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« on: November 18, 2016, 09:06:34 PM »
PRANAVK09
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Is there anyone who can repair or rewound bldc motors and some ESC 30amp.
And also can anyone repair imax b6ac charger. Help Me
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« Reply #1 on: November 18, 2016, 09:21:28 PM »
PRANAVK09
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Here is one pic :-

IMG_20161118_211945.jpg
Re: Repairing burnt bldc,esc
* IMG_20161118_211945.jpg (69.01 KB, 450x800 - viewed 534 times.)
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« Reply #2 on: November 18, 2016, 09:22:32 PM »
PRANAVK09
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And charger at
http://www.rcindia.org/batteries-and-chargers/imac-b6-blanking-out/
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« Reply #3 on: November 19, 2016, 10:08:36 AM »
Pawan123
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Those motors are extremely cheap. It's better to go buy another one off Amazon. From what I know they cost about 400 and an ESC costs approximately the same.
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« Reply #4 on: November 19, 2016, 12:07:14 PM »
PRANAVK09
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@pawan
You are correct . Thumbs Up
And what do with charger.
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« Reply #5 on: November 19, 2016, 04:42:40 PM »
Balakrishna Reddy
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If your b6AC charger is burnt then you should probably try with a 12V dc supply.
Most of the times the power regulating circuit will be burnt and rest of the device will function fine .So you can try your luck with a DC supply.
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« Reply #6 on: November 20, 2016, 08:09:08 AM »
PRANAVK09
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@balakrishna sir
12v  2amps  will be fine? thanks
I also have 16v 1.5amps and one 12v 1 amps. Adapters.
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« Reply #7 on: November 20, 2016, 10:50:18 AM »
Balakrishna Reddy
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First you need to check whether your charger is working by just plugging in a 12V to 18V voltage source. Amperage is only needed when you want to connect a Lipo to charge.
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« Reply #8 on: November 20, 2016, 11:39:53 AM »
PRANAVK09
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Yes sir ,
It works with all the above adapters but shows voltage error when charging lipo at 1c or more.
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« Reply #9 on: November 20, 2016, 11:47:06 AM »
Pawan123
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That's because your adapter can not provide enough current to charge your battery at 1C, use a 12V 4A adapter it should work fine.
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« Reply #10 on: November 20, 2016, 04:12:00 PM »
PRANAVK09
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OK I'll try to upgrade.
Will 12v 5A is OK ? Since that is locally available.
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« Reply #11 on: November 20, 2016, 07:17:04 PM »
Balakrishna Reddy
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Yes 12V 5A is just fine. However I suggest to go with 18V 5A so that the efficiency of the total system will be maintained high if you are charging a 4S lipo or so.
ESC's are not the right thing to be repaired because you may actually accidentally etch out copper traces with your iron and you may end up wasting time on it. Better would be to buy a new one.
Motor winding can be done but its a bit difficult task to make them very tight with out actually shorting it with iron stampings. If done so then the motor may not start depending on what phases are shorted or may run with reduced efficiency or at higher temperatures because of increased eddy currents.
If you want that motor just for prototyping and not for some serious work then you can do it.
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« Reply #12 on: November 21, 2016, 09:26:02 AM »
PRANAVK09
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@ Balakrishna sir,
I will definitely get new motors. Grin
but try to do this to learn new things.
Can you please put some source info about how to do it?
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« Reply #13 on: November 21, 2016, 06:44:04 PM »
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Mostly the N-FETs get burnt in the ESC , you might replace the burnt ones from a very same piece
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« Reply #14 on: November 22, 2016, 10:02:01 AM »
PRANAVK09
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Ok I will try to do it. Head Scratching
One of the ESC 30A flightline got off in mid of the flight at height around 100m.
Any suggestions
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« Reply #15 on: November 22, 2016, 01:44:50 PM »
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if you are looking for b6 parts you can get them cheap in our used items section

www.hobbysea.com
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« Reply #16 on: November 22, 2016, 04:56:47 PM »
Voice of deaf
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Ok I will try to do it. Head Scratching
One of the ESC 30A flightline got off in mid of the flight at height around 100m.
Any suggestions
There could be many reasons. Maybe the high voltage cutoff , or the overdischarge or just too many to guess. Try to safely open the shrink wrap and upload sone clear pic

Sent from my Lenovo A7010a48 using Tapatalk
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