We have a Harbor Freight welder at the lab. Digitalman2112 brought it in. It's nothing special, the wire generates shield gasses so you shouldn't need any, not that it has the capability to use any. It's loaded up with a spool that sits on top, has a high/low current switch, and an adjustable feedrate. It seems to work on the lab's janky wiring.
Caution! It should go without saying that welders are not to be taken lightly. There's plenty of electricity to mess you up really bad, not to mention balls of hot metal flying about, arc light that can burn your retinas and UV rays that will give you a sunburn. Better get training on this one before using it.
As stated above, do not use this without knowing what the hell you are doing, i.e. having spent time welding before, or getting trained on it by someone who does know.
People who can work the welder:
- Digitalman2112 - he also has a true MIG setup for both steel and aluminum as well as a handheld plasma cutter, but they don't live at the lab. If you need to do metalwork, just ask.
If you don't know how to work it, ask one of these guys. Welding is not easy and takes a bit to get the hang of, there's no instructions you can read and be good at it.