[pianotech] Bridge Pin Drilling Angle

Ron Nossaman rnossaman at cox.net
Sat Dec 27 08:10:22 PST 2008


pianoguru at cox.net wrote:
>> Bisecting the angle made as the string goes around the 
>> pin will  lean the pin inward, not outward.
>> 
>> Ron  N
> 
> Having said what I did about bisecting the angle, I
> realized that in the highest treble, that would indeed
> result in the pin angling inward, but only in the range
> where the speaking lengths of the strings were
> perpendicular to the strike line.  However, in the tenor,
> the range I was visualizing, the pins would be angled
> outward.

They'd be angled inward relative to the notch wherever in the 
scale or relationship with the strike line, with no tonal 
penalty or benefit that I've been able to detect either. 
Relative to the bridge body, they would most certainly be 
angled out in the tenor.

Ron N



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