Do you realize that you guys are always discussing who is right and who is wrong? OOR On Oct 6, 2008, at 11:23 PM, David Love wrote: > That should read "...in the opposite direction directly > proportional..." so > we don't have any further misunderstanding. > > David Love > davidlovepianos at comcast.net > www.davidlovepianos.com > > -----Original Message----- > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] > On Behalf > Of David Love > Sent: Monday, October 06, 2008 2:12 PM > To: 'Pianotech List' > Subject: RE: What's all this I hear about Inertia ? > > I see you're still having trouble with the math. If you change the > FW then > the BW changes in the opposite directly so any change in the FW will > not > change R. > > David Love > davidlovepianos at comcast.net > www.davidlovepianos.com > > -----Original Message----- > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] > On Behalf > Of Richard Brekne > Sent: Monday, October 06, 2008 2:58 PM > To: pianotech at ptg.org > Subject: What's all this I hear about Inertia ? > > Greetings: > > Then we're defining ratio differently (not to speak for Fenton). > Changing the front weight has nothing to do with the action ratio. > I believe what Fenton referred to was replacing lead with help from > the assist spring. Then you do have the same hammers, ratio, BW, > different leading, because the assist spring takes the place of > some > of the lead. The action would therefore have lower inertia. > > David Love > > I see you haven't quite understood the balance equation correctly > David. > Changing the Front Weight most certainly and undeniably does change > the > (SW) ratio. A most casual of glances at Stanwoods formula reveals > this. > Again...this is part of why you will find any direct translation to > another protocoll... the distance one for example... quite difficult > at > best. > > Review Stanwoods formula. R = (BW + FW - WW) / SW > > Clearly a change in FW changes the value of the entire left side of > the > formula, and hence the equivalent R on the right side. > > Cheers > RicB > > > > > friendly greetings from André Oorebeek Antoni van Leeuwenhoekweg 15 1401 VW, Bussum the Netherlands tel : +31 35 6975840 gsm : +31 652 388008 "where Music is, no harm can be" -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20081006/b2e2281a/attachment.html
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