Josh at imsolidstate came across an extra battery charger, so he decided to turn it into a spot welder. We’ve seen spot welder projects in the past, however his goes the extra mile, adding a digital control circuit and current monitoring capabilities, to give precise control over the welding operation. Schematic and source code are available on his site.
More:
- World’s smallest spot-welding device
- Homemade Spot Welder
- Homemade Spot Welder
- Do-it-Yourself Spot Welder
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