Pinblocks - Good & Bad

[Mike and Jane Spalding]

Phillip,

I'm involved in a multiple piano rebuilding contract for a local college, including two Yamaha grands:  a G7, and a CF.   Both about 30 years old.  Pinblock material looks like old American piano blocks - a maple-like wood, plies about 3/16 thick.  Maybe the hybrid material you refer to is a more recent develpment?

Mike Spalding RPT

----- Original Message ----- 
From: Phillip Ford <fordpiano@earthlink.net>
To: Pianotech <pianotech@ptg.org>
Sent: Wednesday, February 12, 2003 3:45 PM
Subject: Re: Pinblocks - Good & Bad


> Something in between should be 
> pretty close to ideal. So I've decided to try to split the difference between feel, forgiveness, and firmness, with a hybrid. I made up some test samples of blocks using a body of the cheap rotary cut block, with a layer of Delignit laminated on top. The idea is to get the benefit of the resilience of the rotary cut down in the block, with the support and pin migration resistance of the Delignit at the top. I tried 6mm, 9mm, and 12mm 
> Delignit laminations, as well as a control sample of just the standard block.... 
> 
> It seems like a fair split between the best of both worlds.
> 
> Ron N
> ----
> My understanding is that this is similar to what Yamaha is using.  I have to confess that I've never seen a Yamaha pinblock as I've never disassembled a Yamaha piano.  Would anyone with more Yamaha experience care to comment?
> 
> Phil F
> 
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> 
> Phillip Ford
> Piano Service & Restoration
> 1777 Yosemite Ave - 215
> San Francisco, CA  94124
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