Oh, okay, I get you now. It's ultimately the strength of the plate that would allow a design that has the soundboard extending up behind the pinblock. Gotcha now. Thanks. Terry Farrell ----- Original Message ----- > >> If I understand you correctly, this arrangement would allow the >> soundboard to actually go under the pinblock? > > Exactly. > > >> If so, I still don't see why backposts would prevent that anyway (in a >> traditional plated piano). I think it is the pinblock that would be in >> the way of extending the soundboard way up there. > > And what holds a pinblock in place in a typical vertical? It's sandwiched > between the plate and a filler block, to the back posts. The plate won't > hold the block in place against string tension or we wouldn't be bolting > the things back together when the original structure fails and the block > separates from the back. If the plate is strong enough, like an > Astin-Weight, the back structure isn't necessary and the soundboard can go > up behind the pinblock, also like the Astin-Weight. > http://www.astin-weight.com/Our_patent.sb > Ron N >
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