Wow! Where was this email hanging out?! As you can see, I wrote it nine days ago, and it shows up on the list just now! Just so you know such things do happen. Clyde Clyde Hollinger wrote: > Joe, > > Well, to get another handle on the statistics here, how many *original* > pinblocks have you seen that were *not* drilled all the way through? I assume > we're talking about grand pianos. If 99% of the pinblocks from the > manufacturers are drilled all the way through, then this statistic doesn't > really tell us anything. > > Now to follow a related rabbit trail a little how many *vertical* piano > pinblocks are drilled all the way through? Or, if they are, maybe I should ask, > is there ever open space behind a vertical pinblock, or is it screwed/glued to a > solid panel? I've never rebuilt a piano, so I don't get to examine the "guts" > the way some of you do, but I've run into a situation where I tried to tap some > tuning pins in a vertical a little deeper, and it definitely felt like they hit > bottom when there was still room at the coil. > > If vertical pianos in general are *not* drilled all the way through, then > following Joe's logic we should have a lot fewer failing pinblocks on verticals > than on drilled-through grands. I'm not sure that's the case. I hope to learn > something today. <G> > > BTW, here in southeast Pennsylvania we are having a prolonged rainy spell. Our > rain gauge shows only an inch so far, but we're hopeful for more today. > > Regards, > Clyde Hollinger > > Joseph Garrett wrote: > > > As I do not drill > > all the way through my pinblocks, but simply "dimple" them, like we do for > > upright hammers. This dimple is to relieve the hydrolic pressure of the Pin > > Driving fluid. As I firmly believe that a completely sealed pinblock will > > last longer, this > > is how I do it. (99% of the pinblocks I've had to replace were drilled all > > the way through.)
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