turning unwanted tapers
I was turning a spindle recently using 416 SS. If I made a cut with a good depth of cut (or even as low as .005" doc) and a fairly high speed (carbide inserts) I got a very nice finish but with a slight taper, about .0007 to .0012" over 6". Now if I take another cut at the same depth the taper is machined out but the finish sucks, unwanted lines, dig ins etc. I'm making an assumption that this is due to the tool springing up and down because of lack of loading when the cut is very light, so how do I get rid of this so I can take a light finishing cut.
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