screwable base for 20x20 aluminum profiles. Very tight with only 0.1mm tolerance on all edges. So exact print results or alternatively good old force is needed.

More 20x20 stuff

As I do a lot with 20x20 profiles, you may be also like some of my other 20x20 projects. Find them here: https://www.printables.com/de/@extrawitz_1031389/collections/843219