Abstract: A drive system includes a carrying device with a wearable carrying frame, an energy store carried by the carrying frame, and at least one electric drive motor carried by the carrying frame. A coupling device is configured to mechanically couple a work apparatus to the drive system. The carrying device is formed as a shoulder bag or backpack, having at least one strap that permits the carrying device to be worn over a shoulder of a user. Two straps may be provided that permit the carrying device to be worn over both shoulders of a user. Also disclosed is a tool having such a drive system and a work apparatus, which may be concrete vibrator.

Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, with a stream generating unit (2) configured to generate a stream of a process gas (3) being capable of being charged with particles (4), in particular non-consolidated particulate build material and/or smoke and/or smoke residues, generated during operation of the apparatus (1) and a filter unit (5) configured to separate particles (4) from the stream of process gas (3), wherein the filter unit (5) comprises a filter chamber (6) with at least one filter element (7) at least partly arranged in the streaming path of the generated stream of process gas (3), wherein particles (4) in the stream of process gas (3) are separated from the process gas (3) by the filter element (7), wherein a particle reception chamber (13, 26, 28) is separably connected or connectable to a particle outlet (11

Abstract: A device for producing three-dimensional objects by successively solidifying layers of a construction material that can be solidified using radiation on the positions corresponding to the respective cross-section of the object, with a housing comprising a process chamber, a construction container situated therein, an irradiation device for irradiating layers of the construction material on the positions corresponding to the respective cross-section of the object, an application device for applying the layers of the construction material onto a carrying device within the construction container or a previously formed layer, a metering device for delivering the construction material, wherein the application device comprises a coating element which distributes the construction material delivered by the metering device as a thin layer in an application area along a linear application movement, wherein at the end of a coating process for a layer when returning the coating element 11 to a coating starting position.

Abstract: Method for additively manufacturing three-dimensional objects, whereby flow of an inert process gas, preferably an inert gas or containing inert gas, is created, the inert process gas flowing through a chamber (3, 10) of at least one build apparatus (2) which is configured to additively manufacture three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam, and/or through a chamber of at least one apparatus (2) which is configured to perform at least one pre-processing step of an additive manufacturing process, and/or through a chamber of at least one at least one apparatus (2) which is configured to perform at least one post-processing step of an additive manufacturing process, wherein the flow of process gas displaces a certain volume of fluid from the chamber (3, 10).

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam (4), the apparatus (1) comprising a process chamber (8) and a stream generating device (9) configured to generate a gaseous fluid stream at least partly streaming through the process chamber (8), the gaseous fluid stream being capable of being charged with non-consolidated particulate build material, particularly smoke or smoke residues generated during operation of the apparatus (1), while streaming through the process chamber (8), wherein the stream generating (9) device comprises at least two separate stream generating units (13, 14) each being configured to generate a respective gaseous fluid stream.

Abstract: A system (1) for producing three-dimensional objects (2) by way of the solidification above one another of layers of a building material which can be solidified by means of radiation at the points which correspond to the respective cross section of the object, wherein the system (1) comprises at least one process station (4) which is arranged in a first housing (3) for carrying out the layer-by-layer generative building process in a building container (5), and a handling station (7) in at least one second housing (6) for unpacking produced objects (2) from the building container (5) which can be moved between the at least one process station (4) and the at least one handling station (7), wherein the at least one process station (4) and the at least one handling station (7) are arranged in separate housing units (3, 6).

Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, with a stream generating unit (2) configured to generate a stream of a process gas (3) being capable of being charged with particles (4), in particular non-consolidated particulate build material and/or smoke and/or smoke residues, generated during operation of the apparatus (1) and a filter unit (5) configured to separate particles (4) from the stream of process gas (3), wherein the filter unit (5) comprises a filter chamber (6) with at least one filter element (7) at least partly arranged in the streaming path of the generated stream of process gas (3), wherein particles (4) in the stream of process gas (3) are separated from the process gas (3) by the filter element (7), wherein a particle reception chamber (13, 26, 28) is separably connected or connectable to a particle outlet (11

Abstract: Powder module device (1) for an apparatus for additively manufacturing three-dimensional objects by successive layerwise selective irradiation and consolidation of layers of a powdered build material (2). The device includes a powder module (3), comprising a powder module base body (6) to receive a powdered build material (2), comprising wall elements; delimiting a build material receiving volume (9) for receiving a powdered build material (2) and an opening (10) for introducing powdered build material (2) into the build material receiving volume (9); a lid (4), comprising a lid base body (11) connected to the powder module base body (6) so as to close the opening (10) of the powder module base body (6) in a closed state of the powder module device (1); and a sealing device (5) configured to seal between the powder module (3) and the lid (4) in the closed state of the powder module device (1).

Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, with a stream generating unit (2) configured to generate a stream of a process gas (3) being capable of being charged with particles (4), in particular non-consolidated particulate build material and/or smoke and/or smoke residues, generated during operation of the apparatus (1) and a filter unit (5) configured to separate particles (4) from the stream of process gas (3), wherein the filter unit (5) comprises a filter chamber (6) with at least one filter element (7) at least partly arranged in the streaming path of the generated stream of process gas (3), wherein particles (4) in the stream of process gas (3) are separated from the process gas (3) by the filter element (7).

Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material (3) that can be solidified by means of an energy beam in a process chamber (7) of the apparatus with a defined process chamber height (H), comprising a flow device (8) provided for generating an, especially inert, gas flow (11) flowing through the process chamber (7) between an inflow section (9) and an outflow section (10), wherein the gas flow (11) flows through the process chamber (7) across the entire process chamber height (H), wherein the gas flow (11) is subdivided into several partial gas flows (11a-11c) flowing through the process chamber (7) parallel on top of each other, which differ in at least one flow parameter affecting the flow characteristics of the respective partial gas flows (11a-11c).

Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of a construction material (3) that can be solidified by means of laser radiation in a process chamber (10) of the apparatus, comprising an exposure device (5) provided for generating laser radiation for selective exposure and thus selective solidification of respective construction material layers, and a detection device (11) provided for detecting the entering of laser radiation into a process chamber limiting element at least partially limiting the process chamber (10) and/or for detecting the penetration of laser radiation through a process chamber limiting element at least partially limiting the process chamber (10).

Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material (3) that can be solidified by means of an energy beam, comprising a pipe structure (12), and a filter device (7) that is connected to the pipe structure (12), provided for filtering the process gas (9), wherein the filter device (7) comprises several filter modules (14) that can be or are arranged exchangeably connected to the pipe structure (12).

Abstract: Sieving unit (1) for sieving build material (4) for an apparatus for additively manufacturing three-dimensional objects, which sieving unit (1) comprises a moving unit (17), in particular a vibrating unit, that is adapted to move a sieving element (2) for generating a sieving movement and conveying build material (4) to be sieved across the sieving element (2), wherein the sieving unit (1) comprises a determination unit (24) adapted to determine capacity information of the sieving element (2) relating to an amount of build material (4) to be sieved which is conveyed across the sieving element (2).

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects, which apparatus (1) comprises an irradiation device (4) that is fixed in position, in particular with at least one static beam guiding unit, and at least one stream generating device (9) that is adapted to generate a gas stream (10) inside a process chamber (8) of the apparatus (1) that can be charged with residues (7) generated in an additive manufacturing process performed on the apparatus (1), wherein the stream generating device (9) comprises at least one stream generating unit generating a gas stream (10) over a build plane (6) between at least one stream intake (11) and at least one corresponding stream outlet (12), wherein the at least one stream intake (11) and/or the at least one stream outlet (12) are moveable relative to the build plane (6).

Abstract: Application unit (1) for applying, in particular powdery, build material in a build plane (2) in a process chamber (3) of an apparatus (4) for additively manufacturing three-dimensional objects, which application unit (1) comprises an application element (5) carried by an application element carrier (6), characterized in that the application element (5) is coupled to the application element carrier (6) via at least one deflection unit (9).

Abstract: Method for additively manufacturing three-dimensional objects, whereby flow of an inert process gas, preferably an inert gas or containing inert gas, is created, the inert process gas flowing through a chamber (3, 10) of at least one build apparatus (2) which is configured to additively manufacture three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam, and/or through a chamber of at least one apparatus (2) which is configured to perform at least one pre-processing step of an additive manufacturing process, and/or through a chamber of at least one at least one apparatus (2) which is configured to perform at least one post-processing step of an additive manufacturing process, wherein the flow of process gas displaces a certain volume of fluid from the chamber (3, 10).

Abstract: Plant (1) for additively manufacturing of three-dimensional objects (2), comprising: at least one build apparatus (3) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (4) which can be consolidated by means of an energy beam (5) and/or at least one apparatus (3) adapted to perform at least one pre-processing step of an additive manufacturing process and/or at least one apparatus (3) adapted to perform at least one post-processing step of an additive manufacturing process, whereby at least one control unit (6, 19, 22, 28) that is adapted to control a parameter of a fluid (7, 27) flowing alongside and/or through at least one component (8, 17, 20, 21) of the apparatus (3).

Abstract: Powder module device (1) for an apparatus for additively manufacturing three-dimensional objects by successive layerwise selective irradiation and consolidation of layers of a powdered build material (2). The device includes a powder module (3), comprising a powder module base body (6) to receive a powdered build material (2), comprising wall elements delimiting a build material receiving volume (9) for receiving a powdered build material (2) and an opening (10) for introducing powdered build material (2) into the build material receiving volume (9); a lid (4), comprising a lid base body (11) connected to the powder module base body (6) so as to close the opening (10) of the powder module base body (6) in a closed state of the powder module device (1); and a sealing device (5) configured to seal between the powder module (3) and the lid (4) in the closed state of the powder module device (1).

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam (4), the apparatus (1) comprising a process chamber (8) and a stream generating device (9) configured to generate a gaseous fluid stream at least partly streaming through the process chamber (8), the gaseous fluid stream being capable of being charged with non-consolidated particulate build material, particularly smoke or smoke residues generated during operation of the apparatus (1), while streaming through the process chamber (8), wherein the stream generating (9) device comprises at least two separate stream generating units (13, 14) each being configured to generate a respective gaseous fluid stream.

Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, with a stream generating unit (2) configured to generate a stream of a process gas (3) being capable of being charged with particles (4), in particular non-consolidated particulate build material and/or smoke and/or smoke residues, generated during operation of the apparatus (1) and a filter unit (5) configured to separate particles (4) from the stream of process gas (3), wherein the filter unit (5) comprises a filter chamber (6) with at least one filter element (7) at least partly arranged in the streaming path of the generated stream of process gas (3), wherein particles (4) in the stream of process gas (3) are separated from the process gas (3) by the filter element (7).