Fellow machinists: my students and I are doing an experiment we are going to find as many different formulas for calculating spindle speed as we can then graph the results...we want to test to see which is the closest and to see how many there are

Currently I use RPM = SFM x 4 รท diameter...

What do you use?

Thanks!!!

Currently I use RPM = SFM x 4 รท diameter...

What do you use?

Thanks!!!

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