Touched is a project by [Rebecca Strauss] that integrates servos, strings, and felt into a horrifying kinetic sculpture made up of a dozen mechanical fingers straight from a Boschian nightmare.
The fingers are made up of segments of wood articulated with the help of a small string. Each pair of fingers is controlled by a single servo, and the tips of each pair of fingers is controlled by a second servo.
After covering them in felt, [Rebecca] wrapped conductive thread around each of the fingers. When some of the fingers are touched, they all recoil as if controlled by a demon living just under a mountain of felt.
[Rebecca] brought in another kinetic sculpture using her servo controlled fingers; in the video up at the top and after the break, you can see the inner workings of this floor-mounted version. When the IR proximity sensor goes off, the fingers recoil but can be coaxed out again by gently stroking one of the phalanges.