CSS (Constant Surface Speed)

Selecting the CSS item will activate Constant Surface Speed (CSS). CSS will cause the spindle RPM to constantly change based on the diameter the tool is at and the SFPM/SMPM used.
When this checkbox is marked, the SFPM/SMPM parameter is displayed.

SFPM (Surface Feet Per Minute) for inch, or SMPM (Surface Meters Per Minute) for metric.
For this parameter, enter a value for surface feed rate. Note that elliptical turning uses variable RPM so as to keep the surface speed constant.

Some functionality may be dependent on the product package. Contact your Reseller if you require a license.