Printing path planning method and system and 3D printer

Abstract

The invention relates to a printing path planning method and system and a 3D printer. The method comprises the steps that firstly, a to-be-printed shape is partitioned through an optimized improved x scanning method, and a plurality of preset rectangles corresponding to each of angles correspondingly are obtained; then the plurality of preset rectangles corresponding to each angle correspondingly are partitioned according to a z-shaped scanning mode and based on an optimal distance principle; and finally, optimizing and traversing are carried out on the path of the preset rectangle of each partition of each of sub-domains corresponding to each angle according to a preset algorithm. The printing precision can be ensured, the idle stroke length of the to-be-printed shape in a two-dimensional layered slice image can be greatly reduced, and the printing path corresponding to the lowest printing time consumption is selected as the optimal printing path, so that the printing time is further shortened, and the printing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a printing path planning method, system and 3D printer. Background technique [0002] In recent years, rapid prototyping (RP), that is, 3D printing technology, as an additive manufacturing technology, has been widely used in various model production and product testing. Multiple two-dimensional layered slice images are then accumulated and printed layer by layer based on multiple two-dimensional layered slice images to form a solid model. Compared with subtractive manufacturing, it can process products with more complex structures. 3D printing technology has been differentiated after years of development. Many different manufacturing technologies have been developed. Among them, Stereolithography Apparatus (SLA), which uses the principle of photopolymerization of photosensitive resins, was the first to be researched and developed, and has become a relatively mature and widely...

AI Technical Summary

Problems solved by technology

[0013] Although the global grid step-by-step traversal method can completely stitch the entire image, that is, the two-dimensional layered slice image, but because it does not analyze each image, that is, the two-dimensional layered slice image one by one, it is very likely to waste time Phenomena, for example, when the two-dimensional layered slice image is very small, but still need to traverse the entire working area, there is also the problem of empty travel similar to FDM technology, and the time wasted by the empty travel of each two-dimensional layered slice image is accumulated , will greatly increase the printing time of the entire part, and the printing efficiency is low

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