Choose Create, Curve, Surface Curve.
Curve Surface Curve function
|Use this function to create surface curves. When you enter this function, no ribbon bar appears but the curve surface curve function is active and you are prompted to select a surface on which you want to create the curve. The curve is automatically created as a fixed entity and the function is discontinued.
Note: If no curves exist, Mastercam will abort this function and you will be returned to the General Selection mode.
|Displays the endpoints of all entities. Mastercam creates temporary points that remain visible until you press [Enter] or choose a different function. Mastercam does not create actual point entities.