Re: Initial design of SRSG - 3D Model

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <kreld-at-juno-dot-com>

Dan

  On my smaller rotories, I use fiberglass disks with conductive outer
rings made from heavyduty aluminum foil.  The foil & disk have 3M spray
contact adhiesive applied to both, then pressed firmly together.  I have
yet to have any come apart even at 3600 RPM.  Weather aluminum or copper
rings, at low power levels I doubt you will see any losses in spark
length.

 Under several kW, you don't have to use tungsten electrodes, machine
screws in the range from #6 to #10 will work well.  Just drill the
appropriate size hole in the disk & conductor ring, then install a screw
& nut... it's just that easy.

 Of coarse if you will be running a Tesla Coil day in, day out, tungsten
would be a better choice in terms of wear.  Still, screws are cheap &
last a long time.

Kevin E.

>
>No analyses, but several people had made their comment based on 
>experience
>which I trust is good experience.
>
>Anyways, if I did pursue the conductive ring (since the motor shaft 
>in
>inherently short):
>
>1.  How would one attach the conductive ring to the rotor.
>
>2.  How would one fasten the tungsten electrodes to the conductive 
>ring.
>
>Thanks again.
>
>Dan
>
>
>