In cutting shapes plama cutters seem to do well with flat surfaces, but what about rounds? If you have a "1/2" plasma cutter are you limited to 1/2" rounds or can you even cut that? The distance from the torch tip to the metal seems to be important so it does not seem like you can just slice it like flat surfaces. Are there any shapes that are difficult or impossible to cut with a plasma torch?
And what about the metal itself? Can it cut copper bars? Can it cut lead ingots? I saw one post on the internet that said a plasma torch runs at 60,000 deg F so it can cut anything. That does not seem to be true - fits into the "if it's to good to be true, it probably is" category.