Circuit Break - A MacroFab Podcast

EP#361: Cold Welding This Podcast Together


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Adding Cold Welding Function to any Welder

  • Cold spot weld function
  • Most tig welders interface with a 5 pin foot controller 
    • 3 pins for potentiometer - analog signal telling how much amperage
    • 2 pin switch for initiating the arc
  • Made a circuit to spoof the footswitch 
    • 555 timer to set the duty cycle
    • Monostable mode
    • Capacitively coupled to allow for single button presses
  • Range: 1ms to 100ms
...more
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Circuit Break - A MacroFab PodcastBy MacroFab, Inc.

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