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Physical AI Lab

Peg insertion: how bore depth changes clearance under tilt

Published: October 5, 2026 by Physical AI Lab

Entrance clearance alone cannot establish a tilted peg’s finite insertion clearance. Compare short and deep bores, axis alignment and the actual flat tip.

Categories World Models and Simulation

Cable-carrier U-loops: the end-wall clearance a centerline check misses

Published: October 5, 2026 by Physical AI Lab

A shorter U-loop can still cross an end wall. Compare fixed-anchor placement, the shortest straight and the whole outside envelope in measured Blender geometry.

Categories World Models and Simulation

Round and relieved locating pins: orient relief for hole-spacing error

Published: October 5, 2026 by Physical AI Lab

A second round pin can bind despite individual hole clearance. Compare relief direction and combined spacing/transverse error using independently checked Blender geometry.

Categories World Models and Simulation

Two universal joints: check yoke phasing and bend-angle equality separately

Published: October 5, 2026 by Physical AI Lab

Two universal joints can match full revolutions while advancing unevenly. Compare yoke phasing and equal bend angles using independently audited native Blender geometry.

Categories World Models and Simulation

Custom gripper fingers: reach the neck without hitting the shoulders

Published: October 5, 2026 by Physical AI Lab

A pad can fit a narrow neck while its carrier hits a wider shoulder. Compare reach, pad height and placement using seven independently audited Blender geometries.

Categories World Models and Simulation

Two-link arm planning: a clear tool path can cross a blocked elbow sweep

Published: October 5, 2026 by Physical AI Lab

A clear tool path can still drive the forearm or elbow housing into a fixture. Compare two IK branches and an outside waypoint in an audited two-link model.

Categories World Models and Simulation

Enclosure screw access: check the whole driver before sizing the hole

Published: October 5, 2026 by Physical AI Lab

A bit can reach a screw while the shaft or collar hits the lid. Compare opening diameter, offset and drive depth using the complete driver envelope.

Categories World Models and Simulation

Stereo camera placement: count shared sightlines around a fixture

Published: October 5, 2026 by Physical AI Lab

A wider stereo baseline can improve either-camera coverage while reducing shared sightlines. Compare fixture occlusion, framing and a sideways rig move.

Categories World Models and Simulation

Cam base radius: check the roller-follower pressure angle before shrinking the cam

Published: October 5, 2026 by Physical AI Lab

The same roller-follower stroke can need a larger cam to reduce pressure angle. Compare base radius, actual contact geometry and a declared angle target.

Categories World Models and Simulation

Open or crossed belt: more wrap also changes the path

Published: October 5, 2026 by Physical AI Lab

Crossing a belt reverses direction and increases ideal wrap, but its spans still intersect. Compare actual tangent geometry before choosing a physical route.

Categories World Models and Simulation
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