Hi, One might not need two capstans to accomplish what you are trying to do. Just a redesigned capstan head, and wippen roller like a sax C to C# roller on the keys. Boy just think of all the oppertunities for income that would create with stickt rollers. Goose Juice to the rescue. Joe Goss imatunr@srvinet.com www.mothergoosetools.com ----- Original Message ----- From: "Richard Brekne" <Richard.Brekne@grieg.uib.no> To: "Pianotech" <pianotech@ptg.org> Sent: Friday, January 17, 2003 12:57 AM Subject: Re: Two Capstans again > Been thinking about this, and I suppose you are right Bill. There should > be enough sliding motion to cause at least as much wear on the cushion > as now. > > Still, if you had nice rounded edges nicely polished perhaps that wear > might not be so extreme as to offset the << benifit >> gotten in > relation to the ratio. > > Course this assumes that it is a benifit to in essence have a dynamic > key ratio. How would that feel, I wonder, under actual play ? At the > beginning of the key stroke you would have say a 5.7 ratio... and > gradually through the keystroke this would change to perhaps 6.0, > Perhaps not so large a change... but just so. > > Might be interesting to see in anycase. But somebody has had to have > tried this out at somepoint in the past ... eh ?? or what ? > > RicB > > Bill Ballard wrote: > > > At 3:52 PM -0800 1/16/03, David Ilvedson wrote: > > >Wouldn't you need to change the shape of the sticker, wippen butt, > > >etc. to fit the > > >concave shape. For some reason it seems it would bind...? > > > > I'm more worried by the fact that the bearing surface on the concave > > cap is a thin circular rim, as opposed to the round dome of the > > convex design. While it would alternate nicely between the leading > > and trailing edges of that rim, it would also seem to scrape away at > > the rep cushion in the process. > > > > Bill Ballard RPT > > NH Chapter, P.T.G. > > -- > 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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