Camera lens holder

A box to put a unassembled camera like the PS3 Eye in and screw a big filter or lens on top of it.
Currently the idea is to screw the camera on top of a piece of wood and screw this in the box.

Uses:
Threads library: http://www.thingiverse.com/thing:8793
MCAD: https://github.com/elmom/MCAD