3D printing fill path generation method based on optimization of scanning line dip angle

Abstract

The invention discloses a 3D printing technology fill path generation method based on optimization of a scanning line dip angle. The generation method comprises the following steps: determining a fill path interval, layer thickness, and an SLC (Single Level Cell) file of a to-be-processed entity; with the fill path interval as an offset distance, performing offset to obtain an offset polygon Omega; according to processing efficiency and printing precision requirements, judging the priority principle adopted by a current printing layer; if the priority principle refers to efficiency priority, determining the scanning line dip angle in an efficiency priority way, and if the priority principle refers to precision priority, determining the scanning line dip angle in a precision priority way; and finally, generating an internal fill path according to a point at which a scanning line with the determined dip angle is crossed with the offset polygon Omega. According to the provided 3D printing internal fill path generation method based on the optimization of the scanning line dip angle, the scanning line dip angle in generation of parallel reciprocating fill paths is optimized, the processing efficiency and the printing precision are further promoted, and the method is simple and effective, and good in universality.

Description

technical field [0001] The invention relates to the field of 3D printing technology path generation methods, in particular to a 3D printing filling path generation method based on scanning line inclination optimization. Background technique [0002] 3D printing technology first uses computer-aided design software to construct or obtain a three-dimensional solid model through reverse engineering, and then generates a layer-by-layer section of the three-dimensional model through layered software, and obtains a three-dimensional solid by layer-by-layer processing. Since the printing process uses liquid, powder or flake materials to realize the layer-by-layer processing of the section, any shape of the object can be processed by this technology. Therefore, in some fields that cannot be completed by traditional processing technology, 3D printing technology has developed rapidly, such as construction, aerospace, machinery, biomedicine and other fields have been widely used. Altho...

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Problems solved by technology

[0004] However, the current parallel reciprocating linear path generation process does not consider the influence of the scan line inclination on processing efficiency and printing accuracy, thus ignoring the optimization of the scan line inc

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