Just made some small cosmetic changes to this fidget ring that I liked. The spinning part had too much wiggle room for my liking, so I cut off about 0.5mm on the height. This gives it enough room to spin while still keeping it aligned. Then I rounded off any sharp edges on the casing of the spinning part, which makes it a little more aesthetically pleasing and comfortable to wear. 

For users:

• I used 0.2 mm layer height. The knurled pattern did not give my printer any trouble, but I am wearing a larger ring size so it might be easier to print than a small one. 

• This model has a 20.57 mm (size 11) diameter which can be scaled to fit your own size. [Example in the pictures]

• Sanding down the Z seam can help it spin better.

• You can wear it on whatever finger, but I find the index finger the most comfortable place to wear it because you can spin it with your thumb. 

• There is a tight fitting shell and loose fitting shell. I made the tight one hoping glue was not needed, but personally didn't have much luck. Feel free to try it out yourself.

• Coincidentally, a contest for ring holders just came out. Take a look if you want a stand for your rings. [https://www.printables.com/contest/386-ring-holders](https://www.printables.com/contest/386-ring-holders)

Edit 1: Added some extra spinners but have not printed them out. They came from the creator's Thingiverse page which has more features and customization. [https://www.thingiverse.com/thing:188275](https://www.thingiverse.com/thing:188275)