Well, I suppose small angles produce a larger change in downbearing force relative to large angles, but with a piano, small angles are all we should ever have to deal with. So we get what we get. Comparing the error with the imaginary instance where we pull the string down at an 80 deg. angle doesn't really tell us anything. The question is: how much accuracy do you need? Does a difference of a few grams matter, or does it have to vary by a kg before there is any noticable change? Don A. Gilmore Mechanical Engineer Kansas City ----- Original Message ----- From: "Stéphane Collin" <collin.s@skynet.be> To: "Pianotech" <pianotech@ptg.org> Sent: Friday, February 20, 2004 1:51 PM Subject: Re: what is downbearing? > hi Don. > > But then, isn't relative error much more important in small angles ? > Or do I miss something again ? > > Stéphane Collin.
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