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Thread: Vacuum Chuck

  1. #1
    Join Date
    Jul 2008
    Location
    Kaneohe HI.
    Posts
    70

    Vacuum Chuck

    After months of planning and researching, finally got my vacuum chuck completed. With help from Richard Schlumpf and members the Honolulu Wood Turners it's done and works great. In fact it sucked the bottom out of a bowl I used to test the vacuum. Forgot to adjust the bleed valve. Got some pics.chucks

    Pic 1: Rotary adapter connected to hand wheel, 3",4"
    Pic 2: My home made rotary adapter, made of corian ,2, sealed bearings and O rings
    Pic 3: Yellow Jacket 6 CFM pump, pulls 29hg. respectively
    Information courtesy of Family Woodworking , Sawmill creek, AWW, Woodcentral, Woodturners Resource, Honolulu Wood Turners
    Attached Thumbnails Attached Thumbnails DSCN0317.JPG   DSCN0318.JPG   DSCN0319.JPG  
    Last edited by John D. Frigillana Jr.; 03-30-2010 at 05:39 AM.

  2. #2
    Join Date
    Oct 2006
    Location
    ABQ NM
    Posts
    30,017
    Wow...29 inches. That'll indeed suck the bottom out of a bowl. You're gonna love having the vacuum rig.
    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

  3. #3
    Join Date
    Oct 2006
    Location
    Tokyo Japan
    Posts
    15,807
    Looks great John

    +1 on the "You are going to love it" comment
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  4. #4
    Join Date
    Nov 2006
    Location
    Mountain Home, Arkansas
    Posts
    11,833
    Looks good. That is a serious vacuum pump ye got there.
    "Folks is funny critters."

    Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire

  5. #5
    Join Date
    Dec 2007
    Location
    Tellico Plains, Tennessee
    Posts
    4,353
    That's a really nice looking set up... need to put one together myself... might have prevented my black eye..
    Chuck
    Tellico Plains, TN
    https://www.etsy.com/shop/TellicoTurnings
    My parents taught me to respect my elders, but it's getting harder and harder to find any.
    If you go looking for trouble, it will usually find you.

  6. #6
    Join Date
    Dec 2006
    Location
    Goodland, Kansas
    Posts
    4,834
    Looks great John.
    Bernie W.

    Retirement: Thats when you return from work one day
    and say, Hi, Honey, Im home forever.

    To succeed in life, you need three things: a wishbone, a backbone and a funnybone.

  7. #7
    Join Date
    Mar 2007
    Location
    Escondido, CA
    Posts
    5,172
    Nice rig, John. I have the same lathe and several pumps. Would you please share more specifics about the Corian rotary adapter? I have a double sealed bearing and much experience with vacuum clamping for flat work. I also already have some vacuum bells to hold the bowls. Just need to get an adapter made.

  8. #8
    Join Date
    Jul 2008
    Location
    Kaneohe HI.
    Posts
    70

    Rotary adapter

    Carol, I used 5 pieces of Corian, 3" X 5". Used medium CA glue to bond them together. Next day I turned them to slightly larger than the hand piece of the lathe. Used 7/8" O.D.x3/8"i.d. sealed bearings(2) from Enco. Drilled a 7/8" hole 1/2" deep. The other end I turned it slightly smaller than the diameter of the hand wheel and drilled a 5/16" hole. I used 4 O-rings I think they were 11/32" and placed them along the tube. turned grooves to seat the rings. The last one is just used to seal between the hand wheel and the adapter. Corian is brittle so you have to turn it slowly. Hope this helps.

  9. #9
    Join Date
    May 2007
    Location
    Rhode Island
    Posts
    800
    John,
    Did you use 2 sealed bearings back to back???

  10. #10
    Join Date
    Jul 2008
    Location
    Kaneohe HI.
    Posts
    70

    Rotary adapter

    Chuck, I did use 2 sealed bearings. Just to be sure it doesn't leak. Also ,I reversed the brass fitting and attached the bearings to the barbed side, which could accept the 2 bearings. The threaded side would have been too short to mount both bearings. Filed them down and used epoxy to secure them.Works well with no leaks.

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