公开(公告)号：US12013683B2

公开(公告)日：2024-06-18

申请号：US17267389

申请日：2019-01-31

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

Inventor： Victor Diego Gutierrez ,  Jordi Sanroma Garrit ,  Manuel Freire Garcia ,  Enrique Gurdiel Gonzalez

IPC: B33Y50/00 ,  B22F10/80 ,  B29C64/386 ,  G05B19/4099 ,  G06F30/00 ,  G06F30/20 ,  G06F113/10 ,  G06T17/00

CPC classification number: G05B19/4099 ,  B22F10/80 ,  B29C64/386 ,  B33Y50/00 ,  G06F30/00 ,  G06F30/20 ,  G06T17/00 ,  G05B2219/35117 ,  G05B2219/49008 ,  G06F2113/10

Abstract: In an example, a method includes receiving, at least one processor, object model data representing at least a portion of an object that is to be generated by an additive manufacturing apparatus by fusing build material within a fabrication chamber, wherein the object model data comprises a mesh model comprising data describing a surface of the object. A geometrical compensation vector may be determined for the object model data, the geometrical compensation vector having a first component applying to a first axis of the fabrication chamber and a second component applying to a second axis of the fabrication chamber. A geometrical compensation to apply to at least one location on the surface of the object may be determined by determining a product of the geometrical compensation vector and a vector indicative of the normal of the object surface at the location and the determined geometrical compensation may be applied to the object model data to generate modified object model data.

公开(公告)号：US11989487B2

公开(公告)日：2024-05-21

申请号：US17295346

申请日：2019-04-30

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

Inventor： Enrique Gurdiel Gonzalez ,  Jordi Sanroma Garrit ,  Manuel Freire Garcia

IPC: G06F30/10 ,  B29C64/393 ,  B33Y50/00

CPC classification number: G06F30/10 ,  B29C64/393 ,  B33Y50/00

Abstract: In an example, a machine-readable medium stores instructions which, when executed by a processor may cause the processor to modify data for characterising geometrical modifications for use by each of a plurality of additive manufacturing apparatus, wherein a modification for a particular additive manufacturing apparatus is based on dimensions of objects generated by that apparatus.

公开(公告)号：US11941758B2

公开(公告)日：2024-03-26

申请号：US17251962

申请日：2019-03-21

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

Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Jordi Roca Vila

IPC: G06T17/20 ,  B29C64/393 ,  B33Y50/02

CPC classification number: G06T17/20 ,  B29C64/393 ,  B33Y50/02

Abstract: A method of processing merged 3D geometric information in a 3D printing system is described that receives a 3D object model file representing at least two physical 3D parts to be printed, wherein the 3D object model file comprises 3D geometric information for the at least two physical 3D parts, wherein the 3D geometric information is encoded as at least one logical 3D part, wherein at least one of the at least one logical 3D part comprises merged 3D geometric information for at least a subset of the at least two physical 3D parts. From the 3D object model file, a separate set of 3D geometric information for each of the at least two physical 3D parts is extracted and each separate set of 3D geometric information is processed individually before printing the physical 3D parts.

公开(公告)号：US11840024B2

公开(公告)日：2023-12-12

申请号：US17284712

申请日：2019-04-23

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

Inventor： Roger Fadurdo Orellana ,  Pol Fornos Martinez ,  Salvador Sanchez Ribes ,  Ismael Fernandez Aymerich ,  Manuel Freire Garcia

IPC: B29C67/00 ,  B29C64/40 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/165 ,  B22F10/14 ,  B22F10/85 ,  B22F12/55

CPC classification number: B29C64/40 ,  B22F10/14 ,  B22F10/85 ,  B22F12/55 ,  B29C64/165 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

Abstract: A system includes a controller to receive data corresponding to an object or slices of the object to be generated by a 3D printer, wherein the 3D printer includes an array of printhead nozzles to selectively eject a print agent on a layer of build material in a build chamber having a build chamber wall, the array of printhead nozzles spanning substantially the full width of the build chamber and moveable along a length of the build chamber. The controller to generate first print data used to generate layers of the object based on the received object data, and to generate second print data used to generate layers of a sacrificial barrier located between the object and the build chamber wall, the second print data is generated such that different parts of the sacrificial barrier are generated using a different plurality of nozzles of the array of printhead nozzles.

