Alternative motor windings and drive schemes

[Clugh]

Bridge topologies as simple as this will carry high current. The highly developed for aerospace IC can drive the bridge up to 64Khz if I'm not mistaken The gate drive current requirement of the fets determine how many and the pwm frequency it can drive. Thats why the fets on a YGE are very antiquated in terms of copper footprint and they require alot of gate charge current compared to the new tech . You cant run as many in parallel.so the on resistance is going to be higher than a drive using new FET tech I don't care who you are. The new fets can also be cooled on both sides.

[Clugh]

Hi All
I just wanted to share this thread from the other side of the pond on the Speedfire 2 . I should have one here soon enuf. I will have to buy a radio for it.

Speedfire 2 | RC-Network.de .

You will have to use google translator If you don't know German. Check it out. Its much more informative than what's available on RCG. I'm thinking to set mine up with a direct drive external rotor the XNOVA Lightning 3225 10 pole motor . Natively the one I purchased is 1000Kv. I'm testing it with a castle but I'm going to put it on an APD F3 200 HV. When I get the plane Ill start a thread for it in the glider section. But i will highlight the power system proposals here.

[Clugh]

Die "Skorpionklopfer" und andere Powercroco‘s | Seite 32 | RC-Network.de

OK, Martin und die Fake-Studie sollten Ihnen helfen, diese zusätzlichen 3 % Effizienz zu erreichen und zu verhindern, dass Ihre Sachen auf den Boden fallen und in Flammen aufgehen.

Sie haben die einfachen Lösungen und Sie sehen das empirisch, wenn Sie brennen.

Now thermally conductive compounds dont work according to some goofy "engineer" at scorpion

as if they wouldn't say that since their motors have absolutely none of it there.... but endfest a PURE insulator trapping in heat.....Martin has no words about that though right?

YAAC!



There's not a single real engineer that doesn't know better..

Now weve regressed on the German social media to just making up crap again that goes against millions in R&D..



Hubert

[Clugh]

Since he has nothing to answer for the end fest that would certainly be worse he publishes the falshoods. Now youll never see a graph or any data for thiis "test" what a croc of bs! What were the load points of the false test that never took place Ralph. A real test was performed right here on Cary NC a few miles from ABB's corporate research center. Please stop lying to the forums. This INDEPENDENT study ensure they are just trying to sell products like you are right now.

Get up off the ground and be honest with the modelers! We have the real world class pilots that already confirm cooler operation and less draw to do their job....



They run for 7 - 8 min without your smoke and repeated black box moments.. We certainly wont stop and will love if you continue to use nothing or Endfest.




I guess i can thank Martin for this great potting idea as well Ralph? Its your work so it sounds like you're getting great direction from the young man. I like the methodology in the German social media. Since TC dont work we gobs of pure insulator on ya wires to hold the heat in since none of it dissipates anything...

Is he your teacher? 🤔

Interesting and with real results! I wont mimmick!

More lies and bad karma is what we can expect with your motors Ralph. Its clearly simple. Martin told you everything except endfest is a pure insulator and doesn't adhere well to kapton...

RIGHT? 😶

[Clugh]

Be more direct. Wind the 4220 scorpion record the motors constants and put the 12 X 8 on it on 8s lipo. and 15 degrees static timing and log it onm the static bench so people can easily compare the machine to the AJ Pyro on the same prop and voltage.. use the endfest or nothing. Wel can put thermocouples on the motors wires and the cores quite easily. You interested in proving something factual to ya friends? I'm all for it.

For me its that simple and I love that kind of thing with you Ralph. We remember how the last comparison based on recorded motor parameters went.

YT
Hubert

[Clugh]

You have wound about 6 motors since and not one is potted with anything. If what you say was even remotely true why did you stop or stop showing the pictures? Where is the endfest now. You dont secure the wires anymore???? Please post the study and research that shows unpotted motors perform the same or better than potted machines. Also I hope you know real test have shown at even a 30% density and encapsulated hotspots which is hardly vacuum impregnated the TC material still runs about 30 degrees Celsius cooler on average than an unpotted machine. We have the graphs and data from that independent study Ralph.

