Front Rail Keypin Alignment Reality Check

David Ilvedson ilvey at sbcglobal.net
Tue Jun 24 19:05:37 MDT 2008


Steve Brady's concert piano technician book had some stuff on side pressure that pianists can feel.   Important to teflon powder the bushing cloth...

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: A440A at aol.com
To: pianotech at ptg.org
Received: 6/24/2008 1:51:44 PM
Subject: Re: Front Rail Keypin Alignment Reality Check



><< I'm doing this on a keyboard with nice new key bushings. When the pin is 
>aligned with the mortise slot, there is near zero friction. But when you bent 
>the pin to move the key over, friction picks up real quickly.


>So what's going on here >>

>Greetings, 
>  It sounds to me like the too long a piece of bushing cloth is in the 
>mortise.  
>Regards,  

>Ed Foote RPT 
>http://www.uk-piano.org/edfoote/index.html
>www.uk-piano.org/edfoote/well_tempered_piano.html
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