Motor Generators

[bistander]

Additional info not a lot. At post #1335
anybody can see my rotor. Multifillar coils, 6 strands, 50 meters each. Tried every possible connections series-parallel between them, as Dave has suggested. The outcome, which means watt of the coil, was always less than half. Say, with 8 magnets was 20 watt, with 16 magnets was 8 watt. All parameters the same, but number of the magnets. Magnets NNN. Come on, people. There must be others who faced the same thing. Maybe they just don't see this thread.

Yes, I reviewed that post. Are you just using a single coil? And to get watts, do you use a resistor as load? As you'd need both voltage and current. In this case, can you measure no load voltage in both ways? That would be telling.

For the coil, each rotor magnet passage represents one cycle of generated voltage. Imagine a sinewave cycle. The strength (flux) and the speed (RPM) of the magnet determines the height of the waveform thereby the rms voltage according to Faraday's Law. The RPM also dictates the frequency, number of cycles per second. Doubling the number of magnets will double the frequency but, at first glance, should not affect the height of the waveform cycles (rms voltage). Doubling the frequency will affect the impedance (increase for inductive circuits).

Another telling test would be to look at no load voltage from a single strand coil both ways and see if it is the same. If it goes lower, like by half, then I think it safe to say that the issue is with flux reduction. It could be that fully populating the rotor has altered the magnets' flux paths where much less flux links or cuts the coil.

bi

[liber63]

Additional info not a lot. At post #1335
anybody can see my rotor. Multifillar coils, 6 strands, 50 meters each. Tried every possible connections series-parallel between them, as Dave has suggested. The outcome, which means watt of the coil, was always less than half. Say, with 8 magnets was 20 watt, with 16 magnets was 8 watt. All parameters the same, but number of the magnets. Magnets NNN. Come on, people. There must be others who faced the same thing. Maybe they just don't see this thread.

I thought about impedance, that's why a cut the wire to the half of what it was with the 8 magnets. But it was same effect, half of the original power, even with half of the wire. I used no load tests, and load tests with bulb. I think i will go even with lesser wire first, and if nothing change, i will cut the core in half, to see what happens.

[bistander]

I thought about impedance, that's why a cut the wire to the half of what it was with the 8 magnets. But it was same effect, half of the original power, even with half of the wire. I used no load tests, and load tests with bulb. I think i will go even with lesser wire first, and if nothing change, i will cut the core in half, to see what happens.

What were voltage values on the no load tests?

bi

[BroMikey]

http://www.energeticforum.com/fileda...photoid=503989

[BroMikey]

Eric teaching years ago

[BroMikey]

http://www.energeticforum.com/fileda...photoid=503989

I need to find the Neo magnets. Sounds like weak magnets. But with double the magnets you double the FREQUENCY. To find the AMOUNT of ENERGY you need to RECTIFY and send to a load.

Also to find the frequency of operation of your machine is easy.
Let's say your rotor turns at 2000 rpm's well that is revolutions per MINUTE not seconds. We must reduce that figure to seconds because Hertz is in seconds. So to find revolutions per second of 2000 per minute divide by 60 this = 2000 / 60 = 33 rps or a single magnet traveling in a 360 degree circle going around 33 times. But you have 16 magnets. 33 X 16 = hertz.

I have asked for years if anyone on these boards can find the frequency in Hertz of any machine. No one has been able to do this as simple as it is. I have posted answers to calculations that were false, no one has corrected me. This shows the level of schooling.

So what is the answer? Does anyone care? Where is your excitement learning new thing? Is frequency not worth our time to consider? Does it have zero impact and a project? Come on people think.

I have been banging heads with creatures from the lake on this sites for years who want to dismiss everything I say. Well good luck with that I won't be moved off topic. Look around the web, nobody understands frequency vs power density.

Because this is more complicated than just plugging in a few values in a computer modelling software nobody can get the answers right. Therefore I must be a false instructor.

You all think 1000hz like Dave's new machine is the same as Liber63 Hz? Dave's has 22 magnets and he is running 1000 hz, Liber is running who knows what as I do not know his RPM's

[Turion]

bro,
You were right! I was doing cement today. I have no clue why adding magnets has that effect. I have never seen that happen. 1BB8C04D-B8C1-4DF7-94B6-4AD4E677A2D8.jpeg

[BroMikey]

Cement man I guess he is still doing cement, 4 sale?

[BroMikey]

tick tok days to go, showtime Dave sell the plans and make some money

[BroMikey]

Cement man batteries? Go cement man. Fun with cement intermission. 6 weeks to go. pour that cement.

https://www.popularmechanics.com/sci...ement-battery/

[BroMikey]

My favorite cee-ment batteries

[voltan]

interesting no cogging setup.
https://youtu.be/5akqkEM-sW4

[BroMikey]

Please post any tests being done which includes showing the rotor turning without jumping all over. Looks nice. How does it run?

[liber63]

Hi Bro
I have not recorded any tests. I 've done thousand of them. Most of the time is preparing and testing different coils. What do you mean 'without jumping all over'? Rotor turns very smoothly and had it up to 2500 rpm, though most of my experiments don't need that many rpm. I am very happy around 1800-2000, or less. My problem of not having enough power on the coils, as a friend of mine suggested, is something I didn't know when making the rotor. He said I should have enough space between each magnet. He said it should be at least the diameter of a magnet or more.

I want to ask Dave, what is the distance between his magnets? Is it enough for a virual magnet in between, or more?
I am about to make another rotor with more space between the magnets.

[BroMikey]

Hi Bro
I have not recorded any tests. I 've done thousand of them. Most of the time is preparing and testing different coils. What do you mean 'without jumping all over'? Rotor turns very smoothly and had it up to 2500 rpm, though most of my experiments don't need that many rpm. I am very happy around 1800-2000, or less. My problem of not having enough power on the coils, as a friend of mine suggested, is something I didn't know when making the rotor. He said I should have enough space between each magnet. He said it should be at least the diameter of a magnet or more.

I want to ask Dave, what is the distance between his magnets? Is it enough for a virual magnet in between, or more?
I am about to make another rotor with more space between the magnets.

I AM SURE DAVE WILL SEE THIS AND HELP YOU AS HE HAS BEEN THERE FOR EVERYONE THE PAST 10 YEARS OR BETTER.

Your virtual magnet space seems fine to me. As far as your friends statement goes I would like to see his build first. People talk but we need to see their build, ya know?

We have all been told by Dave a million times. Slow rotor speeds give low coil output.

Wide gaps give low coil output.

Weak magnets give low coil output.

Combine slow speeds with large magnet gaps and weak magnets and you will output little.

As another example Thane Heinz runs 3600 rpms, 60 thousandths gaps from coil to core and strong magnets. Some of his rotors the magnets are 1/4" apart and other rotors 1" apart. These rotors all work fine and they are metal rotors not plastic.

You have a nice machine there inspired by Dave Bowling and I wish you well on your many tests.