Observed arrival · 2026-10-07

PMARC Labs puts force sensing inside a robotic finger joint

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Editorial interest 78/100 Selection signal · not a rating of the site

PMARC Labs is developing small actuator modules for robotic hands, combining powered motion with built-in torque and position sensing.

Landing page captured for the 2026-10-07 issue.

For: Robotic-hand builders and dexterous robotics labs
Worth noticing: The torque sensor sits on the output side of the gearing; the site says the mechanism was first proven at palm scale in the PMARC Cube.

Field notes

The site explains why motor-current force estimates break down at finger scale: high gear reduction and friction obscure the signal. Its module diagram names an output flange, sensing flexure, planetary stage, housing, frameless motor, and encoder/drive board. PMARC describes the Cube as a palm-scale proof of the mechanism, while production modules and a first production run remain future steps.

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