These aren't used as teaching tools so much as "demo" tools. They are the rough welding equivalent to running a flight simulator on a laptop with a single USB j

These aren't used as teaching tools so much as "demo" tools. They are the rough welding equivalent to running a flight simulator on a laptop with a single USB joystick. They are good for bringing out to trade shows, job fairs, and other marketing venues to sort-of simulate what it's like to weld something, with all the dangers removed.