New to this forum or any forum in general, but I can't seem seem to find an answer anywhere else. I work in the pewter centrifugal rubber mold business as a caster. I would like to get into model making considering we own a 3-axis cnc mill and I'm the only one capable of using it. The plan is to cut a relief in my homemade machinable wax reversed, and pour some 2 part urethane plastic into the cavity for the models. My question is. Is it legal to mass produce from relief files bought online from stores like vectricart3d.com. If not, is it legal to do this with a similar site? Or do I require something like vectric aspire for what I'm after? Thanks.