I've got a 40 cuf argon bottle with a cheap lincoln electric mig, which works nicely on aluminum, but leaves low penetration on steel. I want to make a mixing manifold for argon and co2, but I don't want to spend $100 for a co2 cylinder. Using a C25 mix, a 16 oz paintball tank holds about 10 cubic feet, which would require refilling about when the argon is out. Paintball cylinders cost about $20, and refills cost under $5. Would it be possible to use a paintball co2 tank with a mixing manifold for welding? How would I lower the pressure in the co2 tank (~800 psi) to something close to the regulated argon outlet? A few needle valves in series with a pressure gauge? Something more complicated?
- posted
18 years ago