# US 2014/0197576 A1 · Device and method for the production of a three-dimensional object > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197576 A1 - Document ID: US20140197576A1 - Status: Published application - Kind: A1 - Application number: 14/107,438 - Filed: 2013-12-16 - Published: 2014-07-17 - Earliest claimed: 2011-06-16 - Assignees: Arburg GmbH + Co KG - Applicants: Arburg GmbH + Co. KG - Inventors: Herbert KRAIBUHLER; Eberhardt DUFFNER - Web page: https://patentgrep.com/patent/US20140197576A1 ## CPC - B29C 64/112: using individual droplets, e.g. from jetting heads - B29C 64/40: Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof - B33Y 10/00: Processes of additive manufacturing - B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ## Abstract The device and the method serve for the production of a three-dimensional object from a solidifiable by a sequential discharge of drops onto an object carrier for the object to be produced, the device including discharge unit with an outlet orifice discharges drops along an axis (s) in a direction to the object carrier, and control means configured to control the motion of the object carrier and the object on the one hand and the outlet orifice on the other hand relative to each other in space, where due to the fact that means are provided for a mutual alignment of the object carrier or the object on the one hand and the outlet orifice on the other hand and that can be controlled by control means, with the axis (s) in a mutually aligned state intersecting a surface of the object carrier or the already produced object, such that a method and a device are provided for the production of a three-dimensional object with geometric overhangs and/or undercuts using solidifiable materials. ## Claims ### Claim 1 A device for production of a three-dimensional object from a solidifiable material, which is either present in an original state in a fluid phase or can be liquefied, by a sequential discharge of drops, the device comprising: an object carrier for the object, which is to be produced, a discharge unit with an outlet orifice for discharging the solidifiable material in the form of drops along an axis in a direction towards the object carrier in order to construct an object, control means for controlling a motion of the object carrier or the object on the one hand and the outlet orifice on the other hand relative to each other in the space, means for mutually aligning of the object carrier or the object, which is already at least partially produced, on the one hand, and the outlet orifice on the other hand in a mutually aligned state, which means for mutually aligning are controlled by the control means, with the axis in the mutually aligned state intersecting a surface of the object carrier or the object, which is already at least partially constructed, wherein the axis in the mutually aligned state is arranged at a right angle in reference to a tangent to the surface and in the direction of gravity, and wherein the object carrier or the object, which is already at least partially constructed, is arranged on a multi-axis geometry and supported at a 45°-incline, rotatable by a rotary motor. ### Claim 2 (depends on 1) A device according to claim 1, wherein in the mutually aligned state the axis is aligned to integrally form overhangs at the object to be produced on the object carrier. ### Claim 3 A method for production of a three-dimensional object comprising a solidifiable material, which is either present as a fluid in an original state or can be liquefied, by a sequential discharge of drops, the method comprising: providing the solidifiable material in a fluid phase or plasticizing the solidifiable material into the fluid phase, inserting the fluid phase into a clockable discharge unit, discharging the drops from an outlet orifice of a discharge unit along an axis in a direction towards an object carrier for the three-dimensional object to be produced, with the object carrier or the object, which is already at least partially produced, on the one hand, and the outlet orifice on the other hand, being movable in space relative to each other, a position-controlled, mutual alignment of the object carrier or the object, which is already at least partially produced, on the one hand and the outlet orifice on the other hand, wherein the axis in a mutually aligned state intersecting a surface of the object carrier or of the object, which is already at least partially produced, wherein the axis in the mutually aligned state is arranged approximately at a right angle in reference to a tangent to the surface and the discharge of the drops occurs in a direction of gravity, and wherein the object carrier or the object, which is already at least partially produced, is arranged on a multi-axis geometry and supported at a 45°-incline, rotatable by a rotary motor. ### Claim 4 (depends on 3) A method according to claim 3, wherein the axis is aligned such that the drops are added to the object carrier or the object as overhangs. ### Claim 5 A device for producing a three-dimensional object comprising a solidifiable material, the device comprising: an object carrier for the object to be produced, a discharge unit with an outlet orifice for discharging the solidifiable material along an axis in a direction towards the object carrier for constructing the object, control means for controlling the motion in space of at least one element comprising the object carrier or the object on the one hand and the outlet orifice on the other hand, means for a mutual alignment of the object carrier or the object on the one hand and the outlet orifice on the other hand, which means for a mutual alignment are controlled for a mutual alignment by the control means, with the axis in a mutually aligned state intersecting a surface of the object carrier or the already produced object, wherein the object carrier or the object is arranged on a multi-axis geometry and supported at a 45°-incline, rotatable by a rotary motor. ### Claim 6 (depends on 1) A device according to claim 1, wherein in the mutually aligned state the axis is aligned to form overhangs at the object to be produced at the object carrier. ### Claim 7 A method for the production of a three-dimensional object comprising a solidifiable material, the method comprising: providing the solidifiable material in a discharge unit, discharging the solidifiable material from an outlet orifice of the discharge unit along an axis in a direction towards the object carrier for an object to be produced, wherein the object carrier or the object to be produced on the one hand and the outlet orifice on the other hand are movable in space relative to each other, a position-controlled, mutual alignment of the object carrier or the object on the one hand and the outlet orifice on the other hand, wherein in a mutually aligned state the axis intersecting a surface of the object carrier or of an already at least partially produced object, wherein the object carrier or the object is arranged on a multi-axis geometry and supported at a 45°-incline, rotatable by a rotary motor. ### Claim 8 (depends on 3) A method according to claim 3, wherein the axis is aligned such that the solidifiable material is added at the object carrier or at the object as an overhang.