Sweet DIY Spot Welder

Ran across this on Hackaday, and now I need to build one.

Hackaday

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It’s fine, but it’s just like the hundreds of microwave transformer DIY spot welders on YouTube, except this one uses a solid state relay to activate.

And uses a microcontroller to implement double-pulse welding which is fully customizeable.

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Why add complexity, this is what I use :smiley:

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nice! I like the hacked-together stuff! footswitch?

Nah, momentary switch in the hand. The copper rods can be held in one hand…

Sooooo… Is this YOU!?! :slight_smile:

Great vid, BTW!

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No, this is me…

I made this pack with it…

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This is a really cool design. Simple enough, yet with some great features. I’ve been looking into building my own welder, because the Sunnko 788+ that I bought isn’t powerful enough to weld through some of the thicker nickel strip available. I would rather have heavier duty strip for better current transfer, but also for a bit more mechanical strength. I want to build one of these and see what kind of jigs I could make to make the job that much easier. Love this design!!

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Very nice!! That is a beautiful pack! Looks like those welds are really clean. Are you using heavier gauge nickel strip?

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0.15mm but actual pure nickel, not nickel plated steel…

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