Using differential geometry and vector analysis, a new tool-path generation method for freeform surface machining is presented.
以微分几何学和矢量分析为工具，提出了复杂曲面加工路径规划的新方法。
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In order to improve the precision of freeform surface, the error of multi-axis NC machining is analyzed and a more reasonable estimate for tool step is given.
The primary objective of this research is to develop an efficient and intuitive deformation tool for conceptual freeform geometric modeling by sketching input.