公开(公告)号：US11348313B2

公开(公告)日：2022-05-31

申请号：US17251989

申请日：2019-03-27

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

Inventor： Jordi Roca Vila ,  Sergio Gonzalez Martin ,  Quim Muntal Diaz

IPC: G06T17/20 ,  B29C64/386 ,  G06F30/23 ,  B33Y50/02 ,  G06T19/20

Abstract: Examples of the present disclosure relate to a method for packing three dimensional (3D) models. The method comprises identifying a plurality of sections of each 3D model according to curvature profiles of the sections; associating a build material layer thickness to each section of the plurality of sections, whereby each associated build material layer thickness is one of a set of pre-established build material layer thicknesses; packing the plurality of 3D models according to each associated build material layer thickness, whereby packing comprises spatially arranging at least some 3D models in the 3D virtual build volume according to one or more criteria, such that at least some of the sections of different 3D models associated to a same build material layer thickness are arranged in a same region of the 3D virtual build volume.

公开(公告)号：US20220143915A1

公开(公告)日：2022-05-12

申请号：US17417734

申请日：2019-07-25

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

Inventor： Sergio Gonzalez Martin ,  Marc Borras Camarasa ,  Jordi Roca Vila

IPC: B29C64/379 ,  B29C64/386 ,  B29C64/40

Abstract: Object model data modification is described in which object model data defining a first object to be generated by a three-dimensional printer may be obtained. A determination whether the first object is an object that may be adversely affected by a post-processing apparatus during post-processing based on a geometry of the first object to be generated can be made; and if the determination is affirmative, the object model data may be modified by adding a structure to the object model data to create a modified object comprising the first object and the structure, the modified object of a different geometry to the first object so as not to be adversely affected by the post-processing apparatus during the post-processing.

公开(公告)号：US12189364B2

公开(公告)日：2025-01-07

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：US12109762B2

公开(公告)日：2024-10-08

申请号：US17426580

申请日：2019-04-30

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

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

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

CPC classification number: B29C64/393 ,  B33Y50/02

Abstract: In an example, a method includes receiving, at least one processor, object model data representing at least a portion of a first object that is to be generated by an additive manufacturing apparatus by fusing build material within a fabrication chamber. An indication of an amount of fused build material in a region of the fabrication chamber which is to be below the region in which the first object is to be generated may be determined and a dimensional compensation value to apply to the object model data representing the first object may be determined based on the determined indication. The determined dimensional compensation value may be applied to the object model data to derive modified object model data.

公开(公告)号：US20230297069A1

公开(公告)日：2023-09-21

申请号：US18013820

申请日：2020-07-30

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

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

IPC: G05B19/4099 ,  B33Y50/02

CPC classification number: G05B19/4099 ,  B33Y50/02 ,  G05B2219/35134

Abstract: A method is described in which model data describing a three-dimensional object is received. A first offset is applied to a surface of the object, the first offset being applied to the model data. The model data is converted to voxel data, and a second offset is applied to the surface of the object, the second offset being applied to the voxel data.

公开(公告)号：US11663693B2

公开(公告)日：2023-05-30

申请号：US16605567

申请日：2018-06-26

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

Inventor： Alex Carruesco Llorens ,  Sergio Gonzalez Martin

IPC: G06K9/32 ,  G06T3/40 ,  B29C64/386 ,  G06T11/00 ,  B33Y50/02

CPC classification number: G06T3/40 ,  B29C64/386 ,  G06T11/001 ,  B33Y50/02

Abstract: In an example, an apparatus comprises processing circuitry, the processing circuitry comprising: memory, to store a two-dimensional pixel representation of a layer of an object to be made in an additive manufacturing process and pixel information, the pixel information specifying pixels representing a surface of the object and colour for the pixels representing the surface; and an image processor, to generate a downscaled representation of the layer and to process the downscaled representation to propagate colour from pixels representing the surface of the object in the downscaled representation to neighbouring pixels representing an interior of the object in the downscaled representation.

