公开(公告)号：US20220134673A1

公开(公告)日：2022-05-05

申请号：US17417745

申请日：2019-07-07

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

Inventor： Daniel Mosher ,  Jennifer Wu ,  Vladek Kasperchik ,  David A. Champion

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

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, cause the processor to determine physical characteristics of a build layer of build material particles. The instructions may also cause the processor to determine an adjustment to forming data based on the determined physical characteristics, the forming data to be used informing a subsequent build layer. The instructions may further cause the processor to apply the determined adjustment to the forming data for use in forming the subsequent build layer, in which portions of a three-dimensional (3D) object are to be formed in the build layer and the subsequent build layer.

公开(公告)号：US20230191492A1

公开(公告)日：2023-06-22

申请号：US17996050

申请日：2020-04-29

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

Inventor： William J Allen ,  Temiloluwa Adegoke ,  Matthew Gaubatz ,  John C Greeven ,  Daniel Mosher ,  Thomas A Saksa ,  Vanessa Verzwyvelt ,  Michael F Klopfenstein ,  Xin Cheng ,  Richard Sweet ,  Todd Hegert Goyen

IPC: B22F10/85 ,  B33Y50/02 ,  B22F10/38 ,  B22F10/32

CPC classification number: B22F10/85 ,  B33Y50/02 ,  B22F10/38 ,  B22F10/32 ,  B33Y10/00

Abstract: In some examples, a system receives measurement data obtained based on a non-destructive imaging of an identifiable structure within a three-dimensional (3D) object formed using an additive manufacturing machine, the identifiable structure formed based on control of a characteristic of a build material of a first internal object portion relative to a characteristic of the build material in a second internal object portion, the first and second internal object portions being within the 3D object. The system determines, based on the measurement data, a deviation of a physical property of the identifiable structure from a target physical property, and outputs information indicating the deviation.

公开(公告)号：US20210331406A1

公开(公告)日：2021-10-28

申请号：US16606033

申请日：2018-07-23

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

Inventor： Jordi Roca Vila ,  Sergio Gonzalez Martin ,  Daniel Mosher ,  David A. Champion ,  Jun Zeng

IPC: B29C64/393 ,  B29C64/165

Abstract: A printing device for adapting a printing parameter in relation to the height of a layer of material deposited during an additive manufacturing process is disclosed. The printing device comprises a printing component to deposit a layer of material that is to be solidified so as to form at least a portion of an object, a controller to determine the height of the layer of material at various positions across the layer and to select voxels of a data model of the object, the selected voxels correspond to the height of the layer of material at said various positions, and the controller is further to use the selected voxels as input for calculating a printing parameter.

公开(公告)号：US20220080508A1

公开(公告)日：2022-03-17

申请号：US17421572

申请日：2019-04-29

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

Inventor： David Champion ,  Daniel Mosher ,  Vladek Kasperchik

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/393 ,  B22F10/14 ,  B28B1/00 ,  B28B17/00

Abstract: In an example implementation, a method of determining liquid agent amounts in 3D printing includes measuring density levels of a build material at locations across a build material layer and determining if the measured density levels vary from expected density levels. For locations where measured density levels vary from expected density levels, an adjusted liquid agent dose is determined, and for locations where measured density levels do not vary from expected density levels, an expected liquid agent dose is determined. The adjusted and expected liquid agent doses are deposited onto the layer at locations corresponding with the adjusted and expected liquid agent doses.

公开(公告)号：US20210276264A1

公开(公告)日：2021-09-09

申请号：US16608354

申请日：2018-03-23

Applicant: OREGON STATE UNIVERSITY ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： David A. Champion ,  Daniel Mosher ,  Brian Bay

IPC: B29C64/393 ,  B29C67/00

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, cause the processor to access a stereoscopic three-dimensional (3D) image of a layer including solidified build material particles. The instructions may also cause the processor to identify an optical property of the solidified build material particles at a location on the layer from the stereoscopic 3D image. The instructions may further cause the processor to determine whether the identified optical property exceeds a predefined threshold and based on a determination that the identified optical property exceeds the predefined threshold, output an indication that the layer includes an optical property that exceeds the predefined threshold.

