This tutorial on how to cast metal parts from 3D printed silicone molds is a perfect example ... After 3D printing a mold design using an Ultimaker 2 [Matt Borgatti] casts the mold using Smooth ...
3. Melt 15 gms of dark chocolate and line the silicon moulds with dark chocolate set it in the refrigerator for 10 mins. 4. Pour the above mixture in the lined silicon moulds, keep it for setting in ...
The powdered uranium glass then goes into a graphite-coated plaster mold, which was made from a silicone mold ... we recently saw a DIY metal-melting microwave forge that would probably do ...