Hello all. I just wanted to introduce myself to your wonderful welding forum. My name is Brad, I am from Home, Pa. I work building mobile water treatment plants that fit inside single axle box trucks. Welding and fabrication is a hobby of mine but I would one day like to make welding, or both, a career. I love working with my hands and building stuff out of metal. I am soon looking to purchase myself both a TIG/Stick Inverter machine, along with a plasma cutter. Due to my lack of funds I will most likely be purchasing a PowerPro 256 instead of purchasing multiple machines. I would much rather get a PowerTig 250EX and a PowerPlasma 60 but I think the all-in-one machine will suit me fine. Currently I own an older 120v Hobart Handler MIG welder which has kept me welding for the last 5 years. I also built myself a scratch-start TIG welder with a 90A Chrysler alternator, a 220v 1 1/2HP air compressor motor, and a battery charger to power the field coils. I have a rheostat wired between the charger and the alternator to provide me with a Max Amperage control and I also have an A/C rheostat pedal wired between the wall outlet and the battery charger to vary the field current thus also varying the output current. At the time of building it I couldn't even afford a TIG torch so I went ahead and built my own torch as well. It was all a great learning experience and it has allowed me to get a feel for TIG welding when I wasn't able to afford a proper machine.
I'm sorry this is terribly long and most of you have probably bailed already but I do have a few pictures of a practice weld I did tonight on 2 pieces of 1/4" plate set up in a 90* corner joint. This weld was made in 2 passes, 1 root pass with decent penetration and 1 cover pass over top of that. The plates are made of mild steel and unfortunately I didn't have any mild steel rods so I used some 1/16" stainless tie-wire I had laying around as filler. It's not meant to hold anything so don't worry about that, it was just a practice bead. It did pass the BFH test though. Anyways, on to the pictures. I only took pictures after the cover pass was laid down, I forgot to take a picture of the root pass. This was done in a horizontal position too by the way.
This was done at about 60-70A(I really have no way of telling.) with an 1/8" 2% Thoriated Tungsten(All I have availible). Argon as the shielding gas.
Link: Backside of weld.
Link: Top/Outside of weld.
The scuff in the very center is from where I bashed it a few times with a hammer. It didn't bend any that I could measure. Please critique away, but keep in mind I only have about 15minutes total seat time with a TIG welder and all of it has been with my alternator unit.