I don't see how high upweights will make the action feel lighter. The case you describe has BW at 50. Friction of 8-10 grams is not likely in the lower end of the piano unless the pinning is really loose. So that would put downweights in the 60 - 65 range. Too much for my liking. David Love davidlovepianos@earthlink.net > [Original Message] > From: Richard Brekne <Richard.Brekne@grieg.uib.no> > To: PTG <pianotech@ptg.org> > Date: 4/6/2003 1:18:36 PM > Subject: Upweight Maximums > > > Hi guys, > > A recent email presented to me a thought I have not really considered > before and I thought I would throw it out to you all to hear your > thoughts. > > The "heaviness" of the action and the explanations for this is something > that is continually up for discussion, and I was newly presented with > the idea that one should try and configure actions so that static Up > Weights end up somewhere in the low 40 gram weight range, with friction > weights around 8 to 10. In addition, and action should not have any > assistance from springs, magnets or any other such contrivance to play > into the counter balance question. > > This means, as far as I can tell, that this technician is looking for > rather heavy downweights, which is indeed her stated preference. But her > reasoning for this is interesting. It is her position that this > configuration will feel lighter then any configuration possible that has > Up Weights significantly below the levels she specifies. > > So.... I'd love to hear some thoughts on the matter. > > Cheers > > RicB > > -- > Richard Brekne > RPT, N.P.T.F. > UiB, Bergen, Norway > mailto:rbrekne@broadpark.no > http://home.broadpark.no/~rbrekne/ricmain.html > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
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