公开(公告)号：US20190030813A1

公开(公告)日：2019-01-31

申请号：US16069839

申请日：2016-04-22

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

Inventor： Randall Dean West ,  Samuel A. Stodder

IPC: B29C64/357 ,  B22F3/00 ,  B29C64/321 ,  B33Y30/00 ,  B33Y40/00

Abstract: In some examples, a build material delivery system for a printing system includes a moveable belt to transport a build material between locations in the printing system, where an outer surface of the belt is to carry the build material. A drive system is to move the belt, and the drive system includes a roller to engage an inner surface of the belt, the inner surface of the belt comprising transport structures defining cavities to transport stray build material that has seeped into an inner region containing the drive system from the outer surface of the belt.

公开(公告)号：US11155029B2

公开(公告)日：2021-10-26

申请号：US16093108

申请日：2016-05-12

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

Inventor： Scott A. White ,  Justin M. Roman ,  Xavier Alonso Becerro ,  Ismael Chanclon Fernandez ,  Samuel A. Stodder ,  Glenn Thomas Haddick

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/171 ,  B29C67/00 ,  B33Y50/02 ,  B29C64/291 ,  B33Y40/00

Abstract: A method of three-dimensional (3D) printing is provided. Print data is received, which defines patterns of at least one agent to be applied to a layer of build material. The print data is modified to add a further pattern of a detailing agent to be selectively applied to the layer of build material to generate fracture regions in a processed volume of build material.

公开(公告)号：US20190176390A1

公开(公告)日：2019-06-13

申请号：US16093108

申请日：2016-05-12

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

Inventor： Scott A. White ,  Justin M. Roman ,  Xavier Alonso Becerro ,  Ismael Chanclon Fernandez ,  Samuel A. Stodder ,  Glenn Thomas Haddick

IPC: B29C64/165 ,  B29C67/00

Abstract: A method of three-dimensional (3D) printing is provided. Print data is received, which defines patterns of at least one agent to be applied to a layer of build material. These patterns are at least partially based on a 3D model of at least one object to be generated. The print data print data is processed to determine regions which are distant from said patterns. The print data is modified to add a further pattern of a detailing agent to be selectively applied to the layer of build material to generate fracture regions in a processed volume of build material.

公开(公告)号：US20190061254A1

公开(公告)日：2019-02-28

申请号：US16090746

申请日：2016-04-22

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

Inventor： Randall Dean West ,  Samuel A. Stodder

IPC: B29C64/321 ,  B29C64/165 ,  B29C64/295 ,  B29C64/214 ,  B29C64/245

Abstract: In some examples, a printing system includes a bed on which layers of a three-dimensional (3D) object are to be formed, a moveable delivery platform, and a moveable belt to carry a build material and to deposit the build material onto the delivery platform. An actuator is to move the delivery platform from a lowered position to a raised position to allow spreading of the deposited build material on the delivery platform to the bed.