We will appreciate such data and published information from you.

Again you are more that welcome to contact Lord and request the data directly from them....

Revisit....

Lord corporation and Advanced Motor Tech ran independent studies on such materials. And also tested them in the over load conditions of 163% and 174% and the motor potted with the thermally conductive compound averaged 30C cooler.
At that rate the insulation will last as much as 8 times longer

LORD Corporation World Headquarters 111 Lord Drive Cary, NC 27511-7923 USA
+1 877 ASK LORD (275 5673)


This is the part when you start wasting my time with nonsense.. .

this makes the thread redundant for one person who cant seem to accept that what they do isnt the ONLY thing that can be done to improve a motor. It isn't our fault someone hasn't made any real progress in years in powering up..

Thank you
Hubert

[Clugh]

Ich schätze, man kann einem Hobby-RC-Piloten, der für seine Freunde Motoren neu bewickelt und die Forschung und Entwicklung von Unternehmen wie 3M ohne einen einzigen Datenfetzen übertrifft, wirklich nichts anderes sagen.

das Kapton das Patent funktioniert wie es sollte jedoch 😏

Hab einen schönen Tag Neffe
Hubert

[Clugh]

I continue to go the wrong way and have found material that conduct even higher than what we currently have. I have reviewed a plethora of data and research on the subject matter and tell you scorpions hand winding machine just wants to sell you motors with not alot of thought put into them. I mean the entire ball bearing and adhesive industries aren't spending their money to make things only to have the customer come back and say it doesn't work. I cannot take this kind of volley from the east side seriously at all. For me it just does not make sense to sit on a hobby forum and tell you things you know are not true.I It is truly astonishing to me that level of ignorance from anyone anywhere.

It really pisses me off

if you are on a forum as some said "guru" you should be helping people with truthful and accurate posting as much as possible.

The only reason I have engaged in winding motors for anyone but myself is so some of you can avoid this nonsense just to sell you something. I don't need a dime from motor winding.

Thats the truth...I really have a problem processing people that wont give you that.

Hubert

[Clugh]

Ralph Okon, Sie sollten ein Arzt mit Integrität sein. Hören Sie auf, die Leute in Deutschland anzulügen, und verdammt, manche von ihnen sollten klug genug sein, es besser zu wissen!

Sie müssen wirklich verrückt sein. Sie benehmen sich wie ein Kind und wissen, dass das eine verdammte Lüge ist.

Widerlich.


Hubert

[Clugh]

Ich habe sofort eine E-Mail an den anderen Ingenieur auf dem Skorpionfoto mit Martin, Christian Lucas von MagnetMotor, geschickt und ihn informiert, dass wir so nicht posten. Wir sind nicht wissentlich unehrlich. Nein, das wird nicht funktionieren. Ich werde alle mir zur Verfügung stehenden Fäden ziehen, um das auf diesen deutschen Seiten zu korrigieren, Ralph. Ich werde Christian sofort mit Martin in Kontakt setzen lassen.

Sie wissen bereits, dass Christian Ihrem Beitrag definitiv nicht zustimmt.

Sehen Sie, wie Sie Ihren Einfluss nutzen, um dem Hobbyisten gegenüber unehrlich zu sein? Sie posten jetzt wirklich wunderbar. Und ich weiß das nicht zu schätzen.

Danke
Hubert

[Clugh]

Time to terminate these and run them. I have one 600 left to do for Vince B. and thats it for 600s for awhile I guess...

Thanks for your time and patience,
Hubert

[Clugh]

I have one 14 pole pyro 600 for myself that ill use to compare to the xnova. Ill prepare them both of them for aviation propulsion in the Speedfire2.

