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Author Topic: Sm0ky2's modified Voss Machine  (Read 44805 times)

Grumage

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Re: Sm0ky2's modified Voss Machine
« Reply #15 on: January 26, 2017, 02:56:03 PM »
Another might do the trick?

Ah, that's better. I needed a telescope to read my iPad!!  :)

Cheers...... :)

Grumage

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Re: Sm0ky2's modified Voss Machine
« Reply #16 on: January 26, 2017, 03:15:00 PM »
A question for TinselKoala.

What would happen if we were to place a second rotor inboard of the fixed, i.e. A rotor either side?

I assume that the polarity would change?

Kind regards, Graham.

TinselKoala

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Re: Sm0ky2's modified Voss Machine
« Reply #17 on: January 26, 2017, 09:09:41 PM »
A question for TinselKoala.

What would happen if we were to place a second rotor inboard of the fixed, i.e. A rotor either side?

I assume that the polarity would change?

Kind regards, Graham.

Check Antonio's excellent website. He shows many variations of the basic Voss/Toepler type machines.
http://www.coe.ufrj.br/~acmq/voss2.html
He also has some clear explanations of how these machines actually work.

Not double, but I think this one is really cute:
http://www.coe.ufrj.br/~acmq/cyl1.jpg
http://www.coe.ufrj.br/~acmq/cylind.html

And here's an interesting idea:
https://www.kickstarter.com/projects/266345803/sparkit-miniature-electrostatic-generator

Cherryman

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Re: Sm0ky2's modified Voss Machine
« Reply #18 on: January 26, 2017, 09:46:57 PM »

Not double, but I think this one is really cute:
http://www.coe.ufrj.br/~acmq/cyl1.jpg
http://www.coe.ufrj.br/~acmq/cylind.html



Tnx for the Cute one! I'm trying some things along those lines myself, this helps!
 
(edit: Why is this forum always messing up my text sizes, with al kinds of unwanted inserts ?? )

sm0ky2

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Re: Sm0ky2's modified Voss Machine
« Reply #19 on: January 28, 2017, 09:09:37 PM »
Closer distance between disks does increase induction
My build has a large gap to keep my wobbly disk from
scraping the stationary disk.


The disk with two large inductors does not move
I modified this piece from the original design
which had two small rectangular plates
The larger curved plates give me more charge


RPM - yes this is a high-rpm device, the faster it turns
the higher the frequency of the output. It is literally
how many times the rotating plates cross the pick up
brushes per second.


Larger rotating collector plates give more charge at a
lower frequency, while smaller plates give less charge
at a higher frequency.


Whimshurst/Bonetti machines are designed to operate
at a slower RPM.  (Around 30 or so usually).
Although I did have the Voss-Bonetti going at much
higher speeds.




sm0ky2

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Re: Sm0ky2's modified Voss Machine
« Reply #20 on: January 28, 2017, 09:20:39 PM »
@Grumage


Thank you for your post and interest in these machines


As TK mentioned, the induction process works in all kinds
of configurations, including cylindrical devices.


While my build is intended to be simple, for beginners to
Build and test this technology - I have experimented
with and studied others musings about the ideas you
mention.


You can indeed increase the charge on the inductors by
Adding a secondary capacitative plate behind it.
In theory the same could be done on the rotating plate.


Adding a second rotating plate opposite the stationary
inductor, is more beneficial as it results in a doubling of
The collected charge.
This can be extended to a long shaft including many plates
Connecting the output in parallel provides a large current.


There really is no limit to the complexities of these machines
Other than the force required to turn the pieces.

shylo

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Re: Sm0ky2's modified Voss Machine
« Reply #21 on: January 30, 2017, 10:40:49 AM »
Hi Smokey, The reason I was asking is because my rotor will self run for 1/2 hour.
I was hoping to add the 2 plates to the rotor and just put the stationary next to it to collect the charge to help top up my caps , to extend my run time.
Just not sure how to incorporate this with my rotor.
artv

Grumage

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Re: Sm0ky2's modified Voss Machine
« Reply #22 on: January 30, 2017, 05:42:17 PM »
Hi Smokey, The reason I was asking is because my rotor will self run for 1/2 hour.
I was hoping to add the 2 plates to the rotor and just put the stationary next to it to collect the charge to help top up my caps , to extend my run time.
Just not sure how to incorporate this with my rotor.
artv

Dear artv.

Video please !!    :)

We can always fast forward !!   ;)

Cheers Graham.

conradelektro

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Re: Sm0ky2's modified Voss Machine
« Reply #23 on: January 30, 2017, 07:36:39 PM »

Since the topic is electrostatic machines, I want to draw attention to the electrophorus which is the most simple electrostatic machine.

