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Thread: Vac set up help

  1. #1
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    Vac set up help

    Well, I bought this Gast pump from someone at a very decent price. My next question is hjow do I set it up to use for my lathe? types & quantity of fittings needed & how to put it together.

    Thanks
    Attached Thumbnails Attached Thumbnails vac pump.JPG  

  2. #2
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    Steve Schlumpf did a good write-up a while back. That's probably a good starting point:

    http://familywoodworking.org/forums/...ead.php?t=7984
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

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  3. #3
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    Vaughn,
    Thanks for making me remember this post.

  4. #4
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    Chuck you might try this site. I got most of my fittings and parts from him. He has Steve's tutorial on the website. Lots of great info. Not affiliated just a satisfied customer.

    http://www.jtturningtools.com/

    Go down toward the bottom on the right side and see "Assembling a Vacuum Chuck System." Tom is great to work with and very helpful.
    Last edited by Bernie Weishapl; 12-04-2010 at 04:34 PM.
    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.

  5. #5
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    Bernie,
    Thanks, It looks like some of his are plastic connectors, I just want all brass for safety reasons.

  6. #6
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    Quote Originally Posted by Chuck Beland View Post
    Bernie,
    Thanks, It looks like some of his are plastic connectors, I just want all brass for safety reasons.
    Chuck, it's not like compressed air. If something fails, there's no danger. All that happens is you hear a hissing sound. That Gast pump can crush a trash can, but it can't throw broken parts at you.
    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

  7. #7

    Vac System

    Hey Bernie,

    What the heck is that VAC system for. I checked out the article and it's way over my head. What exactly are they building there?

    When I think VAC I think stabilizing blanks or dust collection. I have no idea what they are using that for. Please explain, looks interesting and I'd love to build more stuff!
    Husband and Daddy is my primary job, the other thing I do is for money.
    www.blackswampwoodturning.webs.com

  8. #8
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    Vaughn,
    I was more concerned about losing vacuum & having the turning become a missile.

  9. #9
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    Quote Originally Posted by Chuck Beland View Post
    Vaughn,
    I was more concerned about losing vacuum & having the turning become a missile.
    Ah...that makes sense. Although I've found I still use the tailstock for insurance when finishing a bottom, then only move it out of the way to make the last few cuts and to do the sanding. Especially at sanding speeds, it's not real likely to get too ballistic if it comes loose. Still, brass fittings would be a safer bet than plastic.

    Quote Originally Posted by Drew Croy View Post
    Hey Bernie,

    What the heck is that VAC system for. I checked out the article and it's way over my head. What exactly are they building there?

    When I think VAC I think stabilizing blanks or dust collection. I have no idea what they are using that for. Please explain, looks interesting and I'd love to build more stuff!
    Drew, a vacuum chuck is used to hold a piece on the lathe, typically when finishing off the bottom of the piece. You attach what's essentially a suction cup to the lathe spindle, then attach a vacuum line on the other end of the spindle (where the hand wheel often is). The trick is to have a swivel connection where the hose attaches to the spindle so the lathe can spin without twisting the hose as it goes.
    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

  10. #10
    Join Date
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    Yep Vaughn got it. It is for holding pieces on the lathe so you can finish turning them without any interference. Here are some pictures of it connected to the spindle and the next is the bowl being held in place. When the vacuum is on you cannot pull that bowl off until I release the pressure.

    Chuck I have the kit he offers because I was to lazy to figure out and order. I have had the vacuum run up to 26 hg and I can see no problems with the plastic at all.
    Attached Thumbnails Attached Thumbnails Vacuum Pump 9.jpg   Vacuum Pump 91.jpg   Vacuum Pump 92.jpg   Vacuum Pump 93.jpg   Vacuum Pump 94.jpg  

    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.

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