Multifilar Generator Coil - Lenz delay Experiments

[BroMikey]

Hi all, was testing the setup today with the 51 strand coil.
It appears the motor with 12 volt input at .45 amps with only one coil/core, turns the magnet rotor at 1725 rpm.
At 24 volts input at .75 amps, runs rotor at 3450 rpm.

With 25 watt incandescent bulb load across 51 strands in series, there is slight speed up,)

51 strands in series running which rpm? 1725? or 3450?

[lotec]

Hi all, was testing the setup today with the 51 strand coil.
It appears the motor with 12 volt input at .45 amps with only one coil/core, turns the magnet rotor at 1725 rpm.
At 24 volts input at .75 amps, runs rotor at 3450 rpm.

With 25 watt incandescent bulb load across 51 strands in series, there is slight speed up, though not much power.
Half the strands are connected together using the european plastic connectors and turion said that may cause an issue with getting power, his bulbs did not light when using connectors.
Will be thinking about what the next step will be.
peace love light

Hi SkyWatcher,
Thanks for sharing your experiment and your experiences so far. You are spinning up your rotor with coil and core in place with 24 V at 0.75 amps, to 3450 revs. That is very well done, very economical, very nice. Is that with Turions magnetic drag / cogging counter measures in place ? The cordless power drill I use to spin things up uses something like 1.7 Amps at 18 volts to spin the chuck up to 1300 RPM's, and that is with nothing in the chuck.

I noticed you've gone axial flux this time around, I think that is a wise choice for this type of machine. One thing I'm not clear on, did you have the coil at the far end of the core, away from the magnets, perhaps with the idea of enhancing the delay, or at the close end with a focus on flux cutting ( which I am starting to think is a more powerful induction than magnetizing iron to induct the wires around it ).

In my quest to find the ultimate hybrid gen / motor coil for self running or semi self running motors, I will be following Turions and your work with big interest.

Thanks again

Regards
Cheers

[lotec]

Just to edit my last post. Guilty. my last post had loaded questions. The placement of the coil on the core, probably doesn't determine which type of induction is more powerful.
To be fair, I have to assume that the inverse square law applies equally to all media that can support magnetic flux, which is probably most, give or take. But I am still interested in the answer any how

cheers

[Quantum_well]

Cube.

Dropoff from a dipole follows an inverse cube.

[BroMikey]

Hi all, was testing the setup today

With 25 watt incandescent bulb load across 51 strands in series,
there is slight speed up, though not much power.

Of course it didn't light up brightly because 29awg wire will only
max out at 100ma and that will take a lot more magnetic flux than
you are running. You will be blessed to get half of 100ma or 50ma.

Look at the math for transmission current handling.

For 1000 feet or more = 100ma X 120vac = .100a = 12watt max

You may get 50ma X 120vac = 6watts

My suggestion is to do what I did in my video using the same 29awg
wire, 50lb magnets, transformer steel, 20 magnet rotor, connect to
a 5 watt LED bulb.

Have fun, you are doing great.

[SkyWatcher]

Hi all, Hi bromikey, the 51 strands in series at 3450 rpm, need to hook up the motor pulse controller to slow it down, probably doesn't need to be that fast.
Yes you're probably right about the wire gauge, haven't had any luck yet with led bulbs, they all slow the magnet rotor down.

Hi lotec, yes, 24 volts or so at .75 amps with one core/coil in place, 1/16" magnet to core gap, without any magnet neutralization yet.
The core protrudes an inch from the coil bobbin and the bobbin has 1/4" thick wood, so 1-1/4" of core before the coil.
Yes, that was the idea, extend the core to enhance delay and it did work, because without it in the original project with the small rotor, it did not speed up without the extension.
peace love light

[BroMikey]

I know your are just getting started, good work. Thanks also for the
clarification of the higher and lower Rpm's used at selected voltages.


.

