Don, Quoting Don <pianotuna@accesscomm.ca>: > Hi Avery, > > I think Chris Robinson did some analysis work with a "real time > analyser" > on flange pinning. Yes. So far, Chris' work is the most reliable. Cheers! Horace > > > At 08:44 PM 24/08/2004 -0500, you wrote: > >Wasn't it Rick Baldassin who said that more power could be had with a > >pinning in the 4-5 g. range? > > > >Avery > > > >> As to "power", we "Jolly" well know that there is a loss of power > and > >>tone when the hammer flange is too loose, so I suggest that power will > suffer > >>with looser pinning, (up to a point). The tighter pinning is of major > >>effect on > >>softer playing, since under a very hard blow, the felt in the bushing > is > >>distorted enough so that only one side of the bushing is really in firm > > >>contact,(on > >>a hammer flange, it is the upper part of the bushing that is taking the > > >>load). > >> When the bushing is thus distorted, its friction from the circular > >>compression that we see in static testing is greatly reduced. > >>Regards, > >> > >>Ed Foote RPT > >>http://www.uk-piano.org/edfoote/index.html > >>www.uk-piano.org/edfoote/well_tempered_piano.html > >> > >>_______________________________________________ > >>pianotech list info: https://www.moypiano.com/resources/#archives > > > >_______________________________________________ > >pianotech list info: https://www.moypiano.com/resources/#archives > > > > > > Regards, > Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. > > mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ > > 3004 Grant Rd. > REGINA, SK > S4S 5G7 > 306-352-3620 or 1-888-29t-uner > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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