Posted by BillS on March 16, 2018 at 12:30:36:
In Reply to: Re: Hobber Work Spindle Runout posted by TLueken on March 14, 2018 at 09:04:52:
Is the arbor threaded for tightening workpieces?
Are you measuring runout:
near dead center?
before and after tightening workpieces?
Next, you want to change one thing at a time -
(1) look at runout of arbor by itself.
(2) move dead center into place
(3) mount workpieces on arbor
(4) tighten nut on arbor against workpieces
Based on each step's singular effect on runout, this should be enough info to determine cause.
Let us know what you find.
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