Using FDM 3D printers, building part patterns for sand casting is easy, fast, and accurate. By replacing the machined metal patterns, the entire spin casting process can be completed within a day. FDM’s thermoplastic materials (PC and PPSF) can withstand the vulcanizing process where the mold and its patterns are tested under 149 -177 °C temperatures and pressures of 800-3.500 psi, making them ideal for pattern making. FDM produces complex, intricate shapes with no impact on time or cost and like traditional spin casting, produces multiple parts per cycle. 3D printed spin casting is laborless, automated and produces thousands of parts made of metal, plastic or wax in a single day.