Head module assembly of 3D printer and 3D printer and 3D printing method including same

摘要

The present invention relates to a head module assembly of a three-dimensional printer capable of modeling a three-dimensional object of a three-dimensional shape, a three-dimensional printer and a three-dimensional printing method including the same, and a powder material so that a three-dimensional object can be molded In the head module assembly of a 3D printer that is installed so as to be reciprocally linearly reciprocated above a molding stage in which layers can be stacked in a plurality of layers, and sprays an adhesive material on the molding stage, the adhesive material A head module in which at least one print head is installed in which a plurality of nozzles for spraying are arranged in a rectangular arrangement, a moving device for linearly moving the head module in an X-axis direction or a Y-axis direction perpendicular to the X-axis direction, and the When the head module sprays the adhesive material onto the powder material layer stacked on the molding stage, whether each individual nozzle of the printer head installed in the head module is discharged in a regular pattern or a random pattern is selected, and the plurality of A control unit for applying a control signal to the head module may be included to selectively spray the adhesive material through only some selected individual nozzles among the nozzles.