Abstract: A flow system and a flow arrangement for flowing a building material in a building field of a manufacturing device for additive manufacturing includes an outer flow guide having an opening connectable to a gas discharge for discharging gas from a process chamber of the device, and a second flow opening connectable to a gas supply for supplying gas into the process chamber, the outer flow guide and a central flow guide are outside the building field, the building field extends radially from a building field recess not usable for manufacturing, wherein the outer flow guide is outside of the building field, and the central flow guide is in a central building field recess region, which is arranged outside in an inward radial direction of the building field, to generate gas flow running in radial flow direction over the building field.

Abstract: The invention relates to a method for the additive manufacturing of at least one three-dimensional object (1) by means of a system comprising a coating unit (40) and at least two irradiation units (50), the irradiation areas of which partially overlap or are adjacent to each other, wherein the irradiation areas are adapted so that a total irradiation period for selectively solidifying one or more layers of applied build-up material (30) is minimised as required. The invention further relates to a system for additive manufacturing of three-dimensional objects and a computer-readable storage medium.

Abstract: A method for the additive manufacture of at least one three-dimensional object by means of a system, wherein a coating unit is moved onward through any number of segments and/or subsegments such that the coating unit performs at least one idle run. A system for the additive manufacture of three-dimensional objects, and a computer-readable storage medium are also disclosed.

Abstract: The invention relates to a method for additively manufacturing at least one three-dimensional object (1) by means of a system, wherein a coating unit (40) is stopped in a segment (A; B; C; D) and/or one of its sub-segments (A1; A2; B1; B2; C1; C2; D1; D2) as a parking segment. Furthermore, the invention relates to a system for additive manufacturing of three-dimensional objects and a computer-readable storage medium.

Abstract: Disclosed is a manufacturing device for additive manufacturing of three-dimensional elements by layer-by-layer application by at least one coating unit and locally selective solidification of a build-up material by at least one irradiation unit, the manufacturing device including a building shaft and a carrier with a building platform, wherein the element can be built up on the building platform within the building shaft, wherein the building shaft can be changed relatively in height with respect to the building platform and is sealable with respect to the latter during the layer-by-layer application in that during the layer-by-layer application between an inner surface of the building shaft and the carrier a gap is formed such that a part of the build-up material can at least partially penetrate to thereby seal the building shaft with respect to the carrier.