A computing method of accurate slice contours based on STL model | |
Zhao JB(赵吉宾); Xia RB(夏仁波); Liu WJ(刘伟军); Wang HB(王华兵) | |
2008 | |
会议名称 | The 3rd International Conference on Rapid Prototyping and Manufacturing and The 2nd International Conference for Bio-manufacturing |
会议日期 | 2008 |
会议地点 | Beijing, China |
关键词 | Rapid prototyping Slicing STL model CAD |
中文摘要 | STL model has become a standard of RP technology, but the slice error due to tessellation is so high. To improve the precision of slice contours, a novel slicing method is presented to compute accurate contours curve based on STL model. At first, normal vector of two vertices sharing an edge of a triangle facet to be sliced is calculated, An interpolation curve is constructed in normal section to proximate the original curve in normal section in terms of the position of the two vertices and the tangent vector at the two vertices. The exact points belonged to slice contour are obtained by calculating intersection points between the interpolation curve and slice plane. At last, the accurate smooth contours are achieved by fitting the intersection points with cubic B-spline curve. Experiment shows that the presented method is feasible and reliable, the precision of cross contours from proposed slicing method approximates to direct slicing of original CAD model. |
产权排序 | 1 |
会议录 | Proceedings of the 3rd International Conference on Rapid Prototyping and Manufacturing and The 2nd International Conference for Bio-manufacturing |
语种 | 英语 |
内容类型 | 会议论文 |
源URL | [http://ir.sia.cn/handle/173321/9788] |
专题 | 沈阳自动化研究所_工业信息学研究室_先进制造技术研究室 |
推荐引用方式 GB/T 7714 | Zhao JB,Xia RB,Liu WJ,et al. A computing method of accurate slice contours based on STL model[C]. 见:The 3rd International Conference on Rapid Prototyping and Manufacturing and The 2nd International Conference for Bio-manufacturing. Beijing, China. 2008. |
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