engineered wood rail (was: What would Steinway do)

[Andrew and Rebeca Anderson]

Good point.  Nothing against lamination in and of itself.

My biggest problem was poor milling of the mortice holes.  Not good 
when the Center Rail Pin is binding in the hole and you go in to with 
the hand-tool to drill it out and it turns into a spider's nest of 
fibers...  Had to break out the soldering iron.  There was some key 
twisting but the climate was awful.

Andrew


At 11:27 AM 3/8/2007, you wrote:
>At first glance, what might appear to be a 3-ply key panel, is 
>actually a 7-ply panel.  There may be 3-ply panels out there, but 
>the ones with which  I am familiar are 7-ply, consisting of three 
>thick plies, with veneer laminations between the thicker plies and 
>on the outer faces.  The veneer plies are hardwood, and the thicker 
>plies are softwood, as would typically be used for a solid wood key 
>panel.  The internal veneer plies are cross-grain, and the surface 
>plies are in line with the thicker plies, roughly in the direction 
>of the individual keystick lengths.  These panels make very stable 
>keyboards, even they are in Chinese pianers.  These key panels are 
>often also reinforced with hardwood boots as needed for capstans 
>and/or balance pin holes.
>
>Regarding poorly seasoned key panels, I spent several hours, last 
>week, getting warped keys to work on a solid wood keyboard in a 
>limited edition, brand-new grand piano of one of the most well-known 
>brands out there.  This would not have happened with a laminated 
>panel, but they are to proud of their traditional design to try something new.
>
>Frank Emerson
><mailto:pianoguru at earthlink.net>pianoguru at earthlink.net
>
>
>----- Original Message -----
>From: <mailto:anrebe at sbcglobal.net>Andrew and Rebeca Anderson
>To: <mailto:cy at shusterpiano.com>Cy 
>Shuster;<mailto:pianotech at ptg.org>Pianotech List
>Sent: 3/8/2007 8:18:31 AM
>Subject: Re: engineered wood rail (was: What would Steinway do)
>
>Most laminated keysticks I've seen have been of poorly seasoned soft 
>fibrous wood and only three laminations (Chinese pianers).
>
>Andrew
>
>At 04:38 AM 3/8/2007, you wrote:
>>Any opinions about laminated keysticks?  Same benefits against 
>>warpage; are they too stiff for player comfort?
>>
>>--Cy--
>>

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