I hit my own left index finger knuckle with a big hammer a couple of weeks ago. Right where i'd also hit it with a wood chisel. It's still somewhat sore if I prod it. Seems like that area is the most likely to get hit by stuff! In fact I kept hitting it with that chisel and reopened the cut a few more times till I got the hint. I wonder if those plastic rings you can get for cold chisels to help protect from missed blows are worth it... I could perhaps make something similar from plywood.
Worked on that canister today.

It doesn't look like much but I put a good amount of work into this end cap. I got it fitting just right. Played with the cold chisel a bit more, and i'm not sure if it's just my technique but I felt I could remove material much faster with the half round part of a coarse crosscut file.

Welded. I miss my welding cap and helmet. I lent it to my brother a long time ago and never saw them again, he left them at his old workplace. This handheld visor is pretty rubbish and plenty of spatter landed on top of my head.
Earlier I welded the long seams without the jacket on, just a T-shirt with my arms exposed. I kind of realised what i'd done afterwards but so far i've got no symptoms of arc burn.

The ugliest weld. I went over the lousy first pass at about 120 amps (according to the buzz box) hoping to get some better penetration, but there's still nothing visible on the entire inside of the canister.

The end was equally ugly. I went a bit fast in a few parts (the handheld visor has a very dark shade in it, it's hard to see what's going on even with the arc light) and touched them up.
Time really flied doing all of this. Started at about 10am and it's now almost 4pm. Hopefully i'll have the lid finished by the end of the day. I'm still thinking about what to do, but I think i'll just make two squares and do some plug welds to hold them together, with the inner square (fairly loosely) fitting the inside and the larger square overhanging a bit so I have a corner to shove fireclay into to seal it.
I had a dream last night I was trying to weld in the back of a car. I had nowhere to set the hot metal down so I flung it out the window and started a wildfire. Hopefully it wasn't a premonition!