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  1. #1
    Join Date
    Aug 2009
    Location
    2/3 or year in Sacramento, CA and rest in Golden Valley, AZ
    Posts
    21

    Default Plasma cutting table question

    Hello all,

    I am new to welding and plasma cutting, but it looked like fun so I puthased a Millermatic 211 and a Hypertherm Max 30. Been having fun with the cutter, and plan to start using the welder today (it just arrived last Friday).

    I have seen a number of these on line, and I have a question. How do they work? My question is how is it that when you are using one you do not cut through the ribs of the table? I have thought about making a cutting table, but I have always wondered how one does not cut through the ribs/cross members of the table when cutting a piece of steel on it. Can someone explain how they work to me?

    Also, can anyone send me some pictures of a smaller portable one that I can build and use? Do I put it on my welding table to use? Or do I need to make it so it stands independently?

    Thanks.
    Darryl

  2. #2
    Join Date
    Sep 2005
    Location
    Warren PA
    Posts
    103

    Default

    with oxy-fuel cutting, any sort of air gap will stop the cutting. I believe plasma behaves in a similar manner.

    Ideally, you want your cutting table to be a bed of nails sort of arrangement.

    If they were not so expensive, id get acorn cutting pyramids and make some sort of table to support those. For something more real, an old drain grate from the scrap yard makes a pretty good cutting table.

  3. #3
    Join Date
    Dec 2007
    Location
    Los Angeles
    Posts
    2,860

    Default

    This is one we made- small and rolls around.





    and the Mrs. cutting some sheet stock

    Ed Conley
    http://www.screamingbroccoli.net/
    MM252
    MM211
    Passport Plus w/Spool Gun
    TA185
    Miller 125c Plasma 120v
    O/A set
    SO 2020 Bender
    You can call me Bacchus

  4. #4
    Join Date
    Aug 2009
    Location
    2/3 or year in Sacramento, CA and rest in Golden Valley, AZ
    Posts
    21

    Default cutting table

    Thanks for the pix and the diagram -- is the barrel it sits on empty?
    Darryl

  5. #5
    Join Date
    Dec 2007
    Location
    Los Angeles
    Posts
    2,860

    Default

    Quote Originally Posted by sport.pilot View Post
    Thanks for the pix and the diagram -- is the barrel it sits on empty?
    Yup- just full of cut out pieces of metal now
    Ed Conley
    http://www.screamingbroccoli.net/
    MM252
    MM211
    Passport Plus w/Spool Gun
    TA185
    Miller 125c Plasma 120v
    O/A set
    SO 2020 Bender
    You can call me Bacchus

  6. #6
    Join Date
    Aug 2009
    Location
    2/3 or year in Sacramento, CA and rest in Golden Valley, AZ
    Posts
    21

    Default cutting table device

    Bacchus

    How far apart aproximately did you space the angle iron? Looks like a simple project and fix for me. Thanks again.
    Darryl

  7. #7
    Join Date
    Dec 2006
    Location
    Boise, ID
    Posts
    36

    Default

    My table is constructed with 1 1/4" square tubing for a frame. Before assembling, I cut in 1/8" slices almost all the way though to one side when the square tube was in the chop saw at an angle (not flat) on two of the pieces. I placed the cuts about 1 1/2 inches apart. Then welded the tube into a square frame, with the cuts opposite each other and with the side with the cut going all the way to bottom wall facing in. Then cut 1" by 1/8 flat strap into the cuts. This way you can pull out the slats and turn them over -- because they do get cut up a bit -- also when you drop a piece into the tray below (I formed a funnel type tray below that empties into a 5 gallon bucket) you can pull a couple of struts and reach down inside. If some cross members get cut up too much, just replace those you need to.

    P1000961.JPG

    Here you can see the slots that the strap drops into.
    P1000960.JPG

    Hope that helps

    Bob

  8. #8
    Join Date
    Dec 2007
    Location
    Los Angeles
    Posts
    2,860

    Default

    Can't remember but probably 1/4"-

    Wish you were closer, still have some of the barrels.

    Quick fix is find a metal garbage can and just place the Grate on it.
    Ed Conley
    http://www.screamingbroccoli.net/
    MM252
    MM211
    Passport Plus w/Spool Gun
    TA185
    Miller 125c Plasma 120v
    O/A set
    SO 2020 Bender
    You can call me Bacchus

  9. #9
    Join Date
    Aug 2009
    Location
    2/3 or year in Sacramento, CA and rest in Golden Valley, AZ
    Posts
    21

    Default Cutting table

    Thanks for all the great ideas and the pics. I will get to work.
    Darryl

  10. #10
    Join Date
    Jun 2007
    Location
    arizona
    Posts
    105

    Default

    I put the metal that I'm cutting on bricks on my table and move the bricks around under the metal so I always have an open space under the metal where I'm cutting.
    cat

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