>The soundboard was designed to leave it approximately 5/8" short of the >outer rim all along the perimeter. The rationale, if I remember >correctly, was to give the sound board room for expansion or contraction >depending on the season. There is no 'channel' per se; just a gap between >the soundboard and the outer rim. 5/8"?!!!!!!!!!!! That's a pretty substantial allowance for an approximately 8 mm panel that 's glued to the inner rim!! I'd sure like to hear where this much expansion is going to come from. > The ribs are supposed to have a >little clearance from the top of the inner rim. They are designed to >'float' to the edge of the soundboard without contact with the rim. Why? Ron N
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