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Thread: Interesting accident

  1. #11
    Join Date
    Jan 2011
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    Waterford, WI
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    Quote Originally Posted by Timbuck View Post
    The Vikings used torrefied wood because it absorbs less moisture so size and shape are more likely to remain consistent after it has been sawed and planed. In other words itís stronger and more stable as well as being lighter, which means itís equally well suited to shipbuilding, wooden flooring and guitar making.
    But what did they use to make their ukuleles?

  2. #12
    Join Date
    May 2015
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    Hemicellulose is one of the three main components of wood. It is also the main absorber of moisture and the reason why wood expands and contracts with change of moisture. Over time wood loses hemicellulose. When wood is torrified it is the hemicellulose that is first cooked off at a lower temperature than the other components. This is why torrified wood is more stable than regular wood. Contrary to popular wisdom in the instrument industry an inert atmosphere is not needed while wood is being cooked as long as the temperature does not go too high. So go too high and you get smoke, don't go high enough and you get no hemicellulose reduction.

    Cooking the wood before bending usually results in cracked wood. A way around this is to bend first and then cook. I was going to try using the heat blanket but have not started a project where I wanted to bake the wood. Too many projects I need to finish first. Nice to see that it does work. I would bake the other side and then a back for them.

  3. #13
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    Dec 2008
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    The Side of the Ocean, CA
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    Have you sanded the 'tortured' side yet? Im wondering how the figure looks on that Maple(?) after the process?
    Every time someone comes up with a foolproof solution, along comes a more-talented fool.

  4. #14
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    May 2015
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    Baked maple b&s.



    Baked sides along with non-baked flamed binding with some finish on them.


  5. #15
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    Waterford, WI
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    Quote Originally Posted by pahu View Post
    Have you sanded the 'tortured' side yet? Im wondering how the figure looks on that Maple(?) after the process?
    I haven't yet, but I should, just to see how it looks. I'll do that and report back. The wood is myrtle, which is one of my favorites to work with.

  6. #16
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    Quote Originally Posted by printer2 View Post
    Baked maple b&s.



    Baked sides along with non-baked flamed binding with some finish on them.


    Wow, that looks really nice! That looks very deep.

  7. #17
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    May 2015
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    Quote Originally Posted by finkdaddy View Post
    Wow, that looks really nice! That looks very deep.
    Two different instruments with the backs cut frome one plank and the sides from another. The finish will really pop the top one, simigloss for the one that is done, might use gloss for the other.

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