String deflection angle (was Re: Help We Do Not Need)

[Delwin D Fandrich]

----- Original Message ----- 
From: "Phillip Ford" <fordpiano@earthlink.net>
To: <pianotech@ptg.org>
Sent: August 27, 2003 11:38 AM
Subject: String deflection angle (was Re: Help We Do Not Need)


> >Not necessarily. With an upright the deflection angle can often be much
> >less than 10º and still give good speaking length termination. It
depends
>
> >on the distance between the V-bar and the pressure bar. If it's close in
> >that angle can be very slight and it will all still work quite well.
> >
> >This is another subject for which a search of the archives might be
> >useful. But in general the pressure bar should be at an elevation which
> >renders the string length between it and the tuning pins roughly
parallel
>
> >to the surface of the pinblock or plate. Whichever comes first.
> >
> >Del
>
> I don't understand why the distance between V-bar and pressure bar
> matters.  I would think only the angle would matter, and that's
> independent of the distance between points defining that angle.
>
> Phil Ford


See "V-bars, Pressure Bars & Duplex Scales, Part I," June 1995, and
"...Part II," August, 1995, The Piano Technicians Journal.

Del