Artie F. Emm wrote:Back to the gas for a minute: you said the bottle has been changed, got it.

Have you made good welds with the gas from the current bottle?

No! No better!

Is the plug you plug the welder into good and tight? And is the voltage correct? I.e. Do you have a bad plug internally at the wall. Is there any thing else you took apart to transfer the welder to the other location that may have gotten reassembled one way when you were there and a different way w...

Your shielding gas is wrong. You need 75% Argon and 25% CO2 or straight CO2. He's welding aluminum right. If he is then definitely 100% argon. Aluminum doesn't like carbon dioxide. We may be hitting and missing the mark simultaneously. Sharn got sooty welds at home, moved the machine offsite and go...

exnailpounder wrote:Your shielding gas is wrong. You need 75% Argon and 25% CO2 or straight CO2.

Sorry but you wrong !!!! Aluminium is 100% argon.

Everything that has been said has been tried.

AndersK wrote:Are you welding outdoors?
Just a little draft can blow your shielding away.

No all inside

When you MIG aluminum, you will get smut because you're welding with DC and have no cleaning action. To minimize smut, crank up the CFH (pure argon) and use a push angle. As mentioned, if you're welding outdoors, be mindful of the breeze as a little cause a lot of problems. You also look cold on th...

PeteM wrote:Is your polarity correct?

I'm not awesome with aluminum, but I've never seen it do that.

Yes

Can someone please tell me what is causing this much smut? I have tried everything, and i mean everything. I even took my machine to a welding training centre and welded there and had no trouble, but when i get home it continues. 100 % argon 1.2mm 5356 250 amp machine brand new september 2016 Tried ...