[pianotech] Fwd: Erwins key dip gauge

[David Ilvedson]

I was just thinking about this the other day when reading about Dale's dip thingy...I believe you have to have the stack off.   Seems to me you would set samples, lay a straight edge along the keytops and adjust to be level with samples.   You have to have a level set of keys to begin with...I've never done it except in my head   '-]

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Richard Brekne" <ricb at pianostemmer.no>
To: pianotech at ptg.org
Received: 2/28/2009 4:42:07 AM
Subject: Re: [pianotech] Fwd: Erwins key dip  gauge


>Hi Al

>This brings to mind a procedure for leveling keys I've bumped into 
>before on occasion but never tried myself... and would love to get some 
>commentary on here at pianotech.  It had to do with leveling the keys in 
>their fully depressed position. Can anyone thoroughly expound on this ?

>Cheers
>RicB

>    Ric, I couldn't agree more. Proper key height is the "key" the gain
>    entrance to proper regulating. I have seen so many regulatings
>    compromised because of
>    improper key height.

>    When I was a regulator at Steinway, they insisted on the proper
>    backrail felt & key height. That is the reason they glue the back
>    rail felt on one side only. To be able to adjust the backrail felt
>    height also. Set the proper key height for each action and all other
>    adjustment fall into place.

>    Al