Modular laser 3d printer

Abstract

The invention relates to a modular laser 3D printer. Its purpose is to provide a modular 3D printer with good stability, fast printing speed and high printing accuracy. The invention includes a laser 3D printing module, a resin pool, a hanging platform and a slide rail. The laser 3D printing rapid prototyping module is arranged on the base at the lower part of the printer bracket, and a quartz glass plate is arranged on the working plane at the top of the printer bracket. A resin pool is placed at the top of the board, a slide rail is arranged along the vertical direction at the edge of the top of the printer support, and a suspension platform is arranged on the slide rail. The laser 3D printing rapid prototyping module also includes a casing, a laser, a field lens, a scanning motor driver, an X scanning motor and a Y scanning motor. The field lens on the side wall of the casing is located directly below the quartz glass plate. A laser, a scanning motor driver, an X scanning motor and a Y scanning motor are positioned and installed inside the housing, wherein the X scanning motor and the Y scanning motor are fixed on the inner bracket, and the inner bracket is sealed with the laser.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a modular laser 3D printer. Background technique [0002] Laser 3D printing is based on mathematical model files, using special wax, powdered metal or plastic and other bondable materials to construct objects by layer-by-layer printing and bonding. It is the opposite of traditional material processing, and it is a new form of three-dimensional printing that is manufactured layer by layer by adding materials. With the rapid development of 3D printing technology, with the advantages of speed and precision, laser technology as a new energy source is widely used in 3D printing, among which photosensitive resin selective curing process (SLA) occupies a dominant position in the market. SLA adopts the principle of three-dimensional engraving. The resin tank is filled with liquid photosensitive resin, and it is quickly cured under the scanning irradiation of ultraviolet laser to directly obta...

AI Technical Summary

Problems solved by technology

[0003] However, the rationality and optimization degree of the existing 3D printing optical path system directly affect the printing accuracy, speed and stability. CN 204263551 discloses an imaging device for a 3D printer. In order to achieve the best focusing effect, it is necessary to combine the field lens, The galvanometer, the second galvanometer and the convex lens are arranged and analyzed to find the best installation position of each component. In this process, the position of each component needs to be adjusted continuously, which is time-consuming and laborious, and the printing accuracy, speed and printing accuracy cannot be guaranteed at all. Requirements for product stability, especially in the application fields of jewelry modeling, dental molds, and prototype models. Due to defects such as poor accuracy, speed, and stability, domestic SLA printers are increasingly unable to meet the needs of high-end applications.

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