Fidget spinner with 1/2 inch bearings

thingiverse

created in Tinkercad. It is a simple design that is great if you do not have small hands. It has a nice weight to it and enough mass for a decent spin. a common 608 skate bearing is used in the center. The outer bearings are nine (9) 1/2" stainless ball bearings. Mine measure 12.67mm and the hole is designed to be tight at 12.7mm. I press fit carefully with the bearings heated up. I used my toaster oven, be very careful they are hot and will burn you. The center bearing snapped into place with a little bit of force. I have center caps designed that are decently thick, but have not test printed them yet many other spinners have useful center caps that can be used, as long as they are designed for a 608 bearing. I added file "short" that is not the height of the bearings so you will have to center then yourself. It will print easier and be more hand friendly. Also added are UNTESTED snowflake grip caps. Just added file "spacer" to help in centering balls in the short one I'd love to see your makes!!! comment with any questions, I'll try to respond. Print Settings Printer: Monoprice Maker Select Mini Rafts: No Supports: No Resolution: .1mm Infill: 70-90 Notes: I used high infill because I knew how I was going to fit the bearings. My printer bridged quite successfully but you may need to use supports. It is up to you to know the capabilities of your printer