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Archive for December, 2016
Posted by Late99 | Dec 03, 2016 @ 02:02 PM | 9,857 Views
I had three motors as good candidates for rewinding. One was my friends Turnigy 2730 3000kV (Red Wonder), second was my burned 1700kV Blue Wonder and third was an old DT750 motor that could have a higher kV of around 1200-1300.

I had rewound one motor earlier, so I was pretty confident that I can get this done. Still I wouldn't call rewinding as very easy or cost efficient - brushless motors are so cheap nowadays that these custom wound motors have to be the most expensive after this operation. Still it's nice to know that you can repair and even improve brushless motor with some effort.

I had 0,5mm (~24AWG) wire from my friend and also 0,4mm (~26AWG) in my own stocks. I decided that I should use these instead of getting more wire, which might end up unnecessary in the long run. This limited my options for rewind somewhat, but I still found potential candidates.

I used RCGroups forums on DT and 2730 as a reference and to give idea on possible combos for successful rewind.

Red Wonder @ 3000kV

My friend wanted this as 2S 3D plane motor and after a bit of researching I concluded that my best shot would be 10 or 11 turns of 0,5 winded DLRK WYE. What I ended up after test wind was 10 turns. The last turn was a bit challenge for me. I know some others are able to squeeze couple of more turns, but I'm just a beginner and my fingers were hurting already.

Tested at 8,3V (2S 1800mAh lipo not quite full)
  • 6x4 6,8A 54,5W
  • 7x4 11,1A 86,3W
  • 8x3.8SF 13A 100W
Blue Wonder @ 1700kV

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