JIM MOWL Wrote:
-------------------------------------------------------
> Tom Kirkman Wrote:
> --------------------------------------------------
> -----
> > Some years back we performed some pressure
> tests
> > on guides that had been A. wrapped but not
> coated
> > with anything, B. wrapped and coated with CP
> and
> > epoxy, C. wrapped and coated with epoxy only.
> The
> > side pressure limit difference between CP
> wraps
> > coated with CP and without (epoxy only) was
> less
> > than 7%. In other words, using CP does not
> create
> > inherently weak guide wraps.
> >
> > What we found was that as long as something
> formed
> > a "shelf" along the edge of the guide foot, the
> > guide frame would distort before any slippage
> > would occur. This can be done with either CP or
> > epoxy, although being much thinner it takes a
> > great deal more CP to achieve it.
> >
> > My point earlier is simply that it is the
> thread
> > that holds the guide to the rod, not the CP or
> the
> > epoxy, although you are certainly correct that
> > they do tend to stabilize the guide within the
> > thread.
> >
> > ...................
>
> Thanks for the interesting info Tom.
> It leads me to the next question that has been
> beat to death and answers are as vairied as CP
> preferences...how much thread tension, and is
> there such a thing as too tight, other than the
> obvious indications of thread fraying or braking?
> I've heard too tight can cause blank failure,
> tight but still be able to move guides for
> alignment but my ability and their ability to move
> guides is probably different. Different size
> guides give better leverage ect ect.....It may
> sound like splitting hairs but I have pondered
> getting an inch pound torque wrench to use on the
> thread tensioner so when I find just the right
> tension I can replicate it as close as possible
> every time.....Can you say obsessive compulsive???
> HE HE!
Interesting! I have read this with great interest and its sparked a question about thread tension. I did a search on our site for this topic alone and there is allot of .....(seeming) information on just how much tension is applied to thread with wrapping. I also read about a tool measuring tension applied. I have seen many different devices for getting what the builder desires in getting their satisfactory results. I am sure every builder has there preference in the tools they use as do I. The question that I have in this thread is what Jim commented about here Quote:
( I've heard too tight can cause blank failure) This I feel needs more incite and I have not read anything about this in my time on the boards or perhaps I missed it. With respect to all builders out there do we have any more on this subject matter ? Have a good day today folks!
Rick H.
rwheil@msn.com
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