UCLA's TriMI: a $800 tri-modal robotic hand interface for demos, teleop and execution
chris_j_paxton · x · 2026-11-12
UCLA and UC Berkeley researchers unveiled TriMI, a tri-modal manipulation interface that handles direct demonstration, joint-level haptic teleoperation, and robotic policy execution with the same hardware.
- Four-finger design with 13 degrees of freedom (4 in the thumb, 3 per finger)
- BOM cost around $800 (excluding tracking device and wrist camera)
- A diffusion policy trained on collected demos scored 18/20 (90%) on cube pick-and-place and 12/16 (75%) on cap unscrewing
- Full open-source release coming soon
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