Patent ID: 11865786
Assignee: ZHUHAI SAILNER 3D TECHNOLOGY CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A printing method of a support structure for printing the support structure according to claim 1, wherein the printing method comprises:
step S1: in a same slice layer, according to support structure layer printing data, printing and forming a layer solid portion using a first material, and printing and forming a layer non-solid portion using a second material; and
step S2: repeating the step S1, printing a plurality of layer solid portions and a plurality of layer non-solid portions, the plurality of layer solid portions forming a solid portion of the support structure, and the plurality of layer non-solid portions forming a non-solid portion of the support structure;
wherein a hardness of the first material is different from a hardness of the second material; the solid portion comprises a grid structure, and both inside and outside of each grid unit of the grid structure are filled with the non-solid portion;
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.