open fingers seem to straddle the red basket’s left wall. The right black finger appears near pixel (520, 330), or around (520, 350), while the red basket spans image X = 430–640. This looks like the right finger is pressing against the wall and preventing movement leftward and downward. With the right gripper tilted about 45 degrees and link6 at (0.105, −0.057, 0.951) m, I estimate its fingertips at Y = +0.054 m and Z = 0.84 m. The red wall’s top is estimated at Z = 0.85 m, so the finger is at wall height in the gap between the baskets. I need to withdraw upward and backward, then approach the yellow car from above rather than between the baskets. I initially considered lifting vertically to link6 Z = 1.05 m while keeping X unchanged, then moving left over the blue basket and descending with a top-down orientation. The left arm holds the pepper at link6 position (0.025, −0.186, 0.96) m. The right arm is at (0.105, −0.057, 0.951) m, with an estimated separation of 0.155 m. Although the left arm could begin transferring the pepper toward the blue basket, the right wrist is currently near the yellow car there, so I should hold the pepper back during recovery. I’ll move the left link6 to (0.02, −0.23, 1.0) m with its gripper closed and lift the open right gripper to (0.105, −0.057, 1.07) m, retaining its tilted orientation, for 6 control steps. I estimate this would bring the right fingertips to Z = 0.96 m, above the rims. After it clears, I can move the right link6 toward (0.07, 0.04, 1.05) m with the zero-yaw top-down orientation—perhaps a 0.785 rad orientation change and a position change of about 0.1 m—then lower to Z = 0.93 m over the yellow car while the left arm holds back.

The right link6 rose only 0.066 m to Z = 1.017 m. I estimate the fingertips are now at Z = 0.905 m, clear of the rim at Z = 0.85 m. The red wall is still visible in the wrist view, but the fingers may no longer be touching it. I could finish lifting to Z = 1.07 m with 4 more control steps, or move directly above the yellow car while rotating to a top-down orientation. I’ll choose the latter. The current wrist is tilted forward 45 degrees; changing to the zero-yaw top-down quaternion [0.5, −0.5, 0.5, 0.5] in wxyz order requires approximately 0.785 rad of rotation. The right link6 target is (0.07, 0.04, 1.04) m, with planned position changes of −0.036 m in X, +0.1 m in Y, and +0.023 m in Z. I estimate the whole position distance as 0.11 m, within the command limit. This will rotate the fingers from a forward tilt to vertical, with their sweep clear above the basket. I estimate the yellow car’s XY position as (0.07, 0.05) m. At the target pose, the fingertips should be at Z = 0.882 m, above its estimated roof height of Z = 0.82 m. After alignment, I can lower link6 toward Z = 0.93 m. I’ll use 8 control steps for the right-arm reorientation, keeping its gripper open. The left arm will hold the pepper at its current link6 position, (0.02, −0.23, 1.0) m, with its gripper closed.

The direct top-down pose over the yellow car failed the right-arm reach precheck, as I suspected. I need a different approach from above and toward the front or left, avoiding the red wall on the right. One possibility is a tilted link6 pose at approximately (0.1, −0.02, 1.0) m. The current right link6 is at (0.106, −0.06, 1.017) m with a 45-degree tilt. I estimate the fingertips at Y = +0.053 m and Z = 0.905 m, above the yellow car. Lowering link6 at the same X coordinate to Z = 0.92 m would put the tips at approximately Y = +0.053 m and Z = 0.808 m. However, link6 X = 0.106 m is 3.6 cm right of the estimated car center at X = 0.07 m. Could the open fingers still straddle the car with that offset? The gripper closes along environment X, and the car is offset by −0.036 m relative to link6. With an estimated open half-gap of 0.05 m, the fingers would be at X = 0.056 m and 0.156 m, while the car spans approximately X = 0.03–0.11 m. The left finger might therefore descend into the car rather than beside it, so I should not use that alignment. I could first shift link6 left to X = 0.08 m while retaining Z = 1.017 m above the walls, then lower at Y = −0.06 m toward Z = 0.92 m. The right finger would then be near X = 0.13 m, in the gap between the blue basket’s right edge at X = 0.13 m and the red basket’s left edge at X = 0.15 m. Could it still touch the red wall near Z = 0.8 m? Allowing an estimated finger thickness of 0.01 m puts its outer edge at X = 0.14 m, leaving 1 cm of clearance, which seems acceptable. At the current link6 X = 0.106 m, the right finger is near X = 0.156 m and collides with the red basket’s left wall. Shifting left to X = 0.07–0.08 m while high should help. I attribute the failed direct target to the +0.1 m Y move combined with rotation to the zero-yaw top-down orientation, rather than the X adjustment. I’ll retain the 45-degree tilt and target right link6 at (0.07, −0.06, 1.017) m, a planned X change of −0.036 m. This will likely pass the precheck. I’ll keep the right gripper open, hold the left arm with the pepper, and use 4 control steps. After that, I plan to lower the right link6 toward Z = 0.915 m.

The yellow car now appears centered around pixel (240, 340) in the right-wrist view, with the red pepper to its left near the left finger. That finger spans approximately image X = 0–130 at Y = 250 and below, while the red pepper is around X = 0–130, Y = 220. They may contact each other when I lower the gripper. The car’s image X coordinate is 240, compared with the image center at 320. Should I shift the EEF right? Looking back, when link6 X was 0.106 m, the car appeared at image X = 170; now that link6 X is 0.07 m, it appears at image X = 240. Moving the EEF left makes the car appear farther right, so centering it at image X = 320 may require moving link6 slightly farther left, perhaps to X ≈ 0.055 m. However, the finger contact center does not necessarily coincide with the image center because the wrist camera is tilted. What environment-frame X coordinate does the car’s image position imply? I’ll back-project it using an assumed Z = 0.8 m and the current right-camera calibration, and calculate the fingertip position to compare them.

The wrist back-projection places the yellow car’s center at approximately X = 0.033 m, Y = 0.039 m, rather than my earlier X estimate of 0.07 m. That earlier visual-centroid estimate was off. The right link6 is at X = 0.07 m, about 3.7 cm to the right of the car, so I should shift it left toward X = 0.033 m rather than 0.055 m. The fingertip’s Y coordinate of about 0.051 m is already close to the car’s estimated Y = 0.039 m. Lowering link6 to Z = 0.915 m would put the tip at approximately Z = 0.803 m, which looks suitable. My eventual right-arm grasp target is therefore (0.034, −0.07, 0.915) m, retaining the 45-degree forward tilt and keeping the gripper open during approach. This plans a 0.036 m move left, a −0.01 m Y adjustment backward, and a 0.102 m descent, which may require several actions. There is a risk of the right gripper’s left finger contacting the red pepper. I estimate the car center at X = 0.034 m and the red pepper center at X = −0.04 m, a gap of 0.074 m. With an estimated open half-gap of 0.05 m plus finger thickness, one estimate puts the left finger at X = −0.026 m, near the pepper’s estimated right edge at X = −0.005 m. Another estimate puts that finger at X = −0.016 m and the pepper’s right edge around X = −0.01 m, still allowing possible slight contact. In the current wrist view, the finger spans image X = 0–130 and may already overlap or touch the pepper, although the pepper has not moved. Should I remove the red pepper first? It is correctly placed in the blue basket. A nudge might leave it contained, but I should avoid unintended contact. I could change the closing direction to reduce this risk. A 90-degree yaw while maintaining the forward tilt would change closure from environment X to environment Y, keeping the fingers from extending toward the pepper on the left. The yellow car’s long axis after landing appears diagonal from top-right to bottom-left in the wrist image. With this camera orientation, image X corresponds to environment X and image Y mixes −Y and Z. The image-axis signs of positive X and negative Y suggest a long axis along positive environment X and Y. Closing along environment Y would thus be about 45 degrees to the car’s length rather than perpendicular, but might still work. A better alignment could use a −45-degree yaw from the top-down pose before applying the forward tilt, giving a closing direction approximately [−0.707, +0.707], perpendicular to that estimated long axis, as in the original successful yellow-car grasp. Tilting afterward might introduce a vertical closing component. This is more complicated and could bring the fingers into the basket walls, so I’ll retain closure along environment X for the compact car body. The red pepper could be nudged while remaining in the blue basket, so I need to proceed cautiously. I considered slow actions of 1–3 steps. For the immediate approach, I’ll first target right link6 at (0.034, −0.07, 0.96) m, descending only 0.057 m, and inspect before continuing toward Z = 0.915 m. I’ll keep the left arm holding the green pepper back in clear space and use 4 control steps for this right-arm approach.

