On Fri, 13 Feb 2015 18:34:20 -0600, Ignoramus4453
wrote:

Karl, how do you know, how did you prove to yourself that you have a
runout problem, and not, say, a following error problem.


I'm an engineer and a machinist, so I measured it VBG More runnout
at end of long tool holder, average about 1.4 thousanths. Best tool
was my hole centering guage, that way all you have to do is hold the
unit while rotating the quill by hand.