A Cheeky Question ...

[David Love]

If you anticipate pulling the action in and out a lot, one thing you can do
is make yourself a couple of positioning blocks: blocks of wood with a screw
that you can move in or out.  You put one on the bass side and one on the
treble side set against the back of the action cavity and adjust the depth
of the screw such that when the action is pushed in against them it is in
position.  A quick measurement of the width of the key frame and the
distance from the front of the frame to the back of the action cavity will
get you in the ballpark quickly.  Then fine tune by drawing a line at the
front of the key frame first followed by making small adjustments with the
screws.  That way you can pull the action and just push it back in until it
snugs against the blocks.  Easy and reliable.  (Don't forget to take them
out when you're done.) 

 

I've found it's more of an issue for voicing than for regulation with the
exception of the sostenuto.  Of course, you should always lubricate the key
bed and bottom of the action frame as well.  

 

David Love
davidlovepianos at comcast.net
www.davidlovepianos.com 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Alan Barnard
Sent: Monday, February 25, 2008 8:12 PM
To: pianotech at ptg.org
Subject: A Cheeky Question ...

 

In regulating and voicing the grand, I have always inserted the cheek blocks
every time I slide the action into place because that's what I've always
read, seen, and heard to do.

Working today on the heaviest darned action I've ever hefted (Hyundai
6-footer)-if the action isn't in the exact spot required, it's very hard to
tap either side into place or move it with cheek block, so I marked the
front and side of the bed to line up the action each time.

Got to wondering, would spotting the action on preset marks be enough for
many regulation and voicing tasks, without installing the cheek blocks? Or
does that invite trouble?

Alan Barnard
Salem, MO

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