Three-dimensional multi-head assembly dynamic inclined scanning 3D printing method

Abstract

The invention discloses a three-dimensional multi-head assembly dynamic inclined scanning 3D printing method. The method mainly adopts multi-head laser engine arrays; multiple laser engine arrays synchronously print to effectively improve the printing capacity; graph decomposition and multi-head assembly exposure are performed; graphs needing to be printed are decomposed to Nx*Ny parts according to the number Nx, Ny of laser engines; all the graphs needing to be printed are distributed to the engines in appointed positions for area synchronous printing of complete graphs; the method dose not theoretically limit lengths, widths and heights of 3D graphs and internal fineness degrees of the graphs; the printing speed is not influenced by the lengths and the widths of workpieces needing to beprinted; and compared with traditional 3D printing capacity, the method is multiple times of the traditional 3D printing speed, and belongs to a parallel high-speed dynamic scanning 3D printing technology.

Description

technical field [0001] The invention relates to 3D printing, in particular to a 3D printing method using a multi-head laser engine array, high-precision, high-speed, super-large three-dimensional digital graphic splicing and dynamic scanning. Background technique [0002] 3D printing technology is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects through layer-by-layer printing. It can print parts, toys, shoes and even human organs, etc., but 3D printing generally has the following problems: [0003] 1. Low precision of printed parts: [0004] Traditional printing parts can only achieve 100um precision, and smaller and finer precision cannot be achieved [0005] 2. Large parts are difficult to print: [0006] Only small parts can be printed, and it takes too long to print large parts [0007] 3. Slow printing speed: [0008] It usually takes several hours to print a mold, and the higher the precis...

AI Technical Summary

Problems solved by technology

[0003] 1. Low precision of printed parts:

[0004] Traditional printing parts can only achieve 100um precision, and smaller and finer precision cannot be achieved

[0005] 2. Large parts are difficult to print:

[0006] Only small parts can be printed, and it takes too long to print large parts

[0007] 3. Slow printing speed:

[0008] It usually takes several hours to print a mold, and the higher the precision of the mold, the longer it takes