Manekinen’s spot welder uses a limit switch connected to a moving electrode to trigger the weld current for up to 4 seconds (as set by a pot) while giving the user time to clamp on the electrodes. It produces 2.6V at 1kA.
One cool aspect of the project is that he repurposed the transformer from a Technics SU-V670 stereo amp, and rewound the secondary winding, allowing him to power the welder from wall current.
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Manekinen’s spot welder uses a limit switch connected to a moving electrode to trigger the weld current for up to 4 seconds (as set by a pot) while giving the user time to clamp on the electrodes. It produces 2.6V at 1kA.
