Regulating Key-Dip

[Joe And Penny Goss]

Hi Try this,
Check the checking distance prior to doing anything. If the checking is the
same for both sharps and white.
regulate white as others have suggested, and then use naturals to guide you
in adding or subtracting punchings for the sharps, so that they give the
same checking.

Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "William R. Monroe" <pianotech at a440piano.net>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Sunday, April 08, 2007 8:22 PM
Subject: Re: Regulating Key-Dip


> Hi Mark,
>
> I'd recommend shimming the hammer rest rail first to get the blow distance
> appropriate.  Then you can regulate the piano with a reasonable dip.
>
> As far as setting sharps, I usually rough in the sharp dip with a gauge,
> then fine tune by feel.  That is to say that I want to have the same
sensory
> perception when depressing a sharp as when depressing a natural.  So,
using
> both forefingers, slowly depress a natural through its full range of
motion.
> Slow, like slow enough to not make the hammer strike the string, but not
> really any slower than that.  Then do the same with the adjacent sharp,
then
> the next natural.  What you are doing here is comparing the feel of the
> naturals (which you have already accurately set) with the sharp.  Then
> adjust as necessary until it's right.
>
> Best,
> William R. Monroe
>
>
> >I have an old Hackley upright in which the hammers have probably
> > been shaped a couple of times. I have had no problems with the
> > regulation on the instrument.
> > However,  I think that I read someplace that the key-dip on this could
> > be adjusted as low as 1/2".
> > My question is if I do adjust the white keys to a 1/2" key dip, how
> > would I measure the black keys so that they also have the same
> > amount of dip?
> > Also, what are the deciding factors of exactly how deep to set this
> > key-dip?
> >
> > Thank you
> >
> > Mark D.
> > Montbriand
>
>