strange, i always adjust gas flow at the regulator, which is screwed onto the bottle and all the welder does is stop and start the flow with a solenoid...
noone mentions how galvanised steel SPITS. i dont care about a few fumes. what i care about is a white hot ball of molten steel landing in my ear!
check your spelling if talking trash and why not post up some of what you have done if you have the balls
you grind or acid etch the muck off. sometimes theres no choice, but otherwise, get the dirty stuff out of there!
noone mentioned atomic hydrogen welding, or oxy acetylene welding... both quite useable in this application.
http://www.motoredbikes.com/showthr...oject-will-be-a-screamer!&p=373053#post373053
looking at post #15.... i wouldnt be too concerned with this guys criticisms...cant even drill holes on a PCD accurately.
i reckon everyone else is starting to come to the same conclusion