We are students in the Product Manufacturing Process Design section of Aristide Briand High School. Here, we use CNC machining and turning machines in addition to the 3D printer and laser cutting to produce objects. But using 3D printers, we produce waste, so we created La Moustache d’Aristide to give another use to the 3D printing supports and rafts. We decided to make the mould ourselves using an aluminum alloy and our milling machines.