Materials are critical to prototyping and production success. At the heart of any great application is the right material: one that performs as needed under the application’s conditions. This is just as true for 3D printing as it has always been for molding, machining, and casting. While the 3D printing industry has a wide variety of materials to choose from, ranging from plastic to metal and wax to paper, the selection is often quite limited for a given technology. It is even more restricted for specific 3D printers, with one exception.