Now that cheap 3D printing is a thing, what's stopping someone, or even FromSoft themselves, from taking from Armored Core, designing hundreds of interchangeable, universal parts, and selling boxes of randomly selected parts, so that kids and such can make any mech they want from what they get, because all the parts are universally compatible with each other? FromSoft could just take their old designs, and print them out and sell them. I don't see why it hasn't been done, at least that I'm aware of. Both kids and adults would dig that shit. Is there anything exactly like that?