US 12,013,683 B2
Geometrical compensations for additive manufacturing
Victor Diego Gutierrez, Sant Cugat del Valles (ES); Jordi Sanroma Garrit, Sant Cugat del Valles (ES); Manuel Freire Garcia, Sant Cugat del Valles (ES); and Enrique Gurdiel Gonzalez, Sant Cugat del Valles (ES)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Appl. No. 17/267,389
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
PCT Filed Jan. 31, 2019, PCT No. PCT/US2019/016011
§ 371(c)(1), (2) Date Feb. 9, 2021,
PCT Pub. No. WO2020/159508, PCT Pub. Date Aug. 6, 2020.
Prior Publication US 2021/0349440 A1, Nov. 11, 2021
Int. Cl. B33Y 50/00 (2015.01); B22F 10/80 (2021.01); B29C 64/386 (2017.01); G05B 19/4099 (2006.01); G06F 30/00 (2020.01); G06F 30/20 (2020.01); G06F 113/10 (2020.01); G06T 17/00 (2006.01)
CPC G05B 19/4099 (2013.01) [B22F 10/80 (2021.01); B29C 64/386 (2017.08); B33Y 50/00 (2014.12); G06F 30/00 (2020.01); G06F 30/20 (2020.01); G06T 17/00 (2013.01); G05B 2219/35117 (2013.01); G05B 2219/49008 (2013.01); G06F 2113/10 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a processor, object model data representing an object to be generated by an additive manufacturing apparatus by selectively fusing build material within a fabrication chamber, the object model data comprising a mesh model including data describing a first and second planar faces of the object;
determining, by the processor, a geometrical compensation vector for the object model data, the geometrical compensation vector having components for respective orthogonal axes of the fabrication chamber;
determining, by the processor, a first geometrical compensation for the first planar face as a product of the geometrical compensation vector and a first normal vector of the first planar face;
determining, by the processor, a second geometrical compensation for the second planar face as a product of the geometrical compensation vector and a second normal factor of the second planar face;
generating by the processor, modified object model data, including:
applying the first geometrical compensation to one or more locations on the first planar face;
applying the second geometrical compensation to one or more locations on the second planar face; and
causing, by the processor, the additive manufacturing apparatus to generate the object in accordance with the modified object model data.