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Re: Toroid Building

Original poster: Yurtle Turtle <yurtle_t@xxxxxxxxx>

Sounds kinda brittle (and heavy). I used drywall
compound for a smaller one and it worked out fine, but
I'm not so sure how it will work on a large scale. Why
not just try it with the corregations first? How about
Bondo? Works well, sands smooth, and is very durable.

Adam

--- Tesla list <tesla@xxxxxxxxxx> wrote:

> Original poster: "Gerry  Reynolds"
> <gerryreynolds@xxxxxxxxxxxxx>
>
> Hi All,
>
> I'm in the process of making a 8x32 inch toroid
> using the heavy
> ducting from McMaster-Carr
>
> I have the toroid formed (ends attached) and I plan
> to mount an AL
> disc in the center with a little RTV.  I want to
> fill the
> corrigations with something that can be easily
> sanded to make
> smooth.  I am planning on using PLASTER_of_PARIS for
> this purpose
> (done after the center disc is mounted for
> rigidity).  After sanding
> smooth, I plan on sealing the plaster with a varnish
> and then adding
> AL tape starting and terminating on the AL disc.
>
> Does anyone see a problem with using the plaster??
> Grout is maybe
> another choice for a filler. Ideas welcomed.
>
> Gerry R.
>
>
>




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