---------------------- multipart/alternative attachment Terry Farrell writes: > >a new Bolduc quarter-sawn (more-or-less) hard-maple pinblock. I am using > Ron Nossaman's two-bit > >drilling method. I started out with a final drill size of 0.25-inch > >(actually the drill bit that Pianotek sells specifically for the Bolduc > >blocks - it is actually about 0.247-inch). I was consistently getting > >an initial torque exceeding 200 in.-lbs. . I am getting an initial torque > (right after pounding the > >pin to stringing height) of about 180 in.-lbs. > Ed F sez: > Yikes, this is WAY too tight for finesse. I use the Bolduc blocks with > 1/0 > pins and a C drill. I drill them in one pass. We have used many Bolduc blocks, and like them. We used several sets of 1/0 pins, and I decided that I don't like the feel in non-bushed pianos, so we went back to 2/0. I drill .250 in one pass, and come out about 120-130 inch pounds right after. I'm surprised Terry's are coming out that tight. Bob Davis ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/17/60/4f/a2/attachment.htm ---------------------- multipart/alternative attachment--
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