Key Clamping Jig

[David Ilvedson]

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Nice clamping jig...certainly easier to use than my Spurlock key=
 clamps...but I've already got them...

David Ilvedson







Original message
From: David Love 
To: 'Pianotech' 
Received: Wed, 13 Apr 2005 20:51:07 -0700
Subject: Key Clamping Jig


      
Attached are the photos.  These are simple trap springs screwed=
 into a
long piece of pin block scrap which has been screwed down to a=
 slab of
something I had laying around.  The pin block material is shimmed=
 up off
the deck to allow the lip to slip under.  Once the key is placed=
 under
the clamp I depress the spring slightly while holding the key. =
 The
release of tension on the spring pulls the key slightly toward=
 the pin
block stop as otherwise there is tendency for the key to drift=
 back
while the keytop remains stationary and a gap can form at the=
 front.  As
you can see, you can also use this for clamping a set of sharps. =
 If you
install tops without fronts, you could make the jig with a stop=
 for the
keytop recessed whatever distance you want underneath and behind=
 the
line of the larger stop for the key front.  That way you can=
 index the
same amount of overhang of the key top for each key.  Since I=
 don't
install keytops without fronts I didn't bother to do that.  

David Love
davidlovepianos@comcast.net 


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