公开(公告)号：US20190039301A1

公开(公告)日：2019-02-07

申请号：US16075444

申请日：2016-10-27

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

Inventor： Haseeb YUSEF ,  William WINTERS ,  Jordi GIMENEZ MANENT ,  Xavier GASSO PUCHAL ,  Eduardo RUIZ MARTINEZ ,  Drew BERWAGER ,  Brent EWALD ,  Micah ABERTH

IPC: B29C64/218 ,  B33Y30/00

Abstract: According to an example, a recoater for a three-dimensional (3D) printer may include a cylindrical element having a surface to spread build material particles. The build material particles may have a specified average dimension and the surface may include a plurality of depressions that have dimensions that are smaller than the specified average dimension of the build material particles.