Technology for printing different interlayer colors through 405nm DLP

Abstract

The invention relates to a technology for printing different interlayer colors through 405nm digital light processing (DLP), and belongs to the technical field of 3D printing. The technology particularly comprises the steps that a product model is created by utilizing drawing software, and a .stl data model file is generated; the .stl data model file is imported into Dolphin Studio slicing software, slicing processing is conducted on the data model according to the set thickness of each layer, and a .3dp printing track file is generated; the .3dp printing track file is imported into a DLP printer, photosensitive resin is added into a resin tank of the DLP printer, printing parameters are set, printing is started, in the printing process, different pigments are intermittently and quantitatively added and uniformly stirred through a pigment adding, mixing and stirring device, the color of the photosensitive resin is adjusted to a set color, and then printing is continued; and finally, aproduct with different interlayer colors is printed. According to the technology, operation is easy, use is convenient, different colors can be printed according to needs, and personalized requirements are met.

Description

technical field [0001] The invention relates to a 405nm DLP printing process for different interlayer colors, belonging to the technical field of 3D printing. Background technique [0002] 3D printing, also known as additive manufacturing, is a new manufacturing technology that accumulates materials layer by layer to produce physical objects based on digital models. 3D printing equipment can process products with personalized and customized special structures. [0003] 3D printing photo-curing molding technology has higher printing accuracy and shorter printing time, so 3D printing photo-curing molding technology is developing rapidly. The principle of DLP (Digital Light Processing, digital light processing) rapid prototyping technology is to use slicing software to cut the three-dimensional model of the object into thin slices, transform the three-dimensional object into a two-dimensional layer, and then use the digital light source to make the photosensitive resin layer b...

AI Technical Summary

Problems solved by technology

[0005] At present, DLP printing can only print a single color product, and the performance of the product cannot be changed, which limits the application and promotion of DLP printing equipment

When people require that the color (or performance) of the bottom of the product is different from the color (or performance) of other parts, especially in the field of medical dentistry, it is required that the part of the bottom of the product that is in contact with the root of the tooth has a lower hardness and softer material, and the hardness of the cusp is higher. , DLP printers can't do it, and can't meet people's needs for individual requirements such as different colors and performances for different parts, which limits the application of DLP printers

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