[pianotech] new string broke twice

[Joseph Garrett]

Hmmm? The original post about this, stated note G#2. That makes it Note number 24 on my piano. So, ...I stand on my original assessment. However, the overall wrap given, originally was .118" which is way too thick for that note, so there are some discrepancies as to this whole thing. I think it behooves us to give ALL the correct information when inquiring about a problem! That would include the Note number, (NOT the string number!), the speaking length of that Note and the existing wire size that is needed to be replaced. It would, also, be of benefit to give the specs of the neighboring notes as well. Thennnnnnn, an educated response would be more likely to be given, without our batting it back and forth. The same goes for the current "discussion/cussin'" of the Soundboard crown, that has really gone waaaayyyy out there<G>
Just my take on it.<G>
Joe


----- Original Message ----- 
From: Noah Frere 
To: joegarrett at earthlink.net;pianotech at ptg.org
Sent: 7/13/2011 9:18:10 PM 
Subject: Re: [pianotech] new string broke twice


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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