Re: Rubber toroids
---------- Forwarded message ----------
Date: Wed, 15 Oct 1997 11:45:46 -0400
From: Kevin Christiansen <kevin+-at-cs.cmu.edu>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Rubber toroids
At 11:57 AM 10/12/97 -0600, you wrote:
>It works! When I was no longer able to find spun sheet iron globes to
>use for Van De Graffs and Tesla coil terminals, I started
>experimenting with various manufacturing techniques and ended up with
>using paper mache and then spraying it with Aqua-Dag spray ( a
>conductive graphite based paint used in the T.V. industry to create
>ground plains in cabinets ect.) then plating the entire surface using
>a foam brush connected to oe terminal of the power supply and the
>other terminal being connected to the Aqua-Dag surface periodicaly
>soaking up some plating soloution onto the foam brush. Using this
>technique I hae so far manufactured a 6 foot sphere for my last Van
>De Graff generator and a 48 inch x 12 inch toroid for one of my
>Tesla coils. Using this method I hae no doubt in my ability to make a
>conductive surface of ANY size or shape I so desire!
> \\ ~ ~ //
> ( -at- -at- )
> Alfred A. Skrocki
> .ooo0 0ooo.
> -----( )---( )-----
> \ ( ) /
> \_) (_/
Thanks for such an informative post! I am glad that such things are possible.
Is Aquadag something you purchase or something you make? If you make it, what's
the recipe? Can it be done with conductive lampblack (which I just happen to
Also, what's the recipe for this plating solution that you are using?
Thank you very much!
Kevin D Christiansen
Human Computer Interaction Institute - Carnegie Mellon University
"The universe is composed of space, galaxies, and intergalactic
dust. Galaxies themselves are composed of space, stars, and
interstellar dust. From the omnipresence of dust, we conclude
that nature abhors a vacuum and won't pick up a broom, either."