[pianotech] new string broke twice

Noah Frere noahfrere at gmail.com
Wed Jul 13 22:18:09 MDT 2011


Isn't it Note #19?

On Wed, Jul 13, 2011 at 10:05 PM, Joseph Garrett
<joegarrett at earthlink.net>wrote:

> JD wrote: "I'd normally find/design a core of somewhere in the .045" to
> .043"
> >for a winding of that overall diameter...
>
> It's the overall diameter that is wrong, not the core. To use a
> #19.5 - #20.5 core at this point in the scale would be highly unusual
> and besides even they would be overstressed."
>
> JD,
> Say What?! Why is the use of a core wire of .043" on note number 24 be
> "...unusual"? And, how do you figure it would be "overstressed" with that
> winding size? I've run the numbers and find that to be well within safe
> limits. Unless, of course, the string is excessively long. However, the
> speaking length was not given, so I was merely extrapolating with a known
> speaking length, of that note. One of us is missing something somewhere.
> Joe
>
> BTW, pianotech overseer, where is the last post I sent? are we now,
> CENSORING? Grrr!
>
> Joe Garrett, R.P.T.
> Captain of the Tool Police
> Squares R I
>
>
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