Muller generator replication by Romerouk

[SkyWatcher]

Hi qvision, it is odd/even setup, 5 coil/cores on each side of 6 neo magnet rotor.
Going to use external drive first to achieve speed up effect and this way I know what rpm will be needed to do so, similar to what rod is working on.
peace love light
tyson

[stevie1001]

will do the photos today I will also do a quick Vid for YouTube looks cool if nothing else. at the speed they can get to it maybe important to think about balancing. vibration will cost energy.
because of load it takes 7 volts to do 5500 RPM this is where the Lenz law effect will show drag or no drag the out runners will uncover the truth.
great analysis tool?

Tora,
Thank you for all info you share here.Absolutly great.

Your proposed test with the external electromotor is a good one to find the lenz borders vs speed.

Yesterday, my big muller replica, had it first rpm,s. After trying multiple ways of hooking up the two bifilar coils to the circuit, only one came out good.
The rotor is doing a couple of hundreds of rpm on just 3 watts.
And thats just one set of drivingcoils and no others cores on the setup, with all clocking you can have.
Coils to close to the magnets is not good.

[qvision]

@Tyson

How many magnets/coils line up at the same time during rotatoin with your setup, i notice you haven't gone the even/odd route ?

@Elias

I don't think they are the same as computer fan motors.

[elias]

will do the photos today I will also do a quick Vid for YouTube looks cool if nothing else. at the speed they can get to it maybe important to think about balancing. vibration will cost energy.

because of load it takes 7 volts to do 5500 RPM this is where the Lenz law effect will show drag or no drag the out runners will uncover the truth.
great analysis tool?

Thank you for the info on your coils, Happy that your outrunner is still alive. Is those motors identical to those found in computer fans? I might get one of those large fans and use it as a prime mover.
I am looking forward to see a self running device! Keep it up. Your work is an inspiration to all of us.

[SkyWatcher]

Hi folks, just thought I'd show what I'm working on. 6 neo magnet rotor, 10 coil/cores, 5 per side. Here is a pic.



Uploaded with ImageShack.us


peace love light
tyson

[Slider2732]

Speaking of outrunners...If that motor of yours does blow up, they can be rewound to any kV you desire. Star or Delta, it's a very common practice in R/C.
As long as your magnets don't get too hot and lose magnetism. Rewinding can be done in an evening and while torque isn't so important, but used amperage may be, I would recommend Star.
I fly rewound CD-Rom drive motors on nearly everything (around 7oz total weight of aircraft). Take the motor out of the drive, just rewind it, even the silvery magnet ring stays in place.

*Edit* now that i've actually read the previous page I see the Futaba R/C stuff is in use. I've always wanted to incorporate a flywheel effect Muller type thing into a heli project (gyroscope) but your project Rod is really looking like what I was thinking of
I might not trust my Spektrum gear on something though...imagine a loss of signal in the air with one of these hurtling around

[quantumuppercut]

will do the photos today I will also do a quick Vid for YouTube looks cool if nothing else. at the speed they can get to it maybe important to think about balancing. vibration will cost energy.

because of load it takes 7 volts to do 5500 RPM this is where the Lenz law effect will show drag or no drag the out runners will uncover the truth.
great analysis tool?

Looking forward to learn something new and hope the tonic continues to boost your health.

[toranarod]

Hi hello all (could turn out to be a confusing handle, LOL).

That's an intriguing idea.

will do the photos today I will also do a quick Vid for YouTube looks cool if nothing else. at the speed they can get to it maybe important to think about balancing. vibration will cost energy.

because of load it takes 7 volts to do 5500 RPM this is where the Lenz law effect will show drag or no drag the out runners will uncover the truth.
great analysis tool?

[qvision]

attached the setup .. ..not related to this thread but since i am also a plane guy just thinking about those high rpm motors..

Hi hello all (could turn out to be a confusing handle, LOL).

That's an intriguing idea.

[qvision]

Thanks Rod and Tyson for explaining.

RPM per volt means that Rod's 1038 kv will give ~5000 RPM at 5 volts then ? That's pretty wild !

Rod i found some shaft couplers that will do for me with the motor i found on ebay, i can't wait to try this, but i would still like to see your pictures if it's not too much trouble

[toranarod]

Good news the Motor that smoked is still working.
it probably been degraded but for this who cares while i am still learning.
it will go better when i change the magnets and the ferrite coils.

[toranarod]

I am used to kv meaning kilovolts, what does it mean in this context ?

Also, Rod, how are you coupling the motor shaft to the rotor shaft, lots of these motors seem to have odd shaft sizes like 3.17mm ?

Ah, i see from your pic you maybe machined your own coupler ?

I am using a model electric car our boat universal joint the are designed to fit right on the motor and very strong the model car guy put them through hell in this application they are under no stress and they are cheap. you can connect it to the Muller any way you like I did it with out any machining every thing from you model toy shop and my drill press.
would you like a photo?

[SkyWatcher]

Hi folks, Hi qvision, KV in motor terms, means, rpm per volt on no-load.

I have been working on another setup, this time with easily obtained 5/16" diameter steel bolts from hardware store as cores for coils.
I know some feel this material is not ideal, though Robert Adams seemed to think they were, if you read information he wrote, he stated that solid cores of iron worked well and they did for me as well in my older Adams motor that ran cold, like a refrigerator effect.
I will be using an external motor drive as well for testing, probably use belts to drive it.
peace love light
tyson

[qvision]

I am used to kv meaning kilovolts, what does it mean in this context ?

Also, Rod, how are you coupling the motor shaft to the rotor shaft, lots of these motors seem to have odd shaft sizes like 3.17mm ?

Ah, i see from your pic you maybe machined your own coupler ?

[hello_all]

outrunner setup

attached the setup .. ..not related to this thread but since i am also a plane guy just thinking about those high rpm motors..