Super-compact i3 bed-mounted Raspberry Pi camera

This may be the most compact way to mount a camera to the bed of an i3-style printer without having it collide with any part of the printer, and without requiring a large amount of space in front of the printer either. I designed it to fit inside the 25 mm (1 inch) of free space that I had between the door of my enclosure and the front of the i3's bed when it is pulled fully forward.

[Watch an example time lapse here.](https://youtu.be/OGWNwNAYO58)

The camera base attaches to one of the fr