Customization Instructions:

1. Install OpenSCAD
2. Get latest version from https://github.com/X-Illuminati/glyphinator
3. Copy quick_response-example.scad
4. More API details in barcodes/quick_response.scad

Dualstruders / Multimaterial: I have no idea if this will actually print. May need to scale up feature size to get reasonable performance. I suspect the result will still include a wipe tower that is 3 times the size of the actual model. Create one model with parameters mark=1, space=0 and a second model with mark=0, space=1 (and/or quiet_zone=1).