Strength is everything
On a small tag the loop takes all the stress, so keep its wall a couple of millimetres thick and print in a tougher material. Short names help too — a single first name or initial prints far stronger than a long word squeezed small.
Make it readable
A bold, rounded font raised above the backing gives a clear two-tone tag that’s easy to read at a glance. Round off the outline so there are no sharp edges near your pet.
- Keep the loop wall around 2 mm or more; the editor warns you if it is too thin.
- PETG resists moisture and knocks better than PLA — a good pick for a collar tag.
- Short names print strongest and stay legible on a small tag.
Raise the letters for a two-tone look, then export a 3MF or split-STL pack if you want the name and backing in different colours.
A note on identification
A printed tag is a lovely personal extra, but for identification rely on a proper engraved ID tag and your pet’s microchip. Treat the printed tag as decoration rather than an official ID.