RE: Strong Rotor Material???

["Tesla list" <tesla@xxxxxxxxxx>]

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
>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
>
>