Originally Posted by Swap_File

If you have a DC stick welder, just go to www.weldingdepot.com and get a TIG torch and accessory kit. Something like the WP9 is cheap and should work. Then just hook it up to the DC stick welder in place of the normal "stick holder", and then hook your argon up to the torch, and you are done. If you want you can hook up some solenoids to turn the gas on and off with a switch, otherwise just use the ***** on the tank. You just can't weld Aluminum with it, because that needs AC. If you want to do AC TIG you need to make one of those complex controller boards that others have posted links to. Eventually I may build one of them, but I wanted to start simple.

My motor does about 3450 RPM , and then it is stepped up to close to 6000 RPM.

Edit:
Accessory kit: http://store.weldingdepot.com/cgi/we...epot/AK-x.html
Torch: http://store.weldingdepot.com/cgi/we...pot/WP9-x.html
These torches have either 12 or 24 foot long cables. Torches have either have two cables (one for power, and one for gas), or a combined cable. Units with combined cables are supposedly more rugged. If you get a combined cable unit you need a power cable adapter:
Power Adapter: http://store.weldingdepot.com/cgi/we...ot/105Z57.html

Originally Posted by surfingsk8r

actually you could proboably make it ac simpiler than your thinking, you see alternaters start out by putting out ac current but cars cant use ac current so they go through a rectifier bridge on the back of the alternater tahts just a set of diodes to control the direction of current, i think if you took the rectifier bridge off you would have yourself an ac welder.

Originally Posted by sakpase

I want one