Print-in-place fidget ring

Have fun with this fidget ring! 

I uploaded many sizes (inner diameter in mm from 12.3mm for kids to 24mm for big fingers, please use the conversion table below in case you are used to your local ring sizes and use the closest value in millimeter) and three ring widths ("normal" - as seen in the picture, "thin" and "wide"). The STL filenames have both the style (normal/thin/wide) and the inner diameter in mm in the filename. For conversion of ring sizes, please use the “Ring size conversion table” at the end of this instructions page.

Full customization

To customize your own version (size, width, thickness, gap, etc) use the makerworld online customizer or install OpenSCAD on your own computer and follow the customizing instructions below or follow these in depth instructions.

Printing

In case the inner ring does not stick well enough to the build plate, use the STLs in the folder “OnlyIfYouHaveProblems__Big_inner_Ring_for_more_adhesion”. It has a thicker inner ring, but also more area on the build plate.
In the unlikely event that the ring is fused together(e.g. possible when your printer is not calibrated properly and has overextrusion), use an STL from the folder “OnlyIfYouHaveProblems__Ring_with_extra_wide_clearance”. It has not 0.7mm clearance but 1.4mm(!) clearance.
 

Thanks go out to aubenc for the knurledFinishLib_v2 and to Betsy Weber for her fotos of the multicolor rings.

If you could take a picture of an actual print, please “add a make” and attach the picture. - I am curious to see your uses in the wild! Please let me also know how you rate the design.

Unfortunately, the uber fidget ring was deleted due to a design claim, so its no longer available.

If you like it, you can check out the dual fidget ring:

And the discrete (as in discontinuous/quantized) fidget ring:

And the discrete fidget ring - Mark II:

Then the slim fidget ring:

The Longitudinal fidget ring:

And the geared fidget ring:

The alternative geared fidget ring II:

And there are bracelets available as well:

Please have a look at all my customizable creations. 
There are more configurable-text-based creations, the meme picture frame, the multi-line label, gadget display stand, sweeping name plate, bunting banner, customizable text box III, pyramid text, name plate, Customizable text box with lid and round text. Have also a look at my configurable pack of dogs, rabbits, reindeers and santas. There are also useful coat hangers and finger toys.

There is functional furniture as well:

Or check out the 1250 keychain name tags:

Print instructions

You can print it without any support, and it prints very fast.
Standard settings will be fine, like infill of 20%, layer height of .2mm, 2 perimeters.

After printing, turn the ring a few times to make it spin better. 

Ring size conversion table: