Machine everywhere

In this case, all the contouring passes along the part will be done. TopSolid'Cam doesn't takes into account the XY material which can exist or not between the part to machine (with the stock to leave)  and the stock.

In this case, if in a specific area  the material to remove (in XY)  between the part (with the stock to leave) and the stock is lower than the comparison accuracy the pass is NOT done.

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