Abstract: An additive manufacturing method is disclosed in which an extrusion material is applied to a printing surface by a printhead in a plurality of layers arranged one on top of another along a z-axis, and relative movements in an x-axis and/or a y-axis of an x,y-axis plane extending perpendicular to the z-axis are performed between the printhead and the printing surface during the application. The method includes varying the swath width of the extrusion material extruded through one or more extrusion apertures of the printhead on the printing surface or one of the layers disposed thereon in response to the movement direction. Further disclosed are an associated computer-implemented method for 3D printing, associated 3D printheads, and an associated 3D printing apparatus.

Abstract: The present invention relates to a printing device (1), preferably a 3D printer (1), comprising at least one printing nozzle (3) which is designed to eject a flowable material through at least one ejection opening (32) in the direction of a work surface (11) which is preferably horizontal.