Heavy action great solving !

[Isaac OLEG]

Great solving for UW Newton, remind me of my class ages.

Thanks

Isaac OLEG


> -----Message d'origine-----
> De : pianotech-bounces@ptg.org 
> [mailto:pianotech-bounces@ptg.org]De la
> part de Newton Hunt
> Envoye : lundi 30 septembre 2002 16:45
> A : Pianotech
> Objet : Re: Heavy action
> 
> 
> Hi Dave, 
> 
> 40 grams down is far too low.  C4 at 60/45 has a balance 
> weight of 52
> grams (far far too high), friction is 7 grams (a hair lower than I
> like).
> 
> So, 40 grams down with 7 grams friction has a balance 
> weight of 33 g.
> and 26 g. up weight.  Too low!
> 
> (40 - X)/2 =7   40-X=14
> -X=14-40 so X=26
> 
> With 7 g. friction, a target balance weight of 40 g. the 
> down weight and
> up weight should be 47/33.  So, a small weight out front or 
> a larger one
> toward the balance point should bring you up to standard 
> without getting
> over inertia-ed. :)
> 
> 		Newton
> 
> "David M. Porritt" wrote:
> > 
> > I was talking about 40 - 44 grams downweight.
> > 
> > dave
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