Without going in to it - there is a massive range of plastics and non plastics of varying quality, expense, and accessibility. Yes, 3d printing is a legit meth

Without going in to it - there is a massive range of plastics and non plastics of varying quality, expense, and accessibility. Yes, 3d printing is a legit method for production. Typically if you can have a die made for it you will be better off in the long run with casting. Dies are incredibly expensive however. Smaller runs or highly specialised and difficult geometries benefit from 3d printing.