MarbleMazeCase CMF
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This is a custom-designed CMF case featuring a built-in marble maze on the back - with narrowing walls— fun to play.
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Updated at source:
Model information
- Source
- Printables
- Category
- Board Games
- License
- Creative Commons — Attribution — Noncommercial
🌀 Marble Maze CMF Case – Playable Phone Back!
This is a 3D printable CMF phone 2 pro case with a fully integrated marble maze. Thanks to the tapered (narrowed) upper geometry, the ball stays inside and doesn't fall out – even when tilted.
🎮 Fun:
You can guide a small steel ball through the maze using gravity – it's part puzzle, part fidget toy.
🖨 Print Tips:
Layer height: 0.2 mm
Use 2 colors (optional) for contrast between the case and maze
Print with flat orientation (as shown in slicer screenshot)
No supports needed
💡 Designed in Onshape, exported as STL.
🤩 Insert the ball while print pause (see the gcode underneath) and continue printing
🧪 Tested with 3 mm steel balls – works great!
Have fun!😁