Facts and nots : was Recommend Rebuilder?

[Farrell]

Franklin recommends wood moisture content to be between six and eight percent. I've always wondered about glue joint integrity on these soundboards where the panel gets dried down to raisin MC.

IMHO, the S&S method maximizes the risk for cracks. What more could be done to encourage panel cracks?

Terry Farrell
  ----- Original Message ----- 

  Sorry, YA was meant to be Yamaha.
  Yes it works with the glue. The other way to do the soundboard is to form it in a huge machine by high pressure.
  The S&S method is supposed to minimize the risk for cracks.
  I should have said 3 - 6 %

  Farrell <mfarrel2 at tampabay.rr.com> skrev:
    Can you even get a glue joint to bond when the wood MC is 3%?

    What is YA?

    Terry Farrell
      ----- Original Message ----- 

      Usually the saw mills got the timber laying in the lakes simply because it makes it much more easy to cut the wood and to prevent it from being disformed.
      When cut into planks they were sent to the pianomakers who stored them steadily in barn-like houses for years. Violin makers would store wood for the next generation.
      Cut into pieces for soundboards at least S&S would dry it down to 3% and glue on the ribs. Back in "normal" humidity the soundboard would "crown". Much later YA showed up this as a great new invention though it had been done by European an US manufacturers for decades.
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