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My Magnificent Mig Machine Modification

Discussion in 'Builds and Fabricators Forum' started by Howard Eisenhauer, Aug 11, 2006.

  1. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Howard Eisenhauer, Aug 11, 2006
    #1
  2. Tuxedo Lark

    Tuxedo Lark Cracked out on Sun Drop

    Two other modifications you might consider I've found very handy on my Dad's little italian MIG. One is a switch which allows him to reverse the wire feed, so that you can easily adjust the length of wire protruding when you start. The other is a relay (bypassable) which won't let the wire feed without a ground for the arc. This is not so important under perfect conditions, where you are working on on a steel welding table welding clean, new metal. But we are welding on Jeeps, for crying out loud, and how many times have you had the wire just feed and feed out because the ground clamp didn't make its way through the rust....?
     
    Tuxedo Lark, Aug 11, 2006
    #2
  3. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Now why didn't you bring these up BEFORE I put the cover back on ?!? R)


    Those do sound like darn good ideas though :)

    H.
     
    Howard Eisenhauer, Aug 11, 2006
    #3
  4. Tuxedo Lark

    Tuxedo Lark Cracked out on Sun Drop

    Dangit, I can't do EVERYTHING!
     
    Tuxedo Lark, Aug 21, 2006
    #4
  5. 71CJ%

    71CJ% New Member

    Well since you’re in the MIG mod mode. You might also want to add a delay on arc strike. This is done on the big machines. You pull the trigger and the solenoid for the gas turns on a fraction of a second before welding starts. This gives you a shield before welding. They also have the ability to continue feeding gas for a time after ending your weld.

    I was also wondering how long the delay is before you get shielding gas and if you notice it?
     
    71CJ%, Aug 30, 2006
    #5
  6. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    I can't say I have noticed any delay in the gas, that may be due to the trigger operated valve in the handle, leaky though it may be, keeping the line at least partially pressurized. Actually I've found I can get 10 seconds or so of good welding with the tank turned off, when it starts spattering thats my clue that I forgot to open the valve :rofl: .
     
    Howard Eisenhauer, Aug 30, 2006
    #6
  7. Old Bill

    Old Bill Aggressively passive....

    Didja add a cooling fan while you were at it, or did it have one already?

    I'll have to look into that mod....
     
    Old Bill, Sep 8, 2006
    #7
  8. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Nope, already had a fan.

    H.
     
    Howard Eisenhauer, Sep 10, 2006
    #8