Soundboard mass

[Richard Brekne]

I seem to remember a discussion along these lines some years back 
between Del, myself and Andre. Del, if I remember correctly took the 
position that the de-ribbed old panel could be seen more or less as a 
fresh panel as far as constructing a RC&S board was concerned.  If that 
is correctly remembered... then I would think you would more or less 
scrap the old rib scale and design a new one.

I suppose he may choose to chirp in and correct and clarify.

Cheers
RicB


    For those converting original pure compression boards to rib crowned and
    supported boards, how important would it be to consider the overall
    mass of
    the total rib scale of the original design versus that of the new design
    versus, say, simply the deflection characteristics of the new rib scale.
    Further, is there a way to numerically describe the desirable
    mass/stiffness
    ratio?

    David Love
    davidlovepianos at comcast.net
    www.davidlovepianos.com