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Thread: Can your plywood do this??

  1. #1
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    Can your plywood do this??

    I ran out of space on the outfeed tables so I had to move it out of the way.


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    God grant me the senility to forget the people I never liked anyway,
    the good fortune to run into the ones I do,
    and the eyesight to tell the difference.


    Kudzu Craft Lightweight Skin on frame Kayaks.
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  2. #2
    Excellant example of Creative Problem Solving and Workshop Limitations Counter Engineering

  3. #3
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    That pretty much explains how you're gonna be able to bend the pieces of the kayak. How thick is it? Is it special "bending ply"?
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  4. #4
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    It 3mm Okoume marine plywood. Not bending ply, just very thin. It's hard to do anything with a full sheet it's so floppy. Thought about tying it in a knot and taking a photo. But this worked just as good.

    Before you ask Okoume ( o-KUE-me), also known as Gaboon, is an African hardwood widely used in Europe over the past century.
    God grant me the senility to forget the people I never liked anyway,
    the good fortune to run into the ones I do,
    and the eyesight to tell the difference.


    Kudzu Craft Lightweight Skin on frame Kayaks.
    Custom built boats and Kits

  5. #5
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    Pretty nifty, but I saw some 3/4" birch "cabinet grade" ply at Home Depot the other day that was even more curved than your piece
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  6. #6
    At the shop we call that wood "wacky wood", since you can bend the stuff into a pretzel. Its pretty neat stuff. They have some other cool plywoods too like plastic cored plywood, which is this honeycomb looking plastic webbing inside two layers of birch veneer plywood outer cored. Most of it is to reduce weight so the boats go faster in the water? When you get into marine plywoods, you can run into some unique stuff.
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  7. #7
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    Heck, I hear you can drive forklifts over that stuff with out any damage
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  8. #8
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    Surprised no one else mentioned this, but it looks like that long piece is made from three shorter pieces joined on end. What sort of join and glue did you use that allow that to bend like that without breaking?
    Jerry

    http://www.sawdustersplace.com

    "If politics wasn't built on careful deception it wouldn't need its own word and techniques. It would just be called honesty, education, and leadership."
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  9. #9
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    A scarf joint. Basically a very long bevel cut on the ends and then glue them together. Here is something I found that shows it pretty well.

    http://www.naese.com/scarfing.htm
    God grant me the senility to forget the people I never liked anyway,
    the good fortune to run into the ones I do,
    and the eyesight to tell the difference.


    Kudzu Craft Lightweight Skin on frame Kayaks.
    Custom built boats and Kits

  10. #10
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    Yeah, I know scarf joints, just couldn't really see well in the pic. I used scarf joints to make longer some 8' long ply into 15' long ply for a pirout I made several years ago, but I don't know that I would have trusted the joints to hold with that much bend.

    Since this is for a boat, presuming that you used epoxy for the joint?
    Jerry

    http://www.sawdustersplace.com

    "If politics wasn't built on careful deception it wouldn't need its own word and techniques. It would just be called honesty, education, and leadership."
    Bob "Phydeaux" Stewart one day on Woodnet

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