Customized Rings for Mini ish Cryptex (improved design)

Customized Rings for Mini ish Cryptex (improved design)

This thing does NOT include all files for the original design. Just go to http://www.thingiverse.com/thing:48583 for building instructions and download.

The original Mini ish Cryptex (improved design) provides two rings with A-M and N-Z.
I wanted to use different combinations of letters, to have it look more difficult.

I added two examples for a mixed (but still ordered) alphabet.

Sadly, the Thingiverse Customizer does not allow for imported STLs.
So for now, you'll have to download this (preferable the Download All Files zip) and start up in OpenSCAD yourself.
Don't be afraid of source code, it only looks scary :)

All you have to do is change "ringtext" in the file, and press F6, then File - Export - STL.

You may encounter an error like "CGAL error in CGALUtils::applyBinaryOperator" or something like this, and I don't know where this comes from. (Any help is appreciated)
Try rotating the chars around (like