Construction chamber for an apparatus for additive manufacturing of three-dimensional objects

A construction chamber for an apparatus for additive manufacturing of three-dimensional objects, the construction chamber comprising a construction chamber base body which limits a construction volume forming a construction room, wherein the construction chamber base body comprises:

• a first construction chamber base body segment;
• a second construction chamber base body segment that can be attached or is attached to the first construction chamber base body segment by at least one first attachment element arranged or formed on the first construction chamber base body segment and interacting with at least one second attachment element arranged or formed on the second construction base body segment;
• wherein the second construction chamber base body segment further comprises at least one third attachment element arranged or formed thereon and configured to facilitate a third construction chamber base body segment to be attached to the second construction chamber base body segment at least in part by interacting with at least one fourth attachment element arranged or formed on the third construction chamber base body segment, wherein each of the first, second, and third construction chamber base body segments limits a respective construction room portion describing a full inner perimeter of a corresponding portion of the construction room and co-defining a base shape of the construction room.