13 October 2020

Dark Welder 2: My battery tab spot welder!After the failure of my $16 battery tab spot welder, I saw Kevin Dark’s DIY version.

But it wasn’t exactly what I needed, so I decided to build a modified version.

The Modified Dark Welder, or Dark Welder 2.0, has a foot switch that triggers a precise welding current pulse that is always the same length of time – no matter how long you hold down the button.

And in my new version, the button is now a foot pedal to keep your hands free.

The best part is: IT WORKS!

Off we go:

Stuff mentioned in the video:

Also, don’t miss his nifty 18650-powered DIY electric skateboards!

Schematic

Click to view larger version:

Dark Welder 2 SchematicParts List (some affiliate links):

That’s all, folks!

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Dark Welder 2: My DIY battery tab spot welder
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