in my previous job, I learned how to weld with a gas MIG welder, and did quite a few projects with them (some being load bearing carts with load ratings in 1000s of lbs in glass) not offcial training, no certification, but I was sure fo the welds i made.
my primary hobby is model rocketry, NOT welding. try to keep this in mind for the following.....
we are getting into hybrid engines that use liquid nitrous oxide. shopping around for nox has found that the cheapest setup is a 200lb tank. one of the other projects we want is a large launch pad that would be towed on a trailer.
another rocket club is upgrading to a different trailer, and has offered their old one to us. it is a converted pop up camper that they gutted and used to store their launch gear in.
a distant friend of mine gave me an arc welder. a bit more on that later, but i got it for free.
ok, so I will be getting a trailer that i can convert to a large launch tower trailer, plus i need a way to transport a 200lb nox tank, plus i know how to weld with MIG. also i'd rather spend money on rocket gear than welding gear.
so, I'd like to weld a rack to hold the nox tank to the trailer, plus do the welding for the launch rail assemblies that will be worked up, plus maybe a framework or two for strorage cabinets.
my father has an arc welder, but he does not have welding for a hobby either. but he gives me some tips and concludes the welder should do the work i need of it.
So i crank up that freebie arc welder i got. it is a montgomery ward 120V
110A stick welder that must have been the cheapest welder ever sold. the ground and electrode clamps were made out of real cheap battery clamps, which had rusted out over time. I grabbed my dads old helmet, got some gloves and some 6011 rod and tried to burn some holes in an old box spring angle i had.lots of sparks, but no sustainable arc.
I figgured this was because of poor connections, bad clamps, rusty metal, and all other sorts of nusiances. so next paychek i grabbed myself a cheap angle grinder(needed one anyway) a 200amp ground clamp and 200amp electrode holder (cheapest i could find, still good quality i think)
so, i get things set up, get me a good connection, and try to draw some beads in the limited time i had left. still couldnt get anything to work great, but with much frustration i did get a bead 1 inch long with lots of snot and spatter nearby.
so a few simple questions.
what should i use to build the rack with? I was thinking 2x2x1/8 angle. the reason i ask this question first is.......
will this welder handle the material i want to use?
I have two months before the trailer arives. I dont think i can get a class in time, what do you suggest i do to improve my skills?
should i stick with this, or try to find a rentable gas MIG *OR* farm this out to a shop *OR* find a rentable fluxcore and try that. money is tight.
When i was welding at my previous job, I was accused of making my welds too strong. I'd rather have my welds too strong instead of getting someone hurt, and this goes double for a gas bottle that is going to be traveling the roads on atrailer that will get next to zero in maintenance(ideally)
looking for any and all suggestions, I got two months to decide. will probably play with this arc welder anyway, as i got rods for it and it does apear to work right.