公开(公告)号：US20180117897A1

公开(公告)日：2018-05-03

申请号：US15545038

申请日：2015-04-21

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

Inventor： Jun Zeng ,  Pu Huang ,  Sebastia Cortes ,  Scott White ,  Juan Manuel Garcia ,  Peter Morovic ,  Jan Morovic

IPC: B33Y50/02 ,  B29C64/393

CPC classification number: B33Y50/02 ,  B29C64/393 ,  G06T17/005

Abstract: In some examples, octree serialization can include non-transitory machine-readable medium storing instructions, the instructions executable by a processing resource to evaluate two or more nodes sequentially in an octree structure until a leaf node is reached, wherein the two or more nodes include at least one non-leaf node, and generate a serialized octree document based on a respective node identifier in a header associated with each node of the two or more nodes.

公开(公告)号：US20170334138A1

公开(公告)日：2017-11-23

申请号：US15521882

申请日：2015-01-28

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

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Yngvar Rossow

IPC: B29C64/295 ,  B33Y30/00

CPC classification number: B29C64/295 ,  B29C64/20 ,  B29C64/264 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02

Abstract: A heater may be to heat build material during a three-dimensional print job. A sensor may be to measure a temperature distribution of the build material. A processor may be to obtain first temperature data representing a first temperature distribution of build material associated with normal functioning of the heater. The processor may be to obtain second temperature data representing a second temperature distribution of the build material to be measured by the temperature sensor during the three-dimensional print job. The processor may be to compare the first temperature distribution to the second temperature distribution. The processor may be to determine whether the heater is malfunctioning based on the comparison.

公开(公告)号：US11275353B2

公开(公告)日：2022-03-15

申请号：US16862967

申请日：2020-04-30

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

Inventor： Jun Zeng ,  Sebastia Cortes ,  Scott A. White

IPC: G05B19/4099 ,  G06T19/20 ,  G06T17/00 ,  B33Y50/00 ,  G06F30/20 ,  G06T15/08

Abstract: An example technique for creating a voxel representation of a three dimensional (3-D) object can include obtaining a shape specification of a 3-D object and a number of 3-D objectives. The example technique for creating a voxel representation of the 3-D object can also include creating a voxel representation of the 3-D object by assigning a material type from a number of material types to each voxel of the voxel representation that defines the 3-D object. The example technique creating a voxel representation of a 3-D object can also include evaluating the voxel representation to determine whether the number of objectives are met.

公开(公告)号：US11113467B2

公开(公告)日：2021-09-07

申请号：US16095495

申请日：2016-05-12

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

Inventor： Sergio Gonzalez ,  Jordi Gonzalez ,  Sebastia Cortes

IPC: G06F16/30 ,  G06F40/221 ,  B29C64/386 ,  B33Y50/00 ,  G06K15/02 ,  G06F30/00 ,  G06F40/258 ,  G06F119/18 ,  B33Y40/00 ,  B33Y50/02

Abstract: A method is described in which a 3D printing file is processed, the 3D printing file having a header and including a plurality of compressed files. The method comprises reading a content of the header of the 3D printing file, identifying, based on the header content, a relation file among the plurality of compressed files, identifying, based on the relation file, a main 3D model file among the plurality of compressed files. Further the method comprises creating, by uncompressing the main 3D model file, a data stream, and analyzing, with a parser, the data stream, thereby directly processing the main 3D model file when being uncompressed.

公开(公告)号：US10529126B2

公开(公告)日：2020-01-07

申请号：US16212204

申请日：2018-12-06

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

Inventor： Jun Zeng ,  Pu Huang ,  Sebastia Cortes ,  Scott A. White ,  Gary J. Dispoto

IPC: G06T17/00

Abstract: An example technique for generating slice data from a voxel representation can include obtaining a shape specification of the 3-D object. The example technique for generating slice data from a voxel representation can also include obtaining a material specification of the 3-D object. The example technique for generating slice data from a voxel representation can also include merging the shape specification and the material specification to create a voxel representation of the 3-D object, wherein each voxel in the voxel representation includes a plurality of data types. The example technique for generating slice data from a voxel representation can also include generating slice data from the voxel representation, wherein the slice data provides a higher resolution than that provided by the voxel representation using the plurality of data types.