公开(公告)号：US20210097669A1

公开(公告)日：2021-04-01

申请号：US16608369

申请日：2018-03-23

Applicant: OREGON STATE UNIVERSITY ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Daniel Mosher ,  Brian Bay ,  David A. Champion

IPC: G06T7/00 ,  G06T7/174 ,  G06T7/11 ,  G06K9/46 ,  G06K9/62 ,  G06T7/593 ,  B29C64/386 ,  B33Y50/00

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, cause the processor to determine whether a first surface map includes a dropout, the first surface map being generated using a first image parameter on a first image and a second image. The instructions may also cause the processor to, based on a determination that the first surface map includes a dropout, recover information corresponding to the dropout. The instructions may further cause the processor to generate a recovered surface map using the recovered information and store the recovered surface map.

公开(公告)号：US20200238625A1

公开(公告)日：2020-07-30

申请号：US16608382

申请日：2017-10-16

Applicant: OREGON STATE UNIVERSITY ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： David A Champion ,  Daniel Mosher ,  Brian Bay

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

Abstract: An example method includes forming a layer of build material on a build platform of a 3-D printer and correlating X-Y position data and stereoscopic Z-position data for particles of the build material in the layer of build material that are determined to exceed a threshold criteria based on a measure attribute.

公开(公告)号：US11987006B2

公开(公告)日：2024-05-21

申请号：US17417745

申请日：2019-07-19

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

Inventor： Daniel Mosher ,  Jennifer Wu ,  Vladek Kasperchik ,  David A. Champion

IPC: B29C64/393 ,  B33Y50/02 ,  G05B19/4099 ,  B29C64/153 ,  B29C64/165

CPC classification number: B29C64/393 ,  B33Y50/02 ,  G05B19/4099 ,  B29C64/153 ,  B29C64/165

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, cause the processor to determine physical characteristics of a build layer of build material particles. The instructions may also cause the processor to determine an adjustment to forming data based on the determined physical characteristics, the forming data to be used informing a subsequent build layer. The instructions may further cause the processor to apply the determined adjustment to the forming data for use in forming the subsequent build layer, in which portions of a three-dimensional (3D) object are to be formed in the build layer and the subsequent build layer.

公开(公告)号：US11801638B2

公开(公告)日：2023-10-31

申请号：US16608416

申请日：2017-08-31

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

Inventor： Daniel Mosher ,  Brian Bay ,  David A. Champion

IPC: B29C67/00 ,  B29C64/343 ,  B33Y50/02 ,  B29C64/393 ,  B22F10/31 ,  B22F10/28 ,  B22F12/90

CPC classification number: B29C64/343 ,  B22F10/31 ,  B29C64/393 ,  B33Y50/02 ,  B22F10/28 ,  B22F12/90

Abstract: Printers are disclosed. An example printer includes a build controller to access metrics of a layer on a work area and to select a dosing profile from a plurality of dosing profiles to fuse the layer based on the metrics.

公开(公告)号：US20230091752A1

公开(公告)日：2023-03-23

申请号：US17802832

申请日：2020-07-28

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

Inventor： David R. Otis, Jr. ,  Kevin E. Swier ,  Michael G. Monroe ,  Daniel Mosher ,  Douglas Pederson

IPC: B29C64/214 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/141 ,  B29C64/165 ,  B29C64/393 ,  B33Y50/02

Abstract: A 3D printer is disclosed herein. The 3D printer comprises a build material distributor to generate layers of a build material in a spreading direction along a spreading axis; a resonator mounted on the build material distributor to vibrate the build material distributor along the spreading axis at a frequency; and a controller. The controller is to control the resonator to vibrate the build material distributor at the frequency while controlling the build material distributor to spread a volume of build material over a platform to generate a layer of build material.