Hi David I kind of hedge myself with downbearing measurements. I do two things. First I measure the height of the bridge in various spots both before and after tension is let down. Secondly I take string deflection measurements with tension off the panel. The way I do the second is perhaps what you are asking for. I run a taught cloth string from the tuning pin under the front termination and across the bridge and position the back height such that it just touches the bridge but is not deflected by it. Then I measure the distance to the string rest. Then I bring the string just down to where it touches the back edge of the bridge and measure again the distance to the string rest. Both measurements are taken on the normal (90 degrees) from the string rest. This gives enough to calculate both the front bearing angle and rear angle. There are other ways of going about all this...plenty of articles written in past journals and I suppose a good deal of stuff in the archives here. Is this what you were asking about then ? David Skolnik wrote: > Richard B - > Thanks for your thorough response, a few points of which I would like to > pursue, but I'll probably break it up into individual posts, as I'm > supposed to be taking my daughter to an ice skating lesson right now. > > At 01:42 PM 04/07/2002 +0200, you RicB, wrote: > > >Measuring down bearing ?? Hmm.... I suppose > >much like I do otherwise. > > Clearly, I'm asking for a reason, but I wonder if you would indulge me a > little further and explain your method. > > David S -- Richard Brekne RPT, N.P.T.F. Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html
This PTG archive page provided courtesy of Moy Piano Service, LLC