Device for producing three-dimensional workpieces, wherein the device comprises: - a build surface which is adapted to receive a molding compound; and - an irradiation arrangement which is adapted to selectively irradiate the molding compound on the build surface with electromagnetic radiation in order to produce a workpiece by means of an additive layer manufacturing activity, wherein the irradiation arrangement comprises a plurality of irradiation units which are arranged so as to be stationarily within the irradiation arrangement and are unmovable parallel to the build surface, wherein the irradiation units are adapted to irradiate a respective associated individual region of the build surface, wherein the irradiation units each being adapted such that the beams are emitted at an unchangeable angle relative to the irradiation arrangement, wherein the emitted beams of the irradiation units each have a cross-sectional area which corresponds to between 2% and 170% of the area of the respective associated individual region, wherein the device further comprises a control device which is configured to control the irradiation units according to a workpiece layer currently to be produced, characterized in that the control device is configured to control the irradiation units in such a manner that, in order to produce a workpiece layer, they irradiate the molding compound one after the other and/or in a plurality of steps, and wherein the control device is configured to control the irradiation units in such a manner that, in a first irradiation step, a first portion of a workpiece layer to be produced is formed from the molding compound and, in a second irradiation step, a second portion of the workpiece layer to be produced is formed from the molding compound. - a build surface which is adapted to receive a molding compound; and - an irradiation arrangement which is adapted to selectively irradiate the molding compound on the build surface with electromagnetic radiation in order to produce a workpiece by means of an additive layer manufacturing activity, wherein the irradiation arrangement comprises a plurality of irradiation units which are arranged so as to be stationarily within the irradiation arrangement and are unmovable parallel to the build surface, wherein the irradiation units are adapted to irradiate a respective associated individual region of the build surface, wherein the irradiation units each being adapted such that the beams are emitted at an unchangeable angle relative to the irradiation arrangement, wherein the emitted beams of the irradiation units each have a cross-sectional area which corresponds to between 2% and 170% of the area of the respective associated individual region, wherein the device further comprises a control device which is configured to control the irradiation units according to a workpiece layer currently to be produced, characterized in that the control device is configured to control the irradiation units in such a manner that, in order to produce a workpiece layer, they irradiate the molding compound one after the other and/or in a plurality of steps, and wherein the control device is configured to control the irradiation units in such a manner that, in a first irradiation step, a first portion of a workpiece layer to be produced is formed from the molding compound and, in a second irradiation step, a second portion of the workpiece layer to be produced is formed from the molding compound.