wright1902glider wrote:
Just wondering what the general consensus is on the best method of
welding 4130 tube structures. Advantages / disadvantages of each
considering I will be building in an attached garage, in a residential
subdivision, and will be limited to a 110AC/ 20 amp service?

Is an off-the-shelf MIG unit like a small Lincoln or Hobart worth the
money? Anyone have any experience with these machines?

I don't have to weld anything right now, but I'm considering taking a
few classes.

Thanks,
Harry

The Hobart 120 (older unit) I have had for years has welded for me many
trailers up to and including 5th wheel equipment trailers at 16000 lbs
gross wt. 1 flat bed truck body to carry my track hoe, and 1 well
cleaning machine which has a 28 foot telescoping crane. I forgot to add
my Sonerai II fuselage tubing. Runs on 120 volt 20 amp circuit. welds
1/4" in 1 pass and up to 1/2" with multiple passes.
For the 4130 tubing I use .023 solid wire and c25 gas mix (25%Co2 and
75% Argon). These welders are great. YMMV

Rocky