An unpacking device configured for unpacking at least one three-dimensional object by removing non-solidified construction material from the three-dimensional object produced by layered application and selective solidification of a powdery construction material by a construction process performed within a pot shaped construction container that includes at least one container opening, the unpacking device comprising: a) an unpacking chamber b) a pivoting device arranged in the unpacking chamber, c) a receiving device received in the construction container and including a screen cover including a screen, wherein the receiving device is pivotable by a pivoting device about at least one axis, wherein the screen is configured to pass through the non-solidified construction material but not configured to pass through the at least one object, d) wherein the screen cover is movably supported at the receiving device, e) wherein at least the pivot device and the screen cover are configured and controlled by a control, e1) so that the construction container with the at least one object received therein and adhered by non-solidified construction material is receivable in or at the receiving device in an essentially upright position where the container opening is essentially oriented upward, e2) so that the screen cover is controllable between a first receiving position in which the construction container is receivable in or at the receiving device in the essentially vertical position and where the container opening is at least partially unclosed and an operating position where the screen cover closes the container opening of the construction container received in or at the receiving device, e3) so that the construction container including the screen cover moved into the operating position is pivotable at least once about the at least one axis between the essentially upright position and an upside down position where the container opening of the construction container is essentially oriented downward following gravity and where the at least one object rests on the screen so that the screen is passible by the non-solidified construction material removed from the at least one object. a) an unpacking chamber b) a pivoting device arranged in the unpacking chamber, c) a receiving device received in the construction container and including a screen cover including a screen, wherein the receiving device is pivotable by a pivoting device about at least one axis, wherein the screen is configured to pass through the non-solidified construction material but not configured to pass through the at least one object, d) wherein the screen cover is movably supported at the receiving device, e) wherein at least the pivot device and the screen cover are configured and controlled by a control, e1) so that the construction container with the at least one object received therein and adhered by non-solidified construction material is receivable in or at the receiving device in an essentially upright position where the container opening is essentially oriented upward, e2) so that the screen cover is controllable between a first receiving position in which the construction container is receivable in or at the receiving device in the essentially vertical position and where the container opening is at least partially unclosed and an operating position where the screen cover closes the container opening of the construction container received in or at the receiving device, e3) so that the construction container including the screen cover moved into the operating position is pivotable at least once about the at least one axis between the essentially upright position and an upside down position where the container opening of the construction container is essentially oriented downward following gravity and where the at least one object rests on the screen so that the screen is passible by the non-solidified construction material removed from the at least one object. e1) so that the construction container with the at least one object received therein and adhered by non-solidified construction material is receivable in or at the receiving device in an essentially upright position where the container opening is essentially oriented upward, e2) so that the screen cover is controllable between a first receiving position in which the construction container is receivable in or at the receiving device in the essentially vertical position and where the container opening is at least partially unclosed and an operating position where the screen cover closes the container opening of the construction container received in or at the receiving device, e3) so that the construction container including the screen cover moved into the operating position is pivotable at least once about the at least one axis between the essentially upright position and an upside down position where the container opening of the construction container is essentially oriented downward following gravity and where the at least one object rests on the screen so that the screen is passible by the non-solidified construction material removed from the at least one object.