I had a CAD model saved in my Onshape account from when I first started the project, but it was pretty badly made and I decided to redo it. If you want to look at/copy the CAD, I put it in the external links section. 

For the electronics, I'm using a Teensy 3.2 board, a 9-gram servo, and a Vl53L0X time of flight sensor. I programmed it in the Arduino IDE by copying other peoples' code and changing some stuff around until it worked.