Re: Mandolin neck repair: the final solution?
Originally Posted by
Ivan Kelsall
"Regardless of what method you use to bend the wood for the backstrap,there will always be residual stress in the strap after bending...."
I would guess that there is some truth to that for sure.
But I'm not sure how much it amounts to in the "real world of luthiery"?
I suppose it depends in part on how properly/effectively/efficiently the bends in the piece were made in the first place?
Thinking more about it if you bend a set of maple sides for a F-style mandolin and then decide not to use them and never glue them to the end and tail blocks do they ever become straight again? I doubt it.
They will probably relax to some "equilibrium state" with less bend then when originally conformed but never again become straight.
At that situation there is still stress but it is "internal" that is the stresses are within the piece of wood per se and would not be imparted outside of that?
So when you glue them in place it is only that "residual stress" -- i.e., the difference between the conformation immediately after the bending process is completed and the final shape of the cooled dry wood that has to be contained or contended with?
This would be much less (or at least less) than the total stress that was generated in the bending process?
Bernie
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Due to current budgetary restrictions the light at the end of the tunnel has been turned off -- sorry about the inconvenience.
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