[CAUT] Andres punching tested

[Fred Sturm]

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Is Andre=B9s punching firmer than Pianotek=B9s =B3pear green=B2? (Which is quite
similar to Yamaha, etc).
Regards,
Fred Sturm
University of New Mexico

On 1/12/05 9:58 PM, "Erwinspiano@aol.com" <Erwinspiano@aol.com> wrote:

>  List
>   While putting the final hours on a newly bellied D I did an experiment.
>    I had installed the usual Thick green punching a while back  prior to
> receiving the New Oorebeck front rail punching's. So I listened to the so=
und
> of F-4 carefully, checked the dip , then changed to the new ones, checked=
 the
> dip , played the note & the sound suddenly came together with more power =
and
> clarity than the first punching. The solidity under my finger was firm an=
d
> sure.
>     Thinking it to be an anomally I changed back to the green ones. The S=
ound
> diminsihed & lacked focus. Well ,I did this a bout three times on the sam=
e
> note with the same result. I then checked a bass note f-1 with the same
> effect.=20
>    I'd say the new puncing  has a similar beneficial yet cumulative effec=
t
> much like to mating & hammers to & leveling strings
>   I placed the green punching between two pieces of thin maple & put a
> calipers on each side. The compression with modest force would change eas=
ily
> as much as .030. The white new punching only .010.
>    Considering all this, since the key is where the power is generated  i=
t
> needs to have a precise stopping moment. If not after touch can change to=
 a
> depth of .420 even with an initial dip setting of .390 .(which is my pref=
erred
> dip in Steinways whenever possible.)
>   Think of the distance in excessive jack travel especially on parts with=
 a
> narrow window for jack movement & also it's effect on slowing repitition
> performance. With the white punchings a far more dependable dip /touch ca=
n be
> assured.
>   Think of the improvement in SOUND Baby!!!!!!!!
>   I  noticed no change in noise even though this is a pressed felt & not
> woven.
>  I immediately changed the entire set & tomorrow or Friday I'll have a ch=
ance
> to hear & feel  the whole piano.
>   Regards
>   Dale Erwin
>=20
>=20


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