Ron Nossaman wrote: > >Ok, so putting the magnet(s) behind the capstan makes the action heavier as > >the key moves, in it's stroke. I can understand that.<G> Why not put the > >magnet "IN" the wippen heel? It would take more work to install, but > >wouldn't change the basic "ratio", (?). In this way you could define how > >much the magnet(s) effect the actual "touch". > >Best Regards, > >Joe Garrett, RPT, (Oregon) > > If it doesn't change the ratio, it won't lessen touch weight. That's why. > Putting the magnet in the heel would be no different than putting in a > non-magnetic weight. I concure. > The magnetic lift and mechanical advantage from the > second class lever of the wippen is the only thing that makes this work. So > far, it looks like I am the only one who has actually taken a little time > to try and work out the leverages involved. You no doubt are the one to have looked closest in this direction. But I am still not quite convinced of this 2nd class lever perspective, tho I am hopefully going to get some time to look closer at your points tonite and tommorrow. But for now I still like the compressible second capstan and heel perspective. Perhaps it ends up that either way of looking at it is sufficient to describe it... I'm not sure. > Forget action terminology for a > moment (pun intended), and go back to basic mechanics. btw .. I'll have those measurements for you in a bit Cheers RicB -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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