公开(公告)号：US10678217B2

公开(公告)日：2020-06-09

申请号：US15544956

申请日：2015-04-20

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

Inventor： Jun Zeng ,  Sebastia Cortes ,  Scott A. White

IPC: G05B19/4099 ,  G06T19/20 ,  G06T17/00 ,  B33Y50/00 ,  G06F30/20 ,  G06T15/08

Abstract: An example technique for creating a voxel representation of a three dimensional (3-D) object can include obtaining a shape specification of a 3-D object and a number of 3-D objectives. The example technique for creating a voxel representation of the 3-D object can also include creating a voxel representation of the 3-D object by assigning a material type from a number of material types to each voxel of the voxel representation that defines the 3-D object. The example technique creating a voxel representation of a 3-D object can also include evaluating the voxel representation to determine whether the number of objectives are met.

公开(公告)号：US10538033B2

公开(公告)日：2020-01-21

申请号：US15515628

申请日：2014-09-30

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

Inventor： Sebastia Cortes ,  Jun Zeng ,  Xavier Vilajosana

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  G05B19/042 ,  G06F21/52 ,  G06F21/62

Abstract: A method and apparatus partition a AM build bed of a AM unit into a first virtual build bed and a second virtual build bed. The first virtual build bed is assigned to a first user while the second virtual build bed assigned to a second user. A first digital file for a first object to be generated in the first virtual build bed is received from the first user. A second digital file for a second object to be generated in the second virtual build bed is receive from the second user. Output signals are transmitted to the AM unit to generate the first object in the first virtual build bed and the second object in the second virtual build bed during a build cycle.

公开(公告)号：US20190095418A1

公开(公告)日：2019-03-28

申请号：US16095495

申请日：2016-05-12

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

Inventor： Sergio Gonzalez ,  Jordi Gonzalez ,  Sebastia Cortes

IPC: G06F17/27 ,  B29C64/386 ,  G06F17/50

Abstract: A method is described in which a 3D printing file is processed, the 3D printing file having a header and including a plurality of compressed files. The method comprises reading a content of the header of the 3D printing file, identifying, based on the header content, a relation file among the plurality of compressed files, identifying, based on the relation file, a main 3D model file among the plurality of compressed files. Further the method comprises creating, by uncompressing the main 3D model file, a data stream, and analyzing, with a parser, the data stream, thereby directly processing the main 3D model file when being uncompressed.

公开(公告)号：US20190091932A1

公开(公告)日：2019-03-28

申请号：US16085478

申请日：2016-03-18

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

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Pablo Dominguez

IPC: B29C64/343 ,  B29C64/165 ,  B29C64/321 ,  B29C64/245 ,  B29C64/209

Abstract: Measures for use in an additive manufacturing system. The temperature of at least one build material delivery hole in a printbed area of the system is measured. An emissivity of the at least one build material delivery hole is compared with a known emissivity of a build material being used in additive manufacturing by the system at the measured temperature. In response to the comparison indicating a difference in emissivity, it is determined that at least a portion of the at least one build material delivery hole is not covered by build material.

公开(公告)号：US20180186079A1

公开(公告)日：2018-07-05

申请号：US15568405

申请日：2015-09-28

Applicant: Xavier VILAJOSANA ,  Sebastia CORTES ,  Yngvar ROSSOW ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Sebastia Cortes ,  Yngvar Rossow

IPC: B29C64/393 ,  B29C64/165

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of controlling a heating sub-system in an additive manufacturing system. The method comprising receiving thermal imaging information from a temperature sensing subsystem, receiving additive manufacturing media concentration information from an additive manufacturing media concentration information database, on the basis of the received thermal imaging information and additive manufacturing media concentration information, for each pixel area in the plurality of pixel areas, determining the temperature for each additive manufacturing media agent in the plurality of additive manufacturing media agents which is present in the respective pixel area, and on the basis of the determined temperatures for each pixel area and additive manufacturing media agent, controlling the power to a heating subsystem employed in the given additive manufacturing process.