公开(公告)号：US20210201562A1

公开(公告)日：2021-07-01

申请号：US16077774

申请日：2017-07-10

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

Inventor： Matthew A SHEPHERD ,  Jake WRIGHT ,  Hector Jose LEBRON ,  Vanessa VERZWYVELT ,  Morgan T SCHRAMM

IPC: G06T15/08

Abstract: In an example a method includes identifying, by a processor, in a data model of at least a portion of a three-dimensional object, an object property associated with a location in the three-dimensional object. A data model of a virtual build volume comprising at least a portion of the three-dimensional object may be generated in which an association with an object property is dispersed beyond the location.

公开(公告)号：US20210206058A1

公开(公告)日：2021-07-08

申请号：US16075705

申请日：2017-07-10

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

Inventor： Vanessa VERZWYVELT ,  Matthew A. SHEPHERD ,  Jake WRIGHT ,  Hector LEBRON ,  Morgan T. SCHRAMM

IPC: B29C64/165 ,  B29C64/295 ,  B29C64/291 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

Abstract: In an example, a method includes providing a build material. Print agent comprising colorant may be applied to a first portion of the build material to be fused in additive manufacturing, wherein the print agent is applied according to a target color for the first portion. A combination of a fusion inhibiting agent and colorant may be applied to a second portion of the build material, wherein the print agent is applied according to the target color of the first portion and the second portion is adjacent to the first portion. The method may further include heating the build material by exposing the build material to radiation so as to cause fusing of the first portion.

公开(公告)号：US20210200920A1

公开(公告)日：2021-07-01

申请号：US16076214

申请日：2017-07-19

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

Inventor： Matthew A. SHEPHERD ,  Vanessa VERZWYVELT

IPC: G06F30/23 ,  B29C64/393 ,  G06F30/17

Abstract: An example system includes a three-dimensional (3D) print engine to produce a 3D object based on voxel data associated with the 3D object and a 3D print controller to control operation of the 3D print engine. The 3D print controller having a surface normal determination portion. The surface normal determination portion is to determine a normal for at least one surface voxel of the 3D object, the determination of the normal being based on the voxel data. The 3D print controller is to cause the 3D print engine to adjust at least one print parameter based on the normal for the at least one surface voxel determined by the surface normal determination portion.

公开(公告)号：US20210221068A1

公开(公告)日：2021-07-22

申请号：US16081606

申请日：2017-07-10

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

Inventor： Morgan T SCHRAMM ,  Matthew A SHEPHERD ,  Jake WRIGHT ,  Vanessa VERZWYVELT ,  Xin CHENG ,  Hector LEBRON

IPC: B29C64/393 ,  B33Y50/02 ,  B22F10/85 ,  B28B17/00 ,  G05B19/4099

Abstract: In an example, a method includes receiving, at a processor, a data model of an object to be generated in additive manufacturing. A virtual build volume comprising a representation of at least a portion of the object may be segmented into a plurality of nested segments comprising a core segment and a peripheral segment. Segmenting the virtual build volume may comprise determining a dimension of the peripheral segment based on at least one of a geometry of the object and an intended object property.

公开(公告)号：US20210178695A1

公开(公告)日：2021-06-17

申请号：US16077054

申请日：2017-07-28

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

Inventor： Vanessa VERZWYVELT ,  Matthew A. SHEPHERD ,  Arthur H. BARNES ,  Wesley R. SCHALK ,  Hector Jose LEBRON ,  Jake WRIGHT

IPC: B29C64/393 ,  B29C64/205 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A control system for a three-dimensional printer includes an energy component interface, an agent depositing component interface, and control logic. The control logic controls the operation of an energy component through the energy component interface and an agent depositing component through the agent depositing component, in forming an output object that is specified in a print job. Additionally, in some examples, the control logic can implement a plurality of modes. Each mode, when selected modulate one or more operational parameters of a least one of the energy component or agent depositing component.

