
This Robotic Hand Walks on Its Fingertips
ETH Zurich researchers adapted a commercial robotic hand to crawl using its existing fingers, without adding wheels or legs.
The 818 g setup has 20 powered joints and carries its own battery, computer, and motion sensors. When one finger lifts to take a step or press a key, the others have to support the hand’s weight. The controls were trained in simulation to account for the unequal finger lengths and offset thumb.
They tested it on 14 surfaces, including grass, gravel, carpet, and metal grating. It recovered from falls in 21 of 25 trials and correctly pressed requested keyboard keys in 29 of 32 attempts without visual feedback. A separate object-pushing demonstration uses an overhead camera.
More details: https://www.automate.org/robotics/industry-insights/what-if-thing-from-addams-family-was-actually-a-robot