Rapid prototyping SLA 3D printer and printing method thereof

Abstract

The invention relates to the technical field of 3D printers and printing methods, in particular to a rapid prototyping SLA 3D printer. The rapid prototyping SLA 3D printer comprises an SLA 3D printer body, wherein the SLA 3D printer body comprises a hollow cabinet body and a support which extends upwards along one side surface of the cabinet body, wherein a laser scanning device is arranged at the front end of the bottom surface of the cabinet body, a reflecting mirror is arranged at the center of the bottom surface of the cabinet body, a resin trough is arranged right above the reflecting mirror, the bottom surface of the resin trough is fixedly provided with a piece of high-transparency quartz glass, the high-transparency quartz glass is fixedly arranged on an iron plate, the iron plate is fixedly connected with a motor on the bottom surface of the cabinet body, a lifting platform is arranged right above the resin trough, the support is provided with a vertical slide rail, and the lifting platform can slide up and down along the vertical slide rail. The invention also discloses a printing method of the rapid prototyping SLA 3D printer. Compared with the prior art, the rapid prototyping SLA 3D printer has the advantages that the prototyping speed is high; since a downward-pulling mechanical structure for eliminating the vacuum force is arranged, the rate of finished products is greatly increased, the precision is high, and the printer is particularly suitable for producing a prototype with high precision requirement and a complicated structure; the structure is simple, the operation is convenient, and the production cost is greatly reduced; therefore, the rapid prototyping SLA 3D printer can be widely popularized and used.

Description

technical field [0001] The invention relates to the technical field of object 3D printers and printing methods, in particular to a rapid prototyping SLA 3D printer and a printing method thereof. Background technique [0002] Using a printer is like printing a letter: Tap the "Print" button on a computer screen, and a digital document is sent to an inkjet printer, which sprays a layer of ink onto the surface of the paper to create a second copy. dimensional image. With 3D printing, software completes a series of digital slices through computer-aided design (CAD) and sends information about those slices to a 3D printer, which stacks successive thin layers until a solid object is formed. The biggest difference between a 3D printer and a traditional printer is that the "ink" it uses is a real raw material. [0003] There are various forms of stacking thin layers. Some 3D printers use an "inkjet" method. For example, an Israeli 3D printer company called Objet uses a printer n...

AI Technical Summary

Problems solved by technology

However, photocuring rapid prototyping technology also has two shortcomings. First, the raw material of photosensitive resin has certain toxicity, and the operator needs to pay attention to protection when using it. Secondly, the prototype of photocuring molding is very good in appearance, but its strength cannot be compared with real finished products. In comparison, it is generally used for prototype design verification, and then transforms the rapid prototype into an industrial-grade product through a series of subsequent processing procedures

In addition, the equipment cost, maintenance cost and material cost of SLA technology are relatively high. Therefore, 3D printers based on light curing technology are mainly used in the professional field, and there is no application in the domestic desktop field.

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