Automated Photogrammetry Jig

This is the final version of my automated photogrammetry jig as explained in my YouTube videos.

The revised design means the two main parts fit onto a Mars 2 buildplate. I've also included the original base which can be printed on an FDM. (Note, if printing the carriage on and FDM to may have to sand the underside of the circular guide smooth)

I'm a relative newbie to Arduino, so don't make fun if my programming is scrappy and untidy :P

Overview : On power up it moves to activate the switch and find its start position. The variables STEPX and STEPZ tell it how many times you want it to stop on a circular rotation (X) and how many vertical angles (Z).
It will rotate in steps, sending a signal to activate the camera after each step - the programming works for Nikon cameras using the infra red remote, or any camera that can be activated by closing a switch (eg, my Fuji takes a picture by closing the circuit with a 12k resistance).
After a full rotation it moves to the next v