Such is the case with 3D weapons manufacturing. Defense Distributed has been offering sets of computer files for free through their DEFCAD online library. Their progress is documented below in a series of video updates the company has posted.
The latest from Defense Distributed is in honor of gun-control proponent, Dianne Feinstein. Founder of Defense Distributed, Cody Wilson, states his reasoning for offering their latest creation:
“We want to commemorate a personal failure of Feinstein’s to take away semi-automatic weapons,” Wilson, who is also a law student in Austin, Texas, told The Huffington Post. (Source)