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RE: Strong Rotor Material???

Original poster: "david baehr" <dfb25@xxxxxxxxxxx>

I have used 3/8" Lexan with no problems , but I was only running 'bout 5000RPMs....

>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Strong Rotor Material???
>Date: Thu, 06 Jan 2005 18:17:19 -0700
>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
>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
>The material needs to be strong enough to turn 7500 RPM's without
>This is NOT going to be a spark gap rotor. The rotor will be used
>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
>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