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Thread: HF #18, Large Birch

  1. #1
    Join Date
    Oct 2007
    Location
    Harvey, Michigan
    Posts
    687

    HF #18, Large Birch

    This is the biggest hollow form I have turned to date and it was interesting! I roughed this form back in September ’07 but because I was very new at hollow forms I did not take the time to rough it out correctly – meaning I left it thicker in some places than others. Even with the DNA soak – that translates into cracks! So, turning this became very interesting because the thinner it got the more pronounced the click-click-click became as I hit the various cracks. It was a little nerve racking for me as I really didn’t know if this form was going to make it off the lathe in one piece or not. It did.

    Hollow form #18, birch (not spalted for a change), 12” diameter x 6 ¼” high. Cracks were filled with thin CA and birch powder from hollowing (that’s how you know it’s time to sharpen the cutter!!) Sanded to 400 and it has 5 thinned coats of Minwax wipe-on poly there were applied and then immediately wiped off. I'll wait for about a week for the poly to cure and then buff just to add the super slick feel of the wax.

    Click image for larger version. 

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    As always – your comments and critiques are encouraged and appreciated!

    Thanks for looking!
    Steve

  2. #2
    Join Date
    Feb 2008
    Location
    Cornwall, England
    Posts
    392
    I love these things. This looks really good to me and I am impressed by the size as well. Bet it took a while to get the wood out

    Isn't there a name for this shape? Looks like some kind of pottery if I remember correctly

    Pete

  3. #3
    Join Date
    Apr 2007
    Location
    Decatur, Illinois
    Posts
    177
    steve, i like that form as well. are you using the monster hollowing rig?

    it's interesting to see that the cracks in this birch are 90 deg to the grain. i saw the same thing in the cherry i was complaining about last week. obviously it makes sense but it just seems that wood would want to crack with the grain instead of across grain. in the future i'm going to be more consceintious in covering the outside of dna treated stuff while it dries from the inside to see if that will stop the cracking.
    99% of lawyers give the rest a bad name...Steven Wright.

  4. #4
    Join Date
    Oct 2007
    Location
    Harvey, Michigan
    Posts
    687
    Thanks for the kind comments!

    Pete - this is my interpretation of an American Southwest style of pottery. You have to allow me a little artistic license as to the actual form...

    Clark - I have had this problem a few times and each time it was because I did not keep the wood a consistant thickness when roughing it before submitting it to the DNA soak. All of the forms that were of same thickness had no cracks develope. Lesson there somewhere...
    Steve

  5. #5
    Join Date
    Dec 2007
    Location
    Los Angeles, CA
    Posts
    2,668
    Very nice. If the thickness is the same throughout then judging by the mouth, it must be very thin.

    I'd love to see it after the final finish.

  6. #6
    Join Date
    Apr 2007
    Location
    Red Deer, Alberta, Canada
    Posts
    618
    Another beauty, Steve.
    Very nice looking chunk of birch.

  7. #7
    Join Date
    Oct 2006
    Location
    ABQ NM
    Posts
    30,008
    You nailed another nice one, Steve. I don't see anything to critique.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

  8. #8
    Join Date
    Sep 2007
    Posts
    613
    Steve, I admire your turning skills on this really big hollow form.
    I turned a lot of birch in the past, but never runs into crack problems, was I than lucky or....???)))
    Ad

  9. #9
    Join Date
    Oct 2006
    Location
    Tokyo Japan
    Posts
    15,807
    That looks great, I'm sure happy it survived the ride on the lathe

    Are you planning any kind of a collar?

    Cheers!
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  10. #10
    Join Date
    Jul 2007
    Location
    Des Moines, IA
    Posts
    854
    Steve, another nice one. I am working on a couple myself. Will have to post them when I get finished.

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