公开(公告)号：US20240383208A1

公开(公告)日：2024-11-21

申请号：US18693897

申请日：2021-09-21

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

Inventor： Krzysztof NAUKA ,  Michelle NIU

IPC: B29C64/393 ,  B22F10/14 ,  B22F10/37 ,  B22F12/60 ,  B28B1/00 ,  B28B17/00 ,  B29C64/165 ,  B29C64/194 ,  B29C64/214 ,  B29C64/218 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a bed moveable in a vertical direction. The bed is to receive a build material that is to form a three-dimensional (3D) printed object. The additive manufacturing system also includes a build material depositor to deposit the build material on the bed and a build material spreader to traverse across the bed to spread the build material. The additive manufacturing system also includes a solidification system to selectively solidify a layer of build material. The additive manufacturing system also includes a controller. The controller is to lower the bed by a first amount in preparation for receiving build material and iteratively raise the bed in increments in between passes of the build material spreader across the bed, wherein an increment is a portion of the first amount.