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Re: Strong Rotor Material???
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- Subject: Re: Strong Rotor Material???
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Thu, 06 Jan 2005 22:38:03 -0700
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Original poster: "S&JY" <youngsters@xxxxxxxxxxxxxxx>
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.
----- Original Message -----
From: "Tesla list" <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
> 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
> 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
> 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