A recent Federal Court case in the United States saw a judge rule it illegal to put blueprints for 3D-printed guns on the internet, CNN reported last week.
Cody Wilson, the founder of Defense Distributed -- the company prevented from publishing plans by the court -- told CBS This Morning that while attorneys-general, lawyers, and courts decide the law, it is too late to stop the proliferation of 3D-printable weapons.
"The guns are downloadable, the files are in the public domain, you cannot take them back," he said.
Defense Distributed was sued by 21 states to prevent the plans from appearing online.
Beyond firearm production, 3D printing was used by Newcastle University in the UK to create replacement corneas earlier this year in research that could one day led to corneal transplants.
The process mixes stem cells from a healthy donor cornea with alginate and collagen to create a "bio-ink". This bio-ink is extruded from a low-cost 3D bio printer in concentric circles to form the shape of a human cornea within 10 minutes.