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  1. #1
    Join Date
    Jun 2011
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    Carseldine, Queensland
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    Default Advice needed regarding cupping on a piece of Spotted Gum.

    Have a great looking piece of Spotted Gum which was destined to be a box lid. Since being cut to size it has cupped 3.5 mm over a width of 210mm. Can this be redeemed and if so how. Any and all advice appreciated. Brian.

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  3. #2
    Join Date
    Jul 2014
    Location
    Brisbane
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    Default

    How was it stored? If you put it cupped side down in the sun (not that there is much sun today) it may flatten out again. Was the last cut a resaw or plane down to final thickness?

  4. #3
    Join Date
    Aug 2008
    Location
    Melbourne
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    5,031

    Default


    Timber will tend to cup away from whatever surface it's sitting on; a little bit of water on the cupped side can help as well, but you can send it too far the other way so it's a bit of a guessing game.

    At my old work we'd sometimes de-cup whole table tops by wetting the cupped side and leaving it on the ground over night.

  5. #4
    Join Date
    Jun 2011
    Location
    Carseldine, Queensland
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    80
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    135

    Default

    Hi Alkahestic, the piece has been stored flat on shelf for about 5 months. It was cut from a longer length just a short while after I got it and was finish machined just needing a light sanding. The rest of the original length has been used without any problems. Thanks for the reply. Brian.

  6. #5
    Join Date
    Jun 2011
    Location
    Carseldine, Queensland
    Age
    80
    Posts
    135

    Default

    Hi Elanjacobs, Thanks for your reply, will try the water treatment and if no success will probably finish it life a firewood. Thanks again. Brian.

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