AirTag key ring holder hard shell snap case
A two-part hard shell that closes around an Apple AirTag (31.9 mm diameter, 8 mm thick) and hangs from a key ring, keeping the white plastic and steel back from scratching against keys. The pocket is 32.2 mm across and 8.3 mm deep, the two halves snap together with a 0.15 mm lip and four small tabs, a 6 mm ring hole is reinforced to 3 mm thick, and a 10 mm speaker opening keeps the chime audible. The case is 38 mm across and 11 mm thick and both halves print flat.
Snap-fit holders downloaded for another printer either never close or fall apart in a week. In SpeakCAD you give your printer tolerance and pick PETG or TPU, preview the case free in the browser, refine the snap in the chat, then download the STL and print a set for every key ring.
Create a two-part AirTag key ring case 38 mm in diameter and 11 mm thick with a 32.2 mm diameter, 8.3 mm deep pocket, four snap tabs with 0.15 mm clearance, a reinforced 6 mm ring hole 3 mm thick on a 5 mm tab, a 10 mm speaker opening and 1.5 mm walls.