Spherical Die or Chaotic Cat Toy Ball
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2-part sphere with octahedral chamber. Behaves as cubic die when ball bearing added! The cat loves it too!
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Toys & Games
- License
- Creative Commons — Attribution
The STL file only contains one piece, which you need to print twice. The octahedral chamber inside has 6 vertices, and so causes the ball only to land on one of 6 “sides” when a weight/ball bearing is added inside! If you want, you can draw numbers on the outside with a pen and use it as a standard d6/cubic die.
I unintentionally gave this to the cat one day, and he loved it!
I used PLA. NO SUPPORTS NEEDED. Print at 100% density to make the most “fair” dice-- so that the density is [constant] throughout the solid parts. The cylindrical holes around the outside are indexing holes sized for very short pieces of 1.75mm filament.
For a cat toy, it could be fun to scale up and maybe add multiple weights/bearings; just note that the indexing holes may not work exactly as expected any more.