Everyday fixes

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. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.
Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
1

Open

Create a free account (no card) and open this ready-made model in SpeakCAD. It renders in your browser, on your phone or computer. It is not a fixed STL: every dimension stays editable.
2

Adjust

Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.
3

Print

Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).

Dimensions of the ready-made model (editable)

ParameterValue
overall diameter38 mm
overall thickness (both parts assembled)11 mm
AirTag pocket diameter (nominal)32.2 mm
radial clearance for pocket0.15 mm
pocket depth8.3 mm
wall thickness1.5 mm
base part height (holds pocket)6.5 mm
tab width6 mm
tab protrusion height1.5 mm
tab thickness1.2 mm
wall thickness around ring hole3 mm
width of the tab strip (as requested)5 mm
how far the tab sticks out from body10 mm
individual perforation hole1.2
Measured values from the ready-made model; change any of them after opening it, or in the preview above.

Example prompt

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.

This prompt comes with the ready-made model when you sign in, in case you want the AI to redesign it (3 credits a redesign); changing numbers in the viewer is free.

Fit notes

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 in the browser, refine the snap in the chat, then download the STL and print a set for every key ring.

Also searched as: airtag keychain holder stl, airtag key ring case 3d print, airtag hard shell holder 3d model, airtag keychain case 3d printed.

Questions people ask about an 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.

Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.

On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.

A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.

Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.

No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.

Open, resize and print your AirTag key ring holder hard shell snap case

Nothing to install. Open the ready-made model in a free account, change its numbers in the viewer or shape it with the hand tools (a hole, a cut, rounded corners), then download the STL or 3MF free, or sliced G-code with credits.

Looking for a finished design by a maker? Check the marketplace, where makers sell rated models for credits.