Amscope to camera module adapter

This is a double-threaded adapter to screw a camera module (C-mount 1"-32 UN 2A) on top of the trinocular Amscope extension tube (M26/0.75) you can find on models such as the SM-3TZ-54S.

The OpenSCAD file is available and all dimensions are configurable, in case you need to adjust something. It's based on polyScrewThread_r1 library (http://www.thingiverse.com/thing:8796).
There is a "correction" factor of 1.005 in the file because the printed thread was a bit smaller than specified. If you'v