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  1. #31
    Join Date
    May 2010
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    Not far enough away from Melbourne
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    3,136

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    Quote Originally Posted by thumbsucker View Post
    I opted to put them in the sun room at the rear if the house.
    You must be either single or have a very supportive partner, like mine.
    Doug3030's Open Shed Day 2019 - Sunday 6 October 2019, Hoppers Crossing
    See here for details:
    https://www.woodworkforums.com/f303/...-2019-a-224305

  2. #32
    Join Date
    Mar 2006
    Location
    Gippsland
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    3,323

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    Quote Originally Posted by doug3030 View Post
    You must be either single or have a very supportive partner, like mine.
    Married to my dog Snowflake for 8 wonderful years.

    Euge I will see you when you come back from Canberra.

    I managed to carry six of the 2700 x 250 x 60 oak boards. It's like I am practicing to be an olympic power lifter, Squat down back straight a few deep breaths and up I stand. Then I take a 10 minute break and try again.

    A neighbour offered to help me move a few tomorrow, so that will be 6 more done tomorrow.

    Only 40 left.

  3. #33
    Join Date
    Mar 2006
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    Gippsland
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    3,323

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    Questions:

    1 - Is direct sunlight an issue for drying timber? I placed the oak against the wall and it gets no direct sun, however the plane boards do get direct sun. People have said that the plane is prone to mould so I have used 20mm high stickers and next to the screened windows for maximum air flow.

    2 - I have noticed that the oak is developing surface checks were the medullary rays can be seen. I have been told that I should expect this but they will only be shallow and easy to machine away. Is this true? Can I mitigate them?

    I found a timber weight calculator for English Oak boards:


    • 60 x 250 x 2700mm - estimate weight about - 30kg each
    • 100 x 250 x 2700mm - estimate weight about - 50kg each
    • 60 x 1400 x 2700 Slab - estimate weight about - 167.8kg each

  4. #34
    Join Date
    Apr 2015
    Location
    Warragul Vic
    Posts
    926

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    Your oak was milled on a hot windy day so surface checks from rapid surface drying is expected. (Moisture can't move to surface quick enough). That should stabilise when draughts and heat is reduced in the stack inside. Slow air drying is best to reduce checking but worst for fungal attack. I would keep any wood covered from sun or direct light. These are my personal views from experience.


    Are those green weights or air dried weights?

  5. #35
    Join Date
    Mar 2006
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    Gippsland
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    3,323

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    Quote Originally Posted by Euge View Post
    Are those green weights or air dried weights?
    Dry so i would need to add 20% to get a better figure

    I will rig some kind of shade cloth for the timber

  6. #36
    Join Date
    Aug 2011
    Location
    bilpin
    Posts
    2,697

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    Milling oak in spring is high risk. Every effort should be made to keep it cool and out of sun. As summer approaches drying rates increase dramatically and surface checking will become evident. End checking will be the next battle. this stuff needs to dry slow, particularly in the early stages and particularly during warm weather.
    A hand trolley will make moving your slabs much easier. Obviously they will have to go on cross ways which will make it tricky if you have to go through a door. Trolley will allow you to shift about 4 at a time. More if you eat spinach.

  7. #37
    Join Date
    Apr 2015
    Location
    Warragul Vic
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    926

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    It might be worth having a short TEST board or TEST block that part of the stack that can be removed occasionally to WEIGH. You could have more that one. But the idea is that it should be representative of what the rest of the stack is doing. You can write the weight & date on the piece. This will allow you to Monitor Moisture Loss (ie drying rate) with time eg monthly.

    Kitchen scales or bathroom digital scales depending on size weight worked for me. I often use the when measuring wood densities.

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