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 front bed mounting holes on the Y carriage, which is available because I have converted to 3-point bed levelling. If you're waiting for a sign before converting, then maybe this is it! The mount is stable as-is, but would be even more stable if it was attached to a rigid third-party Y carriage (preferably one that has a proper 3-point levelling hole halfway down the bed).

The camera is pointed right at the center of the build plate, and held rigid so that your time lapses come out nice. The ca