TwinDEX: wearable co-designed grippers let a dexterous robot finish 20+ step chemistry lab with zero on-robot training
chris_j_paxton · x · 2026-09-02
XSquare unveils TwinDEX, a pair of co-designed three-finger, nine-DoF dexterous interfaces — one wearable for human data collection, one deployed on the robot. Identical kinematics, contact surfaces, appearance, and sensors keep observations and actions aligned end to end.
Key results:
- Trained from scratch on only a few hundred wearable demos, with zero on-robot training or intervention data
- Completed a standardized 20+ step chemistry experiment involving tool switches, fine force control, and bimanual coordination
Commenter Chris Paxton's takeaway: long-horizon tasks are fundamentally a data problem — well-designed isomorphic collection tools cut the data needed far below expectations.
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