公开(公告)号：US20210094237A1

公开(公告)日：2021-04-01

申请号：US16608259

申请日：2018-04-04

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

Inventor： Timothy L Weber ,  Andrew L Van Brocklin ,  James E Clark ,  Jason C Hower

IPC: B29C64/393 ,  B33Y50/02 ,  B29C64/112 ,  B33Y30/00 ,  B29C64/209 ,  B33Y10/00

Abstract: In an example implementation, a method of 3D printing includes receiving a 2D data slice derived from a 3D object model, where the 2D data slice defines an object area of a layer of build material that is to receive a liquid functional agent and be fused as a layer of a part. The method includes determining that the 2D data slice distinguishes first and second tolerance zones within the object area. The method includes controlling a printhead to print a liquid functional agent onto the layer of build material according to a first droplet ejection spacing when printing in the first tolerance zone, and controlling the printhead to print a liquid functional agent onto the layer of build material according to a second droplet ejection spacing when printing in the second tolerance zone.