Sethi3D AiP A3 control knob

My printer's control knob was constantly falling off, so I made a new one. It just attaches to the rotary encoder to let me use the native user interface. This is an old fashioned printer, about 10 years old, recently bought second hand from a friend. Filament from 3dfila.
https://www.sethi.com.br/blog/impressora-sethi3d-aip/
https://3dfila.com.br/produto/filamento-flexivel-preto/
https://3dfila.com.br/produto/filamento-abs-preto-sepia-premium-175mm/

I could have used the gcode provided by Sethi3D for the replacement part, but I didn't want to miss another good excuse to mess around on FreeCAD and test printing with something less forgiving than PLA.

Print settings:
Layer height: 0.3mm first, 0.2mm others
Speed: 10mm/s first layer, 30mm/s other layers
Bed temperature: unheated with TPU, 110°C with ABS
Extruder temperature: 220°C with TPU, 235°C with ABS.