Improved, 2.0 version here https://www.thingiverse.com/thing:4489960

This is a simple embroidery hoop I designed to learn 3D designed. The thread on the screw and in the hole have a small pitch (distance between the "teeth" of the thread) so you should print this in 0.15 mm resolution for best results, although I haven't tried anything coarser. So far it's worked for holding thin and thick fabric but this is the first version and I might change it as we use it.

I included a "thread test" file that you can print to test the tread. If this doesn't work the full hoop won't either.

MK3

Prusa i3

No

No

0.15

20

The file will not fit the bed of a Prusa MK3S. I reduced the size of everything by 1% and it worked without issues.