Split Flap Clock

## Check out the updated version [here](https://www.thingiverse.com/thing:4533886). Added mechanical endstops for reliability and includes finished driver code.

Fully printed split flap clock.

You'll need some M3x10mm bolts and lock nuts to hold everything together. 3 28BYJ steppers drive the displays, with ULN2003 drivers, all connected to an Arduino with an RTC module.