Metodo e apparato per la stampa 3D di gioielli e componenti a alto valore aggiunto

The building chamber reducer is an aluminium plate with a central 20x20x40 (h) mm³ hole. The plate is 15 mm thick, but its building chamber has a depth of 40 mm. The plate external dimensions have been designed to fit the internal ones of the existing building box. Due to this modification, also the powder bed platform had to be modified to fit the new dimensions of the building plate. The new powder bed platform is divided in two main parts: a cylindrical part and a parallelepiped part with a flat top surface, where the powder will be deposited during the printing. The new system includes two thin aluminium plates connected to the cylindrical part and needed to couple the grasping machine system with the new powder bed platform. Characteristic elements of the invention: A reducer to diminish the job box of the binder jetting machine aimed at reducing the amount of powder deposited on the building platform. A customised hopper to store the powder and release it during the deposition phase.