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Re: Design tips for ARSG????



Original poster: "bob by way of Terry Fritz <twftesla-at-qwest-dot-net>" <yubba-at-clara-dot-net>

hi Dan,
i built,with a lot of help, a similar gap using a centrifuge motor,and a 
12" x 1/2" g10 disk. I used 8 electrodes 6mm tungsten mounted in  hydraulic 
bulkhead connectors. It has worked flawlessly for about the last two years. 
The construction is similar to Brent Turners design but it is mounted 
vertically rather than the usual horizontally. I must say though that on my 
coil it is no improvement over a static gap :-((  it does sound nice tho 
if  i wind the speed up and down. There are pictures somewhere on the web i 
am sure, don't have any handy at the moment. i must warn  you that it is 
not an easy task, you do need a good machinist and you need to get it 
balanced as well. The person who made my one  has a lot of experience of 
machining composites, he used a milling machine with a rotating table. You 
can use  high speed steel tools if you take it slowly,but it is not 
trivial. Good luck with it. My coil is about 3.5 Kw and i haven't noticed a 
lot of wear on the electrodes.

cheers
bob golding


/02 -0600, you wrote:
>Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><dhmccauley-at-spacecatlighting-dot-com>
>
>Any tips or suggestions on designing a good ARSG????
>
>
>I'm building a heavy duty ARSG right now and wanted to know if anyone here
>at any good design tips on how to build one.
>
>It will be used on tesla coil systems right now at 3kVA up to 10kVA
>eventually.
>
>I'm going to be using a 1/2 HP, 10000RPM Universal Motor (same one Ed
>Wingate uses in his gaps from Grainger)
>and probably going to use a 1/2" thick G-10 rotor.
>
>Any help appreciated.
>
>Thanks
>Dan