公开(公告)号：US20200298496A1

公开(公告)日：2020-09-24

申请号：US16089863

申请日：2017-03-29

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

Inventor： Sergio PUIGARDEU ARAMENDIA ,  Adrien CHIRON ,  Daniel Pablo ROSENBLATT

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

Abstract: Examples of a method of operating an additive manufacturing system, a three-dimensional (3D) printing system and a non-transitory machine-readable medium are described. In an example, a build material is supplied to a print region of an additive manufacturing system. A temperature distribution, corresponding to a pattern, of at least a surface of the build material is generated. An image of the pattern is captured using a thermal sensor. Image data representative of the image of the pattern is compared with data representative of an expected position of the pattern. On the basis of the comparing, difference data indicative of a difference between a position of the thermal sensor during capture of the image and an expected position of the thermal sensor associated with the expected position of the pattern is generated. Operation of the additive manufacturing system is controlled at least in dependence on the difference data.

公开(公告)号：US20210291457A1

公开(公告)日：2021-09-23

申请号：US16608329

申请日：2018-03-29

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

Inventor： Mohammad JOWKAR ,  Yngvar ROSSOW SETHNE ,  Adrien CHIRON ,  Luis ARENAS RIVERA

IPC: B29C64/393 ,  B29C64/205 ,  B29C64/343 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An example method to determine an excess of build material in 3D printing includes providing an amount of build material, spreading the amount of build material to form a layer of build material on a build platform and to leave any excess build material on an excess zone having visible marks thereon and analyzing the marks on the excess zone to determine an excess of build material at the excess zone.

公开(公告)号：US20210178666A1

公开(公告)日：2021-06-17

申请号：US17049874

申请日：2018-08-08

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

Inventor： Adrien CHIRON ,  Mohammad JOWKAR ,  Diego Javier MOSTACCIO

IPC: B29C64/153 ,  B29C64/165

Abstract: According to one example, there is provided a method of preparing build material in a build material supply module. The method comprises moving a supply platform within a build material supply module in a predetermined manner to compact build material within the supply module.

公开(公告)号：US20200298482A1

公开(公告)日：2020-09-24

申请号：US16089139

申请日：2016-10-17

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

Inventor： Adrien CHIRON ,  Yngvar ROSSOW SETHNE ,  Pablo DOMINGUEZ PASTOR

IPC: B29C64/218 ,  B29C64/321

Abstract: According to one example there is provided a build material supply system for a 3D printing system. The system comprises a feed tray for containing build material, a plate for removing build material from the feed tray and forming a pile of build material adjacent a spreader of the 3D printing system, and a sensor module to detect build material on the plate.