The Saturn Spinner

thingiverse

This is a handheld spinner that can be spun with your hand or fingers, providing endless fun. Measuring just shy of 3" in diameter when spinning, it features a robust design that incorporates a 608 bearing and utilizes 9/16" individual ball bearings as counterweights to ensure stability. Spin it between your fingers or use it as a top - my toddler loves it! I envisioned a spinner that could be rolled between fingers with ease, so I began by designing pads that form a perfect sphere. From there, I crafted a spinner around the pads, carefully preserving the entire sphere while maximizing its potential. This unique design strikes a perfect balance between finger-friendly size and angular momentum. If you prefer a smaller or larger diameter, keep in mind that it will affect the spin's performance. Too small, and it loses momentum; too large, and it bumps against your hand. But this design hits the sweet spot - allowing for smooth rolling between fingers while maintaining sufficient angular momentum. For those who want to try an alternative version, I've uploaded a model without cutouts for the bearing balls. Feel free to download it and experiment with different counterweight configurations! This design was created and rendered using Fusion 360, ensuring a precise and functional result.