[pianotech] crown and radius

Gene Nelson nelsong at intune88.com
Mon Jun 15 10:32:17 MDT 2009


Ron,
Thanks so much for your comments,

> The center of load support of the rib is what you should be talking about, 
> and it can be moved to where you want it by asymmetric feathering, and 
> tapering.

****In regard to the half meter rib: Given a radius of 12 meters and  chord 
of .47 meter the calculator predicts 2.1mm of crown or segment height.
If the center of load support (high point and thickest part) is asymmetricly 
shifted off center of the chord, the calc cannot be accurate and their will 
always be less crown than desired? Still a bit confused.
Gene 



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