Re: Another improved propeller gap

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

Original poster: "Christopher Boden by way of Terry Fritz <teslalist-at-qwest-dot-net>" <chrisboden-at-hotmail-dot-com>

You can also get sheets of Kevlar in two other sources cheap/free :)

Riders's Hobby Shop (and many others) sell Kevlar fabric for a cutting surface.

Used (fired) Automotive Airbags, I'm not 100% sure they're Kevlar, but I 
belive they are, and if it isn't Kevlar, it's sure tougher than any other 
fabric I've ever worked with and WILL contain explosions within 
reason.....things like.....exploding capacitors for example :)

Yes, I've tested this theory....several times....it's fun :)



Christopher "Duck" Boden Geek#1
President / C.E.O. / Alpha Geek
The Geek Group
www.thegeekgroup-dot-org
Because the Geek shall inherit the Earth!

Never doubt that a small group of thoughtful, committed citizens can change 
the world. Indeed, it's the only thing that ever has.


The ability to learn is older - as it is also more widespread - than is the 
ability to teach.
     - Both from Margaret Mead, 1901 - 1978





>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: Another improved propeller gap
>Date: Fri, 31 Jan 2003 15:47:27 -0700
>
>Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>
>
>Just a note:
>
>McMaster Carr sells Kevlar fabric pretty cheap and easy.
>
>http://www.mcmaster-dot-com/param/asp/desc.asp?desc=Fabric%20Kevlar&descid=12055
>
>That may be a nice nonconductive light weight shield.  I have never tried 
>or worked with Kevlar, but it may be a cool thing to use for parts flying 
>off high speed gaps.
>
>Cheers,
>
>         Terry
>
>
>At 10:01 PM 1/31/2003 +0000, you wrote:
>>Hi guys
>>
>>I recently finished building the rotor for my ASRG. Due to a bunch of 
>>different reasons I decided to go with a small rotor that spun very fast. 
>>The finished item was about 3.5" in diameter and runs at least 12000 rpm. 
>>I was inspired by the propeller gap that Terry Blake made, so my design 
>>also has prong-like electrodes sticking out of a hub. Unlike the 
>>original, though, the electrodes are bolted in place. I put some pictures 
>>online, at
>>
>>http://homepages.strath.ac.uk/~cnbp111/tcpropeller.html
>>
>>if anyone is interested. I balanced it as well as I could and it's 
>>getting tested tomorrow. My plan is to stick it inside a steel pot, hide 
>>under the workbench, crank the motor up to 240 volts, and see if anything 
>>gives.
>>
>>Steve C.


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