BOM (not affiliated):
https://a.co/d/dOy1gLw - M3 countersink screw
https://a.co/d/hLHdPuo - M3 threaded inserts
https://a.co/d/0zlFWMG - 1/4" threaded inserts (tripod mount)
https://a.co/d/5Ct8daE - M3x16mm thumb screw
https://a.co/d/jlmLTSx - Peep hole / viewfinder
The author remixed this model.
1. Downsized to 6x12
2. Removed the dark slide mechanism
3. Pinhole instead of a lens mount (40 mm focal length, includes 67 mm filter thread)
4. Replaced some 3D printed knobs with thumbscrews
5. Used brass inserts instead of nuts
6. Printed an adapter to use a peephole as the viewfinder (happens to have roughly the right FOV)