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Posted by Joseph Gwinn on April 6, 2008, 3:04 pm
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> Joseph Gwinn wrote:
> > Well, I think I finally figured it out, although there is still a
> > mystery.
> >
> > {.....]
> > Joe Gwinn
> >
> A quick question how accurate is your chuck and the mild steel material,
> are the jaws worn and not gripping the piece fully. I had troubles
> holding and turning some 310 stainless which turned out to be the
> stainless being slightly triangular and that spiraling down the piece,
> the 3 jaw even though quite new would not hold the material well until
> a skim cut had been taken to make it round.
The chuck, while old and with cosmetic rust, appears to have had little
use. I took it apart and gave it a cleaning and greasing, but the
innards were pristine. It appears to be made by Pratt Burnerd, and
appears to be original equipment supplied with the 5914.
The steel bar was rusty and irregular and was in fact loose in the
chuck, so I did give the bar a skim cut. This allowed the bar to be
held securely, but it still chattered badly until I used the backgear.
Joe Gwinn
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