CNC milling
On the effects of prohibiting dangerous files on the Internet
New South Wales (Australia) recently enacted a new legislation to regulate gun control with the Firearms and Weapons Prohibition Legislation Amendment Bill 2015. It is the first of its kind in that it tries to control digital fabrication of firearms, it aims: "to create a new offence of possessing digital blueprints for the manufacture of firearms on 3D printers or electronic milling machines".< href="http://www.legislation.nsw.gov.au/bills/docref/5bb4f02b-1f1e-48b2-aa93-955574e699f6"> Source (PDF)