[pianotech] crown and radius and load

[Ron Nossaman]

Gene Nelson wrote:
> 
> In reference to the attached illisturation:
> Assume the dimensions width and height at the center of the rib were 
> used to help calculate - lets say a 60 pound load from string 
> downbearing - throw in deflection as well.
> If the bridge placement is shifted three or four divisions to the right 
> of center - would these load supporting characteristics of the rib be 
> altered? 

Not a lot.


>If so is it worth altering the W & H dimensions at the offset 
> bridge location? Am I splitting hairs?
> Gene

I'd not worry about the W & H once you've calculated them to 
your load, and just make the feathering a little shorter on 
one side, and a little longer on the other. Ever see anyone 
shoot a Japanese bow?
Ron N