Hi Ed, Did my e-mail make it through on Saturday. I think you sent me a post. I tried to send a private one, but it keeps comming up pianotech when I hit reply, so I apologiize that this post isn't necessarily piano related. I treid to copy your name but this computer wouldn't allow me to do that. Anyway, please let me know. Thanks. Marshall ----- Original Message ----- From: <A440A at aol.com> To: <pianotech at ptg.org> Sent: Monday, March 13, 2006 8:01 AM Subject: Re: The kinks, was v-bar/capo repair >I wrote: > >> There is another way. It doesn't require additional stuff and you > can >>tell instantly whether it is effective or not. Using a string hook, >>capture >>the offending wire between the capo bar and the string rest and give the > tool >>a twist. Just enough to create a barely discernable kink in the wire . > > Ed asks: > > >>How long does this last? Does the kink eventually release and go out > of > tune? > Have you ever broken a string doing this, or are you just kidding? >> > > Technicians NEVER break strings; strings do happen to break when we > are > moving them around, though. > This technique lasts a long time, years in numerous cases. As long as the > plastic deformation limit is not surpassed, the kink stays there. > I believe that music wire accomodates itself to tension almost > instantly, and the "stretching" process a new string undergoes is just the > wire > releasing tension around the outside radius where it is bent around the > hitch and > bridge pins, agraffes or capo, or any other point it is diverted from a > staight > line. The vast majority of flatness I see in a new replacement string > comes > from the coil. This is because the friction between the coil and pin is > sufficient to prevent the becket from ever seeing the full tension of the > speaking > length. Ergo, the coil will continue giving up slack forever, (in the > same > sense that it is mathematically impossible to completely empty the water > out of a > discarded automobile tire). Removing this slack upon installation helps > the > string to settle in, tremendously. > I have found that by gripping the coil with vise grips, and twisting it > in the direction of pull, I can usually remove about 150 cents of > flattening > right when I install the string. Another few days at pitch and the new > string > will be stable. (this is after progressively "hardening" the bends around > the > hitch and bridge pins, and lifting in front of the capo or agraffe, in > that > order). > OOps, going off a tangent there. > Regards, > > > > Ed Foote RPT > http://www.uk-piano.org/edfoote/index.html > www.uk-piano.org/edfoote/well_tempered_piano.html > > _______________________________________________ > Pianotech list info: https://www.moypiano.com/resources/#archives
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