laminated ribs

[Erwinspiano@aol.com]

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Terry
  Thanks.  Makes more sense  The big picture  coming into 
focus...5...4...3...2...1....  
    This rib idea Lends itself to a thinner  more uniform thickness panel 
then.  
   Dale

If I understand rib tapering theory correctly (and maybe I  don't - so please 
correct me), the straight tapering that Del and Ron O use is  based on 
engineering principles that suggest such a design will best support a  centered load 
more-or-less evenly along the length of the rib (and allow  freedom of 
movement at the ends). Whereas the constant thickness rib with the  sculpted tapers 
at the ends lends itself better to a compression-crowned  soundboard where the 
constant thickness of the rib will tend to induce  development of consistent 
crown as the panel hydrates (and allow freedom of  movement at the ends).
 
I realize there is everything in between also, but isn't  that the big 
picture?
 
Terry Farrell



 

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