[BroMikey]

Sky the null is reached with ever so slightly some relief on the drive
motor using 2850 feet of wire.

Magnetic flux and gap is to small if after 2800 feet you are only getting
a slight speed up. This is where I closed the gap on my 50 lb magnet
and went from 40ma drive reduction to a 400 ma drive
reduction.

If the gap is tight we can only conclude that the magnets are to weak.
Also remember I have only experimented with MY rotor and MY number
and strength of magnets, so keep at it, so more data can be recorded for
your system

Weak magnets have been so much on my mind that I am prepared to
change these out for the little bit bigger physical size I have in the
small rotor that are 9lb and put the 47lb magnets and shields in place
of those.

Especially when i consider that 50lb vs 10lb magnets will make no
difference on drive input.

[BroMikey]

80lbs
https://www.magnet4sale.com/n52-neod...rical-magnets/


1/16" thick shield will not allow the magnet to be pulled back out
of it's socket without a special tool. The pattern shows a better usage
for flux plus will keep overlap down to a minimum for crammed rotors.

56lbs
Just a moment...

[lotec]

Hi all, Hi bromikey, the 51 strands in series at 3450 rpm, need to hook up the motor pulse controller to slow it down, probably doesn't need to be that fast.
Yes you're probably right about the wire gauge, haven't had any luck yet with led bulbs, they all slow the magnet rotor down.

Hi lotec, yes, 24 volts or so at .75 amps with one core/coil in place, 1/16" magnet to core gap, without any magnet neutralization yet.
The core protrudes an inch from the coil bobbin and the bobbin has 1/4" thick wood, so 1-1/4" of core before the coil.
Yes, that was the idea, extend the core to enhance delay and it did work, because without it in the original project with the small rotor, it did not speed up without the extension.
peace love light

Thanks for the extra details SkyWatcher, You do good work

Cheers

[lotec]

Dropoff from a dipole follows an inverse cube.

Things are more unforgiving than I thought, all the more need for good craftmanship and tight tolerances.

[Quantum_well]

Clearance

You've got it,except for probably salient pole and reluctance types,keep as tight as possible.
Xavier.

[bistander]

Question

Magnets
1/2" x 3" 65 lbs pulling force
1" by 3" 300 pounds pulling force.
Notice the difference?
...

Hi Turion,

Can you show where or how you determined these forces? Using a pretty reliable on-line calculator, I get different numbers.

https://www.kjmagnetics.com/calculator.asp

Regards,

bi

[bistander]

Confirmation

The pulling forces are listed on the specs page for each magnet on the web site where I buy them. I am giving you their numbers, not mine.

Ever consider a misprint or error? Or maybe your source defined pull force differently. Like :"Pull Force is the amount of force required to separate 2 of the same size magnets from each other." Which doesn't seem to apply. Oh well.

I strongly suggest the reader research and verify any information posted on this thread before investing money or effort to related experiment.

Magnet quote from: https://www.magnet4less.com/faq.php?cID=1

Regards,

bi

[BroMikey]

bi,
Nit picking once again. Always attacking the little things.


Maybe you should check out the specs for the Model # ND039-3 which is the 1/2" x 3" magnet or the Model # ND049-3, which is the 3/4" x 3" magnet, or the Model # ND064-1 which is the 1" x 3" magnet on that same web site you just quoted. Just a moment... They are not the only web site with these numbers, but they have some of the best prices. DO you ever even LOOK at this stuff or do you just assume you know everything about everything?

The pull strength is the highest possible holding power of a magnet, measured in kilograms. It is the force required to prise a magnet away from a flat steel surface when the magnet and metal have full and direct surface-to-surface contact.

This is referred to as the surface field and is measured in Gauss (or Tesla). Pull Force Testers are used to test the holding force of a magnet that is in contact with a flat steel plate. Pull forces are measured in pounds (or kilograms).


https://www.kjmagnetics.com/images/c...ase2.case3.gif