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MAKE Magazine

• 

  Building a spot welder from a battery charger

  Posted: March 11th, 2010, 2:00pm MST

  

  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

  Read more | Permalink | Comments | Read more articles in DIY Projects | Digg this!