[pianotech] Radial rib question

[Ron Nossaman]

David Love wrote:
> I’m curious how those of you who do radial ribs arrays deal with the 
> fact that in such a pattern the ribs will be closer together on the bent 
> side of the case creating somewhat of a differential in stiffness from 
> one side of the board to the other.  Do you do anything to compensate 
> for that?  I can see a couple of approaches if it mattered:  First, stop 
> every other rib somewhat short of the rim on that side; second,  taper 
> the ribs slightly narrower moving toward the bent side.  Third, ignore 
> it and go to the next problem.    


I mostly ignore it. I figure the center of support is mostly 
along the bridge line, which is mostly centered on the ribs, 
and the stiffness at the point I think it most matters is 
still (mostly) controllable.

Relatively speaking,
Ron N