Use of extruder heads, extruder systems, and extruder heads and / or extruder systems

摘要

An extruder head (1) for extruding a strand (ST) of a building material (BS) for 3D printing of a structure (BWT), wherein the extruder head (1) is an extruder nozzle (5). Here, the extruder nozzle (5) has an ejection opening (2) for the strand (ST) of the building material (BS) to eject from the extruder head (1) in the ejection direction (x), and has at least one. One designated element (7a, 7b, 8a, 8b, 30a, 30b) and, here, at least one designated element (7a, 7b, 8a, 8b, 30a, 30b) is a strand (BS) ejected from the building material (BS). ST) is variably formed to specify at least one portion (4A, 4I) of the strand cross section (4) so that it can be variably designated, and at least one adjuster (213, 217a, 217b, 218a, 218b), where at least one adjuster (213, 217a, 217b, 218a, 218b) variably adjusts at least one designated element (7a, 7b, 8a, 8b, 30a, 30b). The extruder head (1) is formed so as to be below the injection opening (2) in a first extension direction (-z) different from the injection direction (x) at the maximum opening height (HO). At least one second extension direction (-y, y) that is formed and arranged to extend up to the maximum opening height (HO) and / or differs from the ejection direction (x) in the maximum opening width (BO). ), The extruder head (1) is formed and arranged so as to extend laterally to the injection opening (2) by a maximum opening width (BO). [Selection diagram] Fig. 1