US 12,109,761 B2
Geometrical compensation in additive manufacturing
Enrique Gurdiel Gonzalez, Sant Cugat del Valles (ES); Manuel Freire Garcia, Sant Cugat del Valles (ES); and Quim Muntal Diaz, Sant Cugat del Valles (ES)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Appl. No. 17/296,521
Filed by HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US)
PCT Filed Apr. 30, 2019, PCT No. PCT/US2019/029851
§ 371(c)(1), (2) Date May 24, 2021,
PCT Pub. No. WO2020/222791, PCT Pub. Date Nov. 5, 2020.
Prior Publication US 2022/0016845 A1, Jan. 20, 2022
Int. Cl. B29C 64/00 (2017.01); B29C 64/393 (2017.01); G01B 11/24 (2006.01); B33Y 10/00 (2015.01); B33Y 50/02 (2015.01)
CPC B29C 64/393 (2017.08) [G01B 11/24 (2013.01); B33Y 10/00 (2014.12); B33Y 50/02 (2014.12)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining, by a processor, a first measurement value of a first version of an object, the first version generated using additive manufacturing apparatus and based on object model data;
obtaining, by a processor, a second measurement value of a second version of the object, the second version generated using the additive manufacturing apparatus and based on the object model data to which a geometrical compensation parameter value has been applied;
determining, by the processor, a difference between the first and second measurement values;
determining, by the processor, a result of application of the geometrical compensation parameter value to the object model data on which basis the second version of the object has been generated, using the difference between the first and second measurement values;
determining, using by the processor, a corrected geometrical compensation parameter value based on the determined result; and
generating, by the processor using the additive manufacturing apparatus, a target object based on target object model data to which the corrected geometrical compensation parameter value has been applied.