Kinetic Mechanical 7-Segment Clock - Cam Drum Flip Display, Geneva Carries, 28BYJ-48 + Arduino

A desk clock that shows the time like a digital clock, but every segment is a real moving part. 23 square segment bars (orange front face, black sides) flip a quarter turn to switch on or off, and all of them are driven by printed cam drums - not by 23 servos. One cheap 28BYJ-48 stepper moves the minutes forward once a minute; the tens of minutes and the hours follow through two Geneva carries, just like an odometer. About 304 x 106 x 120 mm, matte black frame, open top so you can watch the dru…

♥ 0