Digital Clock v1

Konstruiert und fotografiert von Willem Evert Nijenhuis.
Hochgeladen am 12.5.2012, 17:08 von winijenh.  7 / 18

The 5 rings forming one digit can move freely on the axle they are sitting on, but with some friction, created by clamping the rings between clips. When the axle is driven by a motor, the rings will turn as well, because of the friction.