The tig isn't bad, but don't expect the same quality as a dedicated Syncrowave, Maxstar, Dynasty, Invertec, Squarewave-although it is probably good enough.
That said, the tig section of the PM 300 will do a great deal of what you want. It might not be my first choice for code.025 titanium and other extreme applications, due to the lack of hi-freq, but will do most common fabrication and repair on .045+stainless, inconel, mild steel,-even some straight polarity aluminum, etc.
The PM 300 is a very good machine, and can do many things adequately. The pulse mig mode of this machine is it's claim to fame.It is an inverter based machine that runs well. It is not a Miller Shopmaster in any way, shape, or form.
I've spent a good deal of time with the PM 300 in the past year or so.
If I didn't have a large tapped transformer mig and another inverter mig, I would definitely consider buying a PM 300.
Hope this helps.
brande
I have,and also have the python too.I just have a hand amptrol with it now.I think a simple button would be great,and use the upslope/downslope with it would be fine.I Just used dinse connectors for mine,because of the rest of my machines are that style.Real fast to hook up,and way better than changing from steel to aluminum setup.I used a female cable dinse on the ground lead(good luck finding one)and another dinse lug connector on the + lug.You could use any other style that you like.The gas line just needs a cheap adapater to make work.The output is 2 amps to 300 amps dc.The lift-arc works perfect every time,and the arc is pretty smooth.It does sound a little different then my Thermal-arc 300 prowave,but it seems very nice.The prowave is just super smooth,but I do not notice any ripple in the weld puddle with the powermig.Lets put it this way it will do as nice of job as the prowave while sounding a little different.I was using different torches also,and cups.I also have a 305g that has lift arc,and it's a little different too,but I have not really welded much with it,or the powermig.They are all great,and all a little bit different.I like them all. that's kind of all I can tell you until I get more time with them.I love my Powermig 300.You are right on the mig steel welding it's great.You need to try some mig aluminum also,This thing is the real deal in what it can do.Got to go now,and try my new python drive rolls,and wire setup.I am into making tig looking welds in thin aluminum.I also love beating them with a hammer,It's too cool.Also it is not a real inverter it's lincolns chopper tech,and is like a poor mans inverter.So the dc tig will never be as smooth as a real inverter,but good enough.