Thin-walled tubular model slicing method and system of five-axis 3D printer and printing method

Abstract

The invention provides a thin-walled tubular model slicing method and system of a five-axis 3D printer and a printing method. The thin-walled tubular model slicing method comprises the steps that a coordinate system is established, and a three-dimensional model of a to-be-printed workpiece is read; the gravity center of each height cross section of the three-dimensional model is extracted, and all gravity centers are sequentially connecting to obtain a gravity center curve; rotation transformation is performed on a working turntable to enable the projection of a curvature vector of the gravity center curve of the current height layer of the three-dimensional model on the horizontal plane to be zero, the rotating posture information of the working turntable corresponding to the current height layer of the three-dimensional model is obtained, and the slicing information of the current height layer of the three-dimensional model is obtained through calculation; and the current height layer of the three-dimensional model is updated, and the steps are repeated until hierarchical slicing is completed, and the hierarchical slicing information of the to-be-printed workpiece is obtained; According to the thin-walled tubular model slicing method, the projection of the curvature vector of the gravity center curve of the current height layer of the three-dimensional model on the horizontal plane is enabled to be zero through rotation transformation of the table top of the turntable, the posture of the three-dimensional model is adjusted to be vertically upward, support-free printing is realized, the printing effect is good, and the surface precision of a formed part is high.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a thin-walled tubular model slicing method, system and printing method for a five-axis 3D printer. Background technique [0002] 3D printing, also known as additive manufacturing, was born in the middle and late 1980s. It integrates information technology and manufacturing technology and is considered to be one of the important symbols of the third industrial revolution. The advantage of 3D printing technology is that it can be directly generated by computers. The three-dimensional digital model of the material can generate an entity of any shape by stacking materials layer by layer, thus making the production and manufacturing more convenient and more suitable for the future personalized manufacturing mode. Compared with the traditional subtractive manufacturing technology, it greatly reduces the time cost and material loss. At present, 3D printing has more and ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problems existing in the prior art, the present invention provides a thin-walled tubular model slicing method, system and printing method for a five-axis 3D printer, so as to solve the technical problems of complicated slicing process and poor versatility in the existing support-free printing

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