[Radu Motisan] wrote in to share a cool project he has been working on lately, a pulsed microspot welder/cutter. The device is capable of spot welding thin metals such as foils and battery tabs by ...

Hackaday reader [David] was looking for a cheap and easy way to spot weld copper tabs together. As he notes in his writeup, the properties of copper which are most enticing, such as high thermal ...