When you use Calculate, the Spindle Speed and the Surface Speed are like one parameter. When one changes, the other changes.
Select a button by a parameter to change that parameter. Make a change in another parameter. The parameter that remains is not changed. An immediate change is made in the parameter you first selected.
Examples
1 Click the Feed Rate button. Change the Spindle Speed (or Surface Speed) and/or the Feed Chip Load to see the Feed Rate change.
2 Click the Feed Chip Load button. Change the Spindle Speed (or Surface Speed) and/or the Feed Rate to see the Feed Chip Load change.
3 Click the Spindle RPM and Surface Speed button. Change the Feed Rate and/or the Feed Chip Load to see the Spindle RPM and Surface Speed change.
SRM