Motor Data

[Stolla]

Please post your motor data here, i.e type of motor type of winding, wire thickness, turns pers slot motor pole count, kv application etc
So far what i have done
scorpion hk3 4035 1.32 yy 6+5 turns kv 515 TDR and compass 7 hv
scorpion 4025 1.32 yy 6+5 turns kv 900 Logo 600 6s
scorpion 5020 1.5 yy 8 +8 turns kv 510 Going into Raptor E 720
Please note that on 5020 the bell runs very close to the stator on the chamfered side so keep your extra windings on the inside of the stator
Pyro 700 1.32 yy 6+6 turns kv 520 TDR
All these were tested on powerjazz so may differ a little but you'll be in the ballpark
Some pics of before and after as well please,doesnt matter what it looks like,(i feel ashamed of my work compared to the likes of dekker etc) as long as it works and we enjoy!

[powercroco]

first you have to agree, in which way you count the turns!
if not, the given numbers are almost worthless.
and also, if you don't clarify, with type it is. (12N8P or 10P in this case)
think about HK3026: it is made in 9N6P; 12N8P and also 12N10P!!!

our way:
http://www.powerditto.de/Schemazahl.html

[Stolla]

Ah see what you mean, reckon we are referring to the pretty side!, opposite where wires normally exit,
Now we must find a way to keep you here Ralph!, you see how confused we are

[ahahn]

Actually it would be interesting to see a few data points, like Io, computed coil resistance....

I find it interesting to plug in the data into a motor calc program like DriveCalc, just to get out some curves.

Of course these are pretty big motors compared to what I have done in the past (Scorpion 30xx size and smaller), and the data points need to be taken at WOT, which could be a bit hairy!

[ZuvieleTeile]

Originally Posted by powercroco

first you have to agree, in which way you count the turns!
if not, the given numbers are almost worthless.

our way:
http://www.powerditto.de/Schemazahl.html

That what I've learned last week.
Take the nice looking side (most refer to it as the top. Don't know why, because for me the top is where the shaft comes out) and count the windings there.
The number of wires in the slots is what counts.

[HeliFX]

"The number of wires in the slots is what counts."

bloody hell that's what throwing me off
tricky

Originally Posted by powercroco

first you have to agree, in which way you count the turns!
if not, the given numbers are almost worthless.

our way:
http://www.powerditto.de/Schemazahl.html

[Stolla]

Dont worry zt my brain is also upside down! to me the nice looking side is the bottom.
Helifix again youre thinking too hard! Usually the turns are the windings as counted from the "bottom" ,or to not get you "thinking" again, the "neat" side opposite where the wire ends usually exit

[ZuvieleTeile]

Yeah, there is actually no reason to end all the wires on the same side of the stator.
Most of the pics we see, have all the wires ending on the so called bottom.
But if, as Stolla mentioned, you want to have a very specific Kv, which requires just half a turn more, you can also solder the star point(s) on the other side. . . if there is enough room.

[HeliFX]

scorpion 4025 1.32 yy 6+5 turns kv 900 Logo 600 6s

can anyone clarify what "6+5 turns" means

stolla has his 4025 stated as that and I was told on a 12N8P motor requires equal number of turns.

if YY means that for each stage is a parallel of 2 halves of the winding or 2 Y motors in parallel. Is it 6 turns for 1 stage and 5 turns 2 stage depending on Kv value your trying to get.

[powercroco]

it means primary, that is has groups - so it should be a 12N10P type.
on 12N8P it makes no sense to use different numbers on each tooth and you havn't these small 2 teeth groups.

heliFX,
you got so much help in rcgroups and also in rc network, but in reading your question again, it seems to me, you havn't understood the basic difference between 12N8P and 12N10P windings ?

[HeliFX]

I guess I'm confusing myself more.

basically
12N 8P (ABC)x4
For Kv adjustment select the number of turns

got it

thanks

Originally Posted by powercroco

it means primary, that is has groups - so it should be a 12N10P type.
on 12N8P it makes no sense to use different numbers on each tooth and you havn't these small 2 teeth groups.

heliFX,
you got so much help in rcgroups and also in rc network, but in reading your question again, it seems to me, you havn't understood the basic difference between 12N8P and 12N10P windings ?