公开(公告)号：US20210170691A1

公开(公告)日：2021-06-10

申请号：US16076240

申请日：2017-07-10

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

Inventor： Hector LEBRON ,  Jake WRIGHT ,  Stephen G. RUDISILL ,  Matthew A. SHEPHERD ,  Vanessa VERZWYVELT ,  Morgan T. SCHRAMM

IPC: B29C64/393 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  G05B19/4099

Abstract: In an example, a virtual build volume comprising a representation of at least a part of an object to be generated in additive manufacturing is segmented into a plurality of nested segments comprising a core segment, an inner peripheral segment and an outer peripheral segment. Additive manufacturing control instructions may be generated for the nested segments. The control instructions for the core segment may provide a first region of the object corresponding to the core segment and having a first color. The control instructions for the outer peripheral segment may provide a second color for a second region of the object corresponding to the outer peripheral segment. The control instructions for the inner peripheral segment may provide a third color for a third region of the object corresponding to the inner peripheral segment, wherein a color of the third region is determined so as to at least partially visually mask the first region.

公开(公告)号：US20220250327A1

公开(公告)日：2022-08-11

申请号：US17312841

申请日：2019-04-29

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

Inventor： Matthew A. SHEPHERD ,  Jacob WRIGHT ,  Dennis J. SCHISSLER ,  Vanessa VERZWYVELT ,  Xin CHENG ,  Morgan T. SCHRAMM

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  H04N1/409 ,  B33Y30/00

Abstract: According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor, may cause the processor to identify an orientation of a surface of a three-dimensional (3D) model. The instructions may also cause the processor to, based on the identified orientation of the surface, determine an agent formulation to be employed in fabricating a section of a 3D printed part corresponding to the surface, in which each of a plurality of different orientations of surfaces of the 3D model corresponds to a respective different agent formulation.

公开(公告)号：US20220118712A1

公开(公告)日：2022-04-21

申请号：US17567685

申请日：2022-01-03

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

Inventor： Hector LEBRON ,  Jake WRIGHT ,  Stephen G. RUDISILL ,  Matthew A. SHEPHERD ,  Vanessa VERZWYVELT ,  Morgan T. SCHRAMM

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/165 ,  G05B19/4099

Abstract: In an example, a virtual build volume comprising a representation of at least a part of an object to be generated in additive manufacturing is segmented into a plurality of nested segments comprising a core segment, an inner peripheral segment and an outer peripheral segment. Additive manufacturing control instructions may be generated for the nested segments. The control instructions for the core segment may provide a first region of the object corresponding to the core segment and having a first color. The control instructions for the outer peripheral segment may provide a second color for a second region of the object corresponding to the outer peripheral segment. The control instructions for the inner peripheral segment may provide a third color for a third region of the object corresponding to the inner peripheral segment, wherein a color of the third region is determined so as to at least partially visually mask the first region.

公开(公告)号：US20210206114A1

公开(公告)日：2021-07-08

申请号：US16075606

申请日：2017-07-10

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

Inventor： Morgan T. SCHRAMM ,  Matthew A. SHEPHERD ,  Vanessa VERZWYVELT ,  David M. BERFANGER ,  Jake WRIGHT ,  Hector LEBRON ,  Andrew E. FITZHUGH

IPC: B29C64/393 ,  B33Y50/02 ,  G05B19/4099

Abstract: In an example, a method includes determining an additive manufacturing process instruction, the additive manufacturing process instruction comprising an instruction specifying a coverage of a set of print agents comprising a fusing agent and a colorant to be applied to build material. A color and a behavioural property of carrying out an additive manufacturing process according to the additive manufacturing process instruction may be determined and, in response to a determination that the behavioural property meets predetermined parameters, the instruction and the color may be added to a color mapping resource.

公开(公告)号：US20210200186A1

公开(公告)日：2021-07-01

申请号：US16076241

申请日：2017-07-28

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

Inventor： Vanessa VERZWYVELT ,  Matthew A SHEPHERD ,  Morgan T SCHRAMM ,  Andrew E FITZHUGH ,  Lihua ZHAO ,  Jacob Tyler WRIGHT ,  Hector LEBRON

IPC: G05B19/4099 ,  G06N5/04 ,  B33Y50/00

Abstract: In an example, a method includes receiving object model data describing at least a portion of an object to be generated by additive manufacturing. Object generation instructions for generating the object in its entirety may be derived based on the object model data. Where it is determined that the object model data comprises a data deficiency for deriving the object generation instructions, at least one attribute for the object may be inferred and object generation instructions may be derived based on the object model data and the inferred attribute.