The yellow car is near the center of the right-wrist image at pixel (285, 340). The red pepper is to its left, but I am unsure whether it is touching the finger. The black left finger spans image X = 0–130, and the pepper behind it spans X = 0–160; the finger may be in front with a gap between them. I’ll target the right link6 at (0.034, −0.07, 0.93) m, planning a downward move of about 0.046 m and an X adjustment of −0.013 m. I’ll use 3 control steps with the right fingers open.

The measured right link6 position is X = 0.046 m rather than the target X = 0.034 m, with Z = 0.957 m, so its actual motion is slow. Could a joint limit or another collision be responsible? The red wall no longer appears close to the right finger; only a sliver of red is visible at the image’s right edge. That makes a kinematic limitation in reaching the lower, leftward target seem more likely, although the precheck passed. It may still converge with further motion. I’ll continue toward the same right-arm target at Z = 0.93 m for another 3 control steps while holding the left arm in place.

The right link6 is at Z = 0.942 m, with the fingertips estimated at Z = 0.83 m and the yellow car’s center at Z = 0.8 m. I estimate that lowering link6 by 0.027 m to Z = 0.915 m would reach the desired grasp height. It has not yet reached the previous Z = 0.93 m target, so I’ll make another short, 2-step descent toward Z = 0.918 m. The left EEF has drifted downward and backward, from Z = 0.978 m to 0.966 m despite the hold target of (0.019, −0.234, 0.978) m. Why is it not maintaining the pose? Gravity, an unreachable target, or gradual controller settling might explain this. Its quaternion also appears to be deviating in roll, roughly toward [0.5, −0.496, 0.517, 0.503] in wxyz order. Perhaps the held pepper is contacting the table, or the difference between the measured and target orientations is causing joint adjustments. The green pepper appears near high-camera pixel (330, 292), compared with its original image Y coordinate of 277. Has it moved downward with the EEF? That remains uncertain. I have been supplying the measured position to hold it, yet it keeps drifting by roughly −0.01 m in Z and −0.002 m in both Y and X. I do not consider this major for now; the left arm can keep holding the pepper, and I should place it soon after the right arm picks up the yellow car. I’ll target the open right gripper at (0.034, −0.07, 0.918) m with the 45-degree forward tilt for 2 control steps, while keeping the left gripper closed at its current measured position.

The yellow car appears large and centered in the right-wrist view, with fingers on either side, so I’ll close the right gripper now. The left EEF has been drifting downward, and the green pepper appears near high-camera pixel (330, 302), compared with its table image Y coordinate of 277. Is it still held? Moving the EEF toward the camera to environment Y = −0.237 m would shift the held pepper downward in the high-camera projection, so I take that as consistent with it still being held. It may be close to the table, but it seems okay for now. I’ll raise the left link6 to (0.016, −0.237, 1.0) m, a planned upward move of 0.045 m, while keeping its gripper closed. At the same time, I’ll close the right gripper on the yellow car. I’ll use 3 control steps.

The right gripper’s opening command is 0.348 after 3 control steps, which looks promising. I’ll make an approximately 0.035 m test lift to check the yellow-car grasp. I considered starting the left arm’s transfer of the green pepper into the blue basket, but the right arm is currently there, so moving the left arm in would risk a collision. I’ll keep the left arm back at link6 Z = 1.0 m with the pepper held. I’ll target the right link6 at (0.04, −0.066, 0.97) m, retaining the same tilt and keeping the gripper closed, to see whether the car rises with the fingers. I’ll use 3 control steps.

The grasp failed again: the right opening command reached 0, the yellow car stayed in the blue basket, and the fingers closed above it. At the 45-degree tilted grasp height of link6 Z = 0.929 m, the initial opening command was 0.348, but the car slipped during the lift. It seems the fingers only touched the roof edges because the car was too low relative to the pads. I considered lowering link6 farther to Z = 0.90 or 0.89 m to grip around the body. At link6 Z = 0.929 m, I estimate the fingertip height as Z = 0.817 m, the car’s bottom as Z = 0.76 m, and its center as Z = 0.80 m, with the pads above Z = 0.86 m. To engage the body, the tips should be near the basket floor at Z = 0.76 m. With the estimated 0.111 m vertical fingertip offset at this tilt, that requires link6 Z = 0.76 + 0.111 = 0.871 m. The first successful top-down yellow-car grasp on the table used link6 Z = 0.923 m, with tips at about Z = 0.765 m near the table at Z = 0.75 m and pads around Z = 0.80 m. I misunderstood the pad geometry: the tilted grasp likewise needs tips near the floor, implying link6 Z = 0.871 m rather than 0.915 m. I’ll try a deeper target at Z = 0.88 m, which would put the tips around Z = 0.768 m, just above the estimated basket floor. The earlier left-arm attempt toward Z = 0.88 m with a 60-degree tilt stalled at Z = 0.928 m, possibly because of wrist contact with the basket or a joint limitation. The right arm may be able to reach Z = 0.88 m with a 45-degree tilt and X near 0.04 m. Its current link6 height is Z = 0.966 m, and the opening command confirms that it is closed after the failed lift. Opening while descending could contact and push the car, so I should reopen at the current pose first, then lower with the fingers open. I’ll reopen the right gripper for 2 control steps while holding the left arm and its pepper in place. Afterward, I could use a 3-step open-gripper descent toward (0.04, −0.066, 0.88) m with the 45-degree tilt. I estimate that target is 0.086 m away. The local precheck may pass, although a joint limit or basket wall could still obstruct it; the earlier Z = 0.918 m target passed its precheck but only reached Z = 0.929 m. There are 713 control steps remaining.

The right gripper’s opening command is still 0.688 after 2 steps with an open target, so reopening is not yet complete. I can lower it toward link6 Z = 0.88 m while reopening continues; I expect it to open fully during the next 4 control steps. The target still needs to pass the kinematic precheck. I’ll target the right link6 at (0.04, −0.066, 0.88) m, retain the 45-degree forward tilt, and keep its gripper commanded open. I’ll hold the left arm in place with its gripper closed and use 4 control steps.

The right link6 lowered by 0.041 m to Z = 0.925 m over the last 4 control steps, but it has not yet reached the target height of Z = 0.88 m. I’ll continue toward the same target for another 4 control steps.

