proper arc.

I just got a chinese inverter 3 in 1 unit.

The first few welds on 4130 worked ok but,now my arc strays off to the side and wont puddle even at high amps. I ground the electrode correctly. I did run out of argon on my last attempt. What do you think? Other than I should not have bought a chinese welder. Thanks.

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try again with a fresh tank of argon.

it sounds like a call to customer support is needed.