I've been thinking,
Is it possible to increase spindle speed to say 6000 RPM or so?
As not too lose too much low end torque maybe put VFD in there with bit larger power motor, etc. Or is it not even worth bothering due to mill spindle limitation?
Things I am machining (aluminum/copper most of time) can really use some ramp up on speed of cutting by increasing spindle speed is what I am seeing...