Hallet Davis teardown update

[erwinspiano at aol.com]

Dean
  Sorry
 Selective reading again.  I agree.  No advantage. Without the strings on is there any board crown when measured with a string  on the bottom?
  Dale





-----Original Message-----
From: Dean May <deanmay at pianorebuilders.com>
To: 'Pianotech List' <pianotech at ptg.org>
Sent: Sat, 7 Jun 2008 6:53 am
Subject: RE: Hallet Davis teardown update




Yes! A raised platform for the plate to sit on. 

 

When I went to check downbearing I was amazed to find positive downbearing on one note and negative on the next. I told you it had agraffes on the bridge, right? Well one had high holes and the next one had low holes all the way down the scale. It appears to be set up for zero net downbearing. If that is the case, I don’t think there would be any advantage in install the suspension bolts. 

 

I have a spreadsheet program for scaling developed by Doug Rhodes: http://www.mmdigest.com/Tech/drhodes_strng.html 

 

My wife has just called me to the table: Belgium waffles with fresh picked Indiana strawberries. 

 

 

 


Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802


 




From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of erwinspiano at aol.com
Sent: Friday, June 06, 2008 11:37 PM
To: pianotech at ptg.org
Subject: Re: Hallet Davis teardown update


 

Dean
   The Henry Miller has 23 bass as well but the shape of your bridge should yield a far better tension overall. Beautiful legs baby!! I'll bet it has the raised  wooden paltform for the plate to sit on. You may be better off putting a the new adjustablee suspension bolts in. Having fun yet?
  Dale





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