This may not be sometrhing that can easily be measured, but I am quite certain that it is something that a pianist can feel, i.e. 3 separate fulcrums per keystroke, vs 1. Thump --- Ron Nossaman <RNossaman@cox.net> wrote: > > >Personally, I'm not convinced that S&S's > accelerated action really does > >anything. The shift in fulcrum would be miniscule, > hardly enough to make > >any sort of measurable difference in either the > action ratio or the key's > >moment of inertia. There would *technically* be > shifts in these values, of > >course. Technically, the mechanical advantage over > the capstan end would > >decrease as the key is depressed. > > Realistically, the effective fulcrum point is going > to shift more rocking a > flat key across a well compressed flat punching than > across a half round > dowel. Maybe the benefit is that the fulcrum point > *doesn't* move, and the > key leverage *doesn't* change as much through the > stroke. > > Ron N > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com
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