X4 Cults3D X4 Case with Magnet Ring Slot (TPU Folio)
Folio-style TPU case with a built-in magnet-ring slot that keeps the ring in place, plus grooves for page-turn buttons.
Free 3D Print Files
Nine free X4 case files on Printables, MakerWorld, Thingiverse, and Cults3D. Grouped by job: magnet mount, slim carry, or full-body. PETG for most. Nothing for the X3 yet.
Every file here is free. You need a printer and filament. Plan 2–4 hours per case. No X3 case files yet.
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Keeps the X4's back magnet working so the reader still sticks to a phone.
1 design →
X4 Cults3D Folio-style TPU case with a built-in magnet-ring slot that keeps the ring in place, plus grooves for page-turn buttons.
For phone-back carry. The ring-slot folio is the only file that locks the magnetic ring into the case. No adhesive. The ring does not slide.
TPU flexes and soaks hits. PETG is stiffer and scratches less. Both work. Pick what your printer handles.
X4 Printables Most-downloaded X4 case on Printables. Clips over the official protective case to add grip and protection.
X4 MakerWorld Side-sliding X4 case singled out as a community favourite in the unofficial X4 FAQ.
X4 Printables Flexible TPU X4 case that prints without supports; heat-treat the closed lid for a perfect fit. Includes a PDF guide.
X4 Printables Reversible X4 case: face-up to read, flip face-down to protect the screen in transit. PETG, no supports.
These designs close over the screen edge and cover every port and button.
X4 MakerWorld Multi-part snap-together case covering every button with a raised screen lip. 1,600+ downloads. Tuned for Bambu Basic/Matte PLA.
X4 Thingiverse Three-part print (front, back, 360° hinge) that folds completely flush and snaps closed.
fusselich's full-body case has 1,600+ downloads on MakerWorld, the highest count on this page.
A snap-fit LED bar for the X4's top edge, not a case. Parts run about $5 to $10. No soldering.
X4 MakerWorld Snap-fit 4-LED bar for the X4. Free 3MF: print the housing, add an LED board, USB-C module and LiPo. ~$5–10 in parts, no soldering.
Download the community reference model first. It's a caliper-measured model of the X4 body: ports, magnet holes, button cutouts. Drop it into CAD and build around it.
X4 Thingiverse Caliper-measured 3D reference model of the X4, the base file for designing your own accessories.
Pick filament before you print. The wrong one cracks, or flexes off the X4.
| Material | Rigidity | Best for | Notes |
|---|---|---|---|
| PLA | Rigid | Slim snap-on cases | Easiest and cheapest. Fine indoors. Brittle in heat or drops. |
| PETG | Semi-rigid | Most cases | Tougher than PLA in drops and heat. The usual pick for X4 cases. |
| TPU | Flexible | Folio and full-body cases | Absorbs hits. Slower to print, and it wants a direct-drive extruder. |
X4 files live on four sites.
| Platform | X4 models | Best for |
|---|---|---|
| Printables | 15+ | Most organized. Best download stats. Prusa crowd. |
| MakerWorld | 27+ | Bambu Lab printers. Highest download counts. |
| Thingiverse | 5+ | Older files. Less maintained. |
| Cults3D | 3+ | Fewer files. More one-off designs. |
For most owners, fusselich's X4 Full Body Case on MakerWorld (1,600+ downloads) covers every surface, with a raised screen lip and port covers. For less bulk, the Osaka System clip-on on Printables is that site's most-downloaded X4 case. For phone-back magnet mounting, the Monke CAD ring-slot folio on Cults3D is the only design with a built-in ring pocket.
PETG is the usual pick for most X4 cases. It takes hits better than PLA and holds up in a hot pocket or car. PLA works for snap-on clips, but it can crack or warp in heat. fusselich's full-body case is tuned for Bambu Basic or Matte PLA. If you print on a Bambu, follow that file.
None yet. Designers have been printing for the X4. The closest start is the Zorian22 X4 reference model on Thingiverse, which shows how they measured the body. You would repeat that work for the X3. X4 files will not fit.