I could find a few little modifications (HV diodes and HV capacitors) which render the electrophorus a little bit more useful:

https://www.youtube.com/watch?v=notE4ugcgvk

https://www.youtube.com/watch?v=jLCp68VX7NE

https://www.youtube.com/watch?v=PzoUiZnR5QA

Note, the little modifications turn the electrophorus into a continuously working electrostatic machine (by moving the top plat up and down a few millimetres) producing a series of positive spikes (lifting to top plate) and then negative spikes (putting the top plate down again). No opening and closing contacts are neccessary (as in the original electrophorus which needs "grounding" of the top plate after every "stroke").

The idea is to eventually come up with a "turning" electrostatic machine which avoids brushes and contacts. Remember, the mother of all electrostatic machines is the electrophorus. All turning electrostatic machines are some sort of "doublers" which add up small charges.

Greetings, Conrad

P.S.: I want to repeat what Tinselkoala has writen, the web site http://www.coe.ufrj.br/~acmq/electrostatic.html is the best collection of electrostatic machines one can find at the moment. It will take you months if not years to learn what is offered. You will spare yourself years of research by studying this web site. It contains more or less all the knowledge about electrostatic machines there is so far. Also references to many papers.

Research essentially stopped in the 60ies with the Van de Graaff Generator https://en.wikipedia.org/wiki/Van_de_Graaff_generator. HV diodes, capacitors and even HV transistors nowadays allow for Voltage doubler circuits (instead of electrostatic machines) https://en.wikipedia.org/wiki/Voltage_doubler if one needs High Voltage as in magnetic resonance imaging.
« Last Edit: January 31, 2017, 01:27:35 AM by conradelektro »

Cherryman

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Re: Sm0ky2's modified Voss Machine
« Reply #24 on: January 30, 2017, 09:22:29 PM »
If Smokey is ok with it, we talk about electrostatic some more.


Here is a nice interview with John Trump ( Yup, "the Uncle" )
( Who worked with Van der Graaff as a mentor ! )


They briefly touch the subject of using electrostatic engines as a power-source in space.
But it look's like the interviewer does a subtle job of putting that to rest very quickly.


https://youtu.be/wozw24RACZ8?t=27m56s


Interesting stuff. 


( I do recommend for the curious mind you see this whole interview )

sm0ky2

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Re: Sm0ky2's modified Voss Machine
« Reply #25 on: January 31, 2017, 07:49:45 AM »
In the early days of these machines they recognized
That x-rays and other 'effects' could be initiated with
The high potentials they could achieve.


They died in the medical industry and didn't really
resurface, except as toys and novelty items in science
museums, until recently.


Here we are some 200 yrs more advanced in all kinds
of technologies which give us endless things to play with

sm0ky2

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Re: Sm0ky2's modified Voss Machine
« Reply #26 on: January 31, 2017, 07:52:05 AM »
The last generation to experiment with this stuff was
Doing things that sound like science fiction even today.


I think this technology can lead to things we have
Never seen before.

shylo

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Re: Sm0ky2's modified Voss Machine
« Reply #27 on: January 31, 2017, 11:01:50 PM »
Hi Graham, Not really much to see ,just a magnet rotor turning.
I have to pre-charge the cap banks by spinning the rotor by hand for a minute.
If I connect a load, 36 led's from a flashlight, it only runs 20 minutes.
If I give it a 30 second spin every fifteen minutes, it will run , I'm guessing for as long as I'm willing to spin it.
The rotor charges the cap banks, but I lose with every rotation, if I can add this it may help.
Do you collect charge from the inductors(stationary plates)?
Or is it the moving plates|?
The neutral bar , why not just collect there?
Not sure ,I'm understanding it.
Thanks artv   

sm0ky2

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Re: Sm0ky2's modified Voss Machine
« Reply #28 on: January 31, 2017, 11:46:20 PM »
Charge is transferred from the stationary (inductor) plates.
To the moving (collector) plates.
It is picked up from the collector plates as they pass the brushes
The neutral bar then gets rid of excess charge on the plates
So they can induce further charge on the inductor plates.
Without the neutral bar you lose the difference between
What is left on the collectors after "pick-up", and the charge
held by the larger inductor plates.


The Voss functions without the neutral bar, just not as well.

Cadman

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Re: Sm0ky2's modified Voss Machine
« Reply #29 on: June 26, 2017, 03:29:30 PM »
Sm0ky2,

I have been inspired by your Voss machine and I'm in the process of building an influence machine similar to yours.

My build is coming along nicely but I'm having a little trouble finding a suitable low drag motor to drive it with.
Would you be so kind as to tell me what motor you used?

Thank you,
Cadman