Hammer Strike Line-Grand

[Isaac OLEG]

Plucking with a finger shows you the strike point also (more or less).

If the hammers are OK (thin and reactive enough) may be they are
restrained by the backchecks when playing, may be they are knocking on
the iron of the plate (are there agrafes in the treble ?)
May be the capo is too worn and takes too much energy.

If the glide bolts are too much screwed and the back of the keybed
floats the tails can rub on the backchecks, and you loose much energy
by lack of correct foundation.

But a thump can be caused by regulation problem (letoff not occurring
at normal speed)

etc etc.

If you agree I can come by and have a look at it !

Best regards

Isaac OLEG




-----Message d'origine-----
De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la
part de Gordon Holley
Envoyé : vendredi 13 août 2004 14:59
À : Pianotech
Objet : Re: Hammer Strike Line-Grand


Hi Dean.
Yes, when plucking with a fingernail, such as chip tuning, the strings
from
E7 up to C8 ring as loudly and clearly as the strings below E7.
Your question "Is there a scale break at Eb7/E7?.  I understand you
are
asking if the wire diameter changes at Eb7/E7.
I don't know, because I don't have the type of mic that I can get
between
the wires and take a reading.  It very well may, just don't know.
Regarding glue and crack related problems in the bridge and
soundboard.  I
have looked very carefully and do not see any indication
oc a bad joint or seam.
I don thank you for your interest and input on my plight.
Regards, Gordon Holley

----- Original Message -----
From: "Dean May" <deanmay@pianorebuilders.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, August 12, 2004 4:57 PM
Subject: RE: Hammer Strike Line-Grand


> Hi Gordon,
>
> When plucking with fingernail, do they ring/sustain as loudly and
clearly
as
> notes below E7? Is there a scale break at Eb7/E7?
>
> When I've run across similar problems, invariably it is something
loose
> related to the bridge- a loose bridge cap or bad bridge/soundboard
joint.
> Put some CA glue (thin) in a hypo oiler and run some along the cap
seam
and
> along the soundboard seam. If you see glue sucking into either
place, you
> know it is a bad joint. I would also flip the piano on the side and
run CA
> glue into the rim joint all around. The thin CA glue will actually
go
> vertically upwards into a joint for the areas near the treble side
of the
> rim. Just make sure the hypo is full and squirt it up vertically in
those
> areas. Do the ribs while you are at it. Every place it sucks in
shows a
bad
> joint.
>
> Dean
> Dean May             cell 812.239.3359
> PianoRebuilders.com   812.235.5272
> Terre Haute IN  47802
>
> -----Original Message-----
> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
Behalf
> Of Gordon Holley
> Sent: Thursday, August 12, 2004 4:14 PM
> To: davidlovepianos@earthlink.net; Pianotech
> Subject: Re: Hammer Strike Line-Grand
>
> Hello David.  Thanks for bringing this point up.  I didn't think to
make a
> note of this in my previous
> discussion with Ric.  I have plucked the strings with my finger nail
and I
> did get a clear sound.  I didn't pick all 10
> notes, but I'll do that tonight.  I'll get back and respond on this
point
> tomorrow.
> thanks again David.
> Regards, Gordon
>
>
>
> _______________________________________________
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