This 3D printed part covers the rear of the raspberry pi camera module. It fixes to the robot face with three No 4 self tapping screws. I countersunk the fixing holes carefully with a drill because my screws were a little short. Fiddling about making parts fit is time consuming, but it's part of the fun when building custom items.
You can download the .stl or Freecad files here;
Don't have a 3D printer? If you are in the UK you cano order one from civrays via makexyz.
Please check out the other 3D parts;