key dip

[Isaac OLEG]

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Sorry that was gone on another thread

Hello and Happy Birthday, Richard !

I believe the 10mm rule (or conclusion) mean that this dip is the most
comfortable as a generality.

May be some very large handed pianists could (if they where aware of) ask
for a keyboard regulation at a different dip/level, but I like the logic to
work with a comfortable dip, and regulate the remaining of the action to
concur.

I've never seen a pianist checking the dip, always they check the aftertouch
to see if it please them, most educated then know they can ask for a little
aftertouch change in a little time.

I regulated a S&S b last week, that had Abel heads on it. The heads where
too tall, and the tails too long.

Working with 10 mm was not an applicable solution (while I tried at first),
as I obtained too much aftertouch, with the long tails the touch became very
bad.

But I hade it working at 9.85mm , shanks almost on the cushions, and that
was the less bad I could obtain.

If regulated at 9.5 (factory spec) , not enough sound, and an action that
lack responsiveness.

Old Schimmel grand's where intended for 10.25 or 10.5, Kaway are said for
10.25, but if you change the soft punching for better (more firm) ones, you
can regulate to 10 mm dip, and you recognize immediately that you have the
correct touch on these strange actions.

Anyway again I discover how much time is lost in regulation when incorrect
parts have been fitted.

Regards.

Have a nice Sunday

Isaac OLEG

  -----Message d'origine-----
  De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la
part de Richard Brekne
  Envoyé : jeudi 17 octobre 2002 14:04
  À : Pianotech
  Objet : Re: key dip


  antares wrote:
    I personally have come to the conclusion that there is actually just one
key
    dip and that key dip is 10 mm sharp, and no more than 10 mm.
    All piano makers in the world have a key dip of 10 mm except the earlier
    Pleyels, Blüthners and modern Steinways.... although, when I had my
lessons
    at Steinway the head technician at the regulation department told me
that he
    thought a key dip of less than 10 mm on any Steinway was bloody baloney.

  First off... I have 6 manuals in front of me. 4 of them official
manufacturers specifications. I quote from these for your edification.

  Schimmel Grands

    Over 2 meters --- key dip 10.4 -10.8
    Under 2 meters -- key dip 10.2 - 10.6
    Blow ranges from 44 to 46 in the specifications, and 44 to 48 in the
grand requlating guide.

  Schimmel Uprights

    Key dip 10.2 +/- 0.2, and 9.9 +/- 0.2 for pre 1985 models. blow 43 / 46

  Yamaha grands

    Key dip 10 mm +/- 0.2. Laroy Edwards gives 10 mm and says temper this
with common sense and a knowledge of action function.

  Kawaii Grands

    Key dip for KG-8 is 11 mm, all other models is 10.5
    blow is 46 -48
  I could go on and document factory specifications that range from 9.5 to
11 mm quite easily. Again I must insist that there is no basis for demanding
that the 10 mm key dip has shown itself to be the best. Nor is it true that
all or even the extreme majority of manufacturers specify this. I will go
along with that close to 10 mm is a good norm, and it is indeed the one I
choose. But to declare it as a universal holy grail I will not.

  Interestingly enough.... David Loves high ratio / low SW configurations
push one rather in the direction of shallow key dip concerns... tho just
barely. But thats the other thread.


    In regard to making key dip : I had to train one whole week to learn
what a
    perfect key dip is.
  Hmmm... interesting concept... the perfect key dip. Could you describe
that for us in terms of regulating specifications ?

    After that, when I read about various key dips, I always feel this urge
to
    open up the magic box and type in the words I just type in.

  Heck Andre... agree or not... I respect and admire your advices and
expererience in all things piano !


    Most elevated and friendly greetings.....


  Likewise Andre :)
  --
  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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