For a really loose pin, I will go with a 360 degree shim. For a half-loose, I will go with something less. But yes, you can control the increase in pin torque with the sandpaper wrap degree. Terry Farrell > > > > I've never used sandpaper to shim with, figuring that after a while, under > > the pressure the paper backing will disintegrate and then you're left with > > a hole lined with Alox or garnet particles of whatever size (80 grit? 100, > > 150?) free to move and function as a lapping compound. Gross Encounters of > > the Loose Kind. > > Confession: I've never shimmed the whole hole. I've just used narrow > strips that probably don't go more than a 1/4 of the way around the pin. > Gee, it seemed to work--for the years I was servicing those pianos, anyway. > If this is a sin, I wonder what my penance should be. :-) (BTW, that was > rhetorical.) > > Barbara Richmond, RPT > > > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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