Printing method of multi-material 3D printer

Abstract

The invention relates to a printing method of a multi-material 3D printer. The printing method comprises the following steps of: (1) driving a laser machine and a printing platform to horizontally move to corresponding positions by using a Z-axis horizontal moving mechanism; (2) rotating a storage tank, scraping a printing material positioned inside the storage tank by using a scraper blade mechanism so as to form a flat printing layer, and then stopping rotation of the storage tank; (3) moving down the printing platform to make sure that the distance from the lower surface of the printing platform to the bottom of the storage tank is equal to the set printing thickness set by a cutting piece; projecting the image range by using the laser machine to make sure that the printing material inside the projection region is cured on the printing platform; (4) starting an oblique pull mechanism, making a mounting plate be inclined, and separating a curing layer on the printing platform from the storage tank; and (5) still driving the laser machine and the printing platform to horizontally move to the corresponding position of the next to-be-used storage tank, and subsequently repeating thesteps (2) to (4) to print layer by layer until printing is ended. The printing method can realize printing of a plurality of materials, realizes quick demoldinig in printing and can effectively solvethe problem that the printing materials cannot be printed.

Description

【Technical field】 [0001] The invention relates to a 3D printing method, in particular to a printing method of a multi-material 3D printer, and belongs to the technical field of 3D printing. 【Background technique】 [0002] A 3D printer, also known as a three-dimensional printer, is a machine that uses cumulative manufacturing technology (that is, rapid prototyping technology). Its principle is to put data and raw materials into a 3D printer, and the machine builds products layer by layer according to the program. [0003] The 3D printers of the prior art often have the following defects when printing: [0004] 1. Only one material can be printed, and multi-material printing cannot be supported. There is a problem of single printing material, and it cannot meet the requirement that one print can print multiple materials. [0005] 2. The height of the liquid tank containing the printing solution cannot be adjusted, and thus the distance between the liquid level of the printing...

AI Technical Summary

Problems solved by technology

[0004] 1. Only one material can be printed, and multi-material printing cannot be supported. There is a problem of single printing material, which cannot meet the needs of printing multiple materials in one print

[0005] 2. The height of the liquid tank containing the printing solution cannot be adjusted, and thus the distance between the liquid level of the printing material and the printing platform cannot be adjusted, and there is a problem that the printing material cannot be printed

[0006] 3. When the printing material has a high viscosity, the printing platform is slow and difficult to demould, and the demoulding efficiency is low, which affects the printing speed

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