Light-cured three-dimensional printer laser scanning path

Abstract

The invention relates to the technical field of light-cured 3D printing, in particular to a light-cured 3D printer laser scanning path. Lasers scan liquid light-sensitive resin, the laser scanning path comprises an internal filling path body and an external edge surrounding path body which surrounds the periphery of the internal filling path body, and after the lasers conduct scanning along the scanning path, the cured light-sensitive resin is spliced into a whole; when a light-cured 3D printer conducts scanning, the lasers are used for scanning all layers of the light-sensitive resin, scanning is firstly conducted along the internal filling path body, the scanned light-sensitive resin is cured and spliced together, then scanning is conducted along the external edge surrounding path body, the light-sensitive resin which is cured after scanning along the external edge surrounding path body is conducted serves as the outer layer of a printed product, scanning of the external edge surrounding path body achieves the edge locking effect, and therefore the surface of the printed product is more smooth and cleaner.

Description

technical field [0001] The invention relates to the technical field of photocuring 3D printing, in particular to a laser scanning path of a photocuring 3D printer. Background technique [0002] 3D printing technology is an advanced manufacturing technology that has emerged in recent years. At present, 3D printing methods mainly include light curing method, lamination method, sintering method, fusion welding method, 3D printing method and so on. Among them, the light-curing 3D printing technology has the advantages of high molding precision, good surface finish, high material utilization rate, fast molding speed, and the ability to make hollow and fine structures. It is currently the most in-depth research, the most mature technology, and the most widely used one. The rapid prototyping method has a market share as high as 70%. The principle of light-curing 3D printing technology is to scan the surface of liquid photosensitive resin with a certain path through computer-contr...

AI Technical Summary

Problems solved by technology

At present, most of the common light-curing 3D printing equipment on the market adopts line scanning or simple point scanning. Although the line scanning path improves the speed of light-curing molding, it reduces the printing accuracy and surface finish. The naked eye can clearly see the printing Texture on the surface of the item; although the surface finish and printing accuracy of the printed item by simple point scanning have been improved to a certain extent, the surface finish still cannot meet the requirements of higher precision items, such as jewelry models, etc.

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