Got myself a new tool for the garages, the excuse is...since I'll be moving into some sheet metal work and is what is best (according to all the "experts"), at least that is what I used to justify it to Regina...

Picked up the Miller Diversion 180 TIG welder. I kept getting assaulted on a regular basis from Eastwood, promoting their TIG welder for ~35% of the Miller retail. Using the same logic and justification as when I bought my Miller MIG welder, don't cheap out on the big ticket tools.
I bought the MIG from the local National Gas Co (in Raleigh, on Capital), just as I did last time, asked if they'd work with me on price compared to internets sites. He did, coming within $100 of the internet prices (~$1700-1750), just under $1800, off the $2225 msrp. Had to get the bottle and some consumables to get started but both times, they did work with me on price both times.
I ponied up for the 180 since it can be used with both 120v or 240v AC for the input with the switch of the input plug. It also comes with the foot control which the Diversion 165 doesn't. It also has the digital readout. Really easy to use since all the parameters are preset by the factory, taking away a bunch of the set up with most TIG welders.
So, now I really have to learn how to weld. I thought learning the MIG wasn't too difficult once I learned to keep track of my settings in various types/thickness of the steel so I can repeat the welds.
With this machine, I pick the material, aluminum (AC) or steel/stainless/CroMo (DC), look at the chart for the thickness, adjust the amperage into the range as advised by the chart on the front of the machine. And away we go.
I'm building one of the "tv-tools" I thought was a good idea during one of the SpikeTV Sat/Sun morning shows (I think it was HorsePower TV) where the guy built an "axle stand/dolly". What a great way to practice using the TIG welder.
I ran a few beads across some scrap 1/4" steel and welded some misc scrap together but these are my first real attempts at welds. In the axle dolly, they use 1/8" x 1" flat stock bent into this Z and welded together as the axle stand. Here is the progression as I went along, being lazy, no prep work was done on the metal, it was welded as is from my local Ace Hardware...
1st...I forgot to allow the post-flow to stay on the weld. My habit with the MIG was to just move the nozzle away when done with the weld. It is clear with this weld I got the porosity at the end of the bead due to the lack of shield gas...
2nd...same thing, not as bad because I remembered, after I initially forgot, going back with the shield gas as it cooled...
3rd...getting it figured out. The metal isn't clean and it shows in the end of the bead. But, nice and flat, a little wobbly but getting better for sure.
Sure like using the TIG, I can see the puddle so much better as well as the arc. Its a nice, straight arc, I can see where it gets the puddle started and work it along the joint, very cool. Also, no sparks/little molten metal balls flying everywhere. Much slower than I'm used to with the MIG and the settings I use, allowing much more precision.
I also bought some of aluminum pieces just to play with, one of the main reasons I wanted to get into the TIG. I wonder what one could come up with using a tubing bender, some nice 1" aluminum tubing and a TIG welder...
