Hey! I was just playing with OpenSCAD and customizable stuff. I used to make this kind of bearing for some prototypes some time ago and it used to be quite useful. This is a customizable parametric version to let your imagination fly away.

I think the best way to test parametric designs is pushing the limits...

For some serious prototyping works quite well with good Airsoft balls, but if you want to experiment you can go from that, to marbles, cherry tomatoes or whatever spheric object.

Id leave here some of the versions I made, but note that are adjusted to my sizes and printing settings, proceed with caution, better make your own!

Disclaimer: No vegetable was harmed while testing this design (all the tomatoes went straight to a salad).

Creality

Ender 3 Pro

No

No

0.28

10%

The customizer ofers a set of options that you can play with. I should say that the hole lid of the bearing is not the best, most if the bearing is small. It can be difficult to remove later, take it into account.

Theres a "rounding" option that will let you save a bit of material when doint some random bearing tests (using maybe...tangerines?).

Usually it does not need much post-printing. If you see it goes a bit rough just use it more: the more you use it the smoother it will work.

Don't forget to post your version of this with some other (crazy) stuff!

You can also find this model and others on github.