Detecting and removing gouges in the process of toolpath generation for machin- ing free forms is an important phase. The modules of gouge removal are considered to be vital in any computer aided manufacturing (CAM) software. Instead to generating toolpaths and then searching interference positions, the Process usually used, an approach is presented in which the surface is pre- Processed in order to discard the zones of potential interference probability From the domain of definition of the surface. Afterwards, a simple sweeping Process on the parametric space of the surface can generate interference-free Toolpaths. This pre-processing approach has the advantage of eliminating inter- ferences regardless of the orientation of the surface, and the chordal and scallop Height tolerances for a given cutter.
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