Abstract: Disclosed is a coater assembly 1 for a 3D printer, comprising a coater 3 having a container 5 which defines an inner cavity for receiving particulate construction material which opens into a container opening 7 for outputting the particulate construction material from the container 5, and an output region 9 which defines a coater output opening 11 for outputting the particulate construction material from the coater 3 onto a construction field. The container 5 is movable relative to the coater output opening 11 so that by moving the container 5 relative to the coater output opening a discharge of particulate construction material from the inner cavity through the container opening 7 and the coater output opening 11 onto the construction field is variable.

Abstract: Disclosed is a 3D printer 10 having a coater 30 and a coater cleaning device 50. The coater 30 has a container 32 defining an inner cavity 34 for receiving particulate construction material and an output region 36 for outputting the particulate construction material. The coater cleaning device 50 has a cleaning web 52. The coater cleaning device 50 and the coater 30 are configured to move the output region 36 and/or the cleaning web 52 relative to each other for wiping the output region 36 by means of the cleaning web 52.

Abstract: Disclosed is a coater assembly 1 for a 3D printer, comprising a coater 3 having a container 5 which defines an inner cavity for receiving particulate construction material which opens into a container opening 7 for outputting the particulate construction material from the container 5, and an output region 9 which defines a coater output opening 11 for outputting the particulate construction material from the coater 3 onto a construction field. The container 5 is movable relative to the coater output opening 11 so that by moving the container 5 relative to the coater output opening a discharge of particulate construction material from the inner cavity through the container opening 7 and the coater output opening 11 onto the construction field is variable.

Abstract: A post-treatment process for increasing the hot strength of a formed part (100) made of particulate material and binder is disclosed, wherein the formed part (100) is formed a part manufactured by 3D printing (S72) and after its manufacture is heated (S30) using a heating device (40), and the heated formed part (100) is exposed (S50) to an atmosphere enriched with gaseous water generated by supplying water.

Abstract: The invention relates to a construction box (200) comprising a front wall (220), a rear wall and two side walls (224, 226), which delimit a construction box interior that houses a height-adjustable construction platform (210). The construction box (200) has dedicated travelling gear (250) integrated in to the construction box for propelling said box (2000 between a construction position, in which the construction box (2000 is positioned within the frame (150) of the system (100) to allow the shaped body to be built up and an additional construction box position, such as a construction box unpacking position, in which the construction box (200) is propelled out of the frame (150) of the system (100) to permit the unpacking of the built-up shaped body.

Abstract: The invention relates to a construction box (200) comprising a front wall (220), a rear wall and two side wails (224, 226), which delimit a construction box interior that houses a height-adjustable construction platform (210). The construction box (200) has dedicated travelling gear (250) integrated in to the construction box for propelling said box (2000 between a construction position, in which the construction box (2000 is positioned within the frame (150) of the system (100) to allow the shaped body to be built up and an additional construction box position, such as a construction box unpacking position, in which the construction box (200) is propelled out of the frame (150) of the system (100) to permit the unpacking of the built-up shaped body.