• Define cut lines by selecting edges or datum curves or by sketching the cut lines and projecting on the surfaces to be machined for the 3–axis, 4–axis, and 5–axis machining. Define cut lines by selecting surfaces for the 5–axis machining.

• Machine an open or closed loop of cut lines by selecting references appropriately.

• Select surfaces, other than surfaces to be machined, to be used for defining the cut lines.

• Use the Auto Cutline option to create cut line tool paths automatically for machine references that include a single closed boundary edge. The boundary edge is automatically selected as the outer cut line. The inner cut line is a point that you can drag to the desired location.

• When milling multiple non-smooth surfaces using cut lines, set the STEPOVER_TRANSITION parameter to YES to achieve a smooth tool path during spherical to conical surface transitions. The default value of this parameter is NO. You can also set the STEEP_STEP_OVER parameter to an appropriate value to create extra machining slices for a smoother tool path. You must select at least three cut lines and sequentially order the cut lines on the Cut Lines tab. See Example: Cutline Milling for details.