robotics
The Robot's Knuckles Move Before Its Fingers Do
ORBIT rotates independent fingers around a cylindrical palm in under a second, letting one platform compare hand morphologies directly.
Summary
ORBIT rotates independent fingers around a cylindrical palm in under a second, letting one platform compare hand morphologies directly.
Robotic-hand studies often compare controllers on fixed hardware, leaving the hand's morphology entangled with the result. ORBIT adds a belt-driven rotating knuckle that moves each finger around a cylindrical palm without disassembly. The authors report reconfiguration in under one second, average finger angular velocity of 1.57 radians per second and root-force resistance of 50 newtons. A three-finger prototype compared anthropomorphic, isometric and Barrett-style layouts on eleven objects, while the orbital degree of freedom enabled cube-face reorientation, lid threading and sub-centimeter pinching. This is an initial platform and pilot grasping study, not a universal ranking of hand designs; its contribution is repeatable morphology comparison on shared hardware.
Why it matters
ORBIT rotates independent fingers around a cylindrical palm in under a second, letting one platform compare hand morphologies directly.
Limits and context
- This is an initial platform and pilot grasping study, not a universal ranking of hand designs; its contribution is repeatable morphology comparison on shared hardware.
Key claims
ORBIT rotates independent fingers around a cylindrical palm in under a second, letting one platform compare hand morphologies directly.
Qualification: This is an initial platform and pilot grasping study, not a universal ranking of hand designs; its contribution is repeatable morphology comparison on shared hardware.
Evidence: source-2026-10-27-010
Sources
- arXiv preprint 2610.33241, original v1arXiv · primary research
Corrections
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