Methods and devices for producing three-dimensional shaped objects

A method for producing a three-dimensional shaped object, comprising applying an extrusion material to a printing surface by a printhead in a plurality of layers arranged one above the other along a z-axis, and performing relative movements in an x-axis and/or a y-axis of an x,y-axis plane extending perpendicularly to the z-axis between the printhead and the printing surface during application,

• wherein the printhead has, on an output side facing the printing surface, at least one linearly extended aperture row with at least two extrusion apertures for extruding the extrusion material, and the printhead is arranged with respect to the aperture row at a setting angle in the x,y-axis plane, and wherein said relative movements comprises:
• A) performing a relative movement with a first setting angle of the printhead in a first movement direction while simultaneously extruding the extrusion material through the at least two extrusion apertures of the aperture row,
• B) performing a relative movement with the first setting angle of the printhead in a second movement direction deviating from the first movement direction while simultaneously extruding the extrusion material through the at least two extrusion apertures from A), wherein the relative movement in A) directly transitions into the relative movement in B), wherein in B), with one extrusion aperture of the at least two extrusion apertures in the second movement direction, a wider material swath or narrower material swath of the extrusion material is applied to the printing surface and/or one of the layers arranged thereon than with said one extrusion aperture of the at least two extrusion apertures in the first movement direction in A), wherein the extrusion of the extrusion material per time through one extrusion aperture of the at least two extrusion apertures is changed to apply the wider material swath or narrower material swath of the extrusion material on the printing surface and/or on one of the layers arranged thereon, and wherein the at least two extrusion apertures are set to a different discharge of the extrusion material per time, so that they produce different material swath widths of the extrusion material from one another.