A fun little fidget toy! Try doing a filament swap halfway through the print to emphasis the positions and patterns of the pieces.

See here for video: https://youtu.be/5Jdjr91qIQI

See here for stable download: https://social.thangs.com/m/605961

This is a print-in-place design. Once the print has fully cooled, release each joint with a gentle twist. Repeated twists will smooth the inner surface and allow for smoother motion.

A “round” and “octagonal” version is included. Both have the same inner mechanism, but the octagonal is easier to print because of the flat bottom surface. To print the round version, I recommend raising it of the print surface about 3mm and building tree support underneath to support the contoured bottom surface.