Thanks! I'm pretty sure I have the torch assembled correctly, but will check it again. Will find the polishing wheels you recommend. After the flap disk the surface seems clean, but it really is too rough to wipe properly with acetone. And, maybe the new flow meter will make a difference. You guys h...

Here is the regulator. The outlet pressure drifts up when no gas is being used which makes me wonder about it. I used to work in research labs and the regulators would hold their pressure setting. They probably were much more expensive than this one though. PXL_20201026_163848971.jpg Also, the torch...

OK. You asked for it! This is a little embarrassing, but maybe I will be able to post improved pictures soon. Thanks for your comments and suggestions. The gas is definitely pure argon; I am working on my second cylinder. Maybe the flow rate is way off. Lincoln's regulator is not one of the most ins...

Hi, I am new to TIG and starting with mild steel. I've been at it for three weeks and can't get past a contamination problem. My welds develop a brown or black residue and sparks fly out of it towards my helmet. The tungsten needs re-grinding every few minutes. There are pinholes in the weld. I have...