https://openscad.org/downloads.html
For best results open in OpenSCAD
scad/braille_keyboard_covers.scad
Tweak the settings yourself. Based on braille worldwide medical standards http://www.pharmabraille.com/
Default size is at minimum key size, you will likely want to increase this.
• Use "Text Drop Down Box Select sets" to create stls of specific character sets [all,alphabetic,numeric,symbols,functions,commands,swedish]
due to the complicated operations thingiverse might have problems rendering the whole set at once.
• The main settings to modify are Base Height, Key Size & Braille Scale.
• If you want to customise this more, all the braille settings regarding spacing and dot height are accessible if you download the scad file and open it directly in OpenSCAD
stl/braille_keyboard_covers.stl
default settings, $fn=20 All keys. Warning these are at the minimum possible size. Use OpenSCAD to increase to the size of your keyboard keys in mm.