[Clugh]

Die "Skorpionklopfer" und andere Powercroco‘s | Seite 32 | RC-Network.de

YT
Hubert

[Clugh]

The specially designed speedfire2 plane is ordered Ralph the big one is next. We may print the carbon bird in its entirety. The industrial 3 printer will be here next weekend no later. The brand new lathe goes up today. Going to purchase a nice DRO for it and the tool post grinder from themac.

[Clugh]

CoFe huh?. Ill have to think about that as I contract the split tooth and uneven tooth width stators today. I can load those in the pyro 1000 or cobra cannons and blast away with the APD PRO HV. We look forward to fried wunderbar sandwiches. Like anything else wind them up and post the numbers.

Yum!!!

[Clugh]

Watch me eat.....boys😉
Hubert

[Clugh]

Yesterday, 10:34 PM #136

Piece Wake up, feel pulse, be happy!

Ralph took my speed plank for his website, then deleted all the links. Typical, haha. Going fast on lipos is too easy. The new horizon is 1S 18650 li-ion power. Can the old alligator fly like this on 3.5 volts? This image has been resized. Click this bar to view the full image. The original image is sized 3264x1836. This image has been resized. Click this bar to view the full image. The original image is sized 3264x1836. This image has been resized. Click this bar to view the full image. The original image is sized 1033x1836.

1s challenge
He wound a single layer Ralph.


Hugh

[Clugh]

Hey Ralph have you seen this?

The Bamboo carbon X1 makes a strong argument. I could buy 3 for one carbon X doesn't look like it lacks on quality at all.

Decisions

To bad they had a accident on takeoff....

[Clugh]

He Guys

Look at this long explanition to convince the world that TC pots dont work then watch how easy I sipell it all this guy is nuts. Read this:
Powercroco

User

• Today at 09:36

• #625

I tried to show in the left graphic how the matter was explained to me. To me, the explanation also seems logical.
gray = iron, orange are the round wires.

On the top left the problem without additional mush.
The 2 red wires can release their heat like all the others in the direction of the iron, but not to the outside, because the 2nd layer is above it.
The heat of this 2nd layer only comes to the outside, but not to the iron.
Thus, these wires heat each other up additionally, because all 5 of them are less able to dissipate their heat than the ones next to them.

The smearing - with whatever - (light blue) only increases the problem. It reduces the surface area and is itself - no matter how well it conducts heat - in any case an additional thermal resistance.
On the other hand, it would be important to fill the green area with a heat conductor - but this is probably only possible in the vacuum process.
Wrapping the entire winding in thermal paste is a mess that I put aside very quickly.
Maybe you can try this between layer 1 and 2.

Between the teeth - i.e. really into the slot - you can logically only get with a vacuum.
There, too, surfaces are usually only closed and hotspots are created.

The illustration below shows how the problem can be reduced a bit by gaps in the 2nd winding layer.
The 2nd Bld shows the practical execution. With this winding on the right, I tried to reduce the heat dissipation problem as described by changing the arrangement of the conductors in the outer layer. Each conductor now has an outer radiation surface again.

Again, only the wires are glued together very sparingly to reduce oscillation during operation.
If you really look at the photo in #622, you can see it.

I could have come up with it myself if I had really evaluated all my old pictures of older burned and unburned windings in an unbiased way.
At the same time, the whole thing also explains why the single-layer windings had always worked better....


All this now only affects the effects in the winding and up to the stator package.
How the heat flow from there continues is at least as important.
This starts with the often anodized surface of the stator carrier and does not end at the motor base plate.
This is where the phase transition heat storage ala Martin comes into play - we only have to get a limited amount of heat out of the engine for a limited time (max. 40sec).

[Clugh]

The crocodile lays on stpidity because the motors have radial fans and a rotor the bring new air past the heads.

BUT MOST IMPORTANT IF ALLL THIS IS TRUE WHY HE DOES THIS: