Improved Fidget Spinner Caps

thingiverse

I've made a slight improvement over some of the caps I've seen available so far. To prevent them from rubbing on the bearing seals or outer ring, I added a small ridge where the bearing hub hits. There are two types to choose from - one with a concave center and one that is flat. Unfortunately, the concave cap didn't print well with PETG due to my inability to get the supports out. Other materials will likely work better in this regard. Additionally, I included three plugs for outer bearings that you can use in the spinner, which also work great as cooling towers, helping to improve the overall accuracy of the caps.