I spoke to a friend of mine that owns a welding company in Montana and he said to start off with stick. He said if you can weld good with stick (and even better Oxy Ace as well) then other welding processes will be learned much more quickly. He said that learning Oxy Ace would allow me to better learn and understand the weld pool. Anyway, I went to the local community college and took classes in each (I completed the classes a few months back).
That leads me to last week. I bought a new Millermatic 210 as my first MIG. I probably should have taken a class in MIG as well but I figured I became pretty darn proficient with the other two processes that perhaps I can wing it with a book. Besides, my wife put an end to future classes as "you're not spending enough time with the kids"...anyway, it is what it is.
Anyway, I bought my welder last Friday and the following day I ripped a control arm mount from my front axle of my Jeep so now I'm welding frantically a few nights a week running stringers trying to get ready to cut off the remains of the old bracket in preparation for the new bracket. Technically it's not ideal as a first project to weld something that prevents my axle from flying off but hopefully with my experience with other welding processes, a couple of MIG books, and perhaps some input here I can make it work.
So to my question: I originally had purchased .035 wire (a 33# spool). Before opening it I talked myself out of it, returned it, then got .030 as that's what a buddy was using with his 251. The guy at the welding shop said that my welder will probably "like" .035 better on the first spool of wire but may "prefer" .030 on the next spool. I really don't know what that means.
What are your thoughts? With the current project at hand I'm trying to weld (all my projects I forsee in the near future are mild steel with c25 as the gas). My bracket I have to weld on is 3/16th and being welded to an axle tube (I haven't determined the wall thickness of this axle tube yet). Would you use .030 for this? Or .035?
I'm currently questioning my penetration (no wife jokes please ) on my test stringers. My bead shape isn't exactly what I think it should be. I may post some pics... but what are your thoughts on the .030 vs. .035?