This is a remix based on Lorduncan's version (http://www.thingiverse.com/thing:1789079), modified to allow the support to be screwed into the eyeball, as per the support's provided by Gael in the NEW eye mechanism (http://inmoov.fr/eye-mechanism). The holes in the bottom of the plate are perfect to use 10mm self-tapping screws to attach the eyeball to the support.
Also I reduced the pillars to allow the original eyeball pieces from Gael to be used without modification.
I've only included the left eye, as a Raspberry Pi can only take one Pi Camera. The other eye will use a standard web-cam as per Gael's design. I wanted two different cameras, partly because I had a Pi camera laying around, but also because I want to see how different types of camera could complement each other. One day I think it would be useful to have an IR sensor in one eye, or the Pi low light camera.
I used PETG for the example in the pics.