drop and back check

[Isaac OLEG]

Hi Andrei !

Are they 2 mm after 10:00 or 2 mm at 8:00 ?

Have you the correct measure in Russian Rubles ?

I believe that this notion may apply well for the apparently
universally employed tails shape , what Renner call the US shape, I
did not think about it really, but seem to me that the older kind of
tails like we find often in the 80's are asking for a higher hatcheck
position (but then for catching reasons)

Whadaya think of it if not too late bud ?

Iz OLEK




-----Message d'origine-----
De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la
part de antares
Envoyé : lundi 16 août 2004 23:47
À : Pianotech
Objet : drop and back check



On 16-aug-04, at 22:51, Stephen Birkett wrote:

> Antares wrote:
>> Hi Avery, there should be a 2 mm distance between the back check
and
>> the hammer tail. That is the very very best back check position.
>
> Do you mean in the **vertical** direction, between the level of the
> bottom of hammer tail lowest point to level of the top of backcheck
> surface highest point? or do you mean **direct distance from one to
> t'other?

I mean that after the motion of drop, you should be able to stick a
2mm
stick between the tail of the hammer and the top of the back check.

André oorebeek
>
> Stephen
> --
> Dr Stephen Birkett
> Associate Professor
> Department of Systems Design Engineering
> University of Waterloo
> Waterloo, Ontario
> Canada N2L 3G1
>
> E3 Room 3158
> tel: 519-888-4567 Ext. 3792
> fax: 519-746-4791
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> mailto: sbirkett[at]real.uwaterloo.ca
> http://real.uwaterloo.ca/~sbirkett
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>
>
friendly greetings
from
André Oorebeek

Amsterdam -
The Netherlands

www.concertpianoservice.nl
www.grandpiano.nl

"where music is, no harm can be"

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