First, a so-called “green part” is printed from Ultrafuse like any other filament, however a hardened steel nozzle was used because of the highly abrasive nature of Ultrafuse and other filled filaments. After printing the binder material is extracted from the green part so that the part consists nearly completely of metal powder. Finally the part is heated in a furnace at a temperature of at least 1,300°C. At the end of the sintering step the completed metal part is obtained. Usually during the sintering process, the parts shrink by up to 20%, which should be compensated in the slicing software.