It's nothing to do with being worn out or not :giggle: Unless you have a bolt and nut (where it is possible to rotate bolt's head to a desired...
I am not surprised :thumbup: BTW - perhaps I should have changed the title to: "expired certificate"
[ATTACH]
https://wiki.freecadweb.org/Import_from_STL_or_OBJ if you share your .obj I'd be happy to have a go...
well... I am here, because of you :D pointing a link to P1MRC forum...
Thank you guys :thumbup: All seems to be working fine. Off to explore the forum...