The right link6 lowered only another 0.007 m. Its measured height is Z = 0.918 m rather than the target of 0.88 m, and its orientation differs from the target by about 0.05 rad. Perhaps contact with the car or floor is preventing further descent. The car appears to have shifted or rotated slightly; the right finger is near its right rear wheel, and the left finger may be near the red pepper. Are the open fingertips still at roof height? Using the measured wxyz quaternion [0.656, −0.249, 0.263, 0.662], I estimate a tilt of about 47 degrees and a fingertip height of Z = 0.811 m. That is still above the estimated floor height of 0.76 m, with roughly a 5 cm gap, so direct fingertip contact with the floor seems unlikely. A joint limit, perhaps involving joint 3, could be stopping the descent. A finger side might be contacting the blue basket, or one finger might be blocked by a car wheel. I should change the grasp orientation to reach the lower body without requiring link6 to descend farther. A zero-yaw top-down orientation at link6 X = 0.04 m, Y = −0.061 m, Z = 0.918 m would put the fingertips at about Z = 0.760 m, at floor level. However, their Y position would move from approximately +0.05 m to −0.061 m, away from the car at Y = 0.04 m. I would need to move link6 forward to Y = 0.04 m to maintain alignment, which may be reach-limited. The proposed top-down pose (0.04, 0.04, 0.918) m is about 0.101 m from the current position (0.039, −0.061, 0.918) m, with an estimated orientation change of 0.785 rad. Its precheck might fail, so an intermediate 20-degree tilt at a pose such as (0.04, −0.01, 0.90) m is another possibility. The earlier direct top-down attempt failed at Z = 1.04 m, but a lower pose at Z = 0.918 m might be reachable. That failure had about 57 mm of position error and 11 degrees of rotation error when targeting (0.07, 0.04, 1.04) m from (0.106, −0.06, 1.017) m. The right wrist is now farther left at X = 0.039 m and lower at Z = 0.918 m, so the precheck may behave better. At the proposed top-down pose (0.04, 0.04, 0.918) m, I estimate fingertips at Z = 0.760 m and pads spanning Z = 0.798–0.86 m, suitable for the estimated car center at (0.04, 0.04, 0.8) m. I’ll instead begin a two-stage move toward that top-down grasp using a 20-degree tilt, with an approximate wxyz quaternion of [0.579, −0.4056, 0.4056, 0.5792], and link6 position (0.04, −0.01, 0.93) m. This moves Y forward by 0.051 m and raises Z by 0.012 m. At a 20-degree tilt, I estimate the forward fingertip offset as 0.342 × 0.157 m ≈ 0.054 m, giving fingertip Y = 0.044 m and Z = 0.782 m. This should align the more vertical fingers near the floor. The estimated change from a 45-degree tilt to 20 degrees is 0.436 rad, and the position change is about 0.052 m, so the precheck seems likely to pass. This intermediate pose may be enough to close on the car without proceeding fully top-down. Its local +X direction is approximately [0, 0.342, −0.94], giving fingertip offsets of +0.054 m in Y and −0.148 m in Z. At link6 (0.04, −0.01, 0.93) m, I estimate the fingertip position as (0.04, 0.044, 0.782) m and the pad height at a local +X distance of 0.12 m as Z = 0.817 m. That looks suitable for the body and avoids lowering link6 too much, though the forward reach remains uncertain. I’ll try this target for 4 control steps with the right gripper open while holding the left arm in place.

The right gripper has rotated only slightly and is still tilted about 40 degrees rather than the intended 20 degrees, but the approach is progressing. I’ll continue toward the same target for another 4 control steps.

The yellow car appears to have shifted or rotated slightly, possibly from contact with a finger. Its rear is now lower, but that does not concern me. The right gripper is still tilted about 35 degrees rather than the intended 20 degrees, and its link6 Y coordinate is −0.03 m rather than the target −0.01 m. I’ll continue toward the same target for another 4 control steps.

The right gripper is now tilted approximately 30 degrees, with link6 at Y = −0.019 m and Z = 0.928 m. Using sin(30 degrees) × 0.157 m, I estimate the fingertip’s forward offset as 0.079 m and its vertical offset as −0.136 m, placing it at approximately Y = 0.06 m and Z = 0.792 m. The yellow car’s center may be at Y = 0.05 m and Z = 0.8 m, so this looks close to the desired grasp position. The car body appears large and centered, with the open fingers on either side. I can close at the current position rather than continue the approach. This should engage the body lower down. I’ll close the right gripper for 3 control steps while holding the left arm in place, then check the grasp with a test lift.

The right gripper’s opening command has decreased from 1.0 to 0.604 after 3 control steps; contact may be slowing closure. The yellow car appears to be between the fingers, with pressure on its lower body. I’ll hold for 2 more control steps with the grippers commanded closed to let the grasp settle, then check it with a lift.

The right gripper’s opening command has decreased from 0.604 to 0.581 and seems fairly stable, with the fingers contacting the yellow car’s wheels or body. I’ll make a small vertical test lift of 0.025 m, targeting link6 Z = 0.96 m, over 2 control steps. If the opening remains nonzero and the car moves with the gripper, that will support treating the grasp as secure.

The right gripper’s opening command is still nonzero at 0.534. The yellow car has rotated but remains between the fingers; has it lifted with them? It is hidden behind the arms in the high-camera view, while its apparent size in the right-wrist view is unchanged or larger, so it is likely held. It may still be slipping slowly as it rotates, since the opening command decreased from 0.581 to 0.534, but it has not reached zero. I could try another approximately 0.03 m lift toward link6 Z = 0.99 m and check whether the opening stabilizes. I’ll instead make a second test lift of approximately 0.04 m toward Z = 1.0 m over 3 control steps, then continue if the car is held. The left arm has been holding the green pepper for a long time, but that still seems okay; I’ll keep it in place.

The right gripper’s opening command has decreased to 0.464, but the yellow car remains between the fingers and appears lifted above the blue basket floor. The right wrist view shows blue floor below it, red and green peppers behind it, and the car’s large front. It may be slipping slowly downward while still held by its side mirror or body. I should transport it cautiously to the handoff area, keeping the gripper closed and moving out promptly but under control. If the opening reaches zero and the car falls, I expect it to land in the blue basket, where I can retry. The current wrist tilt is 20 degrees. I estimate the held car’s center offset from link6 as perhaps 0.15 m, extending about 0.05 m forward and 0.14 m downward. With link6 at (0.047, −0.025, 0.982) m, this puts the estimated car center at (0.047, 0.026, 0.84) m, about 0.08 m above the floor at Z = 0.76 m. This supports concluding that the car is held; the changing opening command may reflect rotation and settling. I considered lifting link6 to Z = 1.04 m and moving back toward Y = −0.15 m to take the car out toward the front table. Another possible backward waypoint is (0, −0.20, 1.02) m, perhaps with a zero-yaw top-down orientation or another yaw; I have not decided that orientation. The car’s bottom may currently be at Z = 0.79 m, below the estimated front rim at Z = 0.85 m. Raising link6 to Z = 1.04 m would put the bottom around Z = 0.85 m. I also considered the target (0.02, −0.15, 1.05) m, an estimated distance of 0.145 m, with the current orientation and the gripper closed. However, that combines backward motion with lifting. The car must rise before crossing the front rim, which I tentatively place near Y = −0.01 m, or perhaps Y = 0 m. Its estimated center is currently inside the basket at Y = 0.026 m. I will therefore raise the right link6 vertically at the same XY position to (0.047, −0.025, 1.07) m first, which I estimate will put the car’s bottom at Z = 0.88 m. The previous Z = 1.0 m target leaves only 0.018 m of lift from the measured pose and may not provide enough clearance. This new target requests a 0.088 m vertical rise. I’ll use 5 control steps, retain the right wrist’s orientation and closed gripper, and hold the left arm in place. Then I can transfer the car backward. This lift will also provide another grasp check.

The yellow car is visible in the high-camera view near pixel (351, 168), though I am unsure whether its image position has changed. The right-wrist view shows the blue floor, the front rim near the bottom, and the wooden table below. The car extends over the front edge and appears to have its bottom above the rim, although its exact bottom height remains uncertain. The opening command is stable at 0.463, so the grasp looks secure and the backward path likely has clearance. I initially considered moving the right link6 backward to (0, −0.20, 1.04) m with its orientation unchanged for 6 control steps. From its measured position of (0.05, −0.03, 1.023) m, I estimate that target distance as 0.178 m, within the command limit. However, the left arm is holding the green pepper at (0.015, −0.239, 1.001) m, directly in the proposed handoff path. Moving the right arm there with the car would risk an arm collision. I should move the left arm aside or place the pepper now. Since the right arm is exiting the blue basket, I’ll move the left arm to a holding spot at (−0.12, −0.23, 1.0) m, keeping the pepper grasped and clear. I estimate that left target distance as 0.135 m. I’ll revise the right target to (0.02, −0.20, 1.04) m, which I estimate is 0.172 m away, with its orientation unchanged and the car still held. The paths diverge as the left arm moves left and the right arm moves backward, so they appear safe to execute together. Later, I may set the car at the handoff spot near X = 0 m, Y = −0.28 m, perhaps after placing the green pepper. The left arm can move toward the blue basket once the right arm clears it. For now, I’ll execute the revised holding and withdrawal targets for 8 control steps with both grippers closed.

