All of these resources are free to download and use. Of the more than 350 models, 123 are 3D printing files. 3D printable models include the Moon and Mars landing sites, asteroids (such as Bennu and ...

Users can pay to download the STL of their ... An example is this model of a 3D printable vise by Christophe Laimer. It’s a free model, but excellent documentation in a way that builds confidenc ...