3D printhead for use in a 3D printer, 3D printer having such a 3D printhead, method of driving such a 3D printer, and print product formed by such 3D printer

摘要

The 3D printer has a chamber, which is configured to obtain liquid or solid printing material through an inlet. The chamber has an outflow opening on one side and a spiral worm conveyor is associated with the chamber, the spiral worm conveyor reaching the chamber from the inlet by connecting the spiral worm conveyor or the chamber with a drive. And a drive configured to rotate the spiral worm conveyor or chamber such that the spiral worm conveyor is spaced from and relative to the plane of the chamber. It is configured. The spiral worm conveyor has at least one transfer path and at least one unloading transfer path, the transfer path between the inlet area located radially outside and the outlet area located radially inside of the print material. And an unloading transport path configured to transport the print material and the gas present therein away from at least a section of the radially outer edge zone of the exit region, Arranged and configured.