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RE: Plans for RSG
---------- Forwarded message ----------
Date: Sun, 28 Sep 1997 19:26:44 -0500
From: Chuck Curran <ccurran-at-execpc-dot-com>
To: 'Tesla List' <tesla-at-pupman-dot-com>
Subject: RE: Plans for RSG
Rob:
I'll do my best to forward to you a digitized view of my rotary-as soon as
I get it digitized. My memory played a trick on me and all I had available
in my photo file was the vacuum stationary gap. I have taken eight new
photo's yesterday and I should have them back by Monday night. I'll get
them digitized at work and have them available by Wednesday. I already
have a couple of shots that show the rotary 90% complete but I never had
them digitized. Between the new and the old photo's it should provide an
idea or two for you.
I started out using 1/8" tungsten in the stationary but I now am using
3/16" diameter rod. The 1/8" just could not handle the higher power levels
delivered by a pole pig. I used 3/8" stainless acorn nuts on a stub length
of threaded rod. An acorn nut was on both sides of the G10 disk, in twelve
locations on my first design, now I use six. These are really not a very
good choice based on comments I have read, first from a material standpoint
and next from their diameter, which compromises dwell time. Even with this
setup, it sure seems to work well. If I have time this winter, I may try
to machine some brass slugs about 1" long by 7/16" diameter with a 3/16"
through hole for tungsten inserts. The brass would be pressed into the
G10. I believe this technique has been used for years by Dr. Resonance
with great success (the pressing). That is really the idea I would
consider if I had to do it over from scratch. My gap results in simply two
breaks, not twelve like yours. The stationary contacts are mounted one on
either side of the disc coaxial with each other at the same diameter as the
rotating electrodes. I'm not aware of what type of capacitor you will
employ in your system, but I would suggest staying in a PPS range of
300-450 max, unless you are braver than I. My present understanding is
that the capacitor stress level does increase as the PPS increases, ah,
towards failure. I have been having good luck so far and lately I've been
running my caps at 385 PPS. One is a Condenser Products .025 mfd -at- 20,000
VAC and the other is a Plastic Capacitors .05 mfd -at- 30,000 VAC-both are
alive and well!
-----Original Message-----
From: Tesla List [SMTP:tesla-at-pupman-dot-com]
Sent: Sunday, September 28, 1997 3:38 PM
To: tesla-at-pupman-dot-com
Subject: Plans for RSG
---------- Forwarded message ----------
Date: Sun, 28 Sep 1997 14:24:49 -0600 (MDT)
From: Chip Atkinson <chip-at-pupman-dot-com>
To: tesla-at-pupman-dot-com
Subject: Plans for RSG
From: braino-at-mindspring-dot-com[SMTP:braino-at-mindspring-dot-com]
Sent: Thursday, September 25, 1997 5:25 AM
To: Tesla List
Subject: Re: Plans for RSG
Chuck wrote:
>I would be able to supply you with some autocad prints on the rotary gap
>that I have made. ...I'll send a photo directly to you, so you can get an
>idea >as to what I am trying to describe! If there's any interest. Let me
>know.
>
I would love a photograph of your design.
I am currently working on my RSG.
Sounds similar...
I am running a 12" G10 1/2" thick disk.
My electrode design was adapted from a design on one of Richard Hull's
tapes.
I have twelve rotating, and twelve stationary electrodes.
Every other rotating electrode is electricly connected, and the stationary
electrodes are linked so as to provide 12 series gaps.
The rotor speed is variable from 0-3500 rpm, giving variable break rates
from 0-700 bps.
I am hoping this design will provide for mutli-application use.
I am using 1/8" tungsten for the stationary electrodes, and was planning on
steel acorns on the disk. I have not figured out a good way to hold the
tungten rod in the disk, as it is not threaded, thus needing set-screws,
subject to vibrating loose....(some sort of holder that would be safe at
these speeds, any input?)
.rob del bueno.