[@knowltonjayne]

I’m pleased to say that this model has had some user testing from one user who has requested lots of custom variants. It can now handle much larger pens, in theory up to 22 mm diameter. You will need to make the device thicker to compensate if you do this, though.

Thingiverse link: https://www.thingiverse.com/thing:4178663

Github gist backup of the code if Thingiverse is being unreliable: https://gist.github.com/scruss/2c56c9c51d28795f9c769b64b2c6a69a

Sample parameter set:

“hand_width”: “72”,
“lefty”: “false”,
“pen_dia”: “20”,
“pinkie_thick”: “28”,
“strap_width”: “25”,
“thumb_thick”: “35”