3D printed parts
7 components need to be 3D printed:
Loadcell adaptors
Base
Screw
Motor connector for the screw
Main body
Extension (optional)
Lid

The dimensions of the pieces are compatible with most 3D printers. Concerning the printing settings, you know your printer the best. We got the best results using Bambu Lab with 0.4 nozzle, printing in PETG filament on lower layer height (≤0.16mm). No supports are needed.
For all the essential pieces you need around 1 kg of filament and the printing time is 2d18h46m. If you want to include the extension, you'll need 1.7 kg of filament in total and the printing time is 3d4h39m. The cost of the material depends on the filament you buy and use.
All the files are available for download here.