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  1. #1
    Full Member level 6
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    homemade spot welder

    Need spot welding circuit for mobile phone battery connection.
    Please help me.

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  2. #2
    Advanced Member level 4
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    spot welder circuit

    Here is the URL for a nice homemade spot welder.

    h**p://www.frii.com/~katana/spotweld.html

    (*=t)



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  3. #3
    Full Member level 2
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    hobby spot welder

    I built last year a spot weld to weld inox slab.
    I used a tranformer of about 3kVA where I rewing the secondary with a 10mm^2 insulated wire, about 4 turns.
    Very important is the pliers. I used two electrolitic copper tips.
    however to build battery pack you don't need too much power and everything is less critical. Use a pedal as switch.

    Lollobrigido



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  4. #4
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    home made spot welder

    What is the diff. in the doing a spot welding by DC and AC,
    Can any body help me to get the schematics for the plasma welding using IGBT.
    thanks :)



  5. #5
    Newbie level 1
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    Re: Need spot welding circuit.

    Hi, what the difference of a spot welder DC and AC?
    Who can share your shematic, i need spot welder.

    What do you think about : http://www.teralab.co.uk/Electronics...lder_Page1.htm



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