There’s more than one way to make a mold, especially for casting in metal. We’ve seen everything from 3D-printed molds to kinetic sand.

Seems like most of the metal casting projects we feature are aluminum in sand molds, though ... and a handful of play sand is all you need to make custom parts.

many car body parts are made from a mold, and these are just a few examples. Initiating a business that specializes in making manufacturing molds for clients is not a hard business to establish.