Hey, this is a Fidget Ball that changes shapes and colors when you throw it in the air. It's a variation of the Uekitahedron I did with Keishiro Ueki that I invented.

You need:

• 4 Left Pieces
• 4 Right Pieces
• 12 Connectors There is also an "All" Plate that you can print. It has everything you will need in one place. Multicolor files are also included, as well as a tool that can help with assembly.

Print Settings: The individual pieces are print-in-place—no supports required. A brim may be helpful depending on your printer. This model is a little filament-dependent. Use a filament with a smooth surface that slides well against itself for best results.

Assembly: I made an assembly video here: https://youtu.be/s9VF8Y-3U0Y. An assembly PDF is included in the download for additional guidance.

Troubleshooting:

Connectors Break:

• Alternative: Skip connectors and use glue instead.
• Best Fix: Print connectors in a stronger material like PETG, ABS, ASA, or Nylon (instead of PLA). If you only have PLA, adjust print settings—try adding more walls or increasing infill.
• Bonus: The "Troubleshooting" folder includes stronger connector designs as an alternative to the standard ones in "Files."

Connectors Are Too Long or Too Short:

• Solution: Scale the connectors in your slicer until they fit snugly into the holes.

It Gets Stuck and Doesn’t Transform:

• Cause: The smoothness of the transformation depends on the quality of the printed hinges.
• Fixes:
  • Switch to a different filament with better sliding properties.
  • Use the files in the "Troubleshooting" folder, which have increased tolerance for looser hinges.
• Note: Slight variations in filament extrusion or printer calibration can affect fit. Even I encounter this sometimes! For consistency, print all parts with the same filament brand and type.

Technical Data: The single-color version uses 125g of filament and prints in ~6.5 hours. The Filament I used is Joel's Highfive Blue HTPLA by Protopasta and Partly Sunny Yellow Multicolor HTPLA by Protopasta