rscrawford wrote:That seems pretty slow to me. You will dull your bits prematurely at that feed rate.
I know a Shark won't move very quickly, but on my larger machine I would run that bit at 300-400 ipm (X,Y,Z axis) and 18000rpm. At 0.005" per pass, your machine will not feel much if any resistance from the cut. So I'd go as fast as your machine is capable of going without losing steps. Not sure what a Shark will do, but hopefully its faster than 25ipm.
I didn't really look at the figures to be honest as this is really something the individual needs to work out for their own set up & is a part of the learning curve (at least that's how I see it). But yes 25 ipm on any machine is very slow
My own feed settings are very conservative ( I already know that much) but rscrawford's post show just how little I really know, based on what he has posted I could probably more than double my feed settings
Obviously need to increase spindle speed as well but since that is only set at about 14000rpm that isn't a problem.
Speed isn't a real issue for me BUT often when looking at machining times I wish they were a bit quicker. Time to go back to some more experimenting I guess