John, What exactly does the "$1000 straightener" do. I have heard of these machines but I've never had the opportunity to view one? Tom Servinsky,RPT ----- Original Message ----- From: "John Delacour" <JD@Pianomaker.co.uk> To: <pianotech@ptg.org> Sent: Friday, October 05, 2001 4:17 PM Subject: Re: String rollers. > At 13:33 05/10/01 -0500, Ron Nossaman wrote: > > > > > I also straighten > > >all wire before installing and never use it straight from the coil. > > > >I've heard a lot through the years about how necessary this was, but I was > >never able to detect any difference one way or the other. Mine go straight > >from the coil to the piano. > > Yes, I don't think it makes any detectable difference, though that bend can > never be eliminated on the piano unless you apply infinite tension. By the > same token, even a wire that has been "perfectly" straightened with respect > to itself will always dip towards the middle by the force of gravity, so > the only way to have a straight string is to leave it bent just the right > amount to compensate for the downward pull of the earth and make sure to > fit it as a hill and not a valley. Stuff for maniacs. > > The reason I straighten the wire is that I have a $1000 straightener > sitting there for the bass string work and it would be silly not to use it, > because it makes the job so much more convenient. > > JD > >
This PTG archive page provided courtesy of Moy Piano Service, LLC