It’s important to note that sulfur-free clay must be used ... While the entire mold-making and molding process is time-consuming, the copied parts are almost indistinguishable from the original.

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.

Narrator: From there, he pours the clay into a plaster mold, a technique called slip casting. This method allows the slip to conform to the shape of whatever mold Eric decides to use. After the ...