Noah, I agree with everything Chuck has said. In addition: Most likely the new pinblock will need to be fitted to the plate flange. Do this exactly as you would for a grand piano; i.e. jigsaw as close as you can to original pinblock shape, refine with chalk transfer from plate flange, finish with epoxy (West with colloidal silica filler, not the stringy yellow goop in your photos).. I can't tell from your photos whether your original pinblock is one piece, or split at the tenor block (see attached photos). Do not split your replacement. The pinblock will be the main structural member across the top of the piano, don't do anything to weaken it. Further, I'd recommend that you choose your pinblock material for structural rigidity rather than your preferred tuning pin feel. Delignit or Falconwood. good luck Mike On 2/2/2013 8:53 PM, Chuck Behm wrote: > Hey, Noah - Sounds like an interesting project you're embarking on! > I'm assuming this piano has a lot of sentimental value to you or > someone near and dear (hence it goes by a name), because you'll be > spending a lot of time on this. Well, if nothing else, it'll be a > learning experience. > > The article you're referring to deals with quite a bit different > situation - a solid pinblock which simply needed the pin fields > routered out for the insertion of pinblock panels. By the looks of > things, you're beyond that repair scenario, and will be looking at a > total replacement of the pinblock, complicated by the excessive goop > which will need to be completely removed from the back bracing before > replacement may commence. > > Before tackling the removal of the old pinblock, however, the first > order of business is establishing the correct placement of the pins > before their positioning is lost. You'll need to make a paper pattern, > using contractor's or butcher paper (not several sheets of computer > paper taped together!). Remove the old pins (noting the angle at which > they're drilled) and cover the entire pinblock with your paper. Crease > the paper along the sides and clearly mark the position with tack > marks for later positioning. Use a pencil to make a rubbing of the > tuning pin holes. For photos of the technique, have a look at the > March, 2011 segment of the "Small Shop" series > <http://www.pianopromoproductions.com/resources/34.%20Mar.%2C%202011%20Small%20Shop.pdf>. > > The juncture between the bottom of the pinblock and the rest of the > piano hopefully is not complicated. I haven't taken one of these > particular pianos apart so I'm not sure what you'll be looking at. > Anyone else have a clue? > > Best of luck. Chuck > > . -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130203/361fb72e/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: PC180009.JPG Type: image/jpeg Size: 117008 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130203/361fb72e/attachment-0005.jpeg> -------------- next part -------------- A non-text attachment was scrubbed... Name: PC180010.JPG Type: image/jpeg Size: 113346 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130203/361fb72e/attachment-0006.jpeg> -------------- next part -------------- A non-text attachment was scrubbed... Name: PC190013.JPG Type: image/jpeg Size: 115385 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130203/361fb72e/attachment-0007.jpeg> -------------- next part -------------- A non-text attachment was scrubbed... Name: PC190014.JPG Type: image/jpeg Size: 115787 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130203/361fb72e/attachment-0008.jpeg> -------------- next part -------------- A non-text attachment was scrubbed... Name: PC190015.JPG Type: image/jpeg Size: 115699 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130203/361fb72e/attachment-0009.jpeg>
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