[pianotech] new string broke twice

[Joseph Garrett]

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