I remixed this version because I dont have mold inserts and wanted to use it with M3 nuts.
You will need M3 nuts, M3x20 screws and black PC4-M10 pneumatic connector.
Print Settings:
Material: PETG (PLA should work too)
Nozzle: 0,4
Layer height: 0,2
Walls: 4
Infill: Gyroid 15-20%
Supports: only on buildplate (will come out after putting in the screws)
The author remixed this model.
Added cutouts for M3 nuts
usable with 19,5mm diameter tubes for the RepRack