公开(公告)号：US20230024633A1

公开(公告)日：2023-01-26

申请号：US17757789

申请日：2020-01-22

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

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

IPC: B29C64/386 ,  B33Y50/02 ,  G05B19/4099

Abstract: In an example, a method includes acquiring, by a processor and for a set of locations in a fabrication chamber for additive manufacturing, data identifying a first subset of locations associated with a first level of variability in deformations in object generation and a second subset of locations associated with a second, greater, level of variability in deformations object generation. A geometrical compensation model may be derived to compensate for anticipated deformations in object generation by a first additive manufacturing apparatus. The geometrical compensation model may comprise geometrical transformations to apply to object model data representing at least a portion of an object, wherein each geometrical transformation is associated with a location of the set of locations. The first subset of locations may be associated with geometrical transformations determined based objects generated by a plurality of additive manufacturing apparatus and the second subset of locations may be associated with geometrical transformations determined based on objects generated by the first additive manufacturing apparatus.

公开(公告)号：US20230014420A1

公开(公告)日：2023-01-19

申请号：US17757787

申请日：2020-01-15

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

Inventor： Sergio Gonzalez Martin ,  Marc Borras Camarasa ,  Jordi Bautista Ballester ,  Jordi Roca Vila ,  Miguel Armero Jarava

IPC: B29C64/386 ,  B33Y50/00 ,  G06F30/20

Abstract: A method comprises: obtaining object model data defining an object or objects to be built by a three-dimensional printing apparatus; determining an effect of carrying out a post-build process on the object or objects, wherein the determining uses the object model data and a computer-implemented evaluation of the post-build process and is carried out prior to building the object or objects, identify portions of the object or objects that would not be processable by the cleaning process; and outputting an indication of non-processability of portions of the object or objects are determined not to be processable by the post-build process.

公开(公告)号：US20220363005A1

公开(公告)日：2022-11-17

申请号：US17246051

申请日：2021-04-30

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

Inventor： Jordi Roca Vila ,  Sergio Gonzalez Martin ,  Jordi Sanroma Garrit

IPC: B29C64/393 ,  B29C64/124 ,  G06T17/20 ,  G06F30/10 ,  B33Y10/00 ,  B33Y50/02

Abstract: In an example implementation, a method of submitting 3D object models to a 3D printing system includes receiving a digital object model as a triangle mesh, and integerizing floating-point X, Y, Z, coordinate values of triangle vertices that define triangles of the triangle mesh. The method includes storing the digital object model in a 3D print file as an integerized triangle mesh comprising the integerized X, Y, Z, coordinate values, and then submitting the 3D print file with the integerized triangle mesh to the 3D printing system to produce the 3D object.

公开(公告)号：US20220347925A1

公开(公告)日：2022-11-03

申请号：US17621078

申请日：2019-07-15

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

Inventor： Sergio Gonzalez Martin ,  Alex Carruesco Llorens ,  Jordi Gonzalez Rogel ,  Jordi Sanroma Garrit ,  Victor Diego Gutierrez ,  Enrique Gurdiel Gonzalez ,  Victor Anton Dominguez ,  Antonio Chica Calaf ,  Alvaro Vinacua Pla ,  Cristina Raluca Vijulie

IPC: B29C64/386 ,  B33Y50/00 ,  B22F10/80 ,  G05B19/4093

Abstract: In an example, a method includes receiving, at a processor, an object model describing a geometry of a three-dimensional object, and determining a transformed data model describing a volume containing a modified version of the three-dimensional object as a plurality of categorised contiguous, non-overlapping sub-volumes, wherein the modified version of the three-dimensional object includes a surface offset. Determining the transformed data model may comprises categorising the sub-volumes by defining a first region by determining an area swept by an offset operator when the offset operator is swept around a boundary of the sub-volume and defining a second region, interior to the first region, and indicative of the closest approach of the offset operator to the sub-volume when the offset operator is swept around the boundary. Intersections between a surface of the object model and at least one of the first and second region may be determined. When the surface intersects the second region, the sub-volume may be categorised as interior to the three-dimensional object; and when the surface intersects the first region and not the second region, the sub-volume may categorised as spanning a boundary of the three-dimensional object.