公开(公告)号：US20210016496A1

公开(公告)日：2021-01-21

申请号：US16975458

申请日：2019-03-08

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Xiangfan CHEN ,  Wenzhong LIU ,  Hao F. ZHANG ,  Cheng SUN

IPC: B29C64/129 ,  B33Y10/00

Abstract: In an aspect, a method for additive manufacture of a three-dimensional object based on a computational model comprises steps of: grayscale photohardening a precursor material to form a portion of the object; and applying a hardened meniscus coating at a feature of the object; wherein the three-dimensional object is formed via at least the combination of the steps of gray scale photohardening and applying the meniscus coating. In some embodiments, the grayscale photohardening step is a grayscale photopolymerization step. In some embodiments, the applying a hardened meniscus coating step is a meniscus equilibrium post-curing step.