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I know I have made comment before and you brushed me, but when I see people carrying on about "stacked dimes" etc and the welds are far from great it gets under my skin. I am not here to flame you but to give you some tips that WILL make your welding better. I do admire you for having a go, tig welding is not easy.
So the things I see that could be improved, take them or leave them.
1. Stich welds are better than a long run, drill holes every 2" or so and weld up to the holes, one day this will prevent a failure, its smart engineering to assume the worst case scenario.
2. It looks like there is still some anodising on the outer sections, I see you have cleaned mechanically which does a decent job but a bath in caustic soda (oven cleaner) would help even further, it will actually eat in and remove the anodising completely.
3. Use more negative in your AC current, this will clean as you weld resulting in nice shiny welds without the black impurity that you are getting.
4. Ease up with the filler. You are jamming too much in and it is cooling too fast when it hits which gives the uneven look of each dime stack as you call it. A little less filler put in a little later than you are doing now will result in a much neater looking weld. I like to see what I call the "pac man" (definately not a technical term lol) before I dab the filler. It looks like a backwards C shape. The edges are melting and overtaking the middle, when you see this give it some filler, but dont jam it in, let the weld pool take what it wants from your rod. This will give you nice flat perfectly even beads and produce a much nicer looking weld.

Please dont take offence.

Production is under way. Scheduled release date is Feb 22, 2012. Meanwhile, I'll be working on the next generation Triads, light pins, crampons, and hard boot binding setup.