Star Jumper – Rubber Band Pop-Up Ball

Press it, flatten it, and watch it jump! Star Jumper is a rubber-band-powered fidget toy that transforms from a flat shape into a bouncing ball. It features star-shaped openings, small star details, and round center caps with engraved stars. The round caps act as stops to help keep the toy flat and aligned when pressed down. Assemble the printed parts, attach a rubber band, and press the toy flat. Drop it onto a flat surface to trigger the transformation—and try to catch it as it jumps! Print Settings & Requirements: Nozzle diameter: 0.4 mm Layer height: 0.20 mm Material: PLA Walls: 3 Infill: 11% Supports: No Rubber band required — supplied separately.