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Re: [TCML] RSG disks - who can make them ?





A great idea is to support your rotor on "pillow blocks" which allow you to use different dia pulleys on the drive belt to experiment with different speeds. I find around 400 - 500 pps works great with pole xmfrs. Higher pps work too but the spark are not as fat and thick even with a large pole xmfr providing 800 mA to 1200 mA drive at 14.4 kV.

Dr. Resonance

Resonance Research Corp.
www.resonanceresearch.com


----- Original Message ----- From: "Lau, Gary" <Gary.Lau@xxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Wednesday, November 21, 2007 8:16 AM
Subject: RE: [TCML] RSG disks - who can make them ?


Hi Chris:

I do not think anyone has really experimented with break rates/dwell times.

I strongly disagree. People who use asynchronous RSG's experiment with various break rates all the time, by simply varying the motor RPM. Higher break rates tend to give hotter, brighter streamers (assuming that the power supply can charge the cap fast enough) simply by delivering more power to the streamers. If the RPM is too low, the dwell time is extended and it's possible to achieve multiple, smaller bangs per presentation - an undesirable thing. As has been previously stated, attempting to accelerate quench by reducing dwell times by increasing RPM is futile, as the spark will stretch following presentation until the gap voltage or current is insufficient, and the gap is good and ready to quench.

Can anyone make (for me) a 24" RSG disc

I'll not try to discourage you too much, as much can be learned even by performing failed experiments. I've also made some large and silly failed attempts at an SRSG, and am wiser for doing so. Please be aware that such a large disk at high speeds has tremendous potential to cause injury, particularly if made of wood!

Regards, Gary Lau
MA, USA

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
Behalf Of Chris Swinson
Sent: Wednesday, November 21, 2007 9:19 AM
To: Tesla Coil Mailing List
Subject: [TCML] RSG disks - who can make them ?

Hi all,

Can anyone make (for me) a 24" RSG disc and drill a range of holes for my
next range of experiments ? My engineering skills are very poor
unfortunately , so wonder if anyone has the technology out there to make
once accurately or know an engineering firm who could make one...

I was also thinking of a small disk with like a cross section of wood such
as...

    |
--O--
    |


( if the ACSII art comes out right)

So I can have holes in the strips to alter the break rate of the electrodes.
It could even be made larger but I think balancing is going to be a right
pain at 3000RPM!

I know most will think it is a waste of time, though I do not think anyone
has really experimented with break rates/dwell times. I would however like
to conduct my own testing and document the results for the list...

Cheers,
Chris

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