The device is capable of spot welding thin metals such as foils and battery tabs by sending a pair of high current pulses between the two electrodes whenever [Radu] presses the trigger button.

The Idea Forge houses a shop specifically for welding purposes. It contains four MIG machines in individual stations, one large MIG machine (with an aluminum spool gun attachment), and two TIG ...

Did we mention how cheap welding wire is? A cost that could add up is the shielding gas though, but as a user on Reddit points out, an upgrade for this machine could be an enclosed build chamber ...