Photocuring 3D printing method, 3D printer, computer device and medium

Abstract

The invention provides a 3D printing method, a 3D printer, a computer device and a computer readable storage medium. The photocuring 3D printing method comprises the steps that a three-dimensional model is subjected to layering treatment, a plurality of section layers are obtained, and contour information of each section layer is obtained; a line segment formed by two adjacent edge contour points is selected from the section layers, pixel points through which the line segment passes are determined, and the area ratio of an inner region formed by segmenting the pixel points by the line segment to the pixel points is calculated; a gray value of the inner region is determined according to the area ratio; and when a gray-scale map is generated based on the contour information of the section layers, the gray-scale value of the inner region is modified to the gray-scale map. According to the method, the edge anti-aliasing is realized by processing the edge contour information instead of carrying out edge anti-aliasing processing on the grey-scale map, so that the 3D printing precision can be improved.

Description

technical field [0001] The present invention relates to the field of three-dimensional (Three Dimensions, 3D) printing, in particular to a photocuring 3D printing method, a 3D printer, a computer device and a computer-readable storage medium. Background technique [0002] 3D printing is rapid prototyping technology, which is a cumulative manufacturing technology, also known as additive manufacturing. It is based on a digital model file, using special wax, powdered metal or plastic, etc. Layers of bonding material to create three-dimensional objects. In the existing light-curing 3D printing, the 3D model is first layered, and each layer is converted into a grayscale image with different grayscale values ​​for each pixel, and then light is applied to each layer of the image, and different grayscales induce different amounts of photosensitive resin. , to achieve a solidified model. Since the edge of the model appears to span different pixels on the image, and may occupy diffe...

AI Technical Summary

Problems solved by technology

The grayscale image required for printing is generated by the slicing software through the outline of each layer. When it is generated, there are already some errors on the edge, and then the anti-aliasing operation is performed on the generated image. The actual result will be twice Error, so there will still be a large error on the edge of the model

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