Re: Toroid Building, something new?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Robert Hanford" <pomnept@xxxxxxxxxxx>

This summer, my son broke his ankle. A fiberglass cast was fashioned 
in almost no time. I was of course occupied with my son but I think 
there was a process where they wet it and then just waited a short 
time 'til it hardened. After a brief look thru some internet medical 
supply places it looks like you can buy a big roll of this for about 
$75. I've been thinking this would be very efficient in toroid 
construction. Has anyone tried it?
Robert Hanford
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, August 19, 2005 9:55 AM
Subject: Toroid Building


> 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.