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题名: A computing method of accurate slice contours based on STL model
作者: Zhao JB(赵吉宾) ; Xia RB(夏仁波) ; Liu WJ(刘伟军) ; Wang HB(王华兵)
作者部门: 先进制造技术研究室
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
会议录: Proceedings of the 3rd International Conference on Rapid Prototyping and Manufacturing and The 2nd International Conference for Bio-manufacturing
出版日期: 2008
关键词: Rapid prototyping ; Slicing ; STL model ; CAD
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
内容类型: 会议论文
URI标识: http://ir.sia.cn/handle/173321/9788
Appears in Collections:工业信息学研究室_先进制造技术研究室_会议论文

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