公开(公告)号：US20220026876A1

公开(公告)日：2022-01-27

申请号：US17296901

申请日：2019-04-30

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

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

IPC: G05B19/4099 ,  G05B19/404 ,  B29C64/386 ,  B33Y50/00

Abstract: In an example, a machine-readable medium stores instructions which, when executed by a processor, cause the processor to: update a 3D printing geometrical compensation model with at least one correction determined using a combination of a dimensional correction determined from measurements of objects generated using a first geometrical compensation and a dimensional correction determined from measurements of objects generated using a modified version of the first geometrical compensation.

公开(公告)号：US20220016845A1

公开(公告)日：2022-01-20

申请号：US17296521

申请日：2019-04-30

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

Inventor： Enrique Gurdiel Gonzalez ,  Manuel Freire Garcia ,  Quim Muntal Diaz

IPC: B29C64/393 ,  G01B11/24

Abstract: In an example, a method may include obtaining a first measurement of a first object generated using additive manufacturing apparatus based on object model data and obtaining a second measurement of a second object generated using the additive manufacturing apparatus based on object model data to which a first geometrical compensation parameter has been applied. An effect of the first geometrical compensation parameter may be determined based on the first and second measurements and, based on the determined effect, the first geometrical compensation parameter may be evaluated.

公开(公告)号：US10981334B2

公开(公告)日：2021-04-20

申请号：US15745830

申请日：2015-09-30

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

Inventor： Carmina Querol Esparch ,  Alejandro Manuel De Pena ,  Manuel Freire Garcia

IPC: B29C64/393 ,  B29C64/264 ,  B29C64/295 ,  B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C67/00 ,  B29C71/02 ,  B29C64/30 ,  B29C64/364 ,  B29K101/12

Abstract: An example method for cooling a build volume is described. In one implementation, a heating mechanism is set to a temperature identified based on the build material information, and the build volume is heated using the heating mechanism for a time period identified based on the build material information.

公开(公告)号：US20200223143A1

公开(公告)日：2020-07-16

申请号：US16246038

申请日：2019-01-11

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

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

IPC: B29C64/393

Abstract: In an example, a method includes generating a training dataset for an inference model to generate dimensional modifications to apply to object models to compensate for departures from model dimensions in objects generated using additive manufacturing based on those object models. Generating the training dataset may include acquiring, for each of a plurality of generated objects, (i) an indication of a first dimensional inaccuracy and a second dimensional inaccuracy, wherein the first and second dimensional inaccuracies are acquired in a direction of a first axis and relate to respective first and second object dimensions; and (ii) an indication of object placement within a fabrication chamber during object generation.

公开(公告)号：US12251881B2

公开(公告)日：2025-03-18

申请号：US17757788

申请日：2020-01-16

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

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

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

Abstract: In an example, a method includes obtaining a compensation model characterising a relationship between a location of an object within a fabrication chamber of an additive manufacturing apparatus and a geometrical compensation to be applied to a model of said object, wherein different geometrical compensation values are associated with different locations. In some examples the method further includes determining a magnitude of a dimension parameter of each object of a set of objects to be generated in a build operation. The method may include determining a spatial arrangement of objects to be generated within the build volume, based on the magnitude of the dimension parameters and the geometrical compensation values for an intended location of object generation in the spatial arrangement.

公开(公告)号：US12197187B2

公开(公告)日：2025-01-14

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: G05B19/40 ,  B22F10/14 ,  B22F10/80 ,  G05B19/4099 ,  G06F30/23

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：US11993022B2

公开(公告)日：2024-05-28

申请号：US17252026

申请日：2019-03-29

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

Inventor： Quim Muntal Diaz ,  Jordi Sanroma Garrit ,  Manuel Freire Garcia

IPC: B29C64/386 ,  B29C64/182 ,  B33Y50/00 ,  G05B19/4099 ,  B29C64/165

CPC classification number: B29C64/386 ,  B29C64/182 ,  B33Y50/00 ,  G05B19/4099 ,  B29C64/165 ,  G05B2219/35134 ,  G05B2219/49023

Abstract: In an example a tangible machine-readable medium stores instructions which, when executed by a processor, cause the processor to determine an object generation arrangement for additive manufacturing based on a separation distance between objects, wherein the separation distance varies based on an intended location of object generation.

公开(公告)号：US11954413B2

公开(公告)日：2024-04-09

申请号：US17263216

申请日：2018-12-14

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

Inventor： Quim Muntal Diaz ,  Manuel Freire Garcia ,  Enrique Gurdiel Gonzalez

IPC: G06F30/20 ,  B29C64/386 ,  B33Y50/02 ,  G06F30/10

CPC classification number: G06F30/20 ,  G06F30/10 ,  B29C64/386 ,  B33Y50/02

Abstract: In an example, a tangible machine-readable medium stores instructions which, when executed by a processor, cause the processor to evaluate a plurality of possible object generation arrangements based on a default separation distance and an enhanced separation distance, wherein the enhanced separation distance is used to assess predefined object sub-portions.

公开(公告)号：US20240066802A1

公开(公告)日：2024-02-29

申请号：US17823767

申请日：2022-08-31

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

Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Alejandro Manuel de Pena Hempel ,  Ismael Fernandez Aymerich

IPC: B29C64/393 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B33Y50/02 ,  B29C64/165

Abstract: In some examples, a system receives measurement data from measurements of first three-dimensional (3D) parts formed on a build bed of an additive manufacturing machine with different contone levels of a liquid agent, and determines, based on the measurement data, geometrical deviations of the first 3D parts from a baseline geometrical property. The system generates, based on the determined geometrical deviations, a model that correlates contone levels of the liquid agent to corresponding geometrical deviations, the model for use in an adjustment of the liquid agent based on a contone level adjustment to compensate for a geometrical deviation when building second 3D parts with the additive manufacturing machine or another additive manufacturing machine.

公开(公告)号：US20230040621A1

公开(公告)日：2023-02-09

申请号：US17904752

申请日：2020-03-30

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

Inventor： Julia Almacellas Visa ,  Manuel Freire Garcia ,  Victor Diego Gutierrez

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

Abstract: An example method includes obtaining a geometric compensation profile characterising a relationship between a location of an object within a first fabrication volume having a first depth of build material and a geometrical compensation to be applied to a model of said object. The method further includes determining that a first object is to be generated in a first build operation having a second fabrication volume which has a second depth. The method may further include determining a geometrical compensation to be applied to a model of the first object by: determining a first offset of the first object from the top of the second fabrication volume; identifying the geometrical compensation value associated with a location having the first offset from the top of the first fabrication volume; and determining the compensation to be applied to the model of the first object based on the identified geometrical compensation value.