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：US20210206113A1

公开(公告)日：2021-07-08

申请号：US16075605

申请日：2017-07-28

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

Inventor： Morgan T. SCHRAMM ,  Matthew A. SHEPHERD ,  David M. BERFANGER ,  Jay S. GONDEK

IPC: B29C64/393 ,  B22F10/20 ,  B22F10/38 ,  G06F30/20

Abstract: In an example, a method includes receiving a data model of an object to be generated in additive manufacturing, the data model comprising geometric object data describing the object and property data. A property affecting object generation parameter may be determined for the object and a modified data model of the object may be derived by applying a transformation to the property data associated with the property affecting object generation parameter, wherein the transformation is to compensate for a property value shift associated with the property affecting object generation parameter.

公开(公告)号：US20210060862A1

公开(公告)日：2021-03-04

申请号：US16075706

申请日：2017-07-10

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

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

IPC: B29C64/393 ,  B29C64/153 ,  B33Y50/02 ,  B33Y10/00 ,  B28B1/00 ,  B28B17/00 ,  B22F3/105

Abstract: In an example, a method includes forming a layer of build material, processing a first portion of the build material by distributing a print agent using a first distribution pattern, the first distribution pattern having a first print agent dispersion characteristic and processing a second portion of the build material by distributing a print agent using a second distribution pattern, the second distribution pattern having a second print agent dispersion characteristic. The method may further include heating the build material by exposing the layer of build material to radiation so as to cause fusing of the first and second portion.

公开(公告)号：US20200368971A1

公开(公告)日：2020-11-26

申请号：US16769218

申请日：2017-12-20

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

Inventor： Miguel Angel LOPEZ ALVAREZ ,  Morgan T. SCHRAMM ,  Xin CHENG ,  Jay s. GONDEK

IPC: B29C64/393 ,  B33Y50/02 ,  H04N1/60

Abstract: In some examples, with respect to three-dimensional printer color management, three-dimensional printer native space coordinates of a three-dimensional printer may be mapped to three-dimensional printer printing agent space coordinates of the three-dimensional printer. The three-dimensional printer printing agent space coordinates may be mapped to color space coordinates. The color space coordinates may be mapped to two-dimensional printer printing agent space coordinates of a two-dimensional printer. The two-dimensional printer printing agent space coordinates may be mapped to two-dimensional printer native space coordinates of the two-dimensional printer. A color management protocol of the two-dimensional printer may be utilized, based on the mapping of the three-dimensional printer native space coordinates to the two-dimensional printer native space coordinates, for the three-dimensional printer to print a three-dimensional object.

公开(公告)号：US20240367443A1

公开(公告)日：2024-11-07

申请号：US18565737

申请日：2021-06-04

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

Inventor： Morgan T. SCHRAMM ,  Wen-Yu LIAN ,  Jay S. GONDEK

IPC: B41J2/205 ,  G06K15/02 ,  G06K15/10

Abstract: A printing system includes a machine readable storage medium storing instructions and a processor to execute the instructions. The processor is to execute the instructions to receive a source image comprising a plurality of regions and analyze each region of the plurality of regions to determine an ink density of each region. The processor is to execute the instructions to further in response to the ink density for a region exceeding a threshold, deplete the ink density for the region; and in response to the ink density for a region not exceeding the threshold, maintain the ink density for the region. The processor is to execute the instructions to further combine the depleted regions and the maintained regions to generate an optimized image.

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：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.