Creating molds from 3D Printing?

[3dkarma]

sorry. i didnt understand how the indirect method with wax or pla works.

Ah, OK. There's a good writeup (with lots of pictures and video) of lost PLA casting here: http://3dtopo.com/lostPLA/

Edit: Comprehensive writeup of lost ABS casting here: http://jason-webb.info/2012/11/lost-...minum-casting/