Dynamic Lost Motion in Vertical

[Farrell]

Time to change the subject title!

Richard asked in response to Del's post: "Thats interesting, can you point me to reading about your action and dynamic lost motion?"

I am familiar with the lost motion adjustment of the capstan in a vertcal action, but I suspect your dynamic lost motion is quite something else. I have not heard this term before. Can you describe this? Thanks.

Terry Farrell
  
----- Original Message ----- 
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: <pianotech@ptg.org>
Sent: Monday, March 18, 2002 5:00 PM
Subject: Re: M&H uprights/ Re: Jack Wyatt - G Scale M&H


> Delwin D Fandrich wrote:
> 
> > -Some comments, if you don't mind....
> >
> > > Stephen Airy <stephen_airy@yahoo.com> wrote:
> > > >
> > > > If I was a piano manufacturer/dealer I wouldn't
> > > > make/sell grands smaller than those with the same
> > > > length or shorter strings, or same or less soundboard
> > > > area than my uprights.
> >
> > What does soundboard area have to do with piano performance? All of our
> > redesign/remanufacturing work involves reducing the active soundboard area.
> >
> 
> I am curious... is it your position that a 9 foots only advantage is the lenght
> of the strings .... that the panel itself could just as well be.... say.... half
> the size they usally... ignoring for the moment the requirements of the bridge..
> ?
> 
> > >No, it isn't. But it feels faster because you have better control over it.
> > The Fandrich Vertical Action did/does not improve repetition speed but it
> > does remove dynamic lost motion. It is that dynamic lost motion that makes
> > the vertical action fell sloppy and slow.
> 
> Thats interesting, can you point me to reading about your action and dynamic
> lost motion ?
> 
> > Del
> 
> --
> Richard Brekne
> RPT, N.P.T.F.
> Bergen, Norway
> mailto:rbrekne@broadpark.no
> http://home.broadpark.no/~rbrekne/ricmain.html
> 
>