Choose Create, Curve, Curve on One Edge.
Curve on one edge ribbon bar
|Use this ribbon bar to create a curve on a single surface edge.
After you select a surface, move the dynamic arrow to the edge on which you want to create the curve. Then enter a value in the Break Angle field and press [Enter].
Mastercam looks ahead on the straight line of the surface edge and calculates the end of the edge at the point where the line turns by a value greater than or equal to the defined Break Angle.
Note: AutoCursor is unavailable during the use of this ribbon bar.
B – Break angle
F – Fit arcs and lines
P – Apply
O – OK (fixes live entity and exits function)