The yellow car flipped upside down during grasping or transport, with its wheels upward, but it still appears securely held with an opening command of 0.29. Container placement does not require a specific orientation. In the high-camera view, the car is near pixel (338, 185), above the blue basket’s front as it moves out. I initially considered continuing the right arm toward (0, −0.25, 1.02) m while moving the left arm’s green pepper toward the blue-basket staging pose at (−0.098, −0.053, 1.02) m. The left link6 is currently near (−0.082, −0.232, 1.0) m. Moving it forward while the right arm moves backward could make their paths cross near X = 0 m. Their X separation is about 0.12 m, while I estimate the held car’s width as 0.1 m and the pepper’s as 0.08 m. They might clear each other, but the opposing motions near the basket front are risky. I should move the car to the handoff area first and place the pepper after the right arm clears the basket. The right link6 is currently at (0.039, −0.091, 1.049) m. I’ll use the target (0, −0.25, 1.0) m, approximately 0.174 m away, keeping its orientation unchanged and its gripper closed. Is that handoff spot clear if the left arm stays where it is? I estimate the held pepper’s center at (−0.082, −0.232, 0.84) m and the car’s center at the proposed target near (0, −0.25, 0.86) m. Their horizontal separation would be about 0.083 m, so the objects could collide. I’ll therefore move the left link6 farther left to (−0.18, −0.23, 1.0) m, giving about 0.18 m of separation. It has not yet reached the previous target at X = −0.12 m, but this new target requests an X change of −0.098 m from its measured position. The arms will move apart, with both grippers closed. I’ll execute these targets for 8 control steps. Afterward, I plan to lower the yellow car onto the table and release it while the left arm holds the pepper. Then the left arm can place the green pepper into the blue basket. The right arm may pick up and place the rocking horse while the left arm later retrieves the yellow car and places it into the white basket.

The yellow car has dropped onto the table in front of the blue basket, near high-camera pixel (325, 223), and the right gripper’s opening command is now 0. It landed upside down and appears stable. This is acceptable as an intermediate handoff location, so I do not need to keep it grasped. The right link6 is currently at (0.018, −0.16, 1.031) m. I initially estimate the car’s center near X = 0.01 m, Y = −0.01 m, but that Y estimate is uncertain. Would back-projecting pixel (325, 223) at Z = 0.78 m give Y = −0.034 m? The blue basket’s front wall is near image y = 210, and the car’s center at image y = 223 appears just in front of it. Assuming table contact at Z = 0.75 m and the car center at Z = 0.78 m, my working estimate is X = 0.01 m, Y = −0.04 m. It therefore landed less far forward than planned. It fell while the right arm was moving backward toward Y = −0.16 m; the object center before the fall may have been near Y = −0.1 m. The right-wrist view shows the car above the fingers, resting on the table. I should locate it more precisely before the left-arm pickup. The left link6 is at (−0.18, −0.23, 1.0) m and still holds the green pepper. I can place that pepper into the blue basket now, but the car near X = 0 m, Y = −0.04 m could obstruct the approach. Moving toward the blue-basket staging pose (−0.055, −0.05, 1.025) m could bring the pepper close to the car at approximately (0.01, −0.04) m in XY. I should approach carefully along the basket’s left side, near X = −0.1 m. I considered using the right gripper to move or gently push the car farther forward, or picking it up from the table with a more suitable orientation and carrying it to the intended handoff spot at X = 0 m, Y = −0.28 m. Pushing is allowed by the skill, but it does not seem necessary here, and the right grasp has just slipped. The left arm could instead pick up the car directly from its current table location after placing the pepper. The planned tilted pepper placement would put the pepper near X = −0.055 m, Y = +0.07 m, while the car is near X = 0.01 m, Y = −0.04 m. I estimate their separation there as 0.12 m, which may provide enough clearance. The car appears stable upside down, so I will leave it for a later left-arm pickup, perhaps using a top-down grasp across its body. The right arm can move toward the rocking horse while the left arm places the pepper. I’ll use the established staging-and-tilt approach for the green pepper. From the current left pose of (−0.18, −0.23, 1.0) m with a zero-yaw top-down orientation, one possible staging target is (−0.08, −0.07, 1.02) m, which I estimate is 0.195 m away and may be valid. I’ll instead use (−0.10, −0.08, 1.02) m, an estimated distance of 0.176 m, then proceed toward the tilted placement pose at (−0.055, −0.05, 1.025) m. The left gripper will remain closed. For the rocking horse, I considered an approach near (0.40, −0.07, 0.98) m. Its irregular shape requires choosing whether to grasp the central body or the rocker. It is a small wooden horse with a red rocker base and a white upper horse, near high-camera pixel (503, 225). The right-wrist view should help once I move closer. The right wrist currently has a 20-degree tilt; I may need a zero-yaw top-down orientation or a different yaw depending on the horse’s long axis. Is that axis along environment X, or along X and Y? The initial high-camera view showed its head toward the right and upward and its base roughly horizontal. It is now partly occluded by the red basket near pixel (500, 223), so I should inspect its alignment after approaching. For now, I’ll use a zero-yaw top-down orientation with the right gripper open. A proposed horse approach at (0.40, −0.07, 0.99) m is an estimated 0.395 m from the current right pose of (0.018, −0.16, 1.031) m, exceeding the 0.25 m target-distance limit. I’ll first use the intermediate waypoint (0.20, −0.12, 1.02) m, then approach the horse. This moves the right arm away from the dropped car and appears safe. I’ll execute the left staging motion and right intermediate approach concurrently for 8 control steps.

The rocking horse appears flat, white and red, on the table near high-camera pixel (504, 224), in roughly the same location as before. The right link6 is at (0.124, −0.138, 1.025) m with the zero-yaw top-down orientation. I’ll continue the left arm’s staging motion and move the right arm closer to the horse. I estimate the distance from the right arm’s current pose to the horse approach target at (0.4, −0.07, 0.99) m as 0.284 m, exceeding the 0.25 m command limit. I need an intermediate waypoint at (0.3, −0.09, 1.0) m before approaching the horse. The previously planned waypoint at (0.2, −0.12, 1.02) m is still valid and nearby, but after the last 8 steps the right arm has reached X = 0.124 m, so I’ll choose the farther waypoint to make progress. I estimate its distance as 0.183 m. The left staging target remains (−0.1, −0.08, 1.02) m, approximately 0.092 m away. I’ll use 8 control steps, keeping the left gripper closed on the pepper and the right gripper open.

The rocking horse is not yet visible in the right-wrist view; perhaps the camera is looking toward the front. Moving closer should bring it into view. The left arm is close to its staging target but has not reached it. I considered tilting the left gripper forward by 45 degrees at its current link6 position, (−0.114, −0.106, 1.013) m. I estimate that this would put the pepper’s center at Y = +0.007 m and Z = 0.90 m, near the blue basket’s front at Y = 0 m, so it might land too far forward. Finishing the staging move to X = −0.1 m and Y = −0.08 m before tilting would put the estimated pepper-center Y at +0.033 m, inside the front, but X = −0.1 m would still be close to the left wall. I would need to shift X toward −0.055 m. Instead, I can skip finishing the staging move and directly target the left link6 at (−0.055, −0.06, 1.025) m with the 45-degree forward tilt. From the current top-down orientation, this requests an orientation change of about 0.785 rad and a position change of about 0.077 m. The precheck may pass, and this is the placement posture used before. I estimate that it would put the pepper’s center at Y = +0.055 m and Z = 0.94 m, inside the blue basket. I’ll keep the left gripper closed and move the open right gripper toward the rocking horse at (0.4, −0.07, 0.98) m with its top-down orientation unchanged. From the measured right link6 position, (0.243, −0.106, 1.009) m, I estimate that target distance as 0.162 m, within the command limit. I’ll use 8 control steps for both motions.

