He starts the build off by modifying an arc lighter, the fancy kind one might use to light a fire on a windy day, so that it can be controlled by a micro-controller. The arc is moved to the needle ...

And that’s how [PodeCoet] found himself in possession of a couple of double-arc ... Dual-arcs are the same, but twice the fun. [PodeCoet] starts off with a tear down of the lighter, to figure ...