Geared Tri-fidget spinner
thingiverse
UPDATE 1/23/17 Added an option for a flat finger cap, simply print two of the flat finger cap STLs and skip the shoulder since they're built-in. Just another fidget spinner design, this one utilizing a 22mm skateboard bearing with a finger cap tailored to fit an ID of 8mm. Two models are available, one for ABS and another for PLA. These designs are tight, so I recommend printing everything at 100% infill and using something flat to press the bearings into place. A vise works great if you have one; otherwise, a hammer handle does the trick just fine. The shoulder/finger caps assemble tightly as well, making it ideal to use channel locks to snap them together.
With this file you will be able to print Geared Tri-fidget spinner with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Geared Tri-fidget spinner.