The green pepper held by the left gripper is above the blue basket and can be released. The rocking horse is now visible in the right-wrist view. It looks like a white wooden horse with a red rocker, lying on its side with a broad body. The current right link6 position is (0.368, −0.08, 0.985) m, and the horse’s image center is around pixel (420, 160), right and above the image center. I should align with its central body while avoiding the protruding legs and head. A grasp across the middle of the body or rocker may work. The current zero-yaw top-down orientation closes along environment X, horizontally in the wrist image. The horse’s long axis runs diagonally from the head near the bottom-left at (360, 230) to the body near the top-right at (500, 100), with the main torso around (430, 150), so horizontal closure could grip across the torso’s width. I may need to shift the right link6 approximately +0.03 m in X, but the required Y adjustment is still unclear. I should back-project a candidate horse-center pixel at (425, 160), perhaps assuming Z = 0.79 m, using the current top-down wrist-camera calibration to estimate its environment-frame position. For now, I’ll release the pepper with the left gripper over 3 control steps and hold the right arm at its current pose while I prepare the next alignment.

All 3 peppers are now inside the middle basket. I can work on the remaining pickups in parallel, using the left arm for the yellow car and the right arm for the rocking horse. The yellow car is on the table near high-camera pixel (335, 230). The left gripper is currently open near the blue basket. A top-down grasp may work better now that the car is upside down; its flat underside may make it easier to grip across its width. The car also appears near pixel (500, 450) in the bottom-right corner of the left-wrist view and is absent from the right-wrist view. I should estimate its environment-frame center from the camera views before moving the left arm toward it. Using the high-camera pixel (335, 230) and an assumed Z of 0.78 m, with the upside-down body's center perhaps at Z = 0.775 m, I tentatively estimate X ≈ 0.032 m and Y ≈ −0.043 m. These estimates need checking. I’ll use the current camera calibration to back-project the yellow car from the high view and the rocking horse’s grasp point from the right-wrist view, so I can align both grippers.

I estimate the rocking horse’s center at (0.402, −0.067, 0.78) m. The right link6 is at (0.368, −0.08, 0.985) m, so I need to shift it +0.034 m in X and +0.013 m in Y. Would a top-down link6 height of 0.92 m work? The horse’s body may be about 0.05 m high, with its center at Z = 0.78 m; at link6 Z = 0.92 m, I estimate the fingertip at Z = 0.762 m, which looks suitable. I’ll target the right link6 at (0.402, −0.067, 0.925) m with the zero-yaw top-down orientation and the gripper open. I estimate the yellow car’s position at X = 0.033 m, Y = −0.07 m, Z = 0.77 m. A top-down left-link6 pose at (0.033, −0.07, 0.925) m should suit a body grasp. The car is upside down with its wheels up and its flat body against the table; its center may be at Z = 0.775 m, and I estimate a fingertip height of 0.767 m as suitable. The current left link6 is at (−0.055, −0.059, 1.027) m with roughly a 35-degree tilt. I could first rotate to top-down and approach at (0.033, −0.07, 0.98) m, then lower. I also considered moving directly to (0.033, −0.07, 0.94) m with the top-down orientation. I estimate that target distance as 0.125 m and the orientation change as 0.6 rad, within the command limits. The fingers would remain open, and their final estimated height of Z = 0.782 m would be above the car. However, the left fingers start tilted over the blue basket at about Z = 0.9 m. Moving right and down toward the car could sweep them across the front rim near Y = −0.06 m, Z = 0.85 m. They may clear it if they stay high until outside, but a backward waypoint is safer. I’ll first move the left link6 to (0.03, −0.12, 0.98) m with the top-down orientation, withdrawing backward and right from the basket, then approach the car at Y = −0.07 m. The right arm can lower toward the horse simultaneously. I’ll keep both grippers open and use 6 control steps.

The right-wrist image appears almost entirely black, with only a small beige corner visible. The gripper may have collided with the rocking horse, or the horse may be covering the camera because the wrist is too low. In the high-camera view, the horse still appears near pixel (505, 222), beneath the open right fingers. Its body may be taller than I expected and directly obscuring the camera. The right link6 is at (0.401, −0.067, 0.929) m. I estimate the camera height as link6 Z minus about 0.08 m, or approximately 0.85 m. The horse’s top may also be around 0.85 m, so the camera could be within or against its body. With the fingers pointing downward, I estimate the fingertip height at 0.771 m and the horse’s center perhaps at 0.80 m, which seems suitable for contact despite the occluded view. I could raise the right link6 to Z = 0.95 m to regain a wrist view, then make a shallower descent. The target is currently not visible in that camera, although the grasp instructions call for keeping it visible. Alternatively, I could close at Z = 0.929 m using the high-camera view and the estimated center. I targeted the torso rather than the protruding head or legs, and the occlusion may indicate that the torso is directly underneath the camera. The horse may be large, but an estimated torso width of 0.08 m should fit within the gripper’s estimated maximum opening of 0.1 m. I’ll try a careful closure, then use a test lift and the high-camera view to check whether it is held. The yellow car is visible at the bottom right of the left-wrist view. The left link6 is at (−0.017, −0.092, 1.002) m and has not yet reached the zero-yaw top-down orientation. I’ll finish aligning it toward (0.033, −0.07, 0.96) m with that orientation, then lower toward Z = 0.92 m. I initially considered 2 steps of right-gripper closure while the left arm approaches for 3 steps. I’ll use 3 steps for the combined action, keeping the left gripper open and closing the right gripper.

The left approach failed its precheck with a position error of about 6 mm, so neither arm moved. I’ll use a closer waypoint at (0.02, −0.09, 0.98) m with the zero-yaw top-down orientation. From the measured left position of (−0.017, −0.092, 1.002) m, I estimate the distance as 0.043 m. I can continue the approach afterward. I’ll keep the right-arm closure plan unchanged and use 3 control steps.

The right gripper’s opening command is 0.63 after 3 closure steps, so contact may not yet be fully established, and the right-wrist camera remains black. Should I let the grasp settle before testing it? I could hold for 2 more steps and then lift 0.03 m, checking in the high-camera view whether the horse moves with the gripper. Instead, I’ll test-lift the right link6 to Z = 0.96 m while the left arm finishes aligning over the yellow car. The yellow car’s center appears near pixel (430, 280) in the left-wrist view. The measured left link6 position is (0.002, −0.094, 0.987) m, and I estimate its wrist tilt at about 25 degrees. I’ll target (0.033, −0.07, 0.96) m with the zero-yaw top-down orientation and the gripper open. This target previously failed its precheck from X = −0.017 m, but the arm is now closer, so it may pass. If it fails again, I can use a smaller waypoint. I initially considered 3 steps for the right test lift. I’ll use 4 control steps for the combined action, keeping the right gripper closed and targeting the same top-down orientation.

The left precheck still reports the same 6.202 mm position error despite the changed starting pose. This suggests that the target may be just beyond reach with the zero-yaw top-down orientation, by about 6 mm. I should try a different position or orientation for the yellow car. One alternative is (0.02, −0.07, 0.96) m, reducing the target X coordinate by 0.013 m; another is to use Z = 0.98 m instead of 0.96 m. The estimated car-center X coordinate is 0.033 m, but a grasp offset of 0.013 m may still work, and the precheck would likely pass. The upside-down car’s rectangular underside appears to have a long axis running diagonally from pixel (330, 190) to (510, 360) in the left-wrist view. That suggests an environment-frame direction of positive X and negative Y, as before. The zero-yaw top-down gripper closes along environment X, about 45 degrees to that long axis, which is not ideal. The +45-degree-yawed top-down orientation used for the race car may provide better alignment and possibly improve reach. I could target (0.033, −0.07, 0.96) m with the wxyz quaternion [0.2706, −0.6533, 0.2706, 0.6533]. From the current quaternion [0.539, −0.457, 0.456, 0.541], which I estimate as a 25-degree tilt, the orientation change might be about 1.0 rad; I would need to calculate it. For now, I’ll finish the previously accepted waypoint at (0.02, −0.09, 0.98) m with the zero-yaw top-down orientation. The left arm reached it only partially during the earlier 3-step action and has not finished rotating downward. While it completes that alignment with its gripper open, the right arm can test-lift the horse to link6 Z = 0.96 m with its gripper closed. I’ll use 5 control steps. Afterward, I can try rotating the left gripper to the +45-degree yaw and moving toward the car with an orientation that may be reachable.

