Lens cap holder for camera straps, 52, 58 and 67 mm
Three sockets in a row on a plate that threads onto the camera strap through two slots. Each socket has the lens's thread opening and a groove where the cap's ridge lands, so a cap clicks in the same way it clicks onto the lens.

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Specifications
| Sockets | 52, 58 and 67 mm filter threads |
|---|---|
| Strap | up to 38 mm wide, through two slots |
| Plate | 3 mm |
| Material | PLA or PETG |
Printing
- Prints front face down, exactly as exported: no supports.
- Print the fit-test ring first; if the cap is loose or tight, change the grip by 0.1 mm.
- PLA is fine for push-in caps. Split tabs and the screw-in thread like PETG better.