公开(公告)号：US11813797B2

公开(公告)日：2023-11-14

申请号：US17052106

申请日：2018-10-08

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

Inventor： Sergio Gonzalez Martin ,  Jordi Roca Vila ,  Manuel Freire Garcia

IPC: B29C64/393 ,  B33Y50/00 ,  B29C64/386 ,  G06F30/20 ,  B22F10/00 ,  B22F10/28 ,  B22F10/38 ,  B22F10/80

CPC classification number: B29C64/393 ,  B22F10/80 ,  B29C64/386 ,  B33Y50/00 ,  G06F30/20 ,  B22F10/28 ,  B22F10/38

Abstract: In an example, mesh model data representing at least a portion of a print job to be generated by an additive manufacturing apparatus by solidifying build material is received at a processor. Using a processor and based on the mesh model data, it is validated whether the three-dimensional print job described by the mesh model data conforms with at least one of material-dependent shape constraints and apparatus-dependent shape constraints of the additive manufacturing apparatus. If the result of the validation is positive, the mesh model data is rendered, using a processor for manufacturing the three-dimensional print job by an additive manufacturing apparatus. If the result of the validation is negative, a predetermined action is performed.

公开(公告)号：US11568096B2

公开(公告)日：2023-01-31

申请号：US16605322

申请日：2018-01-29

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

Inventor： Sergio Puigardeu Aramendia ,  Manuel Freire Garcia ,  Jordi Sanroma Garrit

IPC: G06T15/00 ,  G06F30/12 ,  G06T15/10 ,  G06T19/20 ,  G06T15/04 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

Abstract: A method of adjusting a three-dimensional representation of an object to be manufactured in an additive manufacturing process comprises determining a processing operation to be applied to the object, and adjusting the three-dimensional representation of the object based on adjustment parameters associated with the processing operation.

公开(公告)号：US11458687B2

公开(公告)日：2022-10-04

申请号：US16605779

申请日：2018-04-24

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

Inventor： Pol Fornos Martinez ,  Ismael Fernandez Aymerich ,  Manuel Freire Garcia

IPC: G06F19/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165

Abstract: In certain examples, a method comprises determining a fusing area density distribution of a build layer from build data relating to a build layer of a three-dimensional model to be printed by an additive manufacturing system. The method comprises, in response to a determination that a region of the build layer has a fusing area density outside of a fusing area density tolerance window, modifying the build layer to define a build layer in which the region has a fusing area density that is within the fusing area density tolerance window.

公开(公告)号：US11338520B2

公开(公告)日：2022-05-24

申请号：US16605208

申请日：2018-07-26

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

Inventor： Pol Fornos Martinez ,  Juan Antonio Victorio Ferrer ,  Manuel Freire Garcia

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/232 ,  B29C64/245

Abstract: In one example, an apparatus comprising a controller to instruct a build platform to support a plurality of layers of build material in a build zone, wherein the build platform is moveable during a build of a three-dimensional object to change the size of the build zone, wherein the controller is to determine respective displacements of the build platform to successively receive each of the plurality of layers of build material in the build zone during the build, wherein at least one of the respective displacements is based on data determined from a three-dimensional object obtained in a previous build.

公开(公告)号：US20220105685A1

公开(公告)日：2022-04-07

申请号：US17417783

申请日：2019-06-28

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

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

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

Abstract: In an example, a method includes receiving, by at least one processor, object model data describing a first object to be generated in additive manufacturing and an intended object generation location of the first object, wherein the intended object generation location is a relative location within a generic fabrication chamber. The method may further comprise determining, by at least one processor, a location for generation of the first object in a first fabrication chamber, wherein the first fabrication chamber is an intended fabrication chamber of object generation. The location may be an absolute location in the first fabrication chamber which corresponds to the relative location within the generic fabrication chamber.

公开(公告)号：US20220075348A1

公开(公告)日：2022-03-10

申请号：US17417972

申请日：2019-04-30

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

Inventor： Victor Diego Gutierrez ,  Manuel Freire Garcia ,  Enrique Gurdiel Gonzalez

IPC: G05B19/4093 ,  B33Y50/00 ,  B29C64/386

Abstract: In an example, a method includes obtaining an indication of a deviation from an expected dimension of at least one dimension of an object generated using an additive manufacturing apparatus. A geometrical compensation model to apply to object model data for generating objects using additive manufacturing to compensate for anticipated deviations in dimensions may be determined from the obtained indication. The geometrical compensation model may comprise a first value to apply to object model data to modify a specification of an external dimension; and a second, different, value to apply to object model data to modify a specification of an internal dimension.