I can't imagine the printers being open source or not mattering for that, nor can I see any reasonable government banning printing of specific things. If something is illegal to own or manufacture, that already applies to 3D printers just as much as it did to CNC machines or any other method.
Not quite the same, and hopefully likely to fail if it hasn't already, but it shows that interest exists in regulating 3D printers. When enough interest exists, things will happen.
Because violent criminals tend to lack wealth, knowledge, and skills. Nobody in the hood about to knock off a 7-11 has a tormach at home and the gcode for a reciever queued up.
"Pretty much everything" does include "can't print some things" which is pretty much: they control what you can and can't print. So technically you are right and they are right too, but this conversation path led us back in a circle instead of moving the debate forward.
With the 3D printer you can currently print everything on the 2-D printer you can print everything minus one. (actually there’s probably a whole bunch of currency you can’t print which is maybe hundreds of things ) those are completely different systems of control.
No, you can’t. Printer manufacturers are required to prevent printing certain kinds of images on sophisticated printers. And they also print watermarks unique to your printer on every page.
