[pianotech] Key wood prep....was....Applying PVC-E

[Greg Newell]

David,

                I can envision what you’re talking about. Better still might
be two opposing heavy blocks of something that were spring loaded and
sandwiched the key from each side with the springs providing the clamping
pressure. It would be really cool if you could retract both sides together
with some sort of foot switch. 

                Depending on where the key is indexed (in the jig were
talking about its indexed underneath the part where the players hand touches
it or nearly so) it shouldn’t matter much whether the key is warped or not.
The issue I’m having is where one side of the key is sloped down. If you
look at the key from the end the end looks like a trapezoid shape. If it’s
indexed where I mentioned that shouldn’t be possible. Somehow the key seems
to be moving. I like the idea about replacing the rubber button on the end
of the clamp.  If I ever get around to it I’ll have to let you know what I
come up with.

 

All the best,

                

 

Greg Newell

Greg's Piano Forté

www.gregspianoforte.com

216-226-3791 (office)

216-470-8634 (mobile)

 <http://www.wealthyaffiliate.com?a_aid=NNaYfMKd>
http://www.wealthyaffiliate.com?a_aid=NNaYfMKd

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of David Love
Sent: Saturday, January 02, 2010 7:07 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Key wood prep....was....Applying PVC-E

 

I hear that about getting back lousy work.  That’s why I do it as well.  I
do take a lot of care to be sure that the key is held down square.  The best
clamping solution would be to have another piece of angle or flat iron on
the clamp side that somehow slides up against that side of the key so that
the clamp actually pushes against another piece of iron whose upward
movement is restricted (if you follow that).  Then you would have two pieces
of flat iron parallel to each other and perpendicular to the key bed hold
the key in place with the pressure from the clamp not directly on the key
itself.   I’m always happiest when the piano needs a new set of keys.  The
other thing to consider is that keys do warp sometimes and it may not be
your system that is at fault.  

 

David Love

www.davidlovepianos.com

 

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