I've assembled my quadcopter, calibrated the ESCs, set prop direction, and when I tried to fly it one of the motors didn't work. Here's a video showing the behavior.
The battery is fully charged. I tried to connect the faulty motor to another ESC, but the result is the same.
Any ideas on what might be wrong?
I am getting the same situation on my octo. Each time I calibrate my ESC's I get a different motor stalling out or running slow. I have tried the APM2 ESC calibration and the direct-to-receiver calibration. Both seem to calibrate properly. As soon as I reboot the APM2 and Arm I get the same strange slow ESC's. Not always the same motors running slow either. Very strange...
In my case it's the same motor every time. I don't think ESCs have anything to do with this. I just need to know for sure if the the motor's fault.
Not sure what it is. I think I have two bad ESC's. The troubled ones are running very hot. A blast of canned air (upside down) causes them to run MUCH better. Eight new ones with SimonK code on order.
are they cheap motors? i had 2 out of six motors dead out of the box, well not dead but running slow and stalling,
if the problem follows the motor when you move it around then it must be the motor
Can't say they're cheap.
yes they are,
anything under 100 dollars is cheap
I have had the same issue with stottering motor, and it stottered on 2 different ESCs so I examined the leads going into the motor and discovered that one lead was broken. Managed to open the motor and get the lead soldered back on, and it worked again. Good luck!
Looks like one Phase is missing.
Could be bad soldering at the plugs or at the motorconnection.
Try to pull at the cables (not to hard!!) and watch the shrink hose. If it stretches, then there is the fault.
An Ohm-Meter would be helpful
Dont try to give full throttle with this fault, it will burn your ESC.