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公开(公告)号：WO2021080570A1
公开(公告)日：2021-04-29
申请号：PCT/US2019/057471
申请日：2019-10-22
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： MOSHER, Daniel , SOLE PONS, Macia , DONALDSON, Jeremy Harlan
IPC: B29C64/20 , B29C64/393 , B33Y30/00 , B33Y50/02
Abstract: According to examples, a system may include a recoater and a controller. The controller may identify a structure of a surface of a layer of build material formed on a build platform and may determine whether the identified structure of the surface includes a portion that has a property that is outside of a predefined property level. Based on a determination that the portion has a property that is outside of the predefined property level, an adjustment to be applied to an operation of the recoater to achieve an intended structure of the layer and/or an intended structure of a subsequent layer may be determined and the determined adjustment on the operation of the recoater may be applied.
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公开(公告)号：WO2019182618A1
公开(公告)日：2019-09-26
申请号：PCT/US2018/024178
申请日：2018-03-23
Inventor： MOSHER, Daniel , CHAMPION, David A. , BAY, Brian
IPC: B29C64/393 , H04N13/10
Abstract: According to examples, an apparatus may include a processor and a memory on which is stored machine readable instructions. The processor may execute the instructions to access a first stereoscopic three-dimensional (3D) image of a surface of a layer of build material particles and a second stereoscopic 3D image of the layer surface, the second stereoscopic 3D image being captured at a later time than the first stereoscopic 3D image. The processor may also generate a 3D deformation map of the layer surface from the first stereoscopic 3D image and the second stereoscopic 3D image and may implement an action based on the generated 3D deformation map of the layer surface.
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公开(公告)号：WO2021154253A1
公开(公告)日：2021-08-05
申请号：PCT/US2020/015815
申请日：2020-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： ALLEN, William J. , ADEGOKE, Temiloluwa , ERICKSON, Kristopher J. , GAUBATZ, Matthew , GREEVEN, John C. , HUANG, Wei , MOSHER, Daniel , REDDY, Prakash , SAKSA, Thomas A. , WITTKOPF, Jarrid Alexander
Abstract: In some examples, for forming an identifiable structure within a three-dimensional (3D) object to be built by an additive manufacturing machine, a system receives a digital representation of the 3D object, the digital representation including information identifying first regions in the 3D object with a material property different from a material property of other regions in the 3D object, the first regions of the 3D object corresponding to the identifiable structure. Based on the information in the digital representation of the 3D object, the system generates print data for use in building the 3D object by the additive manufacturing machine, the print data including information specifying that a first amount of a binder agent is to be applied to a first portion of a powdered metal build material is different from a second amount of the binder agent to be applied to a second portion of the powdered metal build material, wherein the second portion is contained within the first portion.
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公开(公告)号：WO2021154202A1
公开(公告)日：2021-08-05
申请号：PCT/US2020/015177
申请日：2020-01-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： MOSHER, Daniel , HULICK, Kevin Bruce , MONROE, Michael G.
IPC: B29C64/205 , B29C64/214 , B29C64/218 , B29C64/227 , B33Y30/00
Abstract: In some examples, an apparatus includes a spreader, and a support to which the spreader is mounted. The support carries the spreader that is moveable along a first direction to spread a powdered build material over a build bed. The support includes a base to contain the powdered build material within a boundary of the build bed, and a wing attached to the base, where a bottom surface of the wing is elevated by a distance from a bottom surface of the base, and the wing is to maintain a height of a portion of the powdered build material outside the boundary below a specified height.
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公开(公告)号：WO2022093204A1
公开(公告)日：2022-05-05
申请号：PCT/US2020/057610
申请日：2020-10-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： OTIS, David R., Jr. , QUEISSER, Andreas H. , MOSHER, Daniel , CHAMPION, David A.
IPC: B29C64/393 , B33Y50/02
Abstract: In some examples, a system determines, based on a captured image of a first layer of powder spread onto a target by a spreader, a physical property of the powder, and adjusts a setting associated with the spreader based on the determined physical property of the powder, where the adjustment produces an adjusted setting. The system causes spreading, by the spreader, of a second layer of powder using the adjusted setting.
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Patent Agency Ranking
公开(公告)号：WO2022086491A1
公开(公告)日：2022-04-28
申请号：PCT/US2020/056329
申请日：2020-10-19
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： CHAMPION, David Alan , MOSHER, Daniel
Abstract: An example method for processing a model for a 3D object to be printed includes: determining a target height of the 3D object; determining whether the target height of the 3D object is a whole multiple of a predetermined layer thickness that is to be used to print the 3D object; when the target height is a whole multiple of the predetermined layer thickness, slicing the model into parallel slices, each corresponding to the predetermined layer thickness; and when the target height is not a whole multiple of the predetermined layer thickness, slicing the model into: a first set of parallel slices, each corresponding to the predetermined layer thickness; and a second set of parallel slices, each corresponding to a second layer thickness; wherein an aggregate height of the first set of parallel slices and the second set of parallel slices corresponds to the target height of the 3D object.
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公开(公告)号：WO2020023010A1
公开(公告)日：2020-01-30
申请号：PCT/US2018/043310
申请日：2018-07-23
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： ROCA VILA, Jordi , GONZALEZ MARTIN, Sergio , MOSHER, Daniel , CHAMPION, David A. , ZENG, Jun
IPC: B29C64/393 , B29C64/20 , B33Y30/00 , B33Y50/02
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.
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公开(公告)号：WO2019055017A1
公开(公告)日：2019-03-21
申请号：PCT/US2017/051580
申请日：2017-09-14
Inventor： MOSHER, Daniel , BAY, Brian , CHAMPION, David A.
IPC: B29C64/393 , H04N13/246
CPC classification number: H04N13/246 , B33Y50/02 , H04N13/239
Abstract: Example methods, apparatus, systems, and articles of manufacturing for calibrating a stereo vision system are described herein. An example stereo vision calibration system includes an automated calibration target stand to support a calibration target. The example stereo vision calibration system further includes a calibrator to control the automated calibration target stand to move the calibration target to a plurality of positions according to a sequence of positions while the automated calibration target stand is disposed in an additive manufacturing (AM) machine, and control a stereo vision system of the AM machine to obtain images of the calibration target in the plurality of positions.
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公开(公告)号：WO2022025866A1
公开(公告)日：2022-02-03
申请号：PCT/US2020/043840
申请日：2020-07-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： OTIS, JR., David, R. , SWIER, Kevin E. , MONROE, Michael G. , MOSHER, Daniel , PEDERSON, Douglas
IPC: B29C64/205 , B33Y30/00
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.
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公开(公告)号：WO2021221620A1
公开(公告)日：2021-11-04
申请号：PCT/US2020/030341
申请日：2020-04-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： ALLEN, William J. , ADEGOKE, Temiloluwa , GAUBATZ, Matthew , GREEVEN, John C. , MOSHER, Daniel , SAKSA, Thomas A. , VERZWYVELT, Vanessa , KLOPFENSTEIN, Michael F. , CHENG, Xin , SWEET, Richard , GOYEN, Todd Hegert
IPC: B22F3/10 , B29C64/393 , B33Y50/02
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.
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