Testing irregularly shaped tops and back

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JamesO
Kauri
Posts: 34
Joined: Wed Sep 09, 2015 12:27 pm
Location: Fresno, CA

Testing irregularly shaped tops and back

Post by JamesO » Thu Dec 10, 2015 10:42 am

I received a set of LS redwood today, but it's shaped a bit irregularly. I know this can be an issue with some back sets as well. It tapped well enough (an understatement). What do we do in these situations?

Length: 535mm
Width: 214mm
Thickness: 4mm
Weight: 212g
Long: 82 hz
Cross: 42 hz
Twisting: 44 hz
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Trevor Gore
Blackwood
Posts: 1605
Joined: Mon Jun 20, 2011 8:11 pm

Re: Testing irregularly shaped tops and back

Post by Trevor Gore » Thu Dec 10, 2015 12:55 pm

In those circumstances I do a deflection test to derive the elastic constants. Adjust the supports so that the span covers just a regular shaped portion of the board.

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