A method of printing a three-dimensional object. The method comprises supplying a print material that is electrically conductive to a plurality of ejector conduits arranged in an array, the ejector conduits comprising first ends configured to accept the print material and second ends comprising ejector nozzles; advancing the print material in one or more of the ejector conduits of the array until the print material is disposed in the ejector nozzle of the one or more ejector conduits; flowing electrical current through the print material positioned in at least one of the ejector nozzles, thereby heating and expanding the print material in the at least one of the ejector nozzles so as to eject at least a portion of the print material from the at least one of the ejector nozzles onto a print substrate; and repeating both the advancing and the flowing electrical current through the print material to form a three-dimensional object on the print substrate.

A method of printing a three-dimensional object. The method comprises supplying a print material that is electrically conductive to a plurality of ejector conduits arranged in an array, the ejector conduits comprising first ends configured to accept the print material and second ends comprising ejector nozzles; advancing the print material in one or more of the ejector conduits of the array until the print material is disposed in the ejector nozzle of the one or more ejector conduits; flowing electrical current through the print material positioned in at least one of the ejector nozzles, thereby heating and expanding the print material in the at least one of the ejector nozzles so as to eject at least a portion of the print material from the at least one of the ejector nozzles onto a print substrate; and repeating both the advancing and the flowing electrical current through the print material to form a three-dimensional object on the print substrate.

A printer is described that comprises a print chamber and an electromagnet moveable within the print chamber. The electromagnet has an on state and an off state. The electromagnet is to collect magnetic powder within the print chamber when in the on state, and to deposit magnetic powder when in the off state.

A printer is described that comprises a print chamber and an electromagnet moveable within the print chamber. The electromagnet has an on state and an off state. The electromagnet is to collect magnetic powder within the print chamber when in the on state, and to deposit magnetic powder when in the off state.

A connection point for a feeding station and/or an emptying station for powdered building material of a building station, unpacking station and/or sieve station which can be combined to form an installation for producing three-dimensional components by layer-by-layer solidification by means of a beam acting on the powdered building material, having a docking port which has a free connection side, having a closure member which opens and closes a passage in the docking port, having a connection port of a connecting device, which connection port can be connected to the docking port and, opposite the connection port, receives a cartridge container, having a closure member which is provided on the connection port and opens and closes a passage of the connection port, wherein, after the connection port has been connected to the docking port, the closure member in the connection port and the closure member in the docking port form a lock for the powdered building material in the feeding station for feeding and in the emptying station for discharging powdered building material.

A connection point for a feeding station and/or an emptying station for powdered building material of a building station, unpacking station and/or sieve station which can be combined to form an installation for producing three-dimensional components by layer-by-layer solidification by means of a beam acting on the powdered building material, having a docking port which has a free connection side, having a closure member which opens and closes a passage in the docking port, having a connection port of a connecting device, which connection port can be connected to the docking port and, opposite the connection port, receives a cartridge container, having a closure member which is provided on the connection port and opens and closes a passage of the connection port, wherein, after the connection port has been connected to the docking port, the closure member in the connection port and the closure member in the docking port form a lock for the powdered building material in the feeding station for feeding and in the emptying station for discharging powdered building material.

A storage device for cartridge containers in a installation for producing three-dimensional component by selective solidification by means of a beam acting on a powdered building material, having a magazine which has a plurality of storage locations for receiving cartridge containers and which can be transferred at least to an emptying/feeding station and to a loading/unloading station, having a holding device provided at each storage location, by means of which the cartridge container is fixed to the storage location in an exchangeable manner, having an opening provided in the storage location, by means of which a docking port of the emptying/feeding station can be connected to the cartridge container, and having a drive which activates a change of the storage locations by a displacement movement of the magazine at least between an emptying/filling position of the emptying/feeding station and the loading/unloading station.

A storage device for cartridge containers in a installation for producing three-dimensional component by selective solidification by means of a beam acting on a powdered building material, having a magazine which has a plurality of storage locations for receiving cartridge containers and which can be transferred at least to an emptying/feeding station and to a loading/unloading station, having a holding device provided at each storage location, by means of which the cartridge container is fixed to the storage location in an exchangeable manner, having an opening provided in the storage location, by means of which a docking port of the emptying/feeding station can be connected to the cartridge container, and having a drive which activates a change of the storage locations by a displacement movement of the magazine at least between an emptying/filling position of the emptying/feeding station and the loading/unloading station.

A robot to manufacture a part by additive manufacturing using volume elements or voxels. The robot includes a base and a rotary arm having a plurality of effectors for additive manufacturing radially distributed on the arm. A guiding shaft to translationally move the rotary arm by rotation, in a direction parallel to its axis of rotation, and to translationally and rotationally guide the rotary arm relative to the base. A controller to control the action of the effectors for additive manufacturing as a function of the position of the rotary arm in space. A method for implementing the robot is provided.

A low pull force system for feeding a filament along a feed path from a source to a liquefier in a 3D printer includes a low compressive force loading drive for advancing filament from the source, a feed drive for advancing filament into the liquefier, and an in-line accumulator comprising a telescoping joint positioned in the feed path between the loading drive and the feed drive. When the telescoping joint is in a contracted position, the loading drive activates to feed filament into the feed path at a rate faster than a rate at which the feed drive advances filament into the liquefier, causing the telescoping joint to expand and accrue a slack of filament in the feed path. When the telescoping joint reaches an extended position, the loading drive deactivates while the feed drive continues to advance filament into the liquefier, and the slack of filament is consumed.