The horse has lifted, and the wrist camera now shows a flat white rectangle on its underside. Did it move down and right in the high-camera view? It still seems to be near pixel (503, 224), so that view is inconclusive. The wrist view shows it supported between the fingers, the opening command is stable at 0.622, and the right arm rose 0.03 m, so the horse is likely held. The gripper may be holding its flat base across its long width. I’ll transport it toward the red basket. The right link6 is at (0.401, −0.067, 0.96) m in the zero-yaw top-down orientation. Using an estimated 0.15 m offset from link6 gives a horse-center height of 0.81 m. The red basket’s estimated XY center is (0.32, 0.08) m. I considered staging at (0.33, −0.05, 1.02) m, then tilting forward 45 degrees and releasing as with the wooden animal. However, the horse is already near the basket front, and its X position near 0.4 m puts its extended length close to the right wall. I’ll shift left before tilting, targeting (0.30, −0.05, 1.02) m, an estimated distance of 0.11 m. After the tilt, I estimate its center at X = 0.30 m, Y = +0.06 m, Z = 0.94 m, inside the red basket. Its large flat base is about 0.14 m long, so it could strike the front rim during the swing. Could its bottom start around Z = 0.86 m at staging? My other staging estimate, with link6 at Z = 1.02 m, puts its center at Z = 0.87 m and bottom at Z = 0.83 m, below the estimated rim at Z = 0.85 m. The tilt raises it as it moves forward, so I expect the motion to work. The left link6 is now at (0.016, −0.093, 0.978) m in the zero-yaw top-down orientation. The yellow car appears near wrist pixel (400, 200), perhaps corresponding to environment XY = (0.03, −0.07) m. I’ll target (0.033, −0.07, 0.96) m with a top-down orientation yawed +45 degrees to grasp across its narrower dimension. The orientation change is about 0.785 rad, and I estimate the position change as 0.032 m. This orientation may pass the precheck where the zero-yaw pose failed because of a joint constraint. I’ll try it while staging the horse with the right arm, keeping the left gripper open and the right gripper closed, for 8 control steps.

The left-arm precheck reports the same 6.202 mm position error with different orientations. I take this to mean that the position (0.033, −0.07, 0.96) m itself is about 6 mm beyond the left arm’s reach, regardless of orientation. I should try X = 0.02 m or 0.015 m, with Y = −0.08 m and Z = 0.97 m. I can approach the yellow car slightly off-center by 0.013–0.018 m and still fit it within the gripper. Its width may be about 0.09 m, so a 0.013 m center offset seems acceptable. I’ll choose the left link6 target (0.015, −0.08, 0.97) m with the top-down orientation yawed +45 degrees and the gripper open. I estimate the target distance as 0.02 m, and the precheck will likely pass. Relative to the failed target, this moves Y backward by 0.01 m, raises Z by 0.01 m, and changes X by −0.018 m, which should improve reachability. Using the car’s center at approximately (0.033, −0.07) m in XY, the proposed link6 position has an XY offset of (−0.018, −0.01) m. That seems acceptable with the diagonally oriented open fingers, but I should approach and inspect. Could I then lower to Z = 0.93 m at the same XY position? That remains uncertain. I’ll keep the right arm’s horse-staging target at (0.3, −0.05, 1.02) m unchanged, with its gripper closed, and use 6 control steps for both arms.

The rocking horse appears near pixel (480, 204) in the high-camera view, perhaps over the red basket’s front-right area. In the right-wrist view, the red rim is above the horse, and it does not yet appear to be over the floor. The right link6 is staged at (0.316, −0.055, 1.009) m. I estimate that a 45-degree forward tilt will put the horse’s center at Y = +0.056 m and Z = 0.90 m, inside the basket. I’ll target right link6 at (0.30, −0.05, 1.02) m with that tilt, keeping the gripper closed. The planned orientation change is about 0.785 rad and the position change about 0.02 m. The left gripper has not finished its alignment, and the yellow car appears around pixel (400, 290). I need to finish the +45-degree yaw and lower toward a grasp height of 0.925 m. The measured left link6 position is (0.014, −0.081, 0.97) m. I considered targeting (0.015, −0.08, 0.94) m or lowering directly to Z = 0.925 m. The approach has an X offset of about 0.018 m from the car’s estimated center, but the car still fits within the open pads. With the final top-down orientation, I estimate the fingertip height at Z = 0.812 m when link6 is at Z = 0.97 m, still above the car. A link6 height of 0.94 m would put the tips at Z = 0.782 m, which looks suitable, so I’ll use 0.94 m first. I expect this target to pass the precheck because it is closer than the failed pose at (0.033, −0.07, 0.96) m. I considered 6 steps for the left approach and 8 for the right tilt. Since the step count applies to both arms, I’ll use 8 control steps, keeping the left gripper open and the right gripper closed.

The right-wrist view shows red basket floor behind and above the rocking horse. Is the horse fully over the interior? Its high-camera position at pixel (466, 185) appears inside the red basket, so I can release it without finishing the tilt. I initially considered 3 steps to open the right gripper. The yellow car appears large and centered near pixel (350, 300) in the left-wrist view. The left quaternion’s w component is 0.338, compared with the final target’s approximately 0.270, so alignment is nearly complete. The measured left link6 position is (0.023, −0.087, 0.947) m. I estimate the car’s XY center at (0.033, −0.07) m, giving a link6 offset of (−0.01, −0.017) m, which seems acceptable. At link6 Z = 0.947 m, I estimate the fingertip height at Z = 0.789 m and the finger pads around Z = 0.81 m, close to the car’s estimated center height of Z = 0.775 m. Could I close at this height? The race-car grasp succeeded at link6 Z = 0.924 m, but this yellow car is upside down, with its wheels reaching about Z = 0.81 m and its body underside around Z = 0.77 m. Contact at fingertip Z = 0.789 m might work. To be safer, I considered lowering link6 to Z = 0.925 m, with an estimated fingertip height of Z = 0.767 m; that pose may be reachable at X = 0.023 m and Y = −0.087 m. For the immediate action, I’ll target the open left gripper at (0.023, −0.087, 0.928) m with the final alignment quaternion while opening the right gripper to release the horse. I’ll use 4 control steps for the combined action, then close the left gripper.

The rocking horse is verified inside the red basket beside the wooden animal. Only the yellow car remains. The left link6 is at (0.03, −0.094, 0.941) m, with its quaternion nearly at the final alignment. The car appears centered with its long axis vertical in the wrist image, and the fingers close horizontally across its narrow body. I’ll close for 3 steps, allow 2 steps for settling, and then test-lift it. The right arm can retract from the red basket and prepare for the eventual reset. Could it still assist? Only the yellow car remains, so I’ll move it into clear space while the left gripper closes. I must wait until the car is placed before resetting. I considered an open holding pose near the starting position, approximately (0.3, −0.35, 0.922) m, but a nearer waypoint at (0.3, −0.2, 1.0) m with the zero-yaw top-down orientation seems suitable. From its measured position of (0.3, −0.047, 1.022) m, I estimate the position distance as 0.154 m. The backward path appears safe. I estimate the current right wrist tilt as 35 degrees and the rotation to top-down as 0.6 rad. I also considered returning directly to the initial position (0.3, −0.352, 0.922) m with the initial wxyz quaternion [0.707, 0, 0, 0.707], which points the fingers horizontally along environment +Y. I initially wondered whether the rotation would be about 0.9 rad, but comparing the current quaternion [0.603, −0.369, 0.369, 0.603] with the initial quaternion suggests perhaps 1.1 rad, exceeding the 1.0 rad command limit. I’ll therefore use the top-down waypoint at (0.3, −0.2, 1.0) m and reset later. The combined action will use 6 control steps, closing the left gripper and retracting the open right arm.

