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Old Jan 08, 2011, 10:11 PM
Expo is built into my thumbs
Hance's Avatar
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Originally Posted by didge View Post
Hance, thanks for your reply - that's the Hextronic version you've bought - I'll look forward to your report with interest!

Cheers
I am excited to try them. 2s on my custom wind 4500kv versus 3s on the stock wind 3000kv in theory performance should be the same but we will see.
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Old Jan 08, 2011, 11:09 PM
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Carmichael, CA
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There was some info floating around a while ago about 3000Kv's changing to ABC, but so far it's all rumor. 99.9% sure you'll get DLRK, unless they mess up your order and ship some other Kv.

Kev
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Old Jan 09, 2011, 08:02 AM
Curiouser and curiouser
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Rochester, NY, USA
Joined Oct 2005
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Originally Posted by Hance View Post
I just bought two of them from hobby king http://hobbyking.com/hobbyking/store...idProduct=5453 I should get them this coming week sometime.
Don't forget about the Chinese New Year slowdown.
This year it begins early in Feb and last 15 days.
Most everyone from the county side who is working in the city will take the trek home for the holidays. I have heard that for lots of them this is the only time they get to see their families - live in company barracks the rest of the year - what a sad way to have to earn the family income, eh?
So hope that your order gets out of China before then.

Walt
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Old Jan 09, 2011, 10:11 AM
Jack
USA, ME, Ellsworth
Joined May 2008
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Originally Posted by didge View Post
Has anybody bought a 3000kv lately?

I can't find it now, but I seem to recall some mention somewhere of them having changed from DLRK to now being ABC, although the picture on the HK site looks like it has 14 magnets http://www.unitedhobbies.com/UNITEDH...idProduct=8620

I just thought I would ask, because as we all know, any resemblance between the picture and the actual article received is, of course, purely arbitrary...

Cheers
Hobby King does not make anything as far as I know, they do buy a lot of stuff that gets branded with a "house brand" like hextronik or Turnigy and sometimes they fine tune the specifications as they are presented on their product descriptions.

When I was looking for the out of stock at HK Turborix DAT-750 motors a while back I found them at a Hong King dealer. That dealer, R2hobbies.com, seems to catalog a more complete line of the Turborix motors that are seen at any of the other RC dealers.

I found R2 to be very responsive and coherent (i.e., very good English skills in replying to emails), and a good place to do business with. I have placed several order with them now and gotten very good service on them.

If you look at the R2 motor pages and sort those by Product Name you can get a pretty complete listing of Turborix motors. There are many that I have not seen for sale at Hobby King, motors that Hobby King sells under other names, and maybe even some motors that are seen under other brand names at other dealers.

I sort of wonder if R2 does not catalog most or all of the Turborix motor line better than most of the RC dealers.

And I also think that the Turborix motors seem to lose their brand name labels and acquire minor changes in specifications (weights, rounded off Kv's, etc.) in the process of being bought and sold by other RC dealers and/or acquiring "house brand" names like Turnigy or hexTronik.

The motor that Hobby King sells as the "hexTronik 24gram Brushless Outrunner 3000kv" motor apprears to be the Turborix D2730 motor. The weight is slightly different and the Kv has been rounded up to 3000 by HK I think. Here is the listing at Hobby King:

24g hexTronik 24gram Brushless Outrunner 3000kv - http://hobbyking.com/hobbyking/store...idProduct=5453

And here is the listing at R2Hobbies:

21g - Turborix 5000rpm/v D2730 - http://www.r2hobbies.com/eng/proddet...od=rcps81527_2

For more examples, here are links to a number of Turborix 15 to 25 gram or so motors at R2Hobbies that appear to be the same as some of the hexTronik products. I also find the technical details (pole counts, magnet types, testing data, etc.) in the product listings at R2 to be more detailed and helpful and presented better than they are on any the Hobby King pages:

20g - Turborix 1300rpm/v D2730 - http://www.r2hobbies.com/eng/proddet...od=rcps81527_1

15g? 25g? - Turborix 2000rpm/v D1400 - http://www.r2hobbies.com/eng/proddet...rcps81534_2000

