DefCAD is a search engine and repository designed by the non-profit group Defense Distributed. It was launched in response to the takedown of files related to 3D-printed firearms (often called "The Liberator") by the US State Department in 2013.
In the evolving landscape of digital manufacturing, few names carry as much weight—or controversy—as DEFCAD. Known as the "Internet Archive for the 3D Printing Revolution," DEFCAD has positioned itself as a primary hub for files that push the boundaries of the First Amendment, open-source hardware, and personal manufacturing. But within its massive database of STL files, CAD models, and laser cutter schematics, one tier stands apart from the public offerings: the . defcad files repository exclusive