Choose Create, Curve, Constant Parameter Curve.
Curve Constant Parameter ribbon bar
|Use this ribbon bar to create single curves on a surface. For NURBS and parametric spline surfaces, exact curves are created. For all other surface types, chord height, tolerance curve fitted cubic NURBS curves are created.
The options in this ribbon bar determine the quality of the curve and how closely the curve fits the surface or solid on which it is created.
Choose the curve quality and select a surface in the graphics window. After you select the surface, Mastercam displays a dynamic arrow on the surface. You can move the arrow to the point on the surface where you want to create the curve.
Note: AutoCursor is unavailable during the use of this ribbon bar.
F – Flip
Q – Curve quality
P – Apply
O – OK (fixes live entity and exits function)