Originally Posted by
Biggs427
You are right, I can't imagine how the so-called speed control would keep up with these chip loads.
I tested a lot in the last week and for 1/8 Chinese cutters, I'm using 0.0015 to 0.002. Less than that will burn the cutter. For 3/16, it is 0.002-0.003. All at 0.015-0.020 DOC With these numbers, the spindle can handle it without too big rpm fluctuations.
For wood, I try to follow what the manufacturer recommendation but if I feel that my machine might flex too much, I take shallower cuts.
I'm waiting for Amana cutters to mill alu and will apply the same rule except that I think I will take shallow DOC right off the bat and see how the machine reacts.