Replies to This Discussion

Permalink Reply by Ed Windham on December 15, 2010 at 11:00am

I will ask an uninformed question.  Have you individually calibrated the ESC's using just your transmitter, receiver, esc and motor?  I have experienced similar problems when I thought that I had them correctly calibrated when they weren't.  If you have already done so, then I will defer to those with more experience here.  I hope you get it up and flying soon.

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Permalink Reply by EUGEN MILJAN on December 15, 2010 at 11:06am

Yes. That step I forgot to mention... I did that before I checked with my oscilloscope.

Thank you for trying.

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Permalink Reply by Stuart Florence on December 15, 2010 at 1:05pm

I had a dud ESC in mine - the BEC portion worked, but it did not detect the receiver - replaced it and all works well - I dont think these ESCs are the greatest quality, so a few seem to be DOA or faulty.

 

- Could also be bad solders- the motor solders are terrible and should be redone - I just redid mine today after the glitching problem. Not sure if solders on the ESC would cause your symptoms.

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3D RoboticsPermalink Reply by Chris Anderson on December 15, 2010 at 1:20pm

Yes, once you've checked your solder joints on the ESC-Motor side (wiggle them with power on--careful to avoid the prop!) to see if you get intermittent results and re-calibrated the ESCs, if you're still having trouble with one you should get it replaced.  I'm getting about a 10% failure rate from HobbyKing ESCs, so it does happen.

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Permalink Reply by EUGEN MILJAN on December 15, 2010 at 4:26pm

Thank you guys,
That is what i suspected, but since I was so happy about the flight with my arducopter, and fahpah does not have these spare ESC's In stock, i am a little bit dissapointed. I don't want to buy new set of 4 ESC's from HK so i have to wait :(

Eugen

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Permalink Reply by DougB on December 15, 2010 at 4:41pm

Eugen,

To eliminate a similar problem I had to replace all the ESC connectors and the motor side connectors and the red ones coming from the ESC and the ones on the power board. After doing all that everything worked well.

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Permalink Reply by EUGEN MILJAN on December 15, 2010 at 10:30pm

Thank you Doug :)

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Permalink Reply by Stuart Florence on December 16, 2010 at 2:23am

I am running a turnigy plush 18a for the one ESC that popped and it works exactly the same. Seems to be same type ESC will work as well. Ie don't all have to be exact.

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Permalink Reply by EUGEN MILJAN on December 16, 2010 at 4:01am

I have tried with one 30A I have from Heli, but after calibration it still couldn't fly. It just had more RPMs then the rest.

Maybe if I have 20A then it would work the same?

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