All Australian states and territories ban 3D guns, but only some jurisdictions like New South Wales, Western Australia and Tasmania make it an offence to possess blueprints.
Experts are calling for retailers to play a greater role in choking the supply of 3D-printed guns in the wake of the Bondi shooting
Gun control groups are pushing for more laws that ban the importation of 3D printers if they do not have pre-installed software blocking firearm parts from being manufactured
Retailers offering 3D printers or 3D printing services would report customers suspected of building 3D-printed guns to the authorities under fresh calls for corporate Australia to play a role in thwarting access to the deadly weapons

How would a 3d printer know if its a firearm?
Next up normal ink printers are not allowed to print bad jokes
The only way I see is through permanent surveillance. Otherwise there’s probably an infinity of ways to cut up a plastic gun that would fool a machine
Two ways. The first is to dramatically increase the price due to added computing power because the device would make the determination itself with a matching database. This is probably not realistic.
The second way would be an always Internet connected device that checks your prints against an online database. This would be more practical and companies would probably love the idea of being able to spy on whatever you print.
Fortunately for the second scenario, I think avoiding that might be as easy as going into blender, adding a pointless protrusion or two and then renaming the file
People looking to ban things don’t actually care if there is a work around, as long as they feel good getting it banned.
Unfortunately for the second scenario is that it also gives someone else a log of everything you 3D print, protrusions or not. And even if it isn’t guns, you’d may not want that.
Damn, is it always connected or something? That’s fucked, glad I have an old ender 3
Do you think the politicians know how?
I think there are some printers that refuse to print pictures of currency.
Either way, having picked up an Ender 3 back in the day that is completely offline sounds better and better everyday.
For currency that was a specific feature built into the currency itself. https://en.wikipedia.org/wiki/EURion_constellation
Guns/Weapons cannot have such a thing built into them as they are non-functional elements that can easily be omitted in whatever design you print. And since General AI isn’t real, you can’t expect any system to recognize if you are tryign to print a weapon. Honestly this is the same kind of intellectual bankruptcy that backs anti-cryptography bills.
AI, of course!