3D printer for automated series production

A 3D printer (1) comprising a temperature-controllable, thermally insulated assembly space (2) for an object (3) to be produced as well as at least one print head (4a, 4b) which can be moved along at least two axes (x, y), each of the at least two axes (x, y) being perpendicular to one another, and is capable of adding a powdered, pasty, or liquid material locally to the object (3) to be produced, wherein the assembly space (2) includes an at least two-part cover (6, 6a-6c) which can be moved with the at least one print head (4a, 4b), wherein at least a first part (6a) of the at least two-part cover (6, 6a-6c) is fixedly coupled for movement with the at least one print head (4a, 4b) along the at least two axes (x, y), and wherein at least a second part (6b) of the at least two-part cover (6, 6a-6c) can be coupled to the first part (6a) by at least one releasable coupling means (7a, 7b),

• wherein the at least one releasable coupling means (7a, 7b) includes a spring-loaded lever (12) at one part (6a, 6b) of the at least two-part cover (6, 6a-6c) and a groove (13) applied to another part (6a, 6b) of the at least two-part cover (6, 6a-6c), in such a way that the spring-loaded lever (12) can be moved across the groove (13) during a relative movement of the one part (6a, 6b) and the another part (6a, 6b) in relation to one another and can be pressed into the groove (13) by spring force,
• wherein an actuator (11) is configured to axially move along an axis (z), the axis (z) being perpendicular to each of the at least two axes (x, y), wherein the actuator (11) is configured to unlatch the spring-loaded lever (12) from the groove (13) when the second part (6b) is at a designated parking position, and wherein the actuator (11) includes a blocking device that is capable of retaining the second part (6b) when the second part (6b) is at the designated parking position (10).