Quote Originally Posted by Binraker View Post
Yes it is a little more complex. The idea is basically a mechanically actuated scratch start TIG welder with arc timer. The magic is in the timing. The order of actions is something like: turn on gas, wait a bit for it to flow and cover everything, start electrode retract (it will take a millisecond or 2 to get moving and we want to turn on the caps just before the electrode leaves the surface, wait a few milliseconds, turn on cap bank, wait the desired amount of weld time, turn off cap bank, wait a bit to allow the user to remove the item, turn off the gas and release the electrode. It's all millisecond stuff so its not fast but it is "fast" from a human point of view.
Microcontroller?