three mechanical engineering lessons on a bolt head —
Founded three mechanical engineering lessons on a bolt head models & stl files for printing
BigRedButton
Bootjevaarder
3DManufacturingHub
Inventorsquare
konchan77
CEG
jimmywasspooked
portablecomputing
MakeAnything
woong
EricCherry
konchan77
Janim
Atom's Lab
Adrian Carpenter
shiura
UWcharlie1983
Lars3D
Urheym
margyg