3D printing forming method based on skeleton line contour recognition and area segmentation

Abstract

The invention belongs to the technical field related to 3D printing, and discloses a 3D printing forming method based on skeleton line contour recognition and area segmentation. The method comprises the following steps: S1, calculating a skeleton line in each slice layer forming contour; S2, calculating and solving the length of the main skeleton line, the diameter of the end point of each skeleton line, the deflection angle between every two adjacent skeleton lines and the deflection angle between every two adjacent edges in each forming contour; S3, dividing the area types in each forming contour into a straight square area, a smooth area, a transition smooth area, a smooth thin-wall area and a rough area, establishing an area division standard by multiple parameter values obtained through calculation in the step S2, and dividing the areas in each forming contour; and S4, planning a forming path of each area for 3D printing forming. According to the method, the problems of contour recognition and segmentation of complex contour parts are solved, and a complex path planning method with high efficiency and high robustness is provided.

Description

technical field [0001] The invention belongs to the technical field related to 3D printing, and more specifically relates to a 3D printing forming method based on skeleton line contour recognition and region segmentation. Background technique [0002] 3D printing is a common name for additive manufacturing technology. It is completely opposite to the traditional material "removal" processing method, and is an additive manufacturing method. A manufacturing method for printing a three-dimensional solid model to be processed is usually adopted in a layer-by-layer manufacturing manner. One of its key technologies is the path planning technology. For the same model, different path plans have completely different printing effects. Traditional paths such as raster path, zigzag path, profile offset path, helical path, axis conversion path, etc. have good results for specific models, but there are many problems when printing complex models: raster path and zigzag path in There are ...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a 3D printing forming method based on skeleton line contour recognition and region segmentation, which solves the problem of contour recognition and segmentation of parts with complex contours, and provides an efficient and robust Robust complex path planning method

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