3 Off-line Programming Modules
3.1 Importing and Preprocessing of CAD Model
CAD model preprocessing module includes three
contents: importing CAD model, extracting the feature of
the model and displaying the model. In this paper, the
triangular grid model in common STL (STereo Lithography)
format supported by current mainstream drawing software
such as AutoCAD, SolidWorks, UGNX, etc., is used. A
triangular approximation of the workpiece surface can
represent any complex workpiece surface as a general
purpose.
The CAD model of the workpiece surface can be
formulated as:
3 Off-line Programming Modules3.1 Importing and Preprocessing of CAD ModelCAD model preprocessing module includes threecontents: importing CAD model, extracting the feature ofthe model and displaying the model. In this paper, thetriangular grid model in common STL (STereo Lithography)format supported by current mainstream drawing softwaresuch as AutoCAD, SolidWorks, UGNX, etc., is used. Atriangular approximation of the workpiece surface canrepresent any complex workpiece surface as a generalpurpose.The CAD model of the workpiece surface can beformulated as:
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