Re: professional-looking toroids... home-brew of course:)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Tesla729-at-cs-dot-com>

In a message dated 12/20/00 5:45:48 AM Pacific Standard Time, 
tesla-at-pupman-dot-com writes:

<< 3. (the way i'm gonna do mine) A AL duct is filled with a filler material
 (fiberglass insulation in this case), then sealed as if it were ready to be
 used, then injected with a slow-cure epoxy resin at several site by means of
 a hypodermic syringe. Once the interior was saturated with epoxy and cured,
 the aluminum duct can be pealed off and the fiberglass toroid can be sanded
 smooth as glass and coated once again with epoxy to ensure a surface free of
 bumps... After a coat of AL tape rubbed smooth by a spoon, you have the next
 best thing to a sup toroid- IMHO
 
 The third method seems the most plausible to me, but it's a bit
 labor-intensive. I'll try this on a 8"X20" toroid after Christmas, and we'll
 see how well it looks...
 Any comments?
 
 
 -Mike  >>

Hi Mike,

I emailed D&M and asked them how these things were made. Your
guess #3 is the correct assumption. They are simply spun fiber glass
toroids that are coated with alum. tape and then smoothed down.

David Rieben