# US 12,179,430 B2 · Process for additive manufacturing and system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,179,430 B2 - Document ID: US12179430B2 - Status: Granted - Kind: B2 - Application number: 17/309,303 - Filed: 2019-11-07 - Published: 2022-01-20 - Granted: 2024-12-31 - Earliest claimed: 2018-11-19 - Assignees: Amcm GmbH - Applicants: Amcm GmbH - Inventors: Georg Fey - Web page: https://patentgrep.com/patent/US12179430B2 ## CPC - B29C 64/264: Arrangements for irradiation - B29C 64/205: Means for applying layers - B29C 64/214: Doctor blades - B29C 64/232: for motion along the axis orthogonal to the plane of a layer - B29C 64/241: for rotary motion - B29C 64/245: Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) - B29C 64/277: using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] - B29C 64/282: of the same type, e.g. using different energy levels - B29C 64/386: Data acquisition or data processing for additive manufacturing - B29C 64/393: for controlling or regulating additive manufacturing processes - B33Y 10/00: Processes of additive manufacturing - B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor - B33Y 50/00: Data acquisition or data processing for additive manufacturing - B33Y 50/02: for controlling or regulating additive manufacturing processes - B29C 64/153: using layers of powder being selectively joined, e.g. by selective laser sintering or melting - Y02P 10/25: Process efficiency - 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 - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The invention relates to a method for additively manufacturing at least one three-dimensional object (1) by means of a system, wherein a coating unit (40) is stopped in a segment (A; B; C; D) and/or one of its sub-segments (A1; A2; B1; B2; C1; C2; D1; D2) as a parking segment. Furthermore, the invention relates to a system for additive manufacturing of three-dimensional objects and a computer-readable storage medium. ## Claims ### Claim 1 A method for the additive manufacturing of an object by means of a system which has a building space, a building platform within the building space, on which the object to be manufactured can be built up layer by layer, at least one coating unit for a layer-by-layer application of a build-up material in a building plane, which is provided parallel to the building platform, and at least two irradiation units including a first irradiation unit and a second irradiation unit, the at least two irradiation units for locally selective solidification of the build-up material in the building plane, wherein the method comprises: subdividing the building space into at least a first and a second segment along a direction of extension of the construction building platform, where at least one of the segments is formed as a single segment or at least one of the segments is subdivided into at least two sub-segments and to each segment and/or the sub-segments of a segment, at least one irradiation unit of the at least two irradiation units is assigned; applying at least one layer of the build-up material by means of the at least one coating unit moving along the segments; activating the at least one irradiation unit associated with the respective segment or at least one of the sub-segments for selectively solidifying the segment or at least one of the associated sub-segments as soon as the at least one coating unit has left the respective segment or sub-segment; deactivating the at least one irradiation unit as soon as an irradiation period is reached and the segment or sub-segment is solidified; and stopping of the at least one coating unit in any selectively solidified segment or sub-segment of the subsequent segments as a parking segment, wherein the at least one coating unit until it reaches the parking segment only passes through segments and/or sub-segments which are selectively solidified. ### Claim 2 (depends on 1) The method according to claim 1, wherein a change in a relative position between the building platform and the at least one coating unit to provide a changed building plane is continuous or discontinuous. ### Claim 3 (depends on 1) The method according to claim 1, wherein the at least one coating unit is moved in the parking segment and deposition of another layer of build-up material is started when the at least one coating unit is able to complete one revolution to deposit a layer of build-up material without entering a not selectively solidified segment or sub-segment. ### Claim 4 (depends on 3) The method according to claim 3, wherein the at least one coating unit subsequently to the remaining segments or sub-segments deposits a complete layer of build-up material in the parking segment. ### Claim 5 (depends on 1) The method according to claim 1, wherein a duration of one revolution of the at least one coating unit, as a period of time for the at least one the coating unit to cross all segments once, is adapted such that the segment, which is intended as the parking segment, is selectively solidified within a single revolution of the at least one coating unit for applying a layer of build-up material along all segments, so that the at least one coating unit is stoppable in the selectively solidified parking segment. ### Claim 6 (depends on 1) The method according to claim 1, wherein the activating the at least one irradiation unit includes: activating the at least one irradiation unit in the respective segment for selectively irradiating the associated first or second sub-segment after the at least one coating unit has left the sub-segment to be selectively solidified, wherein the first sub-segment can be used as the parking segment while the second sub-segment is selectively solidified, or the second sub-segment can be used as the parking segment while the first sub-segment is selectively solidified.