[Stolla]

For the record, in the pics i posted https://www.helifreak.com/attachment...7&d=1328679757 the top motor, pyro was done in the blue scheme and the bottom one a 4035 yy 1.32 was done in the red scheme starting from midpoint in the winding wire on the inside of the stators as depicted here
http://www.powerditto.de/schemamodus12N_YY2.html Thnx for link Ralph!

[GMAURO]

I also want to contribute with some information about some of my engines

Pyro 700-45 12N10P 6+7X1.25 D 441 Kv
Pyro 700-52 12N10P 6+5X1.32 D 514.5 Kv
Pyro 700-45 12N10P 6+5X1.32 YY 609 Kv
Pyro 700-52 12N10P 6+6X1.32 YY 535 Kv
Pyro 700-52 12N10P 7+7X1.25 D 416 Kv
Pyro 30-12 12N10P 6+6X1.32 D 523 Kv
Pyro 700-45 12N10P 5+5X1.4 D 576 Kv
Pyro 30-12 12N10P 6+7X1.25 YY 500 Kv
Pyro 700-52 12N10P 6+5X1.4 D 518Kv

Scorpion HK2-4035 12N10P 6+7X1.18 YY 490 Kv
HK2-4035 12N8P 7+7X1.25YY 540 Kv
HK 4225 KIT 12N10P 6+7X1.32 YY 529 Kv
Hyperion HK4035 12N10P 6+6X1.25 YY 483 Kv
HK 4525LE 12N10P 6+5X1.4 YY 546 Kv
HK2 4035 12N10P 6+5 X1.18YY 527 Kv
HK3 4035 12N10P 6+5X1.4YY 522 Kv
HK 2221 9N6P kit 6+6 Y 1629 Kv
HK 3026 12N10P 6+6 X0.9YY 931 Kv
HK 3026 12N14P 6+5X1D 698 Kv
HK 3026 12N14P 5+5X1Y 447 Kv for Protos 500 12S
HK 3026 12N14P 7+8X0.9 YY 594 Kv
HK3 4035 12N10P 6+7X1.32 YY 430 Kv
HK 3026 12N14P 8+9X0.8YY 526 Kv for protos 12S
Hk 4020 12N8P 6+6X1.25 YY 1023 Kv
Hk 5025 12N10P 6+7X1.6 YY 504 Kv

Dualsky aero 12N14P 13+12X1.18 YY 227 Kv
Protos 500 lipotech 12N14P 6+6X0.9 YY 895 Kv
Align 700 MX 12N10P 7+7X1.25 YY 471 Kv
12N10P 6+6X 1.32 YY 551 Kv
12N10P 6+7X1.32 YY 515 Kv
KDE Direct 700 12N8P 6+5X1.6 YY 510 Kv
Align 600 MX 12N10P 6+6X1.18 D 502.6 Kv
Turnigy 600-1100 12N8P 5+4X1.32 YY 1010 Kv

For complete and correct information, the ESC used is and Hobbywing 120A-HV with 15° fixed timing.

[powercroco]

the n spec depends on software of esc and the choosed timing.

p.e. jazz/jive generate a substanially different (lower) n spez. compared to yge.
or with 5° you will find a lower n spec than with 20° or 30° timing.

so pls. add an information about the used esc, timing, and softwarerevision.

in addition:
also little mistakes in magnet distances, airgap, stator manufacturing (number of iron plates) and winding will affect the n spec.

ralph

[Stolla]

wow Mauro BIG difference between my 5020 8+8 at 510kv and yours 6+7, 504kv, yours should be much faster? wasnt 5025 perhaps?

[powercroco]

are you both counting the turns in the same way?

http://www.powerditto.de/Schemazahl.html

[GMAURO]

Originally Posted by Stolla

wow Mauro BIG difference between my 5020 8+8 at 510kv and yours 6+7, 504kv, yours should be much faster? wasnt 5025 perhaps?

HI Hermann, sorry, but i wrote it wrong. The motor is 5025, not 5020. I already corrected.

[GMAURO]

Originally Posted by powercroco

are you both counting the turns in the same way?

http://www.powerditto.de/Schemazahl.html

I think yes. Personally i conut the number of turn that is visible on bottom of stator, the opposite side of wire connection with ESC. For exampple, in attached pics one 6+5 winding

[Stolla]

aha! thought so, that must be a beast , or should I say a crocodile of a motor!
Ralph, you guys usually count turns opposite where wires exit to esc, i.e. as in pic 1 of the link? Just wanna be sure we get it right

[Stolla]

Oops Mauro you posted while I was typing, yes same side I'm counting