US 11,865,786 B2
Support structure, and printing method and printing system therefor
Wei Chen, Guangdong (CN); and Dongqing Xiang, Guangdong (CN)
Assigned to ZHUHAI SAILNER 3D TECHNOLOGY CO., LTD., Guangdong (CN)
Filed by ZHUHAI SAILNER 3D TECHNOLOGY CO., LTD., Guangdong (CN)
Filed on Aug. 30, 2019, as Appl. No. 16/556,871.
Application 16/556,871 is a continuation of application No. PCT/CN2017/084565, filed on May 16, 2017.
Claims priority of application No. 201710123566.7 (CN), filed on Mar. 3, 2017.
Prior Publication US 2019/0381739 A1, Dec. 19, 2019
Int. Cl. B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 80/00 (2015.01); B33Y 50/02 (2015.01)
CPC B29C 64/393 (2017.08) [B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 80/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A support structure, comprising a solid portion printed using a first material and a non-solid portion printed using a second material, the solid portion comprising a grid structure, both inside and outside of each grid unit of the grid structure being filled with the non-solid portion; wherein a hardness of the first material is different from a hardness of the second material;
a grid density of the grid structure varies within a printing plane,
and/or
an area of a cross-section of a connecting edge of the grid unit varies in a direction perpendicular to the printing plane;
wherein the solid portion comprises a plurality of grid layers parallel with the printing plane, and the plurality of grid layers contains the grid structure; the solid portion further comprises a plurality of pillars, each of the plurality of pillars penetrates at least two adjacent layers of the plurality of grid layers, and both inside and outside of space enclosed by the plurality of pillars and the plurality of grid layers are filled with the non-solid portion.