[pianotech] re design

[PAULREVENKOJONES at aol.com]

Hi Gene! (I always feel so clean when I can address someone that  way!)...
 
I frankly don't see any reason why you couldn't jigger a capo bar.  
Everything else is jiggerable to some degree or another. There are serious  geometries 
and bearing tensions to deal with, as well as just the structural  materials 
you will use and how you will clamp them in place. 
 
But why? Are there problems with the existing agraffes?
 
Personally, me, I like agraffes to the top. And would not redesign for a  
capo bar. It was Erard's solution to the economics of agraffes, and not a design  
for the better necessarily.
 
Cheers,
 
Paul 
 
 
In a message dated 2/2/2009 4:54:09 P.M. Central Standard Time,  
nelsong at intune88.com writes:

Thanks Paul,
I will be a bit more specific. I have a 1880's Hallet&Davis 8'9" that  will 
come into the shop soon. Much of the belly work has been completed. It  has 
agraffe's up through note #88.
I had considered the possibility of installing a capo bar to replace the  
agraffes. Either in just the top or top two sections.
I am curious if any living techs that read the forum have had experience  
with similar redesign issues.
I have looked at Bosendorfer closely and think that a similar type of bar  is 
possible.
Regards,
Gene

----- Original Message ----- 
From:  _PAULREVENKOJONES at aol.com_ (mailto:PAULREVENKOJONES at aol.com)  
To: _pianotech at ptg.org_ (mailto:pianotech at ptg.org)  
Sent: Monday, February 02, 2009 11:20  AM
Subject: Re: [pianotech] re  design


Why yes, Gene, Erard did just this in about 1811. :-)
 
Paul
 
 
In a message dated 2/2/2009 1:00:34 P.M. Central Standard Time, 
_nelsong at intune88.com_ (mailto:nelsong at intune88.com)  writes:

Hello list,
Just curious if anyone out there has had the  chance to design and install 
successfully - a capo bar/s that  would take the place of and eliminate agraffes 
in the top  section/s above the dampers?
Anyone ever consider doing this?
Thanks,
Gene
 



 
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