Comments

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  Bradley J Carr March 20, 2012 at 9:35am

  Yep I have charged that battery.  One question is how do I make the throttle point lower?
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  Ed Kirk March 20, 2012 at 9:19am

  Bradley,

  I really dislike programming ESC's but have had them get reprogramed when trouble shooting using different stick positions.  I haven't used the ESC's from 3DR, there is an instruction sheet in the Store for the ESC and it explains the programing process.  Check the programming to comfirm the ESC is properly programed if you haven't already done so.  Not just end points but the other "features" like low voltage cutoff and battery type.  I am assuming you are using a fully charged battery and have recharged it after hours of troubleshooting.  Things don't work right when the battery is low.
• T3

  Aerhead March 20, 2012 at 9:02am

  Bradley

  I think your low throttle setting was right on the edge of being low enough.  It started because the signals from the different output pins can vary a little and that's what got your ESC to start.  If it start it should be fine.  I would set the ESC throttle calibration lower.  Temperature can make the ESC PWM vary and you may see the problem again if you do not set the throttle calibration lower.  It has happened to me in the last five years that I've played with quads.
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  Bradley J Carr March 20, 2012 at 9:01am

  Thank you everybody who has help me with this.  I can assure you that there will be no lift off until I get the new ESC. and from that some more testing to make sure that its all good. 

  Ed, I might look into soldering all connections for the ESC's and other things to ensure that it is all good.  I had thought about that earlier and I might just do it while I wait on the ESC.
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  Bradley J Carr March 20, 2012 at 8:58am

  In a way I think Arehead was right when he talks about the throttle position not being low enough.  I did not do anything with the trim.  But plugging into a different position I heard one tone and then it started working.
• 

  Ed Kirk March 20, 2012 at 8:57am

  Bradley,

  I used to make up nice power distribution harness with seperate plugs for each ESC until one of the plugs was faulty and the ESC would fail.  Now I solder all the power wires and most of the time I solder the motor wires and not use plugs at all, good connections are critical.  It woud be prudent to replace the ESC unless you find a problem with the wiring.
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  Bradley J Carr March 20, 2012 at 8:55am

  Buy the way this is the 3DR kit that I bought with the 880kv motors.  I have no idea who manufactured the ESC.
• Dara Shayda March 20, 2012 at 8:55am

  I had a similar frustrating problem with 3dr ESC new years' eve. The problem was I did not understand the TUNES of the ESC, they make several tunes and you can get confused which was is the FIRST SERIES OF BEEPS, at any rate I finally tried all the possible tunes and gaps of silence and one worked on ALL FOUR motors. 

  The way I solved the problem was I placed my two fingers on the motor and felt the STRONGer vinbration of the correct TUNE. 

  Hope this is helpful
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  Bradley J Carr March 20, 2012 at 8:54am

  Yes chris,  If it was a airplane I probably wouldn't really concern me since you can land those on a dead stick.  But with a quad you have no room for error.
• Chris Mulder March 20, 2012 at 8:53am

  Bradley, I think that answered the question, ESC sounds dodgy... not sure I'd trust my quad using it 400 feet up...

  As the old wise ones say....."problems that go away by themselves, tend to come back by themselves"...