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Re: Strong Rotor Material???

Original poster: "S&JY" <youngsters@xxxxxxxxxxxxxxx>


Gary,
McMaster Carr sells GP03 electrical grade fiberglass that works great for
rotors.  www.mcmaster.com.  Recommend 3/8 inch thickness.  A 12 x 12 piece
of this only costs about $13.  Part # is 8549K47.  Be sure to have enough
space between hub and your electrodes so there is no way sparks can jump
between them.  I would say you need at least a 5 inch diameter rotor.
--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, January 06, 2005 6:17 PM
Subject: Strong Rotor Material???


> Original poster: "Gary Weaver" <gary350@xxxxxxxxxxxxx>
>
> Where can I buy some strong rotor material.  My rotor  is going to be 5
> inch diameter maximum maybe only 4 inch diameter with 1 sheet metal
> contacts held on with small bolts.  The rotor will be bolted to a 2 inch
> diameter metal hub turned by a motor.  There will be a 2 inch diameter
hole
> in the rotor material with eight 1/4" x 28 bolts holding it to the hub.
> The material needs to be strong enough to turn 7500 RPM's without self
> destructing.
>
> This is NOT going to be a spark gap rotor.  The rotor will be used to
> direct sparks to 4 different places.   I worry about having a fire ring or
> spark ring around the rotor.  I have seen rotors that produces a
continuous
> circle of sparks that shorts out all the contacts.   I thought about using
> the distributor from a car engine but I think the voltage will be too high
> for that and would jump across all the contacts on the inside of the
> distributor cap.
>
> Gary Weaver
>
>
>
>