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Thread: Vac chuck woes

  1. #1
    Join Date
    May 2007
    Location
    Rhode Island
    Posts
    800

    Vac chuck woes

    Well,
    I got some good info from John so I have wanted to make a vac chuck so I glued up some corian & here's what happened.


    I am so pissed. I found one o-ring of the right size so I turned the whole thing & got the depth of the recess perfect & the o-rings fit exactly right. Then I drilled the thru hole of 3/8" then turned it around & used a spade bit of 7/8" (the biggest I had to the size of the bearings,) Then I was using my Ci1 mini easy rougher & just taking out dust when the dam thing exploded. was I pissed so I shut off the lights & figured I would make another one tomorrow

    Click for full size


  2. #2
    Join Date
    Mar 2008
    Location
    bethel springs TN, but was born and raised in north east PA
    Posts
    3,132
    Quote Originally Posted by Chuck Beland View Post
    Well,
    I got some good info from John so I have wanted to make a vac chuck so I glued up some corian & here's what happened.


    I am so pissed. I found one o-ring of the right size so I turned the whole thing & got the depth of the recess perfect & the o-rings fit exactly right. Then I drilled the thru hole of 3/8" then turned it around & used a spade bit of 7/8" (the biggest I had to the size of the bearings,) Then I was using my Ci1 mini easy rougher & just taking out dust when the dam thing exploded. was I pissed so I shut off the lights & figured I would make another one tomorrow

    Click for full size

    Chuck what a bummer. you'll have better luck tomorrow.

  3. #3
    Join Date
    Jun 2008
    Location
    GTA Ontario Canada
    Posts
    12,246
    Sorry to hear that bad news Chuck. Hope it works out ok tomorrow. Any idea what cause the explosion. I mean is there a fault in the casting of the material. You dont want it repeating itself again if you can help it after all that work.
    cheers

  4. #4
    Chuck,

    That stuff glues back together very nicely, strong and smooth.


    Just a thought!
    Remember the tea kettle - it is always up to its neck in hot water, yet it
    still sings!

  5. #5
    Join Date
    May 2007
    Location
    Rhode Island
    Posts
    800
    I'm not sure why it exploded I got the 1/2" depth perfectly & needed to enlarge the hole about 1/8" I had to hold the mini easy rougher on it's side cause the steel shaft was touching the corian before the cutting edge.

    I think maybe I didn't make the diameter that houses the bearing thick enough.
    I think I'll add about 1/4" to it

  6. #6
    Join Date
    Jul 2008
    Location
    Kaneohe HI.
    Posts
    70

    Corian

    Chuck, sorry to hear about your experience. While making mine, I experienced problems turning the corian. That's the reason I told you to go slowly and on the final measurements I used a file and sandpaper. Also maybe using the spade drill fractured the corian joints. Do you have a Fortsner bit? I feel that cuts evenly as compared to the spade bit. Better luck on you next try.

  7. #7
    Join Date
    Dec 2006
    Location
    Central Illinois
    Posts
    936
    Maybe that's why they used aluminum on mine.

    Bruce
    Bruce Shiverdecker - Retired Starving Artist ( No longer a Part timer at Woodcraft, Peoria, Il.)

    "The great thing about turning is that all you have to do is remove what's not needed and you have something beautiful. Nature does the hard part!"

  8. #8
    Join Date
    May 2007
    Location
    Rhode Island
    Posts
    800
    I think I know why it happened. I didn't rough up the corian with sandpaper. so it was way to smooth there was no adhesion.
    \
    Bruce,
    Did you buy one?

  9. #9
    Join Date
    May 2007
    Location
    Rhode Island
    Posts
    800
    Well,
    I got to say thanks to John F for his help. After blowing up a few pieces of corian this is the finished product.
    Attached Thumbnails Attached Thumbnails vac 1.jpg   vac 2.jpg   vac 3.jpg  

  10. #10
    Join Date
    Nov 2008
    Location
    Tampa & NC
    Posts
    432

    Vac Chuck woes

    Looks like you got goin there chuck ole boy, now clean your fingernails before ya go eat

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