基于MATLAB的STL模型自适应分层方法研究  

作　　者：吴建 吴婷[1] 陈廷豪 包涵 

机构地区：[1]嘉兴学院信息科学与工程学院,浙江嘉兴314001

出　　处：《科技创新与应用》2021年第27期53-55,共3页Technology Innovation and Application

基　　金：国家级大学生创新训练计划项目(编号:202010354016)。

摘　　要：针对传统等层厚分层对曲面模型不能兼顾3D打印效率和精度的问题,提出一种基于MATLAB的STL模型自适应分层方法。该方法利用模型三角片法向量与成型方向的夹角变化关系,以及打印机的可打印范围来确定每一层的最佳分层厚度。对STL模型进行分层实验测试,结果表明,相比于传统等层厚分层,文章中的方法能够随着模型表面与分层方向的夹角变化而自适应变化层厚,在保留模型细节特征的前提下,最大程度地减少层数。算法利用MATLAB内嵌函数,程序简单,计算速度快,对于改善复杂曲面零件的打印精度和效率具有重要意义。Aiming at the problem that the traditional uniform thickness slicing cannot take into account the 3D printing efficiency and accuracy of the curved surface model,an adaptive thickness slicing method for STL Model based on MATLAB is proposed.This method uses the angle change relationship between the model triangle normal vector and the forming direction,as well as the printable range of the printer,the optimal layer thickness of each layer is determined.The slicing experiment test on the STL model shows that,compared with the traditional uniform thickness slicing,the method proposed in this paper can adaptively change the layer thickness according to the angle between the model surface and the layering direction.On the premise of preserving the detailed features of the model,the number of layers is minimized.The algorithm uses MATLAB's built-in function,therefore it is simple and has a high speed,which is of great significance for improving the printing accuracy and efficiency of complex surface parts.

关 键 词：3D打印 自适应分层 MATLAB STL模型 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术]