Apparently, Autodesk Fusion 360 performs censoring of some 3D models.
regulations
US Imposes New Export Controls on Advanced Metal 3D Printing Technologies for National Security
US authorities have introduced immediate controls on the export of a number of advanced technologies, including certain additive manufacturing processes.
Ghost Guns and 3D Printing: US Supreme Court Sets Precedent in Recent Ruling
A ruling in the US Supreme Court involved 3D printing.
International Plastics Conference: How a Global Treaty Could Impact 3D Printing
There may be significant changes in the way polymers are made and used in future 3D printing systems.
Could Desktop Resin 3D Printing be Affected by Regulations in the Future?
There could be a massive problem for desktop resin 3D Printing in the future.
US Government Changes Rules For 3D Printed Weapons
Legal changes suggest the market for 3D printed weapons may soon shrink in the United States.