Installation for additive manufacture of three-dimensional objects, comprising: - at least one device which is configured for additive manufacture of a three-dimensional object by means of successive layered selective exposure, and associated solidification of build material layers that are to be solidified selectively and that are made of a solidifiable build material in the form of a metal, plastics and/or ceramic powder, using an energy beam , wherein the device comprises a coater means for forming build material layers to be selectively exposed, in a construction plane , and an exposure means that comprises one or more exposure elements and is intended for generating an energy beam for selective exposure of a build material layer formed by the coater means in the construction plane that is to be selectively exposed and thus selectively solidified, - at least one powder module (11a - c) which comprises a powder chamber that defines a powder chamber volume and is intended for receiving build material that is to be solidified within the context of an additive construction process or that is not solidified within the context of an additive construction process, with a support means (12a - 12c) that is arranged or formed therein and comprises at least one magnetisable component, wherein the at least one powder module (11a - c) is a construction module in which the additive construction of three-dimensional objects takes place, and which is filled, for this purpose, and within the context of carrying out additive manufacturing processes, successively and in layers with build material to be selectively solidified; - at least one demagnetisation means which is configured for automatable or automatic demagnetisation of at least one magnetised component, at least of the construction module , in particular of the support means thereof. - at least one device which is configured for additive manufacture of a three-dimensional object by means of successive layered selective exposure, and associated solidification of build material layers that are to be solidified selectively and that are made of a solidifiable build material in the form of a metal, plastics and/or ceramic powder, using an energy beam , wherein the device comprises a coater means for forming build material layers to be selectively exposed, in a construction plane , and an exposure means that comprises one or more exposure elements and is intended for generating an energy beam for selective exposure of a build material layer formed by the coater means in the construction plane that is to be selectively exposed and thus selectively solidified, - at least one powder module (11a - c) which comprises a powder chamber that defines a powder chamber volume and is intended for receiving build material that is to be solidified within the context of an additive construction process or that is not solidified within the context of an additive construction process, with a support means (12a - 12c) that is arranged or formed therein and comprises at least one magnetisable component, wherein the at least one powder module (11a - c) is a construction module in which the additive construction of three-dimensional objects takes place, and which is filled, for this purpose, and within the context of carrying out additive manufacturing processes, successively and in layers with build material to be selectively solidified; - at least one demagnetisation means which is configured for automatable or automatic demagnetisation of at least one magnetised component, at least of the construction module , in particular of the support means thereof. <EOS>