Dels right enough as far as it goes... but 10 to 12 degrees will nearly always insure the no buzz situation, and I've never seen it to be too much too cause a problem for other concerns. But when you first get into the idea that the thing should leave the string up to the tuning pin paralell with the pin block... that doesnt always work either. I've seen pianos where if you did that you'd either have a 20 + degree string deflect, or you'd have a tuning pin hanging half way out of the pin block. And the opposite can be true as well.. I'm take the position that the primary function is to terminate the string solidly enough yield a clean sounding string. Any less then that is too little, and any more is too much. If there is a problem with the length leading up to the pins.. it can be dealt with without bringing pressure bar deflection into the picture. Cheers RicB Phillip Ford wrote: > >Establish a 10 - 12 degree string deflect angle. That should do it for > you. > > > >Cheers > >RicB > > > >Not necessarily. With an upright the deflection angle can often be much > >less than 10ยบ 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 > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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