key dip, dip in.....

[David Love]

If string heights are different in all sections, why would you care about a
straight hammer line?  You certainly wouldn't care to make the hammer line
straight through the bass?

David Love


----- Original Message -----
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: "Pianotech" <pianotech@ptg.org>
Sent: October 20, 2002 2:51 PM
Subject: Re: key dip, dip in.....


Well put my friend. As a case in point I just ran into a Petrof that I will
soon
be replacing hammers for. Now this is going to be an interesting job as
there are
4 string sections on this instrument, and each has a different string to
keybed
distance, while the hammer rail is straight. Now the set of hammers that are
on
this thing are not factory installed, and appear to be Abel standard long
bore.
The difference between high and low bed to strings the unwound sections is
all of
3 mm. Regulating as is can choose a straight hammer line, or a constant key
dip,
or a constant aftertouch... but not all three at once.

I generally opt to get as even an aftertouch as possible, and give an
illusion of
a straight hammer line. Dip is taken on average from what works. Course now
that
I get to install new hammers I can make things even MORE complicated...grin.

Cheers

RicB


A440A@aol.com wrote:

>
> Greetings,
>    Agreed.  If there is to be only one keydip, then there is going to be
> either a variety of aftertouch or an even wider range of blow distances to
> entertain.  All three of these work together,(I'm leaving let-off out of
this
> comparison), and if you lock one down, the other two are going to vary in
all
> but the perfect action.

--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html


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