# US 11,440,264 B2 · Three-dimensional shaped article manufacturing method and data processing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,264 B2 - Document ID: US11440264B2 - Status: Granted - Kind: B2 - Application number: 17/073,452 - Filed: 2020-10-19 - Published: 2021-04-22 - Granted: 2022-09-13 - Earliest claimed: 2019-10-21 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Shigeru Yamazaki - Web page: https://patentgrep.com/patent/US11440264B2 ## CPC - B29C 64/393: for controlling or regulating additive manufacturing processes - B22F 10/00: Additive manufacturing of workpieces or articles from metallic powder (apparatus or devices therefor B22F12/00) - B22F 10/22: Direct deposition of molten metal - B22F 10/85: for controlling or regulating additive manufacturing processes - B22F 12/10: Auxiliary heating means - B22F 12/30: Platforms or substrates - B22F 12/55: Two or more means for feeding material - B29C 64/118: using filamentary material being melted, e.g. fused deposition modelling [FDM] - B33Y 10/00: Processes of additive manufacturing - B33Y 50/02: for controlling or regulating additive manufacturing processes - B22F 10/18: by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF] - B22F 10/80: Data acquisition or data processing - B22F 12/226: {for rotary motion} - B22F 12/33: translatory in the deposition plane - B22F 12/53: Nozzles - B22F 12/57: Metering means - 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) - B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER - 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 A three-dimensional shaped article manufacturing method includes: a first shaping step of forming a first layer in contact with a stage provided with a recess portion by moving a discharge unit while discharging a first shaping material; and a second shaping step of stacking a second layer on the first layer by moving the discharge unit while discharging a second shaping material from the discharge unit toward the first layer, in which the first shaping step includes acquiring first data including a first route; acquiring stage data indicating a position of the recess portion; a first data changing step of generating first changed data based on the first data such that an overlap degree between the first changed route and the recess portion is larger than an overlap degree between the first route and the recess portion, and forming the first layer according to the first changed data. ## Claims ### Claim 1 A three-dimensional shaped article manufacturing method comprising: a first shaping step of forming a first layer in contact with a stage provided with a recess portion by moving a discharge unit while discharging a first shaping material from the discharge unit toward the stage; and a second shaping step of stacking a second layer on the first layer by moving the discharge unit while discharging a second shaping material from the discharge unit toward the first layer, wherein the first shaping step includes acquiring first data including a first route that is a route on which the discharge unit moves while discharging the first shaping material, acquiring stage data indicating a position of the recess portion in the stage, a first data changing step of generating, based on the first data and the stage data, first changed data including a first changed route obtained by changing the first route, that is, generating the first changed data based on the first data such that an overlap degree between the first changed route and the recess portion is larger than an overlap degree between the first route and the recess portion, and forming the first layer according to the first changed data. ### Claim 2 (depends on 1) The three-dimensional shaped article manufacturing method according to claim 1, wherein the first data includes deposition amount information representing an amount of the first shaping material discharged from the discharge unit per unit movement amount of the discharge unit on the first route, the stage data includes information on a diameter of the recess portion, and in the first data changing step, the overlap degree is obtained based on a line width of the first shaping material determined based on the deposition amount information and information on the diameter of the recess portion, and the first changed data is generated by changing the first route. ### Claim 3 (depends on 1) The three-dimensional shaped article manufacturing method according to claim 1, wherein in the first shaping step, a deposition amount representing an amount of the first shaping material discharged from the discharge unit per unit movement amount of the discharge unit on a route in the first changed route overlapping the recess portion is larger than a deposition amount on a route in the first changed route not overlapping the recess portion. ### Claim 4 (depends on 1) The three-dimensional shaped article manufacturing method according to claim 1, wherein in the first data changing step, the first route is changed to the first changed route such that the overlap degree between the first changed route and the recess portion is larger than the overlap degree between the first route and the recess portion and is less than 100%. ### Claim 5 (depends on 1) The three-dimensional shaped article manufacturing method according to claim 1, wherein the first shaping material and the second shaping material are different types of materials. ### Claim 6 (depends on 1) The three-dimensional shaped article manufacturing method according to claim 1, wherein the first shaping material and the second shaping material are the same type of material. ### Claim 7 (depends on 1) The three-dimensional shaped article manufacturing method according to claim 1, wherein the second shaping step includes acquiring second data including a second route on which the discharge unit moves while discharging the second shaping material, and generating second changed data including a second changed route by changing the second route based on a change of the route from the first route to the first changed route in the first data changing step, and the second layer is formed on the first layer according to the second changed data. ### Claim 8 A data processing device configured to process data for shaping a three-dimensional shaped article, wherein the data processing device performs acquiring first data including a first route that is a route on which a discharge unit that discharges a shaping material toward a stage provided with a recess portion moves while discharging a first shaping material, acquiring stage data indicating a position of the recess portion on the stage, and generating, based on the first data and the stage data, first changed data including a first changed route obtained by changing the first route from the first data, and an overlap degree between the first changed route and the recess portion is larger than an overlap degree between the first route and the recess portion.