Fidget Spanner Spinner Hand Toy

thingiverse

Everyone keeps churning out similar variations of spinners, so here's something fresh. For those who prefer smoother edges, there's also a variant with rounded corners. This tiny spinner uses high-quality 625zz bearings with an outer diameter of 16 mm and a thickness of 5 mm. Its compact size makes it especially appealing to kids, allowing adults to swing it around in one hand when holding it at one of the outer bearings. The spanner is a 9 mm size and should work fine if you don't apply too much pressure or have it printed in steel. You can fill the holes in the bearings with caps shaped like 'bolts' and 'nuts' to greatly enhance its fidgetability. Since the smaller caps are also 9 mm, you could connect multiple of these spinners together. The nuts/bolts come in two sizes: a smaller one measuring 9mm and a larger one measuring 10mm with increased thickness, making it ideal for the center bearing due to its flat surface compatibility while spinning. Print Settings Printer Brand: FlashForge Printer: Creator Pro Rafts: No Supports: Doesn't Matter Resolution: 0.1 mm Infill: 100% Notes: 100% infill will result in a heavier and longer-lasting spinner. For the same reason, a dense filament like PETG is ideal (PLA also works well, although this may vary between brands). In my case, the blue PLA print is heavier than the green PETG even though they have the same infill. The models come with various tolerances. The spinner itself comes in a regular version with holes that are just a tad larger than necessary for the bearings, which is the recommended one if you know your printer tends to print holes too small. The 'tight' models have holes slightly smaller than needed, offering an extremely snug fit for the bearings if your printer is highly accurate. The nuts also come in three different tolerances: 0 (exact), 1 (with 0.1 mm extra hole diameter), and 2 (with 0.2 mm extra). These small parts are quick to print anyway, so it's a good idea to print them all at once and see which one fits best. If you're printing with a filament prone to shrinking after cooling down, like ABS, you might want to upscale the model by a fraction of a percent to compensate for shrinkage. Post-Printing Some sanding may be necessary to fit the bearings and the 'nuts and bolts' if your print isn't perfect. Avoid using excessive force when pushing the bolts through the bearings. Ideally, the bolt axle should be exactly 5 mm thick, providing a snug fit without having to push hard on the bearings. You can sand the axle and check with a calliper or micrometer until it is exactly 5 mm diameter or slightly less. Updates 2017/07/09 Replaced the models with v2 version, which should be almost perfectly balanced (if printed with 100% infill). Provided a larger end cap to be used as center cap, allowing spinning on a table. Also, the caps now have a better clip mechanism that snaps in place.