Rib overkill

[Farrell]

Or you can maintain the traditional panel approach, but you can make different sections out of different woods (finger joints in the individual flitches). You can change grain angles also mid-panel if you wish. Del talked in his Dallas design class about optimal grain angles on soundboard panels - but optimal for treble will necessitate a compromise in the bass - and vice versa. Why not make the panel with two or more grain angles - it would not be very difficult?

Terry Farrell
  
----- Original Message ----- 
From: "Mike Bratcher" <MBratPianos@indy.rr.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Monday, July 28, 2003 12:31 AM
Subject: Re: Rib overkill


> Ya' know...I had this same idea years ago.  The idea was based on the
> violin.  The panels are made of different woods to cater to different
> characteristics.  Maple for stiffness and good high end tones, and spruce
> for bass tones.  I thought about this in relation to the piano.  Maple is a
> tougher wood than spruce.  The top panel made of maple could hold crown
> better (maybe), and give better high end sustain.  While the lower panel,
> made of spruce and crowned downward,  could be thinner and give better bass
> response.  Connect these with a tone pole and you have a pianolin.
> 
SNIP