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« Reply #25 on: January 29, 2014, 08:04:22 PM »
rcrcnitesh
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Update got the c clip removed by an rewinding shop owner.
Cant find from where to start unwinding.
CAM00248.jpg
Re: Problem with Avionics motor.
* CAM00248.jpg (25.62 KB, 800x600 - viewed 541 times.)
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« Reply #26 on: January 29, 2014, 08:08:56 PM »
rcrcnitesh
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More pics
Its 12 pole 14 magnets.
How to unwind cant starting point of the wire.
CAM00246.jpg
Re: Problem with Avionics motor.
* CAM00246.jpg (38.44 KB, 800x600 - viewed 562 times.)
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« Reply #27 on: February 01, 2014, 03:00:40 PM »
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Actually now the problem is I can't remove the wires from the stator only one tooth and from another a tooth only one wind everything is stuck and the windings can't be removed.
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« Reply #28 on: February 01, 2014, 05:48:10 PM »
manojswizera
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Nitesh, Instead of asking so many questions, Search a little bit .

Go to this thread, you will get your max questions answered.

http://www.rcindia.org/electric-power/can-this-bldc-motor-be-repaired/
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« Reply #29 on: February 01, 2014, 07:57:05 PM »
rcrcnitesh
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I read the whole thread already.
Can i cut the wires.
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« Reply #30 on: February 02, 2014, 09:25:12 AM »
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dear nitesh.... first check if winding need to be redone??

as per pic they seems to be OK.... what is wrong in winding?
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« Reply #31 on: February 02, 2014, 10:34:16 AM »
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Actually it is melt.
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« Reply #32 on: February 02, 2014, 11:27:14 AM »
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When inverted, down is up, and up is expensive…
Have you got the exact coil?
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« Reply #33 on: February 02, 2014, 12:45:47 PM »
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Didnt get you
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« Reply #34 on: February 02, 2014, 12:59:32 PM »
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ok if its melted .... search on google with rewinding the brushless motor .. u will find relevant info.....
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« Reply #35 on: February 02, 2014, 01:14:59 PM »
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Have seen multiple videos and threads. My motor is a dlrk wind.
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« Reply #36 on: February 10, 2014, 02:23:47 PM »
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Dear sir the above motor u'd specified would provide the thrust mentioned at the rcbazaar site when we use the given combinations or its just hypothetical data.....do we get this thrust at 100% throttle or at 50-60% throttle only
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« Reply #37 on: February 11, 2014, 04:15:32 PM »
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The thrusts typically mentioned in motor specs would be at WOT with the given prop and input voltage. To measure actual static thrust, the scale test is a simple way of doing it. This is where the plane is tied to a spring loaded kitchen weighing scale, and see how much the plane can displace the scale.
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« Reply #38 on: February 11, 2014, 06:14:47 PM »
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DEAR sir thanx for ur reply but plzz try to xplain again about the scale test and if there is any theoretical calculations with which we can get an idea if thrust produced by motor at given voltage and prop size
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« Reply #39 on: February 11, 2014, 06:18:55 PM »
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Also sir in the rc bazzar site i observe that the combination provided by the companies especially avionics motor was very much hypothetical for eg in one of the motor C3536/1900kv they are promising thrust of 1200gm with 3s and 9*4.7 props with esc of just 30 amps when at load condition motor ddraws around 37.33 amps .......so how can i thrust there data and buy a product.....try to xpalin sir
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« Reply #40 on: February 11, 2014, 06:34:13 PM »
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Theoretical ? Something like this ?

http://www.rcindia.org/electric-power/how-to-calculate-the-thrust/ (see link in reply #1).

Basically you have to do a bit of searching.

Also, when you talk about a product, please post a link here, so that we all can verify what you are saying, and point out anything that you may have overlooked.

And you are right, some of the ESC choices listed seem wrong.  For example, for this motor below, there are multiple combinations where the peak current at load is higher than the ESC rating, and this is not a good thing.

http://rcbazaar.com/products/1908-avionic-c3536-kv1100-brushless-motor.aspx
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« Reply #41 on: March 26, 2017, 02:08:24 PM »
rcrcnitesh
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Hello guys,
A small update with the rewind of this motor.
I want cleaning my room when I stumbled upon this long forgotten piece of metal, I decided to make some use of it. I've been able to remove the stator with the windings. But the thing is I am not able to find the bearings and the c clip for this motor. Anyone knows where can I find it?
https://uploads.tapatalk-cdn.com/20170326/3490d354d3be25ba870d46c21f80b707.jpg
Problem with Avionics motor.

https://uploads.tapatalk-cdn.com/20170326/82cc936d9e17504ac83977e6634669de.jpg
Problem with Avionics motor.
https://uploads.tapatalk-cdn.com/20170326/f0c1ea4d3fc77a38c45c2038bb099d85.jpg
Problem with Avionics motor.


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« Reply #42 on: March 26, 2017, 02:17:54 PM »
rcrcnitesh
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There is another problem. While removing the windings I was getting frustrated and I caused some damage to the stator removing some of it's insulation and also a strand of two of us poles has come out.
https://uploads.tapatalk-cdn.com/20170326/97fe7367fd9ef068e5efb10e7f944ed5.jpg
Problem with Avionics motor.

https://uploads.tapatalk-cdn.com/20170326/dc0179d186f1ed4639bfe443503d73f0.jpg
Problem with Avionics motor.


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« Reply #43 on: March 26, 2017, 02:18:05 PM »
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U can find c clip at computer processor fan which is while plastic . And they work very well
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« Reply #44 on: March 26, 2017, 02:19:38 PM »
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Re:
A computer processor fan. Hmmm. Will it fit? I'll surely try it.

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« Reply #45 on: March 26, 2017, 02:22:31 PM »
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U can use very small quantity of araldite for better insulation. Please check with DMM continuity tester and check with stator and coil.
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« Reply #46 on: March 26, 2017, 02:27:23 PM »
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Definitely processor fan is 3mm shaft. Just try it
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« Reply #47 on: March 26, 2017, 02:30:43 PM »
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Another way to use you motor is you have change motor shafts position. Since it is backward, u can use it with forward shaft in pusher configuration without c clip.
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« Reply #48 on: March 26, 2017, 03:09:59 PM »
rcrcnitesh
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Re:
Thank you so much. I'll try the c clip from CPU fan. Now what should I do about the bearings and the grub screw? Also insulating with epoxy? How? Any videos or articles?

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« Reply #49 on: March 26, 2017, 07:32:43 PM »
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Please mention what happens to bearing and grub screw? And insulation? Any pic
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RC India  RC Equipments  Electric Power  Topic: Problem with Avionics motor.
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