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For finding the optimum spindle speed for the given cutting conditions CNC machinist may experiment with the spindle speed override switch.

CNC machinist can calculate spindle speed override using this formula:

Spindle Speed Override

Sn - new or optimized spindle speed, r/min,
Sp - originally programmed spindle speed, r/min,
p - percentage of spindle override.


To calculate the spindle speed override, enter the originally programmed spindle speed and percentage of spindle override and click the CALCULATE button.

The program will calculate the new or optimized spindle speed.


   Sp =          

  p  =         


 Sn =   


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