The laser clock.
This is a mash between a classical clock, mad laser pointers, 3D printed numbers an oil canvas and a rarely used way to show time. This project started years ago and has gathered a lot of dust since its first outing on Arduinos homepage. But now it is finished and hanging on the wall showing time as is expected of a clock.
The major difference to other clocks is that the clock arms are made from a stream of photons delivered from two central lasers mounted on stepper motors that are controlled by an arduino nano which again gets the time from a RTC.
If you need further details please contact me but how you build your copy of this clock is basically your problem. If you do build one please show me a copy maybe you have better solutions than me.
Best regards Stefan