Supporters of the bill say it's necessary to thwart convicted felons who use 3D printers to develop untraceable "ghost guns."
I understand the intent, but feel that there are so many other loopholes that put much worse weapons on the street than a printer. Besides, my prints can barely sustain normal use, much less a bullet being fired from them. I would think that this is more of a risk to the person holding the gun than who it's pointing at.
No need. You can buy ALL of the parts off the shelf for a 3D printer and assemble it yourself. None are regulated (Aluminum rails, motors, arduino controllers, LCD panels, Power supplies, heating elements, thermistors, wiring). Strictly speaking there's nothing about a non-resin 3d Printer you can't procure and build yourself. And you can even 3d Print the housings to make it look nice once you've assembled it. Oh... and the designs and parts are largely open source.