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Simpleminded Rotary Questions
Hi all,
Having recently upped my coil power, I would now like to build a rotary. I
am thinking of using a lexan disk with sections of threaded rod for the
traveling electrodes (ends probably filed and rounded). It would also most
likely be a series quench style since I really like this concept.
Stationary electrodes would be tungsten TIG points. Here are some
incredibly basic questions from someone who has never done any
metalworking, or built much involving motors:
1. Would phenolic or G-10 type material be better than Lexan, and if so,
where do you get it and how would you go about cutting a perfect circle.
Are there suppliers that do this? I am pretty sure that the industrial
plastics place I normally get my plexiglass from can make me a nice Lexan
disk.
2. How do you mount the disk on your motor? I looked at my little cirular
to see how it was done, but it has a threaded shaft on the motor. Ok, so I
guess I need some sort of clamp on arbor with a mounting diameter that
matches whichever motor I choose (obviously). Where do you get them, and
what should I ask for in particular? Any nomenclature that I'd need to
describe this would be very helpful!
3. I would like to mount the whole thing on a very heavy base for
stability. I was thinking of getting a big piece of aluminum from the
scrap yard for this, and would use HV standoffs to keep everything clear.
So here's a really basic question: how do you go about making threaded
holes in something like this (tapping)? What's the tool called??
Any help would be greatly appreciated!!!
Charles Brush
p.s. I haven't commented on any of the AVIs posted yet, because I haven't
been able to view them. For some reason my AVI->QT utility crashes my Mac
everytime I try it. I will get this working eventually and am looking
forward to seeing Bert's and everyone else's movies!