honey comb looking welds

[decaro]

Is the power pin of the mig gun fully seated in the drive housing?

Thanks guys for the quick response, it ends up that the gun somehow got pulled out partially and I had no gas coming through. I welded an truck body with this welder and came out great, all the sudden I couldn't weld for sh%^. your responses fixed me right up

[cruizer]

Its CFH, and yes 20-25, If you do indeed have 98/2, thats a spray gas, no short arc with that one..

[big mike]

Is the power pin of the mig gun fully seated in the drive housing?

[Tryagn5]

gas settings...

I am new to welding, I recently purchased a new miller 211 mvp, (about 1 year ago) I seems that the welds look like honey combs, the tank shows pressure is at 1500 I don't think that empty, I have used almost an entire 11 lb roll of wire, it is very frustrating, I have argon/02 set at 15lb any advice. Thanks decaro

First your gas is likely 75/25 mix between co2 and argon. I would set your cfm at 25. Can you hear gas coming from the nozzle of the gun when you pull the trigger?? If u can turn up the gas until the porosity goes away. Fyi the factory supplied regulators are junk. Also have you tried different gas? Maybe u have the wrong or poor quality gas.
kevin

[H80N]

I am new to welding, I recently purchased a new miller 211 mvp, (about 1 year ago) I seems that the welds look like honey combs, the tank shows pressure is at 1500 I don't think that empty, I have used almost an entire 11 lb roll of wire, it is very frustrating, I have argon/02 set at 15lb any advice. Thanks decaro

Argon/CO2..??? or do you really have Argon/O2...?? what does the label say??

15 CFH...?? Cubic Feet per Hour..

pics of some of your welds??

[decaro]

I am new to welding, I recently purchased a new miller 211 mvp, (about 1 year ago) I seems that the welds look like honey combs, the tank shows pressure is at 1500 I don't think that empty, I have used almost an entire 11 lb roll of wire, it is very frustrating, I have argon/02 set at 15lb any advice. Thanks decaro