公开(公告)号：US20230311411A1

公开(公告)日：2023-10-05

申请号：US18024756

申请日：2020-10-01

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Leticia Rubio Castillo ,  Sergio Gonzalez Martin

IPC: B29C64/209 ,  B29C64/165 ,  B29C64/393 ,  B22F10/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/30

CPC classification number: B29C64/209 ,  B29C64/165 ,  B29C64/393 ,  B22F10/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/30 ,  B22F2998/10

Abstract: In an example, a method comprises dispensing a first print agent onto a layer of build material in an additive manufacturing apparatus. The additive manufacturing apparatus may have a first print bar and a second print bar. The method may comprise determining a pattern of a first print agent to be applied to a layer of build material, dispensing a first portion of the determined pattern of the first print agent onto the layer of build material from the first print bar and dispensing a second portion of the determined pattern onto the layer of build material from the second print bar.

公开(公告)号：US20230102130A1

公开(公告)日：2023-03-30

申请号：US17904253

申请日：2020-03-20

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Ismael Fernandez Aymerich ,  Sergio Vera Hernandez

IPC: B22F10/31 ,  B29C64/386 ,  B29C64/153 ,  B22F10/28 ,  B33Y30/00 ,  B33Y50/00

Abstract: According to an example, a method of processing a print job in an additive manufacturing system comprises: applying a geometrical calibration to the print job to obtain a calibrated job; determining a height of a set of print job powder layers to be formed to generate the objects based on the calibrated print job; determining a height of a set of warming powder layers to be formed prior to the set of print job powder layers; determining an ideal height of a set of annealing powder layers to be formed after to the set of print job powder layers; and determining if the combined height of the sets of layers exceeds the maximum available height.

公开(公告)号：US20220347926A1

公开(公告)日：2022-11-03

申请号：US17621124

申请日：2020-04-28

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Alvaro Vinacua Pla ,  Antonio Chica Calaf ,  Alex Carruesco Llorens ,  Jordi Gonzalez Rogel ,  Oriol Giralt Garcia ,  Sergio Gonzalez Martin ,  Joao Hugo Ballesteros Brandao ,  Pol Martin Garcia ,  Konstantinos Kazatzis

IPC: B29C64/386 ,  B33Y50/00 ,  B22F10/80 ,  G05B19/4099 ,  G06T17/20 ,  G06T19/20

Abstract: In an example a method includes receiving, at processing circuitry, beam lattice data modelling at least part of a three-dimensional object to be generated using additive manufacturing as a beam lattice. A volumetric data model may be determined from the beam lattice data. Determining the volumetric data model may comprise dividing a volume containing the beam lattice data into sub-volumes and categorising the sub-volumes into (I) interior sub-volumes, which are wholly within a beam of the beam lattice; (ii) exterior sub-volumes which are wholly outside the beams of the beam lattice; and (ii) boundary sub-volumes which partially coincide with a beam of the beam lattice. The method may further comprise subdividing boundary sub-volumes and categorising the subdivided sub-volumes until a threshold volume size of boundary sub-volume is reached.

公开(公告)号：US20220342384A1

公开(公告)日：2022-10-27

申请号：US17240588

申请日：2021-04-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Sergio Gonzalez Martin ,  Jordi Gonzalez Rogel

IPC: G05B19/4099 ,  B33Y50/00

Abstract: In some examples, a system receives a first representation of structures to be combined for building a three-dimensional (3D) object by an additive manufacturing machine; and generates, based on the first representation, a second representation comprising voxels that represent the 3D object, the generation of the second representation comprising an evaluation of Boolean operations with respect to voxels in a voxel space to produce the second representation.

公开(公告)号：US20220314547A1

公开(公告)日：2022-10-06

申请号：US17633607

申请日：2019-10-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Victor Diego Gutierrez

IPC: B29C64/386 ,  B33Y50/00 ,  G05B19/4099

Abstract: Described is an apparatus, a method and a 3D printer to: based on a first representation representing a 3D object to be printed using a build material, the object comprising a body having a surface area and a volume, determine a parameter representing a relationship between the surface area and the volume of the body; determine a scaling factor using the determined parameter; and generate a second representation representing the 3D object in which the 3D object is scaled according to the scaling factor.

