check your ESC's...
in our project, the escs would often be a little temperamental and glitch up... we gave them a flick and made sure they were properly seated and it worked fine after that. But this would happen a couple of times....
if that doesnt work then good luck!!
I have had 2 crashes now.
The first i put down to a bad choice in Rx.
I've just had a potentially catastrophic crash hovering 3 metres in front of my face which flipped the quad into the concrete. Luckily it had done a full loop before biting the dust and without much inspecting can report that the injuries appear to be superficial - that's 2 from 2 get out of jail free cards.
My advice is to not bother flying your Arducopter anywhere for the time being.
There is a real risk of terminal damage, not to mention the risk of damage to anyone within a radius of who knows what from where the Arducopter shat itself.
The glitches other users have reported are real.
Until the situation is resolved by someone who can pin the issue down to a specific source, all Arducopters in this neck of the woods are permanently grounded.
Regards, from a very disappointed Rich
it seems I'm fighting the same problem.
Doug Barnett pointed me toward a good solution : change all the Deans connectors (as a starting point).
if it was a trace problem you should have voltage drop on all four motors, not glitches. If drop was important you should experience an ESC reboot (APM reboot too ?).
I don't think trace are a real problem, seing the (small) traces that are on some current sensors with 100A capabilities. Those are definitely not very big.
On Arducopter power board there is a weak point in Gnd trace, where they join in the rear side. This seems to me the weakest point of all the board.
you mean the rear side is not as good as the front side?
The ESC's will drop power when at 110 degrees Celsius. It will also reduce output power if throttle signal lost for 1 second - further loss of 2 seconds will result in output being cut completely.
After moving my ESC bullet connectors during operation (with no props on) i discovered that certain motors would glitch depending on which connectors i moved.
I have since removed all bullet connectors and have soldered the connections directly to each other. I then did the same test and the problem was no longer there. I then ran the quad for 10 minutes (still no props) and did not see one glitch. I did see that the right ESC was noticeably hotter than the rest, but still only 45 degrees C or so.
Fingers crossed that the glitching is gone forever.