Deck Case with Friction‑Fit & Carabiner Lock for Playing Cards

A 3D‑printable, two‑piece case that snugly holds a full 52‑card deck in its original packaging. The halves slide together via friction and can be locked using a carabiner threaded through the top hole—ideal for secure storage and on‑the‑go portability.

🔧 Key Features

Friction‑fit interlocking halves—no glue or hardware needed

Top hole for carabiner to prevent separation

Compact profile tailored for a standard card box

Clean, minimal‑part design—simple print and assemble

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🧷 Print Settings Used

Printer: Creality K1C, a CoreXY model capable of up to 600 mm/s with enclosed chamber, auto-leveling, AI camera, and tri‑metal nozzle support for a wide range of materials  

Filament: Elegoo Rapid PLA+ (PLA Plus) noted for enhanced fluidity, toughness, high flexural modulus, and precise diameter control (±0.02 mm) — supports speeds up to 600 mm/s  

Layer height: 0.20 mm

Infill: 15% crosshatch pattern

Walls (perimeters): 3

Top & bottom layers: 3 layers each

Support & Adhesion Strategy

Supports: PrusaSlicer’s “Organic supports” enabled for overhangs above ~30°

Orientation: Each half printed twice—once front-down, once back-down—for best surface finish and support contact

Bed adhesion: Mouse‑ear brims (localized brim ears) used on all corners for stable adhesion with minimal cleanup

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🧰 Print & Assembly Notes

Setting Details

Tolerance gap ~0.2 mm—adjust per your printer calibration/filament
Material recommendation Elegoo Rapid PLA+ (as used) or standard PLA; PETG/ABS for more durability
Post‑processing Light sanding optional for improved fit; generally no cleanup needed
Final assembly Slide hemispheres together, loop a lightweight carabiner through top hole

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ℹ Usage Tips

Use a lightweight carabiner for minimal bulk

If fit is overly tight, lightly sand mating faces or slightly increase tolerance

Clip the assembled case onto gear loops or backpack straps for easy transport

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