快速成型的切片数据优化

Data Optimization for Slice in Rapid Prototype Manufacturing

在目前的快速成型系统中 ,普遍采用STL格式文件来表达CAD模型 ,因而在切片后截面轮廓含有大量的数据冗余点 ,影响了插补加工的精度和效率。文章针对直接插补算法 ,在分析STL文件及切片数据的组成基础上 ,提出了一种数据冗余点过滤算法 ,在保证加工精度的条件下 ,有效地滤除了冗余点。该方法算法简单 ,运算时间短 ,有效地提高了后续插补过程的稳定性 ,在数据优化后仍采用直线插补 ,既保证了加工精度 ,又加快了插补速度。

STL format file is usually utilized to CAD model in present rapid prototype manufacturing(RPM) system. Thus, the sections of RPM model include plenty of redundant data after slicing, which effects the precision and stability of following interpolation and manufacturing. In this paper, firstly, STL file and slice data are analyzed. Then a filtering algorithm is introduced. This algorithm stabilizes the interpolating accuracy and accelerates the manufacturing effectively.