>Would they require background checks on people who previously bought 3D printers? They do for guns, why should this be any different? It's possible that some

>Would they require background checks on people who previously bought 3D printers? They do for guns, why should this be any different? It's possible that someone became a felon since they got their last 3d printer, and the cops wont necessarily check if someone is on the 3D printer owner registey when they arrest someone (if such a registrt will be created?) Plus when they eventually implement a 10 day waiting period for 3d printer purchases, I doubt people who already have a printer will be exempt (except maybe cops?)