My Drone won't fly - keeps crashing

@Jai.GAY I have done the motor tests and it works fine. I’ve also verified the connections to PixHawk. Here is the video of the motor test.

Video: Motor Rotation Test.mp4 - Google Drive

@amilcarlucas I tried using the Methodic Configurator, but I’m getting this error.

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Is SERIAL0_PROTOCOL = 2 ?

Do you have ArduCopter 4.3.5 ?

YES, Serial0_Protocol is 2. Arducopter Version: 3.6.8

Update to ArduCopter 4.5.3 ASAP

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I updated the bootloader and I am inside the methodic configurator. Thanks. I’ll follow the steps and let you know

I find it hard to tell, but to me it looks like at least motor 2, 3 and 4 are rotating the wrong way

Looks like Motor 4/B is going CCW.
It amazes me how many people get this dead simple process wrong.
“I triple checked…” and then it’s wrong still.
Do clocks turn different ways in parts of the world? Is there another meaning to counter?

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@dkemxr have a looked at this video. It’s the same video I shared earlier but I’ve slowed down Motor B now. The Motor B is rotating in CLOCKWISE direction right?

Video Link: MotorB_Slowed - Google Drive

It does look right in that video. Post the parameter file.

Very old firmware.

Very good, you got a few basic things correct, motor order, motor spin direction, motor spin min and arming values, and drone heading. As @amilcarlucas said, the next is to get your configuration right for your drone before the next takeoff to further prevent and reduce crashes.

One thing to note, when is time for the next takeoff, your motor shaft is not a self-lock thread for the propeller, like the household stand fan, you must double-check the propellers are not slipping when the motors spin. Make sure you tighten enough. Also, the XY center gravity (CG) of the drone is as close as possible to the center of the four motors.

Overwhelmed by the process, impatient, and excited to fly. Add dubious 30 minute tutorials on YouTube and a Speedybee FC and you get another “My drone crashed HELP” thread. Can’t blame them too much.

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Yes, those do seem to be the common denominators. So many also seem to completely miss the available Ardupilot documentation and instead navigate to some monetized resource.

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@amilcarlucas @Jai.GAY @dkemxr Can I say this is my first flight? Just few seconds up in the air, couldn’t hold it longer. I really need to make it stable. How do I calculate the maximum flight altitude?

Video Link: DroneFlying - Google Drive

You do not need to calculate the flight altitude.
What you need is to follow the procedure explained in the software.

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I can’t imagine a reason why max altitude would be important to you at this point. A suggestion; get off that small enclosed area and into an open area. You are clearly a novice pilot and will need a lot more space than that.

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This is the first time I’m making a drone, flying a drone. Thanks a ton @amilcarlucas @dkemxr @Jai.GAY. You were really helpful, I gave up long back, but you guys made me fly it. Thank you.

I’ll drop in a comment if I face any issue!!

Not really important, just curious.

It’s a relatively advanced topic but you can determine this most easily from eCalc (google it). But, you have to understand what thrust/weight means and what’s required for stable flight.
And that craft you built has the worst quality components you can buy so forget about this.

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I am concerned about the drone vibration, you can find it out later, anyway, you should be here. Continue reading and use the Methodic Configurator to manage your configurations and steps. If you need someone to help you during flight tests, like flight mode switching, etc, get one to help you. Safety first.

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The biggest problem is the motors are spinning in the wrong directions. The motors should spin so the leading edges for the props are spinning IN towards the “nose” and “tail” of the quad. To get the motors spinningin the correct directions, swap TWO motor leads on each motor.

Also the 5200 mAh battery is way too heavy for that frame and motor combination. Optimum performance with this quad is about 8 minutes on a 3S 2200mAh LiPo.

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