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Old Nov 16, 2010, 06:14 AM
byte me!
0011000011001's Avatar
Joined Aug 2008
558 Posts
Actually its a floppu drive stator but i rewoun it, and it works PERFECTLY....?! kinda weird.. I musy have done something wrong the first few times...thanks for the help!!
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Old Nov 16, 2010, 06:17 AM
Life begins at transition
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Good to hear
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Old Nov 24, 2010, 10:42 AM
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Quote:
Originally Posted by jackerbes View Post
You have to be careful in describing what you have. Some call stator arms arms, some call stator arms poles, some call magnets poles, some call magnets magnets. And there are other terms used too.

If you want to be sure to be understood you almost have to specify counts on both and call the magnets by that name, then there is less ambiguity.

WOW! Those 1200 series motors are really neat. Over 7 Watts per gram continuous and nearly double that peak. Excuse me, I have to go down in the basement and kick all of my motors...

Jack
Sorry i'm new to this, Mine is the turnigy 3020 1200kv

http://www.hobbycity.com/hobbyking/s...idProduct=9378
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Old Nov 24, 2010, 10:46 AM
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Quote:
Originally Posted by Dr Kiwi View Post
I don't know about 24-pole, but maybe ask Steve Neu... his Neutron motor is 24-arm, 26-pole: http://www.neumotors.com/Site/1200_series.html
yap this is the one sorry i mixed up between arm n pole
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Old Nov 27, 2010, 09:56 AM
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I've had this 2730-1500kv for a while and fresh out of the box, it would only work part-time. I threw it in a drawer until I had some time to check it out. I unwound it this morning and found out why it was acting strangly. Some teeth had 9 turns, some had 10, and one had 11 turns. I think I'm gonna try another 21t 26awg with this one.
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Old Nov 27, 2010, 10:40 AM
I'm overcoming gravity!
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USA, NC, Huntersville
Joined Jul 2008
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I think I've changed my mind about the 21t26 wind. I need to use this motor on my piYak on 2s with an 8" or 9" prop. Any suggestions for a wind?
Maybe 12t 24awg wye?
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Last edited by Murman; Nov 27, 2010 at 10:52 AM.
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Old Nov 27, 2010, 11:00 AM
Dave North
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USA, CA, San Jose
Joined Apr 2004
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That might work with a 9" prop. For 8", the 10-turn was a good compromise with 24awg:

Tgy 10T 24swg ABC Wye Kv = 1721 Io = 0.68 Rm = .112
GWS 8040 DD Rhino 610 2S
9239 rpm @ 7.45v/8.64a 433 grams 15.3 oz/thrust 77.4% Efficient
Drive Calc: 475 grams 16.7 oz/thrust 80.5% Efficient

With the newer batteries that would pop harder, which should be just about perfect.


Dave
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Old Nov 27, 2010, 11:41 AM
I'm overcoming gravity!
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Thanks Dave, I'm going to be using 360-500mAh 2s packs. I should probably go with the 8040 prop to keep the amps lower shouldn't I?
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Old Nov 27, 2010, 02:37 PM
Dave North
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USA, CA, San Jose
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For a twelve-turn, the 9" should be fine. For a 10-turn, I'd stick with the 8".


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Old Nov 28, 2010, 08:07 PM
Sorry, but they're all toys.
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United States, WA, Bellingham
Joined Jun 2009
292 Posts
First dLRK!

Finally finished my first dLRK wind with this Black & Red Wonder. I rigged it up with the neat delta variant, 24g11T-D. Here's what I got out of it:

Battery: Rhino 2S 610 mAH
ESC: T-Bird 9

No load current: 1.04 amps
No load rpm: 24,400

With a GWS 5043:
Voltage: 7.0
Current: 10.2 amps
RPM: 16,300
Thrust: 330g

Badcock: 74.5%

Those numbers are taken within the first 1-2 seconds of achieving full throttle. Is that the standard approach, or should I wait a few more seconds? It seems that the numbers steadily creep downward so I'm not sure when it is "official".

Official or not, it works for me! Nice not listening to that whiny ABC squeal.
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Old Nov 28, 2010, 08:57 PM
I'm overcoming gravity!
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Good looking wind Eric. You had your work cut out for you with the insulation chipped off the corners of the teeth like that.

Dave, I was going to do the 10t on 2s with a dd8040 prop, but I decided to do the 12t instead and use a 9" prop. I'm bad about "borrowing" a motor from one plane to use on another and I really love the 12t ABC wye and 8040 on 3s for my scratch-built deltas so this would be a more versatile wind.
Now I've just got to make some time to get this done.
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Old Nov 29, 2010, 12:01 AM
Sorry, but they're all toys.
Eric Odle's Avatar
United States, WA, Bellingham
Joined Jun 2009
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Quote:
Originally Posted by Murman View Post
Good looking wind Eric. You had your work cut out for you with the insulation chipped off the corners of the teeth like that.
Funny I hardly noticed the chips as I was winding it. They really showed up well in that photo though. Maybe I made them worse as I was man-handling the wire. I still haven't broken that MD wire by pulling too hard!
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Old Nov 29, 2010, 10:24 AM
Dave North
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USA, CA, San Jose
Joined Apr 2004
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Yeah, those are some scary looking corners but you got away with it. Woohoo! Does look nice.

MM, I'll be interested to hear how it goes with the 9" and newer batteries.


Dave
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Old Nov 29, 2010, 03:38 PM
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Canada
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Bit confused when I count the winds it *seems * like some poles have 5, 2nd layer winds while others have 4 .
That just an optical illusion, or?
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Old Nov 29, 2010, 09:00 PM
Dave North
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USA, CA, San Jose
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It often looks that way due to the transit and how the first layer goes down on the second tooth sometimes. It has freaked me out more than once ...


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