公开(公告)号：US20190039322A1

公开(公告)日：2019-02-07

申请号：US16075228

申请日：2017-01-19

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

Inventor： Anna TORRENT ,  David SORIANO FOSAS ,  Vicente GRANADOS ASENSIO

IPC: B29C64/393 ,  B33Y50/02 ,  G06F17/50 ,  B33Y40/00 ,  B29C64/227 ,  B29C64/245 ,  B29C64/295 ,  B33Y30/00

Abstract: Certain examples described herein relate to build units that are physically connectable to at least one host apparatus of an additive manufacturing system. A build unit comprises at least one controllable device useable in an object building operation. In certain examples, the at least one device is controllable according to first control instructions originating from the at least one host apparatus when the build unit is physically connected to the at least one host apparatus. In certain examples, the at least one device is also controllable according to second control instructions generated independently of the at least one host apparatus when the build unit is not physically connected to the at least one host apparatus.

公开(公告)号：US20210213677A1

公开(公告)日：2021-07-15

申请号：US16075918

申请日：2017-07-28

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

Inventor： David SORIANO FOSAS ,  Juan Manuel ZAMORANO ,  Michele VERGANI

IPC: B29C64/165 ,  B33Y80/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/393

Abstract: Examples relate to methods of printing a 3D printed tamper evident security structure for protecting a feature; the method comprising repeatedly: depositing a layer of build material; doping one or more than one region of the layer of build material using a dopant to influence a respective electrical attribute of one or more than one region associated with a graph of the structure; and agglomerating one or more than one selected portion of the layer of the build material, including the one or more than one doped region of the layer of build material, to form progressively the graph with a predetermined measurable electrical characteristic.

公开(公告)号：US20190105841A1

公开(公告)日：2019-04-11

申请号：US16089078

申请日：2016-10-25

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

Inventor： Juan Manuel ZAMORANO ,  David SORIANO FOSAS ,  Sergio DE SANTIAGO DOMINQUEZ

IPC: B29C64/386 ,  B33Y30/00 ,  B33Y50/00 ,  B29C64/255 ,  B22F3/00 ,  G01F23/22

Abstract: An example method for measuring the amount of build material in a build material container of a 3D printer may comprise mounting a belt element tensioned between at least two shafts, and attaching a body to the belt element; driving the body towards a surface of the build material while measuring the advance and the speed of the belt element; detecting a reduction of the speed of the belt element, and determining that the body has then contacted the surface of the build material; and determining the position of the surface of the build material based at least on the measured advance of the belt element.

公开(公告)号：US20210199508A1

公开(公告)日：2021-07-01

申请号：US16074896

申请日：2017-04-21

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

Inventor： Joshua Peter YASBEK ,  Todd GOYEN ,  David SORIANO FOSAS ,  Asa WEISS ,  Arthur H. BARNES

IPC: G01J5/10 ,  G01J5/06

Abstract: In an example, an apparatus is described that includes a non-resistive heat source, a thermally conductive face, and a temperature detector. The thermally conductive face has a controlled long-wave infrared emissivity and is in thermal contact with the non-resistive heat source. The temperature detector is positioned to detect a temperature of the thermally conductive face.

公开(公告)号：US20200298497A1

公开(公告)日：2020-09-24

申请号：US16089871

申请日：2016-12-13

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

Inventor： Juan Manuel ZAMORANO ,  David SORIANO FOSAS ,  Sergio DE SANTIAGO DOMINGUEZ

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/10 ,  B29C64/314 ,  B29C64/255 ,  G05B19/4099

Abstract: An apparatus and method for performing a print operation on a 3D printer (110) are described herein. A 3D printing apparatus comprising a 3D printer (110) is arranged to perform a print operation using build material from a build unit (120) unless a value that identifies a first build material stored in the build unit in a first register, which is set according to an initial build powder fill operation of the build unit (120) by a powder management station, is different from a value in a second register, which is set according to the initial build powder fill operation, or modified in response to, or following, a subsequent opening of the build unit (120).