How would it know what is a firearm and what isn't? Seems trivial to defeat for someone who knows CAD, no?
That’s the tricky part of this whole mess. Online servers would have to mesh and volume your model and determine if it matches a likeness of any known models. So much for printing NERF.
I don’t think this will pass as is but it shows you where lawmakers heads are. They would rather brick your capability than do actual policing.
They'll just run it through BigBrotherGPT, a CAD aware multimodal censorship bot specially trained to recognize Bad Things that must not be printed. And while this is sarcastic, it also occurs to me that it's also really, really achievable. OpenAI could probably whip one up in a weekend office hackathon.