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Nested spheres
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A truncated sphere free to move but captive in a larger truncated sphere
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Toys & Games
- License
- Creative Commons — Attribution — Noncommercial — Share Alike

Just for fun - no known practical, educational, or artistic merit.
I've printed it successfully two ways:
- 0.6 mm nozzle, 0.2 mm layer height. For this it needed supports to keep the tops of the side holes from sagging and/or curling. Use a support angle of 37° to avoid generating unnecessary supports for the inner edge of the top hole.
- 0.4 mm nozzle, 0.15 mm layer height. For this print I didn't need supports.
In both cases I used a matte PLA at a reduced temperature of 195 °C to reduce curling (and to avoid stringing, in the case of wood filament). Suggest printing with all perimeters.