Raspberry Pi Camera mount for Prusa i3 MK3 (and modified version for MK2/MK2S).
Uses camera case designed by PrintCentral (https://www.thingiverse.com/thing:1646474) but instead of ball connection I use screws to connect parts. You can still point it anywhere (rotate cam up/down, left/right) but it holds better.
You need one M3 and one M4 screws (both about 18mm lenght, you should have spare if you bought a kit version of Prusa i3 MK3). No zipties needed!
To mount the holder on bed frame of MK3 you have to remove the front left screw from the bed and a spacer (spacer will go through printed camera holder). You can also make loose three neighboring screws. Some force is needed to push camera mount on the frame - spacer must be aligned with the hole in the frame.
Recommended print settings (Prusa Slic3r):
ABS/PET (dont use PLA - it is too close to heatbed)
Infill: 20% Cubic
0.2 layer hight
No support (there is a tolerance for bridge print to fit the frame)
Detect bridging: ON
Auto cooling: ON
Presliced GCODE for MK3 is included (ABS, 0.2 layer height).
Added looser version (if you have problems to slide it on the frame).
Added longer version.
Added holder for Prusa i3 MK2/MK2S.
There are 2 versions to print (different print orientation). Version 2 is harder to break but you have to drill (clean) the hole for the nut after.
Other printed parts (camera case, knob, etc.) are the same as for MK3.
For mounting just make loose screws in 3 corners, lift the heatbed a little bit and slide it on the frame.
Looser and longer version fix. (Y frame mounting part was too long).
Update 5 (2019-08)
Added holder for MK3S (and MK3S with MMU2S) that does not colide with inclined ventilator.