Tool MetalFab is a unique laser cutter/welder that can handle materials 0.2-10mm thick. The machine can be used as a gantry laser cutter or handheld welder, delivering flexibility to metalworking ...

Welding isn't an easy skill to master, nor a cheap one. However, the xTool MetalFab changes all of that by being an all-in-one metal fabrication solution.

(Use science for peace please!) I did really need a spot welder though, and there was no shortage of examples of people who had built their own from supercapacitors, typically in the 500 F range.