[pianotech] flat v-bar

[Dale Erwin]

Hi Ron
  Beautiful outcome on the bearing bars. It must tune very well.
   The finish is stunning. IS all that original or re-done?
  Any recordings of it embedded anywhere?
  What hammers were employed in this Yamaha Do-Oversed


Dale Erwin RPT-
 Mason & Hamlin/Steinway/U.S pianos
Pre-hung Ronsen hammer sets/Abel parts
Sitka Soundboards & Supplies
WWW.Erwinspiano.com
209-577-8397

 
  





-----Original Message-----
From: Overs Pianos <sec at overspianos.com.au>
To: pianotech <pianotech at ptg.org>
Sent: Mon, Mar 5, 2012 3:50 pm
Subject: Re: [pianotech] flat v-bar


Wim and all,

That counter-bearing system looks to be an ideal candidate for 
building a new single piece counter-bearing bar that sits on the 
plate, while at the same time being relocated right up to the edge of 
the cast web as close as possible to the capo bar. The 
counter-bearing lengths on this piano would be better if they were 
shorter, and this plate-web fortunately has a minimal distance 
between it and the capo - an ideal opportunity for changing to a 
shorter counter-bearing. It will really help the treble clarity, and 
since one bar has already collapsed, the opportunity is there to make 
an improvement while you're doing the repair.

Here's a link to an image of a Yamaha CFIIIs which we rebuilt 
recently. This piano originally had three separate counter-bearing 
sections per string section, as per Steinway since 1872, and just 
about everybody else on the planet these days (we're such an 
innovative lot). For the CF, we cut off the cast-in counter-bearing 
bars and built up the web with body filler in those places where it 
was a little below the nominal web height. We built a new 
counter-bearing V-bar from ground stock, hardening it and EN plating 
it after hardening. Below is a link to an image of the end result.

http://users.tpg.com.au/ronovers/cf8.jpg

The treble clarity of this piano is pleasing. We've got it for sale, 
for the owner, should anyone be interested. Doesn't sound like a 
Yamaha anymore, but it certainly sounds like something out of our 
workshop.

To see other images of the rebuilt Yamaha CF go to;
http://www.overspianos.com.au/yamahacf.rebuild.htm

Ron O.
-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
_______________________

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

 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120306/ec1d305a/attachment.htm>