A method and system for generating a simple polygonal multi-layer rotating body for 3D printing

Abstract

The invention discloses a simple-polygon multilayer rotating body generating method and system for 3D printing. The simple-polygon multilayer rotating body generating method for 3D printing comprises the steps that (1) a current layer is initialized to be an adjacent outer layer, and with the minimum polygon area of the swept surface of the current layer as the optimization object, the optimal symmetry axis in the current layer is found; (2) according to a rotation angle, the position and scaling of the current layer are optimized, and a connected inner layer of the current layer is obtained; (3) the obtained connected inner layer of the current layer is used as the outer layer, and the step (1) and the step (2) are executed in an iterated manner until the area of the current layer is smaller than a set value, and all the layers of the given polygon are obtained; and (4) data of all the layers of the given polygon are made to generate a three-dimensional module, the three-dimensional module is input into a 3D printer, and therefore the multilayer rotating body is obtained.

Description

technical field [0001] The invention belongs to the field of 3D printing, and in particular relates to a method and system for generating a simple polygonal multi-layer rotating body oriented to 3D printing. Background technique [0002] 3D printing, also known as Additive Manufacturing (AM), is a technology that uses digital model files as the basis to manufacture entities by adding materials layer by layer. 3D printing has natural advantages in customized geometric design and processing. It is more and more widely used in medical, education, entertainment, fashion and other fields. It is more convenient to instantiate the model, and its optimization problem has also begun Get the researchers' attention. [0003] In order to save printing materials and printing time, the internal filling structure of the model is usually changed, the model is deformed or printed in blocks after cutting it, so as to reduce its demand for supporting structures. Therefore, we hope that the g...

AI Technical Summary

Problems solved by technology

Although this method is efficient, it also has some limitations: (1) If the offset method is used directly for layering, the shape information of the polygon will be destroyed as the layers are continuously offset; (2) ) In order to preserve the shape information, consider directly using the scaling method for layering

In the static case, direct scaling can meet the user's requirements, but when each layer rotates around the axis, collisions between layers may occur, thus affecting the degree of freedom of rotation of the entire structure

[0005] In summary, the existing 3D printing-oriented simple polygon multi-layer rotating body generation method can achieve layering, but does not consider the collision problem during rotation

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