Bridgetop Extravaganza Revisited

[Erwinspiano@aol.com]

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In a message dated 12/19/2002 10:38:54 PM Pacific Standard Time, 
sbellieu@mindspring.com writes:
                      Steve
>              I get it and Yes I meant .05 or 1/2 degree. The .05 in the 
> tenor in the strung condition isn't bad if the board rises whent he strings 
> come off. In this scenario reducing the bass bearing might distribute the 
> overall bearing balance between the bass and tenor but to do that you'll 
> have to recap the bass bridge at a lowere elevation and possibly cap the 
> tenor at a higher one but all this is going to be relevant to the amount of 
> crown availably. If the board really is flat it should'nt be carrying that 
> much bearing any way IMHO.

       Dale Erwin

> Dale Erwin wrote:
>  Could you share how it is you're measuring 1.5 degrees of bearing on the 
> bass and with what. If the rear string length was 8 inches( possible on a 
> D) 8 Times .026=.208 or (1.5 degrees) of distance bearing . Considering 
> this bass bridge has no cantilever  I don't mind seeing this at the top end 
> of the bridge but I'd like to see .05 degrres in the mono 
> section........................
>   
> Dale,  All measurements referred to so far were from the strung piano.  
> Individual strings were removed and thread/gap measurements were taken.  I 
> was conservative in the bass and subtracted for the twisted part of the 
> string riding on the hump.  Note # 3 showed 1.3 deg, note # 10 showed 1.7 
> deg, and note # 19 showed 1.3 deg.  Inverse tangent of (gap/rear length).
>  Did you mean to write .5 deg in stead of .05 ?   Just for giggles I 
> checked one of the previously measured tenor bridge strings in the middle 
> of the overstrung section after the bass strings were off.  (The following 
> day)  It came up from .06 deg to .5 deg.
>   
> 


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