Open Source Spot Welder

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- A clamp that creates welds

- Usually between two sheets of metal

- Uses resistance welding

Used For

- Welding together of two sheets of metal or two seperate, and relitively flat portions of parts

Industry Standards


Existing Open Source Designs

  • This
  • This design (Note that we may want to use a safer and more reliable power supply)
  • $5 spot welder of discarded parts - Spot Welder

Minimum Viable Product

- Energy Efficient

- DC or AC input power

- Safe

- Effective

Basic Design

Power Supply


Welder Clamp


Control Panel




See Also


Useful Links

- Wikipedia Page on Spot Welding