[ QUOTE ]
Whatever you get be sure to get a bottle too. It makes welds soooooooooooo much nicer with the inert gas instead of flux core. /forums/images/graemlins/smile.gif
[/ QUOTE ]
It also doesn't penetrate as well.
So far I have only used my welder with flux core wire (but I have MIG welded before also). I welded the 1" thick plates that hold my hydro ram on the axle with it and it penetrated fine. My Bambar was welded onto the axle housing iwth the same welder.
There isn't going to be any noticable difference between the 135 and the 140.....they're the same unit, one is just the updated model. /forums/images/graemlins/waytogo.gif
I'd get yourself the cheaper of the two Hobarts and go. Get a bigger MIG later.
I was so heart-set on getting the 175, but I found this Hobart 135 (well a CK5 member pointed it out to me) for $229 and I couldn't pass it up. I got it, started burning some metal, and honestly, nothing can replace a good 110v wire feed. You can take it anywhere and plug it right in. I've taken it to friend's houses, and used it to fab my bambar, fix my exhaust, weld up a 10 bolt rear axle, install my hydro assist, etc.
I have not yet been limited by my 110 volt machine's capability. Honestly, I'm glad I didn't get the 175. Even my 133 lbs with a bum knee can still drag my little 135 everywhere I need to take it. I have a 100' long #10 extension cord and I can use it in the backyard, the front yard, inside, outside, you name it! I can take it with me to the campsite when I go wheelin' too so everyone in the camp has a welder. At the local 4x4 show, a guy welded the link mount back on his Toyota tuff-truck with my welder, in the parking lot!!!
Big MIG machines are GREAT, but, nothing beats the versitility, and portability, of a 110 v wire feed machine!
Chalk this up as wanted the 175, settled on the 135, and pleased as punch ever since.