10g - Turborix 2900rpm/v D1811 - http://www.r2hobbies.com/eng/proddet...rcps81533_2900

15g - Turborix 2300rpm/v D2211 - http://www.r2hobbies.com/eng/proddet...rcps81532_2200

21g - Turborix D2730 2500rpm/kv - http://www.r2hobbies.com/eng/proddet...od=rcps81527_3

27.5g - Turborix DM2205 1350KV - http://www.r2hobbies.com/eng/proddet...od=rcps0209002

17g - Turborix DM2203 1400KV - http://www.r2hobbies.com/eng/proddet...od=rcps0209001

Sometimes the slightly higher prices at R2Hobbies are offset by the included accessories. And the shipping seems to be a little cheaper too.

I think the bottom line is that when you can't find something you want from HK you may be able to find it under another name somewhere else. I found a Turborix web site once and but it appears to be down for now. It would be nice to see the details from the actual makers on a lot of these motors.

Jack
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Old Jan 09, 2011, 11:36 AM
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Chattanooga, Tennessee, United States
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And here is a listing at R2Hobbies:

21g - Turborix 5000rpm/v D2730 - http://www.r2hobbies.com/eng/proddet...od=rcps81527_2

Have you actually looked at the specs/performance they post for this 110W, 21g, 5000Kv motor.

For 3s usage, it variously suggests a 65mm EDF, a 7x6 SF prop and 9x4.7 SF prop... with the 9x4.7 they say it draws 12A, yet only gets you 110g thrust! A 9x4.7 on 3s @ 5000Kv... and 5 minutes on, 2 minutes off.........you have got to be kidding.

If that is their standard level of information, I would not touch 'em with a barge pole!

Oh, I looked at two other motors (2730-2500Kv/2730-1350Kv)... they use the same idiotic performance figures for them too... indeed for every motor they sell?????
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Old Jan 09, 2011, 03:06 PM
Foam, foam on the range....
didge's Avatar
Adelaide, Australia
Joined Feb 2009
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Quote:
Originally Posted by jackerbes View Post
The motor that Hobby King sells as the "hexTronik 24gram Brushless Outrunner 3000kv" motor apprears to be the Turborix D2730 motor. The weight is slightly different and the Kv has been rounded up to 3000 by HK I think. Here is the listing at Hobby King:

24g hexTronik 24gram Brushless Outrunner 3000kv - http://hobbyking.com/hobbyking/store...idProduct=5453

And here is the listing at R2Hobbies:

21g - Turborix 5000rpm/v D2730 - http://www.r2hobbies.com/eng/proddet...od=rcps81527_2Jack
This Turborix motor is nothing like a Blue Wonder - and the drawing on that page doesn't match the picture either!

Quote:
Originally Posted by jackerbes View Post
21g - Turborix D2730 2500rpm/kv - http://www.r2hobbies.com/eng/proddet...od=rcps81527_3
Jack
This one looks a bit like a BW, but with a threaded shaft - again, quite a bit different from any BW's I've got. Same drawing on this page as the other link though, but totally different motor.

The link I gave in my OP was to the Turnigy red & black 3000kv motor, not the HXT version. Anyway, I've ordered some, so we'll see when they arrive what the configuration is.

I think it's probably wise to follow Dr. Kiwi's advice!

Cheers
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Old Jan 09, 2011, 07:31 PM
I'm overcoming gravity!
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USA, NC, Huntersville
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Originally Posted by Dr Kiwi View Post
If that is their standard level of information, I would not touch 'em with a barge pole!
They could use a bit of help with their english also....
"Don't let the exiguous carbon steel metal too close with motor when fixing, it breathe inside motor by magnetic field then cause the motor to set up or cause the winding short!"
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Old Jan 11, 2011, 06:20 AM
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scunthorpe/england
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Quote:
Originally Posted by didge View Post
Has anybody bought a 3000kv lately?

I can't find it now, but I seem to recall some mention somewhere of them having changed from DLRK to now being ABC, although the picture on the HK site looks like it has 14 magnets http://www.unitedhobbies.com/UNITEDH...idProduct=8620

I just thought I would ask, because as we all know, any resemblance between the picture and the actual article received is, of course, purely arbitrary...

