And I agree with you. I just wanted to clarify that whether measuring by distance or weight, assuming the measurement is done accurately, the results should be the same. David Love ----- Original Message ----- From: "David C. Stanwood" <Stanwood@tiac.net> To: <pianotech@ptg.org> Sent: November 03, 2002 4:10 PM Subject: Re: action ratios >David S wrote: referring to measurements of action ratio > >Stéphane shows an analysis with mixed types, some touchweight >and some geometry. One or the other please! >I'm not sure why it should matter if measurements are being taken >accurately. To my understanding of the working of levers is that the >relationship between distance and force leverages is not idiosyncratic but a >fundamental principal of mechanics. >David Love If your measuring an action with a 5.5 ratio using 5mm dip and and your off by 1.0 mm measuring the rise of the hammer, the ratio will be off by 0.2. It's a fundamental principal of measurement to make errors. I'm just saying it needs to be done accurately.... Stanwood _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives
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