基于三维打印原理的计算机辅助模型制作

分析了三维打印的工作原理，并基于工作原理研究了计算机辅助模型制作的模式。用等距或不等距的截面与计算机三维模型求截交线，并对截交线进行处理，将截交线打印绘制于具体板材上，然后对板材进行剪切，最后依次将材料一层层堆积而成实物模型。以具体实例详细介绍制作流程，并分析了其中的注意事项。

CAD Modeling Based on the Principle of Three -dimensional Printing

This paper analyzes the working principle of three -dimensional printing .Based on this principle ,it studies the method of CAD modeling .First ,use the equidistant or not equidistant section and the computer three -dimensional models to gain intersection line .After processing the intersection line ,we draw it on the specific boarding material .Then we cut the boarding material and the physical model is made by accumulating the materials layer by layer .This paper introduces the manufacturing procedures with specific examples and analyzes the relative precautions .