EP#361: Cold Welding This Podcast Together
Jan 14, 2023•49 min•Ep. 361
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Episode description
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
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