公开(公告)号：US11453169B2

公开(公告)日：2022-09-27

申请号：US17285055

申请日：2019-04-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Ismael Fernandez Aymerich

IPC: B29C64/386 ,  B33Y50/02

Abstract: Certain examples relate to generating output print data representing at least one object. Output print data is generated by performing a geometric transformation on a part of object model data representing the identified region. The object model data represents the at least one object to be printed. The geometric transformation may use a transformation parameter which is determined based at least on the object model data and object property data. The object property data identifies a region of the at least one object and associates it with a selected physical property.

公开(公告)号：US20220128970A1

公开(公告)日：2022-04-28

申请号：US17417781

申请日：2019-07-12

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sergio Gonzalez Martin ,  Jordi Gonzalez Rogel ,  Jordi Sanroma Garrit ,  Jordi Raventos Catasus

IPC: G05B19/4099

Abstract: In an example, a method includes receiving, by at least one processor, object model data describing a geometry of at least part of at least one object to be generated using additive manufacturing. The object model data defines a first geometrical transformation to be applied to the object model data. It may be determined if a second geometrical transformation is to be applied to the object model data. If a second geometrical transformation is to be applied, the first and second geometrical transformations may be applied to the object model data to determine modified object model data. Otherwise, the first geometrical transformation may be applied to the object geometry to determine modified object model data.

公开(公告)号：US20220113700A1

公开(公告)日：2022-04-14

申请号：US17417784

申请日：2019-06-26

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Leticia Rubio Castillo

IPC: G05B19/4099

Abstract: In an example, a method includes receiving, at least one processor, voxelised object model data describing at least part of an intended fabrication chamber content to be generated using additive manufacturing. The voxelised object model data may be derived from a first data set modelling a first object as 2D slices and a second data set modelling a second object as a 3D mesh. Data within the voxelised object model data which is derived from the first data set may be identified, and a geometrical transformation may be applied thereto.

公开(公告)号：US20210370604A1

公开(公告)日：2021-12-02

申请号：US15734602

申请日：2019-01-31

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jordi Roca Vila ,  Sergio Gonzalez Martin ,  Josep M. Asensio Buchaca

IPC: B29C64/386 ,  B33Y50/00 ,  G05B19/4099

Abstract: A method comprising obtaining an input, wherein the input comprises a three-dimensional representation of an object, the three-dimensional representation comprising a plurality of portions, wherein each of the plurality of portions has associated portion properties, and obtaining printer properties of a plurality of printing devices. The printer properties correspond to at least one feature of the printing devices; and the method assigns each of the plurality of portions to respective ones of the plurality of printing devices by comparing the portion properties with the printer properties, and assigning the portion to one of the printing devices based on the comparison, such that each of the plurality of portions has a respective assigned printing device. Each of the portions are then provided to its respective assigned printing device.

公开(公告)号：US20210339475A1

公开(公告)日：2021-11-04

申请号：US15734574

申请日：2019-01-24

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sergio Gonzalez Martin ,  Jordi Gonzalez Rogel ,  Roger Tarres Noguera

IPC: B29C64/386 ,  B33Y50/00 ,  B22F10/80 ,  G05B19/4099

Abstract: In an example, a method includes receiving, at a processor, object model data representing an object that is to be generated by an additive manufacturing apparatus by fusing build material within a fabrication chamber wherein a dimensional compensation has been applied to the object model data based on an expected object placement position. The method may comprise receiving, from the additive manufacturing apparatus, an indication of an object generation placement position within a fabrication chamber where the object is to be generated and comparing, by the processor, the expected object placement position with the object generation placement position. If the expected object placement position matches the object generation placement position, the method may comprise determining, by the processor, that the dimensional compensation is valid and otherwise determining, by the processor, that the dimensional compensation is invalid.