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Old 03-02-2013, 07:38 AM
Todd Rose Todd Rose is offline
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Join Date: Mar 2010
Location: Ithaca, NY
Posts: 238

The braces form a lap joint at the X, like this:

The brace that goes over top acts as a solid beam because it is "capped", or bridged, below by the soundboard. The brace on the bottom needs the cap on top in order to have the strength/stiffness of a solid beam, otherwise it would be dramatically weakened by the notch.

I don't believe a cloth patch really accomplishes this, so I've never really understood the reasoning behind the use of a cloth patch.
Todd Rose
Ithaca, New York
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