Dan Levitan gave a technical presentation for the Boston Chapter during a meeting at NBSS last spring. While playing around with these notions he came up with a U-shaped lever! More specifically an upside down U, with right angles (so more like |_____|, only upside down). So as long as one doesn't introduce a twist one can tune very smoothly with the handle in front of the stretcher.I didn't try it out, but it was interesting. Patrick Draine On Sun, Aug 17, 2008 ? wrote: > > > << Please explain to this beginner why tuning levers are not configured to > > pull at a right angle to the pin. It seems to me that the angled design > > just creates a lot of unnecessary pin gymnastics. All that's needed for > > a right angle twist is a longer socket on the handle. >> > > A longer socket makes the pin bend more, for a given vector of effort. > Think > what would happen if you had a 12 inch socket. It would transfer more of > the > twisting motion into bending motion at the pin. > The angled head is a compromise that lets us avoid obstructions, (like > plate struts), while keeping the energy of our efforts as closely directed > rotationally as possible. > Regards, > > > > Ed Foote RPT -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080817/8d42524e/attachment.html
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