Re: glass laminate - Bah, Humbug...

        Re: glass laminate - Bah, Humbug...
        Mon, 7 Apr 1997 19:41:44 -0400 (EDT)
        richard hull <rhull-at-richmond.infi-dot-net>
        Tesla List <tesla-at-pupman-dot-com>

At 07:11 AM 4/5/97 -0600, you wrote:
>           Re: glass laminate - Bah, Humbug...
>      Date: 
>           Fri, 04 Apr 1997 21:19:40 -0800
>      From: 
>           Greg Leyh <lod-at-pacbell-dot-net>
>        To: 
>           Tesla List <tesla-at-pupman-dot-com>
>           1
>"Daryl P. Dacko" wrote:
>> I'm thinking about trying a 'hot' rotor design, using a ten inch
>> in diameter, one inch thick aluminum plate, mounted on bearings
>> attached to some one inch thick lexan supports.
>> I'm planning to use some thick walled rubber hose with a plastic
>> rod in the center as an insulated flexable coupling.
>> Does anyone have any experience with this type of design ?
>I have been using aluminum rotors on aluminum hubs on a phenolic 
>shaft for quite some time now, with no problems.  The axial
>voltage stress down the shaft is about 3kV/in.  The shaft surface
>is ribbed like an insulator, in order to resist surface flashover.
>The bearing supports are phenolic plate, as well.

I ran a hot rotor on Nemesis in the early 90's and never had any
I used all metal and pillow block bearings, metal shaft etc.  I used a v
belt off of the metal pulley to a metal pulley on the motor and then
isolated all on an insulated mount stand.  I used a DC motor and an
isolation xfrmer at the gap.  This is really cutting the death quotient
close.  I had no problems over the 3 years of Nemesis' life span.

Richard Hull, TCBOR