公开(公告)号：US20210405612A1

公开(公告)日：2021-12-30

申请号：US16605227

申请日：2018-07-25

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

Inventor： Pol Fornos Martinez ,  Sergio Puigardeu Aramendia ,  Ismael Fernandez Aymerich

IPC: G05B19/4099 ,  B33Y50/00 ,  B33Y80/00 ,  B29C64/386 ,  B22F10/80

Abstract: In an example, a method includes receiving, by at least one processor, object model data, the object model data describing at least part of an object to be generated in additive manufacturing. Pattern data is also received, wherein the pattern data describes a pattern of variable opacity intended to be formed internally to the object. Object generation instructions for generating an intermediate layer of the object comprising the pattern of variable opacity may be determined by at least one processor.

公开(公告)号：US20210331405A1

公开(公告)日：2021-10-28

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

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：US20210283849A1

公开(公告)日：2021-09-16

申请号：US16605359

申请日：2018-03-28

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

Inventor： Ismael Fernandez Aymerich ,  Sergio Puigardeu Aramendia ,  Pol Fornos Martinez

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

Abstract: A method is disclosed. The method may comprise obtaining, using a processor, design data representing an object to be generated in a fabrication chamber of an additive manufacturing apparatus. The method may further comprise determining, based on the design data, that a part of the object is to be generated within a predefined portion of the fabrication chamber. The method may further comprise responsive to said determining, generating, using a processor, data representing an ancillary element to be generated in the predefined portion between the part of the object and a wall of the fabrication chamber. An apparatus and a machine-readable medium are also disclosed.

公开(公告)号：US10195788B2

公开(公告)日：2019-02-05

申请号：US15562691

申请日：2015-05-29

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

Inventor： Salvador Sanchez Ribes ,  David Ramirez Muela ,  Pol Fornos Martinez ,  Sergio Puigardeu Aramendia

IPC: B29C64/393 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/386

Abstract: In some examples, an agent distributor may be to selectively deliver agent through nozzles of the agent distributor to portions of layers of build material in patterns derived from agent delivery control data representing slices of a three-dimensional object such that the portions are to solidify to form the slices in accordance with the patterns. While generating the three-dimensional object, the agent distributor may be primed such that a particle of the build material is removed from the agent distributor through at least one of the nozzles.

公开(公告)号：US20230278290A1

公开(公告)日：2023-09-07

申请号：US17767715

申请日：2019-10-29

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

Inventor： Pol Fornos Martinez ,  Arnau Codina Saborit ,  Ismael Fernandez Aymerich

IPC: B29C64/386 ,  B29C64/182 ,  B29C64/255

CPC classification number: B29C64/386 ,  B29C64/182 ,  B29C64/255 ,  B33Y10/00

Abstract: Object model data defining a plurality of objects to be built by a three-dimensional printing apparatus is obtained. The plurality of objects to be built are arranged in a configuration to be printed with objects having a first property arranged in a first separable region of a build volume and objects having a second property arranged in a second separable region of the build volume. Print data defining the configuration of the plurality of objects to be built is generated.

公开(公告)号：US20230060712A1

公开(公告)日：2023-03-02

申请号：US17758092

申请日：2020-01-31

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

Inventor： Pol Fornos Martinez ,  Xavier Espert Canet ,  Ismael Fernandez Aymerich ,  Roger Fadurdo Orellana ,  Pol llopat Mirambell ,  Marc Borras Camarasa ,  Alejandro Manuel de Pena Hempel ,  Pablo Dominguez Pastor

IPC: B29C64/393 ,  B29C64/165

Abstract: A 3D printer is controlled to apply a print agent at a plurality of predetermined locations in a build chamber of the 3D printer, and energy is applied to heat the build chamber. A thermal image of the build chamber is received. Based on the thermal image, an error in application of the print agent in the build chamber is determined.

公开(公告)号：US20220363011A1

公开(公告)日：2022-11-17

申请号：US17761233

申请日：2019-10-09

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

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

IPC: B29C64/393 ,  B29C64/40 ,  B33Y50/02

Abstract: Printer control data is generated which includes a three dimensional model for a protective structure to be built around a printed object by a three-dimensional printing apparatus, which protective structure is configured to compensate for the distorting effects of uneven shrinkage during cooling. The three dimensional model for the protective structure comprises a plurality of side panels and at least one extensible member interconnecting two or more of the side panels, which extensible member is configured to be extensible in response to shrinkage of the plurality of side panels during cooling. A method and apparatus is disclosed which obtains object model data defining an object to be built by a three-dimensional printing apparatus and automatically generates a three dimensional model for a suitable protective structure that has extensibility as an integral feature of the design to compensate for uneven shrinkage.

公开(公告)号：US20220324164A1

公开(公告)日：2022-10-13

申请号：US17263208

申请日：2019-03-15

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

Inventor： Pol Fornos Martinez ,  Ismael Fernandez Aymerich ,  Maria de las Mercedes Blanco Rollan

IPC: B29C64/165 ,  B33Y80/00 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In one example a method of additive manufacturing includes obtaining object model data and colour data. The object model data describes at least portion of an object to be generated in additive manufacturing using a build material having a first colour and a fusing agent having a second colour different from the first colour. The colour data describes an intended colour of at least portion of the object to be manufactured by additive manufacturing. The intended colour is substantially the first colour, the second colour or a colour therebetween. The method includes determining object generation instructions to apply the fusing agent to a first region of a layer of the build material. The first region of the layer corresponds to portion of the object and the instructions are to apply fusing agent at a contone level such that the colour of the portion of the object corresponding to the first region of the layer of build material is substantially the same as the intended colour as described by the colour data.

公开(公告)号：US11383448B2

公开(公告)日：2022-07-12

申请号：US16605359

申请日：2018-03-28

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

Inventor： Ismael Fernandez Aymerich ,  Sergio Puigardeu Aramendia ,  Pol Fornos Martinez

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

Abstract: A method is disclosed. The method may comprise obtaining, using a processor, design data representing an object to be generated in a fabrication chamber of an additive manufacturing apparatus. The method may further comprise determining, based on the design data, that a part of the object is to be generated within a predefined portion of the fabrication chamber. The method may further comprise responsive to said determining, generating, using a processor, data representing an ancillary element to be generated in the predefined portion between the part of the object and a wall of the fabrication chamber. An apparatus and a machine-readable medium are also disclosed.

公开(公告)号：US20220161495A1

公开(公告)日：2022-05-26

申请号：US17414465

申请日：2019-07-22

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

Inventor： Arnau Codina Saborit ,  Pol Fornos Martinez ,  Vanesa Fal Miyar ,  Ismael Fernandez Aymerich

IPC: B29C64/314 ,  B29C64/393 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Examples relate to a 3D printing and a method comprising receiving a packing ratio of an object to be printed; based on the received packing ratio, determining a mixing ratio of fresh to recycled build material to use for printing the object; and providing the mixing ratio to a dispenser to dispense fresh and recycled build material in the provided mixing ratio for printing the object.