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Joshua Bardwell F4 AIO Flight Controller
#16
Guys I'm quite unlucky with these new FCs... Sad To the fact in this case it wasn't the FC maybe it was just my mistake. But I feel pretty unlucky with this build.

Today I successfully changed the previous F3 FC to the new Bardwell F4 but some months ago I also bought new ESCs (Racerstar Tattoo+ 42A) so I decided to to change the ESCs as well. There were no issues with new parts during the build and everything went well. The quick bench tests were also OK. Then I did a short hovering in my flat which was also OK. After it I put on my goggles because I wanted to test the video quality with running motors. The copter was still on the rug where I did the hovering. So I armed it again with Airmode. I played a bit with the throttle without the copter taking off when I see lot of smoke in the camera. I disarmed the copter and took my goggles off when I noticed motor #4 is smoking and burnt down. I was really afraid because my first thoughts were around the battery... "Fortunately" it was just a motor. But honestly I don't know what was the reason of it... Maybe the motor caught a small piece from the rug which overloaded it but I really don't know because I was wearing the googles when it happened. The incident did take no longer than 5 sec. The motors have been in use for months without any issue. The ESC #4 still looks perfect but I'm going to change it as well as I don't trust it in any more.
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#17
(18-Feb-2018, 06:38 PM)oleeg Wrote: Guys I'm quite unlucky with these new FCs... Sad To the fact in this case it wasn't the FC maybe it was just my mistake. But I feel pretty unlucky with this build.

Today I successfully changed the previous F3 FC to the new Bardwell F4 but some months ago I also bought new ESCs (Racerstar Tattoo+ 42A) so I decided to to change the ESCs as well. There were no issues with new parts during the build and everything went well. The quick bench tests were also OK. Then I did a short hovering in my flat which was also OK. After it I put on my goggles because I wanted to test the video quality with running motors. The copter was still on the rug where I did the hovering. So I armed it again with Airmode. I played a bit with the throttle without the copter taking off when I see lot of smoke in the camera. I disarmed the copter and took my goggles off when I noticed motor #4 is smoking and burnt down. I was really afraid because my first thoughts were around the battery... "Fortunately" it was just a motor. But honestly I don't know what was the reason of it... Maybe the motor caught a small piece from the rug which overloaded it but I really don't know because I was wearing the googles when it happened. The incident did take no longer than 5 sec. The motors have been in use for months without any issue. The ESC #4 still looks perfect but I'm going to change it as well as I don't trust it in any more.

This would get more veiws as its own topic in General Questions area or miniquad section.

Personally I test all my builds outside or on the kitchens tile floor. My first thought if you had done a couple tests on the rug preveous, you may have picked up some fuzz or something for sure. These things move around so much air. It only takes a hair twisted in a bearing a short while to ruin it.
Did you check motor temps after each hover? If it burned up only 5 seconds after arming I would suspect a seized or very heavily restricted motor.
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  • kaitylynn
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#18
My feeling would be that the motor's rotation was hampered by something.  When I first started, I had a few motors melt down due to leafy matter collect while flying.  The samples would eventually pull down into the cooling slots on the bell and poof!  Gained some mad motor changing skills after having the awesome confidence boost from everyone here Smile

The FC really is not putting any amperage to the motor, that is entirely ESC.  I have not lost one of those yet, it has always been the motor that has let go.  I would solder in a new motor and test again.

On a similar, but independent note...when landing, I always check my motors for any fodder that might have been pulled in on landing.  A grain of sand can ruin one pretty fast, not that I have ever actually had that happen Wink
SoCal Kaity :D
OMG, no one told me it would be this much fun!  Addicted :)
[-] The following 1 user Likes kaitylynn's post:
  • Drone0fPrey
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#19
To get the thread back on track... Wink

I just installed the JB F4 AIO FC into my NOX5R frame. Building on it was a dream! Pad layout is awesome and makes it very easy to route your wires.
Maiden flight was very smooth but I forgot my SD cards lol hopefully get some dvr today.

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The Obsession IS Real!
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  • sloscotty
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