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Abstract: Because
the STL file is easy to generate and does not require sophisticated CAD
system for support, it has become a standard file format for the layered
manufacturing, but there is a trade-off between the accuracy and file
size of the STL file. Presents a max-fit biarc curve fitting technique
to reconstruct STL slicing data with higher accuracy and to decrease the
file size remarkably. Technics experimentations show that the proposed
biarc curve fitting technique can significantly improve the accuracy of
parts by smoothing the intersection points for layered manufacturing and
require less strict adjacency tolerance while compared with the
traditional linear and/or circular arc fitting technique.
Key words: Layered manufacturing STL
Curve fitting Smoothing
CLC No: TH16
国家“十五”863计划基金资助项目(2001AA423220).
Received 20011226, received in revised form 20020320
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