Raspberry Pi CS lens mount adapter

I needed a C/CS mount adapter to fit a 180x microscope lens to my Pi Camera board (v1.3) and rather than buy a whole new module with the mount for £20 or so, I decided I'd make an adapter.

I've not printed or tested this fits yet. I've also not made the inner M12x0.5 hole threaded yet, its just a 12mm diameter hole for now, but that's an extra function, I just want a CS mount for my Pi.

It uses the [threads](http://dkprojects.net/openscad-threads/) library so won't work as a Customizer, bu