Bridge pin angles

[Phillip Ford]

Phil F:
> >>Also you mentioned the clamping effect from the angled bridge pins and
> >>the sidebearing.  I hadn't really been thinking about that.  But because
> >>of the pinching effect at the pins, the sidebearing is also going to be
> >>pushing the string down into the cap at the pin.  I don't know how
> >>significant that load is.  Time to run another number.

Ron N:
> >
> >Wasn't that the 5.4 lb figure?
>
>You're right.  I lost my head there for a moment in the excitement of
>getting to do another calculation.  This number is twice the downbearing
>figure.  So in your example of pulling a string up until it breaks and
>seeing immediate indentation, this 'pinching' from the sidebearing is a
>bigger contributor than the downbearing.
>
>Phil F

Not to mention that if your string's designed to be at 150 lbs tension at 
60 percent breaking strength you would have to pull the string to 250 lbs 
(nominally - probably more) to break it.  That runs the 5.4 lbs 'pinching' 
figure up to 9.0 lbs and the downbearing figure from 2.7 lbs up to 4.5 lbs 
for a total of 13.5 lbs.  That's getting up there.  I'm not surprised that 
that would indent the cap.

Phil F

PS  How did we get two threads going one titled Bridge Pin Angle and the
other entitled Bridge Pin Angle(S)