ARISTO Hand uses hyperextension to grip thin objects with 2.76x more force
A robotic hand that bends its fingertips backward to manipulate flimsy cards and cables.
Deep Dive
Researchers present the ARISTO Hand, a tendon-driven robotic hand with active distal hyperextension that lets fingertips bend backward beyond normal limits. This boosts pull-out force by 2.76x for objects 1–20 mm thick. A hybrid fingertip (rigid nail-mounted force-torque sensor + soft capacitive tactile array) enables precise manipulation of thin items like SD cards. The hand was validated on a multi-stage SD card extraction and insertion task.
Key Points
- Active distal hyperextension increases pull-out force by 2.76x for objects 1-20 mm thick
- Hybrid fingertip combines rigid nail-mounted force-torque sensor with soft capacitive tactile array
- Validated on automated SD card extraction and insertion — a benchmark for fine manipulation
Why It Matters
Enables robots to reliably handle thin, flimsy objects like SD cards and cables, expanding precision assembly and service robotics.