Found a nice website from Miller about how to set up any tig machine for the correct settings for each type of metal, thickness and what type of weld.
Here is the site.....http://www.millerwelds.com/resources...calculator.php
It really helps to have the correct settings, the right size tungsten, and the correct amperage for tig welding anything. It does not cover welding pop cans or razor blades so that will be up to you to discover. But for most welding, all the information you will need will be there.