Re: How's this for safety conciousness?

I actually built one when I was a young'n. I got some good silicon steel out of a scraped out pole transformer, sheared it to size in the high school shop jump shear. (I presume there was no edge left on it after I got done but who knows ) The coils were from a some odd 1920's truck starter/generator (brand unknown, lost in the recesses of time) Inner coil was about 12 ga for the generator, outer was flat band copper for the starter) Simple loop core with 4 coils on each side. Run 2x4 coils to run on 120 volts, 1x8 coils to run on 240 volts. Amperage adjustment was by picking 6, 7, or 8 of the secondary windings. The thing welded acceptably, ran 3/32" and 1/8" rod just fine. Primary windings were a bit skimpy, tended to fry fairly quickly. Had to rewind one after a particularly smelly session.

The 3rd world version had some interesting features: note the paper between each layer of the core; implies they were using something like galvanized *** stock that needed insulating. Or perhaps some sort of natural core saturation principle. But I wonder why they didn't clamp the stacks with some bolts and 4 pieces of 1x2. Sure would cut down on the core buzzing! They also insulated the secondary windings with hand wound paper. I'll bet that was to keep the wires from wearing through the insulation when the core buzzed.

jp2express wrote:
Well, I for one am freakin' impressed! I like it! :)

I've heard of people that built their own machines, and I've often wondered how this is done. Does anybody know of any good websites that show illustrated instructions on how to build a machine? That would be neat to read over.

My guess is these guys are in or near India. Those little guys are smart, but they have no money.

Certainly beats what MacGyver (1985 TV show) made with his battery and a nickel!

"Andrew Mawson" wrote:

Now let's not get carried away with health and safety:

http://www.zen40166.zen.co.uk/image005.jpg

http://www.zen40166.zen.co.uk/image006.jpg

http://www.zen40166.zen.co.uk/image007.jpg


AWEM






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