Do you like my designs? I would be happy if you would support me by joining my Printables club! :) (already from 3$) It also gives you access to exclusive models ;) https://www.printables.com/@Preischl3D
Or do you want a sales licence? Then you can book the commercial tier!

All models I publish are tested by me and my community before I publish them.

My next design exercise I did was Barrel Bearings.
After a few failures and a steep learning curve, I got it right in the end!
These are great fidget toys to have in your hand at all times.

The small barrel bearing is a bit tricky to print because of the small contact area, the big one is easier to print. But I was able to print both without any problems on my Prusa with the standard 0.2mm profile.
The tollerances are set to 0.25mm, which a well adjusted printer should manage without problems.

But it remains a small challenge. :)