[pianotech] S&S K(52) Restoration

[Gene Nelson]

Great pics Terry, thank you.

Getting your cauls up off the floor is a nice feature.

I am having trouble seeing just how the bass bridge is supported with ribs??

Did all of the ribs get notched into the rim/Z-bar assemblies?

The M frame highlights the Z-bar frame nicely - great way to visualize the
concept.

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Terry Farrell
Sent: Friday, May 18, 2012 2:53 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] S&S K(52) Restoration

 

I have more pictures of this piano being built, but they are buried - if you
have more questions, ask away and I'll try to find what I can.

 

Below is picture of the panel being ribbed. At the right edge is the bottom
of the soundboard. You can see the bottom-most rib is parallel with the
bottom board of the piano and after installation, a cut was made on the
lower side of that rib to free up the bass.

 



 

 

Below is a pic of the M&H rim/back after modification. Sorry for the
confusion, but the laminated structure (striped) that is clamped to the M&H
frame is a faux inner rim of a Baldwin M grand. I did that in an effort to
show how the Z-Bar shapes the upright soundboard active area to just about
exactly the dimensions of a comparable size grand piano after modification
with a fish. As you can see, a 52" upright is a slightly larger piano
(soundboard-wise) than a 5'4" grand.

 



 

 

Terry Farrell

 

 

On May 18, 2012, at 2:20 AM, Gene Nelson wrote:





Added a few mono chords to the bass bridge?

Can't figure how the two bridge shaped structures above the bass bridge
function?

Is it a leg that defines the greater Z structure? 

Sent from my iPhone


On May 17, 2012, at 9:07 PM, "Delwin D Fandrich" <del at fandrichpiano.com>
wrote:

Yes, it is. That is part of the Z-Bar and "floating bass" design. 

 

ddf

 

Delwin D Fandrich

Piano Design & Fabrication

6939 Foothill Court SW, Olympia, Washington 98512 USA

Phone  360.515.0119 - Cell  360.388.6525

del at fandrichpiano.com  <mailto:del at fandrichpiano.com> - ddfandrich at gmail.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Gene Nelson
Sent: Thursday, May 17, 2012 6:58 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] S&S K(52) Restoration

 

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