Cheers
my blue wonder(not turnigy) came in an abc wind,not drlk as was expected. works good tho pushed it up to 20 amps on 3s on a 4.5x4.5 a 4.1x4.1 works well(just slightly warm after 15mins full power) but a 4.75x4.75 was to much heat ,but as its freezing here i might try it.
it works good on 2s too an 8x4 pulled 14 odd i think i want to try a 8x6 on 2s but havent tried yet i wqnt to hit 20 odd in 2s and see wat it can do.
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Old Jan 11, 2011, 09:13 PM
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Carmichael, CA
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3000Kv with 2s will pull close to 14A on a 5043hd. Sounds like you've got something closer to 2000Kv... maybe they incorrectly sent you a "short wound" 1700Kv? 3000Kv and 1700Kv are both 10T motors.

Kev

[edit: That turborix motor reminds me of the TP line of steel can motors. Weird 9n-6p config, definitely not comparable to BW's.]
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Old Jan 15, 2011, 02:51 PM
Expo is built into my thumbs
Hance's Avatar
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Motors are here havent opened the box yet. I have the flu and haven't been off the couch in two days.
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Old Jan 17, 2011, 05:38 PM
Foam, foam on the range....
didge's Avatar
Adelaide, Australia
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Originally Posted by Hance View Post
Motors are here havent opened the box yet. I have the flu and haven't been off the couch in two days.
Hope you're feeling better soon!

My motors haven't arrived yet, they were shipped a week ago.

Cheers
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Old Jan 17, 2011, 06:20 PM
Expo is built into my thumbs
Hance's Avatar
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Originally Posted by didge View Post
Hope you're feeling better soon!

My motors haven't arrived yet, they were shipped a week ago.

Cheers
I am getting a little bit better but wow this is the sickest by far I have ever been from the flu

So people were wondering about the wind termination etc for the motors I ordered. Can you help a dummy out and tell me how figure it out ? Or is it easiest to just post photos ? I have rewound a few but I am really a beginner when it comes to this. Holiday today so I couldn't get the motors from the post office hopefully tomorrow I will be able to go get them first thing.
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Old Jan 17, 2011, 07:36 PM
Jack
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Originally Posted by Hance View Post
I am getting a little bit better but wow this is the sickest by far I have ever been from the flu

So people were wondering about the wind termination etc for the motors I ordered. Can you help a dummy out and tell me how figure it out ? Or is it easiest to just post photos ? I have rewound a few but I am really a beginner when it comes to this. Holiday today so I couldn't get the motors from the post office hopefully tomorrow I will be able to go get them first thing.
If all of the ends of the windings are divided into three groups that go to the ESC connectors it is a Delta termination.

If some of the wind ends are gathered into a group, soldered together, insulated, and left to one side as a bundle of sorts the termination is Wye (aka "Y" or Star). The "Y" bundle would be in addition to there being three groups gathered to go to the ESC connections.

If the stator has 9 arms it is not a DLRK wind as that requires a 12 arm stator.

A number of smaller strands that are kept together as the turns are wound is considered the same thing as a single strand of wire. It confuses the eye somewhat to look at it when you first see it. Multi-strand winds are done because it is supposedly easier to wind with and it also eliminates the need stock the winding wire in a larger number of sizes. They simply use as many finer strands as can be fitted or as are needed to be equivalent to a single larger strand.

Jack
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Old Jan 18, 2011, 12:25 PM
Expo is built into my thumbs
Hance's Avatar
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Went to the doc today I was just hurting to much. Hydrocodone cough syrup is awesome.

Ok as far as the motors go. Looks like a delta termination to me, 12 stator poles, 14 magnets, multi strand wound with 4 strands of wire got no idea what size it is.
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Old Jan 18, 2011, 01:29 PM
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Last time I checked, they came with a random mix of 9 and 10T stator poles (sometimes all have 10T... factory morale must change day to day), 4strand, 32awg trashwire (the stock choice for chinese multistrand winds), wound using the delta variant dLRK, and terminated delta. Let us know if there's glue on those wires please.

Kev
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