Re: Cutting torroidal cores

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

Original poster: "Ed Phillips by way of Terry Fritz <teslalist-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
 >
 > Original poster: "Ben McMillen by way of Terry Fritz 
<teslalist-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>
 >
 > Thanks to all for the posts so far.. ;)
 >
 > As for the wide gap, these cores are going to be used as
 > c-core electromagnets in a machine known as a homopolar
 > generator. Not necessarily tesla coil related, but I
 > figured that this was the best place to find out how to
 > make the cut. It's part of an independent project that I'm
 > working on with a friend (and possibly a senior project ;)
 > ) We hope to be able to use it to power a rail gun.. :-D
 >
 > Coiling In Pittsburgh
 > Ben McMillen

	The 1/2" gap seems excessive for this application, unless you are using
mighty thick rotors.  How much power do you hope to generate, and what
prime mover are you going to use?  Have you looked at Tesla's design
patent for a very clever two-rotor HP generator?  Minimizes brush
friction for the outer edge of the rotor.  If not, I suggest you look it
up (don't have the patent # in my brain) and consider giving it a try.

Ed