More CC vs RC questions was RE: Killer Octave & Pitch Raise

[Clark Sprague]

---------------------- multipart/mixed attachment
------=_NextPart_000_0030_01C51598.88672300
RE: More CC vs RC questions was RE: Killer Octave & PitchHello, Mr. =
Overs!  Excuse my ignorance and curiosity, but how do you figure how big =
this "fish" should be, and how do you come up with what size the =
soundboard should be?  (ie: where to place the cutoff bars?)  Why should =
the manufacturers, for many decades advertise that the bigger the =
soundboard area, the bigger the sound, and then we put in cutoff bars to =
decrease that "essential " size?  There are others out there who would =
like to "tool up" to do soundboards, as well, and do them well.  How do =
you figure out how to design soundboards with the knowledge that seems =
to be expanding all the time? =20
Clark A. Sprague, RPT
  ----- Original Message -----=20
  From: Overs Pianos=20
  To: Pianotech=20
  Sent: Friday, February 18, 2005 1:59 AM
  Subject: RE: More CC vs RC questions was RE: Killer Octave & Pitch =
Raise


  Davids both and all,


    It's an extension of the rim inwards toward the bridge from behind =
at the upper end of the piano.  It's designed to reduce the amount of =
excess soundboard area at the very top of the scale.  It's called a fish =
because the shape of the extension is somewhat fish shaped.  Maybe Terry =
or Ron have a picture they could post.=20

    David Love
    davidlovepianos@comcast.net
    -----Original Message-----


  Got any images of your sound board cut-off David Love? I'd be =
interested to see it.


  Here's a link to the Steinway D we re-boarded with an RC&S version =
last year. The fish is the cut-off behind the treble bridge.


  http://overspianos.com.au/stdctoff2.jpg


  Since this was the first treble cut-off I'd fitted to a D, I erred on =
the conservative side. The next one will have more area cut off in the =
high treble. There's also an extra back brace where the 'bell' used to =
be. The bridge is just sitting in place to show where it will be located =
once the panel is made.


  Ron O.




--=20
OVERS PIANOS - SYDNEY
     Grand Piano Manufacturers
  _______________________

  Web http://overspianos.com.au
  mailto:ron@overspianos.com.au
  _______________________


-------------------------------------------------------------------------=
-----


  No virus found in this incoming message.
  Checked by AVG Anti-Virus.
  Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 2/14/2005

------=_NextPart_000_0030_01C51598.88672300
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/f8/9c/44/cf/attachment.htm

------=_NextPart_000_0030_01C51598.88672300--
---------------------- multipart/mixed attachment
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 2/14/2005

---------------------- multipart/mixed attachment--