Quote Originally Posted by RP Iron Man View Post
Even then, the molten metal would completely melt the plastic mold, unless you were to use a low temp metal like tin...But then again, tin is so flimsy that it wouldn't really be worth using for structural parts, though it would make for a very interesting experiment

Eric
You don't make the mold directly from the printing. The printing replaces steps 1-6 in a lost wax process

https://en.wikipedia.org/wiki/Lost-wax_casting#Process