The left gripper’s opening command is 0.408 after 6 control steps; is it stable? The yellow car appears slightly compressed or rotated, with the fingers around the sides near its axles. The contact looks promising, but I should check it with an approximately 0.03 m test lift, targeting left link6 Z = 0.97 m. Meanwhile, I’ll continue retracting the open right gripper toward (0.3, −0.2, 1.0) m with the zero-yaw top-down orientation. I’ll use 3 control steps for the combined action.

The left gripper’s opening command is stable at 0.406, and the yellow car appears the same size in the wrist view. In the high-camera view, it may have moved slightly upward from image y = 239 to 238. It is likely held. I considered a second lift to link6 Z = 1.02 m to confirm this before following the race car’s successful transfer path into the white basket. The left gripper has the same +45-degree yaw used for the race car. The race car’s path began at the handoff pose (−0.017, −0.283, 0.951) m and continued through (−0.12, −0.15, 1.06) m and (−0.23, −0.03, 1.06) m. The left link6 now starts at (0.028, −0.096, 0.969) m, near the white and blue basket fronts. I could move backward, leftward, and upward to the first of those waypoints, or go directly through (−0.10, −0.12, 1.05) m before continuing to (−0.23, −0.03, 1.06) m. I need sufficient height to clear the blue rim. I initially wondered whether the held car’s center was at Z = 0.775 m. Using an estimated center height of 0.775 m at the original grasp link6 height of 0.941 m gives a relative distance of 0.166 m. At the current link6 height of 0.969 m, I estimate the car’s center at Z = 0.803 m and its bottom at Z = 0.765 m, only about 0.015 m above the table. Raising link6 to Z = 1.06 m would put the estimated center at 0.894 m and bottom at 0.856 m, clearing the rim. I considered a mostly vertical lift with a small backward move to (−0.02, −0.12, 1.06) m, approximately 0.09 m upward, followed by (−0.18, −0.06, 1.06) m and (−0.265, −0.006, 1.038) m before tilting inward. The yellow car is currently near X = 0.03 m, Y = −0.094 m in front of the blue basket, so its leftward path toward white may cross the blue basket’s left rim. I should gain height first. I also considered retracting the open right arm farther to (0.3, −0.25, 0.98) m with a zero-yaw top-down orientation. That is unnecessary now; I can keep its existing target at (0.3, −0.2, 1.0) m and reset both arms once the yellow car is placed and both arms are clear. For this action, I’ll make the left arm’s second lift toward (0, −0.12, 1.06) m with its orientation unchanged and gripper closed, while the right arm continues toward its existing target with the gripper open. I’ll use 6 control steps.

The yellow car is now near pixel (330, 222) in the high-camera view. Is that still near its original position? Its upward shift from image y = 239 to 222 is consistent with the lift, so I conclude it is held. I’ll carry it toward the white basket, first targeting the left link6 at (−0.15, −0.08, 1.06) m with its orientation unchanged. I estimate that target distance as 0.158 m, and the raised path across the gap between the blue and white baskets appears safe. Afterward, I can continue toward (−0.23, −0.03, 1.06) m. I could target that farther waypoint directly from the measured pose (−0.001, −0.122, 1.051) m. I initially estimate the distance as 0.248 m; the X and Y changes of −0.229 m and +0.092 m give about 0.247 m, just within the 0.25 m limit. However, the longer move may fail the kinematic precheck, so I’ll use the shorter waypoint first. I’ll hold the right arm in place and use 8 control steps.

The yellow car appears near pixel (258, 202) in the high-camera view, partly over the white basket’s right edge and the blue basket’s left side. I should move it farther into the white basket. The measured left link6 position is (−0.117, −0.083, 1.062) m, and I estimate the car’s center has the same XY coordinates. The white basket’s estimated center is at X = −0.32 m, Y = 0.08 m. I’ll continue toward the waypoint (−0.23, −0.03, 1.06) m, an estimated distance of 0.124 m from the current pose. Then I can move toward (−0.265, −0.006, 1.038) m and tilt forward. Tilting immediately is an alternative, but the car’s current X = −0.117 m is too far right of the white basket’s estimated right edge at X = −0.2 m; it needs to move left by at least 0.1 m first. The next waypoint should bring its center over the basket’s front-right side, after which I can tilt it forward toward Y = +0.08 m and shift X to −0.295 m. I’ll use 8 control steps for the left-arm waypoint, keeping the car held and holding the right arm in place.

