Story and Clark/QRS console bubbling hammers

Piannaman@aol.com Piannaman@aol.com
Sat, 6 Dec 2003 11:53:55 EST


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Hi Paul,

Thanks for the advice.  There is plenty of aftertouch.  That was one of the=20
first things I checked and corrected, because initially, there was none. =20
Everything works fine--until the damper pedal is engaged.

I will put some thicker punchings on a few balance rail samples and see if i=
t=20
can be regulated properly before I raise the whole rail.  Could it be a=20
leverage issue?? =20


Dave Stahl



In a message dated 12/6/03 8:29:10 AM Pacific Standard Time,=20
pmc033@earthlink.net writes:


>             You need to determine if there=E2=80=99s enough aftertouch.  A=
s you go=20
> through let-off and the key bottoms out, check to see if there is a little=
=20
> forward motion of the hammer, and that the jack it out from under the hamm=
er=20
> butt.  If not, your key dip is still too shallow.  Putting a thinner punch=
ing=20
> may get you closer to the correct dip, but you need to be more precise wit=
h=20
> this adjustment.  Setting the letoff point will help some, but you must be=
 sure=20
> that you have enough dip to make it work.  I recently worked on a Mason=20
> Hamlin large upright which had a similar problem with bobbling hammers.  A=
ctually=20
> it wasn=E2=80=99t so much bobbling, but the piano had a kind of =E2=80=9Cl=
oose=E2=80=9D feel.  By=20
> raising the balance rail, the dip increased and the checking worked much=20
> better.  Hope this helps.
>             Paul McCloud
>             San Diego
>=20



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