I admire people who want to keep learning and succeed even with disabilities. My son and I took part in learning about Braille. The session was conducted by the Boyscouts near my home. I looked around Thingiverse for a generator, but did not find one.
I noticed the thingiverse customizer doesnt quite work. Download the *.scad file and open it on your computer using OpenSCAD latest build. I'm using version 2019.01-RC4.
IDEAS, CORRECTIONS, AND COMMENTS ARE WELCOMED