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Brak-
The comment halekai made about vacuum-bagging is because if the repair is vacuum-bagged, the fact that you're working on the underside doesn't really matter, since the vacuum bagging will hold the repair in place until the epoxy cures.
Merttan/dourouke-
Cut in from the top... it'll be a lot easier to properly repair the deck if you're not trying to work against gravity. I would bevel the cut into the un-damaged balsa, so you can scarf the new balsa in with the old balsa and make the repair as seamless as possible.
If you try doing this from the bottom, getting a good bond between the balsa and the upper laminate layer will be difficult, since gravity will then to cause the balsa to pull away from the upper laminate, and that will leave you with voids, weakening the repair considerably. For a cored deck to function as designed, the two laminate skins must be tightly and completely tied to the core, so the core acts as a stress web, and the laminate acts as an "i-beam".
Don't drill holes... even if you're going to do a re-coring job. It will make doing the repair more difficult than it would be otherwise.
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Sailingdog
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Telstar 28
New England
You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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Still—DON'T READ THAT POST AGAIN.
Last edited by sailingdog; 06-10-2008 at 02:46 AM.
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