A kind of dlp 3D printer printing method and device

Abstract

A DLP 3D printer printing method and device provided by the present invention relate to the field of three-dimensional printing, wherein the method includes, according to the height of the preset printing layer, slicing the three-dimensional model to be printed layer by layer to obtain multiple printing layers; Each of the printing layers is decomposed into a plurality of separate polygons; according to the preset DLP projection size, each of the polygons is divided according to a preset inclination angle to obtain a plurality of rectangular blocks of each polygon; and each of the printing layers is determined The printing order of the multiple rectangular blocks corresponding to the layers enables the DLP 3D printer to print out the three-dimensional model layer by layer according to the printing order. It can make the DLP 3D printer suitable for printing large-scale three-dimensional models, and obtain higher printing efficiency under the premise of ensuring printing accuracy.

Description

technical field [0001] The invention relates to the field of three-dimensional printing, in particular to a DLP 3D printer printing method and device. Background technique [0002] 3D printing, also known as additive manufacturing, is a rapid prototyping technology. 3D printing is based on digital model files, using special wax, powdered metal or plastic and other bondable materials to construct objects in a layer-by-layer manner by printing layer-by-layer adhesive materials. [0003] With the continuous development of 3D printing technology in recent years, more and more people have benefited from this technology, and various 3D printer products have also appeared on the market. Among them, fused deposition modeling (Fused Deposition Modeling, FDM for short) 3D printers and stereolithography appearance (SLA for short) 3D printers are the most widely used. Compared with FDM 3D printers, SLA is better in terms of printing speed, printing accuracy and smoothness of the print...

AI Technical Summary

Problems solved by technology

[0005] For printers based on the DLP principle, due to the limitation of the intensity of the projection light source, the projection light source must be concentrated in a small area to allow the light-cured material to solidify quickly, thus limiting the size of the model that the DLP printer can print, making DLP It is difficult for printers to meet the printing needs of large-scale models, which limits the wide application of DLP printers

Images