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I did some practice... lap joints. I kept the stickout to a minimum and used the cup as a guide for me to keep a consistent arc length.

I felt like I had some undercut so I...

My machine is DC only so I can't really do much about AC balance. You don't weld in AC when welding steel anyhow. Maybe I can control penetration by varying how steep I grind the tungsten?

I...

I tried having a shorter arc, but I don't really know how short so I make it as close as I can, but I am dipping the tungsten into the puddle all the time, and also if it's too close (close enough...

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This is some practice I did on a stainless steel fork. Where the filler rod is used the bead is grey but if I did a fusion weld then it looks a little better. I used about 100 amps...

I don't think it's amperage... I mean the tungsten is 3/32 which is good up to 200 amps (I think).

I sealed the junction between the cup and the torch with electrical tape, it's a temporary fix...

A little off topic, but I see a lot of youtube videos and pictures of welds with stainless and they are shiny. Did they clean them up or were they that way?

Even on a good weld I do with stainless...

There's lots of good welding machines in China too. I bought a DC only TIG with pulse control, and it costs like 2000RMB, and shipping was maybe 200RMB to Taiwan. In Taiwan they sell the same welder...

I'm not even sure why they're so stingy about PPE. A decent auto darkening (which is more than enough for TIG and stick welding) costs like 10 dollars. My Chinese TIG welder came with one, it's...

I would never do this by the way...

In Taiwan I have seen so many construction sites where the worker is stick welding, not wearing any kind of PPE, masks, and maybe a rubber glove. They would...

You know I never heard anyone stick welding bandsaw blades together... anyone tried that?

A little thing I like to add...

I have been trying to weld bimetal blades with an oxyacetylene torch. I practiced on a broken blade that I've cut into sections.

One problem I have with standard...

Ok, I think I'm getting the hang of this.

I got some fairly thick steel, probably almost 1/4" thick and I couldn't weld it even with the biggest tip (the 150) I got. I think according to the chart...

Yea, that was my problem, set the oxygen at 60psi and was wondering why 1. was going through oxygen VERY fast, and 2. was blowing holes even in thick metal rods...

I learned my lesson there......

Thanks for clearing up the confusion.

So looks like I should be barely using oxygen when welding/brazing, and using oxygen basically at the same rate as acetylene... meaning cylinders should last...

One more thing, is there a chart on orifice diameter for torch tips, and what psi should I set the gases to?

In the whole process of learning I am burning through oxygen like crazy. I am using a 5...

Yea I tried to weld bandsaw blades... I kept burning holes through the band (it was practice on a dull blade). So I tried brazing and it worked beautifully, though the flux took higher heat than I...

I changed the tip. I also found a cheap auto darkening welding goggle but when it darkens it was too dark for me to see anything (at the light setting, 3, it was actually good enough to kill the...

Hole size is about .035 (maybe a little larger, the wire I measured goes in easily).

The torch has adjustments for oxygen and acetylene, the knob for acetylene is hidden behind the torch.

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So on the torch pic the one on top is a welding torch, and the one in the bottom is a cutting torch, both made in Japan I believe.

The cutting torch does not have a lever to...

it was a 1.5 mm thick piece of scrap steel

Tried that, it ends up making the steel heat up slower, so it doesn't work.

I'm sure it's pure acetylene. It says so on the bottle. But then gas welding seems to have fallen out of fashion because people prefer TIG these days.

Plus I was able to make some good welds, it's...

Torch tip size here is not the same as the US.

In Taiwan torch tip size is 50, 75, 100, 150, 175, 200, etc., not 000, 00, 0, 1, 2, 3, etc.

I do not know how that translates but I was given 150...

I just got myself an oxy acetylene torch setup.

I have been trying to weld but for some reason I can't get a weld puddle started. As in by the time I get to the point where there is a puddle the...

I've seen someone sell a gasoline blowtorch... claiming it's a lot cheaper to maintain than acetylene. Any dangers to gasoline torch?