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FW: Toroid Design Features [spun]
From: Bert Hickman[SMTP:bert.hickman-at-aquila-dot-com]
Reply To: bert.hickman-at-aquila-dot-com
Sent: Friday, November 14, 1997 1:36 AM
To: Tesla List
Subject: Re: Toroid Design Features
Tesla List wrote:
>
> From: Gomez [SMTP:gomez-at-netherworld-dot-com]
> Sent: Thursday, November 13, 1997 8:50 AM
> To: Tesla List
> Subject: Re: Toroid Design Features
>
> Okay folks, I'm going to stick my neck out and make an offer. I don't know if
> it will turn out to be cheap enough for others to afford, but here goes.
>
> I build Tesla coils for a living. (well actually, I used to, but I changed
> jobs, and now I consult for the original company- I do the design work,
> they do the grunt work, I get royalties)
>
> Anyway, for our large Tesla coil, we have just had spinning forms for a
> 24" x 6" toroid made. I wish now it had been a 30" x 8" or even (maybe) a
> 30" x 10" form, but hindsight is 20-20, eh?
>
> I haven't got the final quote on the spun article, plus the cost of welding the
> two halves together and sanding the weld bead, but I expect it to come in
> under $200. This beats hell out of the $700+ that Ross Engineering wants
> for their finished toroids. Would anyone be interested in some toroids near
> this price? BTW, they are _0.080_inch_aluminum_, that's right, eighty
> thousandths, so they are rugged as hell. You needn't worry about denting
> your beautiful toroid unless you drop it from a roof-top.
>
> Also, we have the forms for some not-quite perfect toroids (the
> cross-section of the ring is slightly flat on the top, bottom, and sides, but
> is well- rounded). These are 16"x4". I am considering asking the spinner
> to turn down the tool slightly to make the ring perfectly round, if he can do
> that without sending the form back to the tool-maker. And if he's willing
> to do it. That tool was made for another customer, although the customer
> probably will never need it again. I get these spun and welded (usually in
> quantities of ten or more) for around $125. We use them on our smaller
> TC product.
>
> -Gomez
>
> --
> Gomez: certifiable mad scientist, extreme fetishist, fiction dabbler,
> pyrophiliac, technomage, goth, faan, lighting designer, dominant
> pervert, and juggler of labels... http://www-dot-netherworld-dot-com/~gomez
Gomez,
Thanks for the offer - at that price, the spun toroids begin to look
rather attractive! Please keep us posted on your progress! I'm
definately interested in the larger ones...
-- Bert --