This field is used when the Gouge Check Lead Move is set to Yes.
Angles are used to define a line and an arc lead move. The angle with a tangent to the part contour defines a line lead move. The angle from the center of an arc to the end points of the arc defines the arc lead move.
If a gouge is found on a lead move, adjustments are made in these lead move angles to prevent the gouge. The adjustments are made in 1° increments. The adjustments will not be greater than the number of degrees you indicate for this parameter.
An example is the lead move angle is 60° and the Lead Angle Tolerance parameter is 5°. SURFCAM will not make an adjustment greater than 65°. If the gouge occurs in this range, the lead move is deleted.