TITAL relies on both lost wax casting and 3D printing of PMMA for the production of investment castings. Additionally, higher capacities are possible via the wax injection molds set up in a series compared to PMMA 3D printing. DMLS (Direct Metal Laser Sintering): An alternative to 3D printing investment casting patterns? In the past, TITAL's corporate parent, then named Arconic, operated some 3D printing manufacturing facilities in both development and production using metal 3D printing. "With PMMA 3D printing, segmentation and subsequent assembly into a single part is possible," explains Florian Rauscher.