The building and unpacking process steps in the VXC800 3D printer from Voxeljet are designed to run in parallel, without a need to interrupt the operations of the system. Printing takes place at the entrance of a horizontal belt conveyor that controls the layer building, while the unpacking takes place at the exit. This system is the world’s first continuous 3D printer, according to Voxeljet.
Printing is done on a level tilted to the horizontal. First the coater generates a layer of powder at an angle to the horizontal that is smaller than the repose angle of the powder. A high-definition, 600-dpi print head then selectively bonds the layers. The conveyor system moves the entire fill toward the unpacking area by one layer thickness. The finished component can be removed from the rear of the system when it has gone through the entire material.
The VXC800 features an 850 × 500-mm build space and, according to Voxeljet, the length of the molds is virtually unlimited as there are no restrictions with respect to the length of the belt conveyor. The machine works with layer thicknesses ranging from 150 µm to 400 µm.
Voxeljet has expanded the capacity of its service center in Germany to meet increasing demand by adding a VXC800 printer as well as a VX1000 printer to its current machinery fleet. The VX1000 offers a large build space of 1,060 × 600 × 500 mm.