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Whizkidkyus
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So in the spirit of the harbor freight modding thread, I got inspired / motivated to try it with my flux core 80, especially since this is now my backup machine.
Insteald of buying new parts, I decided to try and use various random parts I have laying around. Dont ask why I have hundreds of capacitors, I dont really have a good reason lol.
Anyways, my first attempt was to just add 3 capacitors and see how the arc quality changed, Unfortunately I only got a ~30 second test with wirespeed that was about triple what it was before adding the caps... so not a good test at all... I also found the wire I uses was VERY small for the current in question. I thought ~8 inches of 14 guage stranded wire would not be an issue in such a low power unit, with only 3 caps, but It was small enough that the heating got the insulation tacky hot with 30 second test weld onto some scrap exhaust tubing.
Phase two will be bigger wire, and adding a few diodes in series with the wire feed motor in order to drop .7v per diode in the hopes of slowing the wirespeed back down to a usable range... I might go for a phase 3 and bump it up to 6 caps depensing on how the arc 'feels'
full size images: http://picasaweb.google.com/jdchmiel...eat=directlink