Curve on Bridge Bottom

Ron Nossaman RNossaman@KSCABLE.com
Sat, 04 May 2002 11:47:44 -0500


>
>                                        Richard, Terry
>                       It doesn't take much to flatten an unsupported rib as
> it  doesn't really take on its maximum stiffness till after it becomes part
> of the ply wood componet comprising the whole soundboard system at which
> point the cumulative resistive forces of cross banded woods and compression
> takes effect.  I agree with Ron that the bridge because of its shape simply
> rotates as the board flattens but there is still some nominal resistance to
> bearing. Every little bit does some good. 100 lbs is a 100 lbs which IF that
> is what it is, is roughly the same reisistance as one rib
>>
>>
>> --
>> .>>>>>>>Best>.................Dale Erwin
>



And we all know how often the soundboard goes flat in the low treble area,
crowned bridge or not.

Ron N


This PTG archive page provided courtesy of Moy Piano Service, LLC