This tutorial on how to cast metal parts from 3D printed silicone molds is a perfect example of how useful a 3D printer can be when you are looking to make a custom and durable metal part at home.

The icing on the cake? You can chase those dreams into other materials, because 3D prints can be used to cast metal. [RetroTech Journal] wanted to fry up some rosette cookies, a Scandinavian ...