Tips for knuckle relocation

David Ilvedson ilvey at sbcglobal.net
Tue Apr 4 17:49:46 MDT 2006


Why not pop off the old hammers and rehang them on some appropriate shanks/flanges?   If you factor in the cost of the knuckles, labor, it can't be that much more.   Not to consider the difference in workmanship (not that you'd do a poor job of moving the knuckles, but probably not as good as the factory manufacturered thingees).  I've done it many times and retain the sound of the piano with a big increase in overall performance.   Don't forget you probably need to do some repinning on the old shanks/flanges...

David Ilvedson, RPT
Pacifica, California



----- Original message ----------------------------------------
From: "Jon Page" <jonpage at comcast.net>
To: pianotech at ptg.org
Received: 4/4/2006 4:14:30 PM
Subject: Tips for knuckle relocation


>I've dodged the bullet so far but there is an upcoming job in which the
>owner wants to keep the hammers from a previous rebuild (old shanks).

>I'm speculating that moving the knuckle from 15.5 to either 16 or 17 mm
>will accomplish desired touch weigh results.

>Are there plans for a jig or a floating-loaner jig for such a task?

>I haven't  even determined if I have a saw blade of the appropriate width.
>Feedback on what I'm in for is appreciated.
>-- 

>Regards,

>Jon Page


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