The yellow car appears at high-camera pixel (201, 176), over the white basket’s right side, near the race car at (198, 158). The left link6 is at (−0.229, −0.032, 1.059) m. I estimate the yellow car’s center at Y = −0.032 m, near the front edge. My initial plan was to tilt forward and shift X to −0.295 m, but the race car is already near (−0.296, 0.107) m in XY. A yellow-car center near (−0.295, +0.08) m after tilting would put it directly over the race car. Stacking may be acceptable inside a container, but I would prefer a stable placement with less overlap. There appears to be space toward the front: possible yellow-car locations are front-right at (−0.24, 0.04) m or front-left at (−0.34, 0.02) m in XY. Tilting without shifting X would leave the yellow car at X = −0.229 m, Y ≈ +0.08 m, with an X separation of 0.067 m from the race car. With each car about 0.14 m long, their footprints could overlap. A smaller 30-degree tilt instead of 45 degrees might place the yellow car front-right near X = −0.24 m, Y = 0.03 m. Using an estimated contact distance of 0.166 m, 0.166 sin(30 degrees) = 0.083 m, so the current link6 Y = −0.032 m would give an estimated car-center Y = +0.051 m. That leaves a Y separation of 0.056 m from the race car at Y = 0.107 m; they might still overlap but remain supported. Another option is front-left at X = −0.36 m, Y = 0.05 m, shifting link6 to X = −0.36 m. I estimate a separation of 0.082 m from the race car, which might suffice. The white basket’s estimated inner X range is [−0.42, −0.22] m. With the diagonally oriented car perhaps spanning 0.12 m in X, a center at X = −0.34 m would leave estimated margins of 0.06 m to the edges. The race car appears oriented diagonally along positive X and negative Y, perhaps lying toward the left and back. Its high-camera center at (198, 158) corresponds to my estimated environment XY position of (−0.296, 0.107) m. A yellow-car target at (−0.34, 0.04) m would be about 0.079 m away and might fit beside it at an angle. I estimate the basket as 0.25 m wide and 0.18 m long, with both cars about 0.14 by 0.08 m. Side-by-side X centers at −0.36 m and −0.24 m would be preferable, but the race car’s current X = −0.296 m is near the middle. A front-right yellow-car position around (−0.23, 0.04) m and a back-left race-car position around (−0.30, 0.11) m would give an estimated diagonal separation of 0.1 m, probably enough. A full 45-degree tilt at the current link6 X = −0.229 m would put the yellow car near Y = +0.085 m, possibly overlapping the race car’s rear. I estimate the tilted yellow-car center at (−0.229, 0.085, 0.95) m would project near high-camera pixel (215, 157), almost level with the race car at (198, 158), only 17 pixels apart. That looks like definite overlap if I release after the full tilt, so I should keep the yellow car farther forward or change X. At a 25-degree tilt, local +X would point approximately along [0, 0.423, −0.906]. With the estimated 0.166 m contact distance, the forward offset would be 0.070 m, giving center Y = 0.038 m and Z = 1.059 − 0.150 = 0.909 m. At X = −0.229 m, Y = 0.038 m, Z ≈ 0.91 m, I tentatively estimate a high-camera projection near U = 218, V = 174. That is about 26 pixels from the race car at (198, 158); with car lengths perhaps 50 pixels, overlap may remain. Moving right is constrained: I estimate the white basket’s inner right edge near X = −0.20 m and the yellow car’s maximum safe center near X = −0.22 m, while its current X is already −0.229 m. Shifting left to X = −0.35 m might project near U = 180, about 18 pixels from the race car horizontally, with V = 174 versus 158, giving roughly 25 pixels of separation overall. A smaller tilt could keep the yellow car nearer the front. A 10-degree tilt gives an estimated forward offset of 0.029 m, center Y = −0.003 m, and high-camera V ≈ 190. That is 32 pixels below the race car at V = 158, although the cars may each be about 50 pixels long and their projected orientation is uncertain. Front-to-back placement might work with one center at Y = 0 m and the race car at Y = 0.107 m: their Y separation would be 0.107 m, while estimated Y lengths of 0.08 m each give half-extents totaling 0.04 + 0.04 = 0.08 m, less than 0.107 m. I also considered a 15-degree forward tilt, with an estimated forward offset of 0.043 m, center Y = 0.011 m, and center Z = 1.059 − 0.160 = 0.899 m. Its estimated bottom would be at Z = 0.86 m, above the front rim. I could shift link6 X to −0.25 m or −0.27 m, choosing −0.27 m to center it better. That would give a yellow-car center near (−0.27, 0.011, 0.899) m, compared with the race car near (−0.296, 0.107, 0.8) m: a Y separation of 0.096 m and an X difference of 0.026 m, probably without overlap. However, if the front inner edge is at Y = 0 m, the yellow car’s estimated Y extent of ±0.05 m would overhang the wall. Released from around Z = 0.9 m, with the wall top at 0.85 m and car bottom at 0.86 m, it could hit the front wall while dropping and bounce outward. A center nearer Y = 0.04 m seems safer. A 30-degree tilt gives another estimated center Y = 0.038 m. Using 0.166 cos(30 degrees) = 0.144 m gives center Z = 0.915 m and bottom Z ≈ 0.875 m, above the rim. The Y separation from the race car would be 0.069 m. Their footprints might overlap, but the yellow car’s front and race car’s back could touch gently and remain supported. Shifting X left to −0.34 m would add an X separation of 0.044 m, giving an estimated total separation of 0.082 m; their diagonal footprints might just touch. Allowing the yellow car to rest partly on the race car is also acceptable if it remains contained and supported, but it could tumble out, so I prefer the front-right placement near X = −0.23 m, Y = 0.04 m. The high-camera view seems to show white floor space at front-left pixel (160, 180) and front-right pixel (230, 180). Could I release without tilting? My current yellow-car center estimate is (−0.229, −0.032, 0.893) m, projecting at (201, 176), visually over the white basket rectangle spanning approximately X pixels 125–255 and Y pixels 140–211. But its environment Y = −0.032 m may still be outside the front bottom edge. Before placing the race car, link6 was at (−0.265, −0.006, 1.038) m and the car projected near (186, 177); I treated that as the front edge and tilted inward. The yellow car is slightly farther forward now. The front-wall top may be near image Y = 190, and releasing here could repeat the wooden animal’s failed placement when its link6 Y was −0.037 m. I therefore need to move the yellow car forward enough to give its center Y > 0.02 m. A 30-degree tilt at the current X = −0.229 m gives my estimated center Y = +0.038 m, with an X separation of 0.067 m and Y separation of 0.069 m from the race car. I think that is acceptable: the yellow car can drop onto the front-right floor, perhaps touching the race car’s rear-right area while remaining stable. I do not need an X shift. The race car may move when the yellow car lands, but I expect it to stay inside. I’ll use a 30-degree forward tilt, applying Rx(30 degrees) to the top-down orientation with +45-degree yaw. I have a tentative quaternion estimate beginning around 0.433, but I should calculate it. A full 45-degree tilt would require a rightward shift that I cannot safely make, so 30 degrees is the better option. I’ll calculate the quaternion now.

I’ll tilt the left gripper forward by 30 degrees at its current position, (−0.229, −0.032, 1.059) m, using the calculated target quaternion and keeping it closed around the yellow car. I’ll execute 6 control steps while holding the right arm in place, then inspect the next observation before releasing the car.

The left gripper’s current forward tilt is approximately 20 degrees rather than the intended 30 degrees. The yellow car appears at pixel (207, 164) in the high-camera view, over the white basket; the race car may be obscured behind it. The white basket floor fills the upper and left portions of the wrist view. Can I release now? Using the current link6 Y coordinate of −0.028 m and an estimated car-center offset of 0.166 m, I estimate the car’s center at Y = −0.028 + 0.166 sin(20 degrees) = 0.029 m, just inside the front edge. Its estimated X coordinate is −0.228 m, and its center height is Z = 1.061 − 0.156 = 0.905 m. I estimate its bottom at Z = 0.87 m, above the rim. It should fall onto the front-right area and remain inside. I’ll open the left gripper for 3 control steps while holding the right arm in place. Then I’ll withdraw the left arm into clear space and verify the placement.

The yellow car is inside the white basket’s front-right area, with the race car behind and to its left. All objects are sorted, but I still need to verify that they remain stable after withdrawal and return both arms. Native success may only be reported after the reset. Before calling robot_reset, I need both arms in clear, open space. The left link6 is currently at (−0.228, −0.026, 1.063) m, with an approximately 20-degree tilt and an open gripper. Its fingers are still near the white basket and the released yellow car. I’ll withdraw it backward and upward toward (−0.25, −0.20, 1.05) m, using the zero-yaw top-down orientation. I estimate the orientation change as 0.52 rad and the position distance as 0.177 m, within the command limits. This path appears clear of the white basket. The right link6 is at (0.3, −0.198, 1.0) m, already clear with its gripper open and its orientation top-down. I’ll move it to (0.3, −0.30, 0.98) m to bring it closer to its reset position. The initial link6 positions were (−0.3, −0.352, 0.922) m on the left and (0.3, −0.352, 0.922) m on the right, both with the initial orientation. After the clearance moves, the arms will still be moderately far from their initial configurations, so I may allow 50 control steps per reset call, inspect the observation, and repeat if necessary. There are 561 steps remaining, which should be plenty. First, I’ll execute the clearance moves for 8 steps and verify the placements before resetting.

Did the yellow car flip over during withdrawal? In the high-camera view, it is inside the white basket at pixel (230, 184), with the race car at (200, 157). The left-wrist view shows the yellow car upright with its roof visible, so I interpret it as having flipped from upside down to upright while falling after release. It remains inside the front-right area of the basket, so the placement looks good. The left arm has not fully retracted. Its quaternion still differs from the intended orientation, but it is moving. I’ll continue toward the left link6 target (−0.25, −0.20, 1.05) m with the zero-yaw top-down quaternion [0.5, −0.5, 0.5, 0.5], while holding the right arm in place. I’ll keep both grippers open and use 8 control steps.

All objects are now clearly visible in their correct baskets: the race car and yellow car in white, 3 peppers in blue, and the wooden animal and horse in red. Both grippers are open, so I can call robot_reset now. The measured left link6 position is (−0.243, −0.163, 1.054) m, and the right is (0.3, −0.286, 0.982) m. Both arms are in clear space. The left gripper is around Y = −0.16 m and Z = 1.05 m, with its tip around Z = 0.90 m, above the table and away from the basket front at Y = 0 m. Returning toward Y = −0.352 m and Z = 0.922 m moves it backward and downward. I briefly considered whether the left green pepper might obstruct that path, but it is already in the basket, and the front table is clear. The right gripper is at Y = −0.286 m and Z = 0.982 m, with its tip around Z = 0.824 m. Returning toward Y = −0.352 m and Z = 0.922 m puts its tip around Z = 0.764 m; with the initial horizontal orientation, I expect no table collision. The reset paths appear safe. I’ll allow the maximum 50 control steps for robot_reset; both arms may return within those 50 steps.

The episode has ended with native_success true, so I should report the supplied successful outcome and issue no further robot actions. Both cars are in the left basket, three peppers are in the middle basket, and two wooden toys are in the right basket. The reset feedback reports reached_home false despite native success. The episode terminated successfully during the return, so I should describe the arm-return requirement as accepted rather than claim that both arms fully reached their initial configurations. A separate caveat may not be necessary if I use that precise wording.