Generate retract points
This parameter is available ONLY when the step over is lower or equal to the tool radius. Indeed, in the other case, it's not possible to make this lead out.
Generate retracts points
In that case, when the tool is in the minimum Z, it makes first of all a XY lead out with feed rate along a direction where the material was first removed.
To create this XY movement, a check is made according to the state of the stock at each pass.
Finally a Z lead out is done in rapid mode.
In that case, no XY lead out movement is realized. The Z lead out movement in rapid mode is directly made.
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