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Thread: Vacuum Chamber.........

  1. #1
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    Vacuum Chamber.........

    I wanted to see if my idea for a tap into a cylinder would work, and or be vacuum tight, so I built a little vacuum chamber......

    15cm pipe and fittings, and my rotary vacuum pump

    Attachment 12387
    This is what I made the closed end up from, one cap, and two fittings, with a sealing washer, I also used Teflon tape on the threads.

    Attachment 12390 Attachment 12388 Attachment 12389
    Here we are done, the one end unscrews for easy access.

    Attachment 12391 Attachment 12392

    As you can see, the pump sucks this hose flat in seconds, dunno if they is going to be a problem or not

    It seemed to work just fine.

    I'll be using it for stabilizing pen blanks etc.

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

  2. #2
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    stu, look for some better hose.....thicker wall. you don`t need nylon reinforcement it`s not subject to positive pressure...
    [SIZE="1"] associated with several importers and manufacturers.[/SIZE]

  3. #3
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    OK, thanks Tod, I will.

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

  4. #4
    Stu, My Prosthetic legs have vacuum pumps that pull around 27 in. mercury with each step. There is a small hose leading from the pump to the stump sockets. It takes a hose especially made for vacuum as another hose similar in apperance and of the same physical size, Obtained from the local Hardware store, will collapse under vacuum. For all practical purposes you can't see the difference but there is a difference, the vacuum hose is stiffer and comes on a roll marked "Vacuum" I say this because I learned DAMHIK this trough trial and error (lots of error) As an example of what you are facing. Advice is to seek out Vacuum Hose. The system may work when all componants are in place because there is enough leakage to keep the pump working and not yet flatten the hose, seal all leaks and the hose will fail (weakest link)

    Also. A hose that needs re-enforcement to keep it from ballooning (like the braided hose you used) will most definately need help to keep it from flattening out under vacuum. My neighbor replaced the ''incoming" water line to his pool with a braided hose as he thought it would be stronger (braided means stronger, right) and he had the same failure, where the pool pump sucked the walls flat. He went to the Pool store and got the correct hose (much higher price) and repaired the problem (now he is out for the expensive hose as well as the cheaper braided hose... which wasn't very cheap) BTW My pool is Hard plumbed with PVC and I don't have that problem.

    Keep up with the progress pictures, they are most interesting... Between you and Niki, my head is spinning with "How did I ever survive" but your adventures and devices are like Eye Candy... "Jigs & Fixture Porn"

  5. #5
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    Boy-o-boy!!!.....You the vacuuming man Stu!

    Maybe you could give us boneheads an explanation why pen blanks need stabilizing and how this is accomplished.?.?.?

    Thanks very much...................


    P.S......Don't forget, if you pull too MUCH of a vacuum, you can disrupt the time/space continuum.
    Thanks, Mark.

    Custom Bonehead.

    My diet is working good. I'm down to needing just one chair now.

    "Just think how stupid the average person is, and then realize that half of them are even stupider!" --George Carlin

  6. #6
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    Quote Originally Posted by Mark Rios View Post
    P.S......Don't forget, if you pull too MUCH of a vacuum, you can disrupt the time/space continuum.
    ...as evidenced by Mark's avatar.

    Cool vacuum chamber Stu.
    Irony: The opposite of Wrinkly

  7. #7
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    Quote Originally Posted by Mark Rios View Post
    Boy-o-boy!!!.....You the vacuuming man Stu!
    Mark, are you saying that I SUCK

    Quote Originally Posted by Mark Rios
    Maybe you could give us boneheads an explanation why pen blanks need stabilizing and how this is accomplished.?.?.?

    Thanks very much...................


    P.S......Don't forget, if you pull too MUCH of a vacuum, you can disrupt the time/space continuum.
    Don't worry about the space time thing, remember I'm half a day at least ahead of you

    Some wooden blanks have punky, or soft spots in them, these are also usually VERY nice looking pieces of wood, but they ten to go "BOOM" when you try to turn them, so what you do, I hear, is make a trough of sorts out of tin foil, place the blank in the trough, fill with whatever you are using to "stabilize" the blank, place it in the vacuum chamber, and then apply the vacuum, any and all air in the blank is sucked out, replaced by the stabilizing fluid you put in the trough.

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

  8. #8
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    Sorry I missed this until now Stu.

    Thanks very much for the explanation. You turners are a magical and mysterious lot.

    And yes....you do suck!!!


    Thanks again.
    Thanks, Mark.

    Custom Bonehead.

    My diet is working good. I'm down to needing just one chair now.

    "Just think how stupid the average person is, and then realize that half of them are even stupider!" --George Carlin

  9. #9
    Join Date
    Oct 2007
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    N. Ga.
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    Stuart,
    A buddy of mine treats his heavily spalted (punky) maple in a vacuum using
    Minwax Wood Hardener (available at the big box stores.) He did say
    the solvent in the Minwax boils off REAL fast under vacuum. When
    you read the product label you wouldn't want to do this without a LOT
    of fresh air (outside preferably). ....AND NO OPEN FLAMES.

    He's had good results on his turnings so far.

    Good luck...keep us posted on your results

  10. #10
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    Thanks Jim, I've not tried that yet, but maybe for the pen blanks I might.

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

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