Lead out
This parameters define the lead out mode.
The different offered choices are :
Direct
The lead out toward the face is done by directly joining the final point of the tool path to the retract point.
Perpendicular
The lead out on the face is done perpendicularly.
Tangential
The lead out toward the face is done using a circular arc.
Angular
The lead out toward the face is done according to a segment which is positioned (with an angle) with regard to the curve.
Helical
The lead out toward the face is done using an helix.
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