Secure Collar Case for Chipolo ONE Point — Tight Fit

This is a model I designed for the Chipolo ONE Point tag, which I use on my cat’s collar.

The ONE Point is advertised as splash-proof (IPX5), but in my experience it isn’t reliable. I made this case to fit the tag snugly while keeping it relatively light—ideal for a cat, dog, or other pet.

Fit & use

The case is very tight. Align the hole carefully during assembly.

I dunk-tested it for ~15 seconds; the tag came out dry. However, this is not fully waterproof.

Print settings (Ender 3 S1 Plus, 0.6 mm nozzle)

Layer height: 0.20 mm

Perimeters: 3

Material: PETG

Supports: None needed

Print time: ~23 minutes

Battery/maintenance

Because the fit is tight, you may need to pry the case open when the battery dies (about every 6 months). Opening it may compromise water resistance. An easy alternative is to print a new case with each battery change.