Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers (3) of a build material (4) which can be consolidated by means of an energy source.

Abstract: Method for additively manufacturing three-dimensional objects (1) based on build data, in particular via successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy source, which build data define at least one part of an object (1) to be built in the additive manufacturing process, in particular a geometrical structure of the object (1), wherein build data are generated comprising at least two sub-data sets (3, 4) relating to different geometrical parts of the object (1); at least one sub-data set (3, 4) is defined as open sub-data set (4); all sub-data sets (3) except the at least one open sub-data set (4) are locked, wherein the locked sub-data sets (3) are unchangeable and the at least one open sub-data set (4) is changeable; and at least one three-dimensional object (1) is additively manufactured based on the build data.

Abstract: Methods of controlling and/or operating an apparatus for additively manufacturing three-dimensional objects include simulating control and/or operation of at least one functionality of the apparatus using a provisional software product to check at least one pre-defined certification criterion upon which the at least one functionality of the apparatus are preconditioned, generating a machine-readable software product upon the provisional software product having satisfied the at least one pre-defined certification criterion, and controlling and/or operating the at least one functionality of the apparatus using the machine-readable software product. The software product may be generated by modifying the provisional software product based on a certification key provided to the provisional software product.

Abstract: Method for additively manufacturing three-dimensional objects (1) based on build data, in particular via successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy source, which build data define at least one part of an object (1) to be built in the additive manufacturing process, in particular a geometrical structure of the object (1), wherein build data are generated comprising at least two sub-data sets (3, 4) relating to different geometrical parts of the object (1); at least one sub-data set (3, 4) is defined as open sub-data set (4); all sub-data sets (3) except the at least one open sub-data set (4) are locked, wherein the locked sub-data sets (3) are unchangeable and the at least one open sub-data set (4) is changeable; and at least one three-dimensional object (1) is additively manufactured based on the build data.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers (3) of a build material (4) which can be consolidated by means of an energy source.

Abstract: Method for operating at least one apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of at least one energy beam (4), wherein the energy beam (4) can be guided along at least one defined beam path (9) arranged in a build plane (6) to irradiate build material (3), wherein dependent on at least one parameter relating to a length of the at least one defined beam path (9) and/or relating to a geometry of at least one region (10, 13) of at least one layer to be irradiated, the energy beam (4) is guided along the defined beam path (9) or along a substitute beam path (12).

Abstract: Method for producing a machine-readable controlling and/or operating means (M) for controlling and/or operating at least one functionality of an apparatus (1) for additively manufacturing a three-dimensional object (2) is provided which can be consolidated by means of an energy beam (4), including: providing a specified data format, producing a provisional controlling and/or operating means (PM), checking if the produced provisional controlling and/or operating means (PM) fulfils at least one pre-defined certification criterion, and if the provisional controlling and/or operating means (PM) fulfils the at least one certification criterion, producing the machine-readable controlling and/or operating means (M) by providing at least one certification key (K) to the provisional controlling and/or operating means (PM).