[Brett] from [Theoretically Practical] has done with his old MIG ... welding timer automatically limits welding time, enabling consistent and repeatable spot welds. The Miller S-22A wire feeder ...

[Dominik Meffert] has done exactly this with his wire 3D printer project. Extruder cold end using a standard feeder roller For his filament, [Dominik] chose standard welding wire, and has also ...