Motors wont turn

Hello,

I have been pulling my hair out for a week now.

I have a 250 quad. Came with a CC3D board. Flew fine.

I bought this set up hobbyking.com/hobbyking/stor … APM.html

Supposed to work with ardupilot.

I did the firmware install, all the different calibration steps. My radio set up is a Jeti DS 16 with a 6 channel Jeti receiver. Esc’s are plugged in normally , not ppm.
In the software, my radio shows up. All the sticks move as they are supposed to.
Flight modes show up.

Now when I go to plug in the flight battery. Everything seems to powers up fine.
The ESC’s do their song and cell count. But when I advance the throttle… Nothing happens.
motors don’t turn.
It does this outdoors to.

Any ideas why the motors wont turn ?

@Bdegan,
Please provide tlogs and /or data flash logs to help troubleshoot your issue.
Regards,
TCIII GM

[quote=“TCIII”]@Bdegan,
Please provide tlogs and /or data flash logs to help troubleshoot your issue.
Regards,
TCIII GM[/quote]
I am completely new to this stuff. How do I do that ?

Have you tried arming the quad first?
Throttle down and full right rudder for around 5seconds.

Assuming you have version 3.2 installed, you can download logs using mission planner over usb.
There is a tab under the HUD labeled DataFlash Logs, then download logs. Should be able to find them in the - C:\Program Files (x86)\Mission Planner\logs\QUADROTOR\1 folder as .bin or .log which can then be uploaded here.

I did try right rudder. I will try again holding longer.

I will also grab the log files later this afternoon.

Thank you

Also try arming with it plugged into your pc with mission planner running. watch the status window tope right panel for messages. You may have a pre arm check failing and it will show there.

Obviouly don’e throttle up in this condition unless safe to do so (props off, or tied down and clear)

Ok,

Frustration is growing. I can not get this to work.

-I have reinstalled the firmware ( 3.2 ) three times now.

  • Gone through all the calibration steps for both controler and transmitter 4 times.

  • tried throttle down, rudder right for up to two minutes.

  • Have tried the ESC Calibration tutorials.

  • I can not get the motors to spin.

  • tried every setting and switch position.

  • I can not find any log files. Even went looking as per the instructions above.

  • The folder where any log files should be … is empty.

  • I can not post any log files because they don’t exist ???

About to say the heck with multirotors …

and 8 haven’t even tried FPV yet… Good grief !!!

That almost confirms that it’s not arming as, unless you change it, logs don’t start until it gets armed.
Did you try arming with it plugged into your pc with mission planner running as RabbitStu suggested as that would show any PreArm errors in the hud.

I am sure it’s something stupidly simple I am missing or not doing right .

I take full responsibility … I said I was new to this stuff. I primarily fly giant scale planes…
That should explain it all LOL

[quote=“MarkM”]That almost confirms that it’s not arming as, unless you change it, logs don’t start until it gets armed.
Did you try arming with it plugged into your pc with mission planner running as RabbitStu suggested as that would show any PreArm errors in the hud.[/quote]

Yes, both with and without the battery connected .

I am sure it’s a simple setting I have missed.

[quote=“Bdegan”]Hello,

I have been pulling my hair out for a week now.

Any ideas why the motors wont turn ?[/quote]

I am having the same experience. However, fumbling around I discovered that it won’t arm if it fails Flight Data checks. If it were to arm having failed checks it would flip over self destruct in from .7 to 1.3 seconds. BUT you can:

  1. Try to install a prior firmware set at Initial Setup. I have had it arm after installing earlier set 3.0.1.
  2. Disable arming checks to establish the motors do turn.
  3. Mess around with Standard Params under Config Tuning and sometimes that will verify life.

I am beginning to think all the Open Source hype is just another term for untested buggy software piled up in a heap with no consistent thread. Of course you can’t do much of this above without first accomplishing the prior steps becasue those secondary screens are hidden. I even tried everything six times ad turned the transmitter off and pulled the USB plug and the motors sprang to life at top speed and could only be killed by unplugging the battery.

Good reason to never pay with it with the props on …

Gandalf got stuck and quit months ago …

S

LOL thanks

I can say that I haven’t had the props installed since I flew it with the CC3D board :wink:

I have seen to many… “oops” with electric aircraft in general during set up

Well to be fair, the fail safes against arming are wise. If a quad jumped up in your face it could be a life changing event.

It is a statistical fact that if one inverts the mean time between failure of every component in a system and added those together we would find the probability of an error to be very high. Such an error here could be dangerous. It is also quite likely.

So it won’t work until everything is right.

S

Yeah…

Now, just to figure out what that one variable is that is causing me my baldness LOL

Just put it down and come back to it later. It seems like everyone knows something yuo don’t but they are just the ones who kept coming back.

S

Finally got it to arm and the motors to spool up.

For whatever reason, if i hold full right rudder. It won’t arm.

I have to hold right rudder just a bit less than full. Then it will arm. Strange … but it works.

Hopefully I can get outside with it tomorrow. Get a gps lock and try it with the different flight modes.

Did you calibrate your radio. Does your full rudder control value look sensible in the cal window?

sent from my phone so apologies for any typos

[quote=“RabbitStu”]Did you calibrate your radio. Does your full rudder control value look sensible in the cal window?

sent from my phone so apologies for any typos[/quote]

Yes, recalibrated the transmitter several times. Tried a number of different end point settings between 100 and 150%
Recalibrated each time. The values in the software and the green bar display would stop at the same numbers no matter where I would set up and calibrate the end points.

Not one of the green bars will travel the full length of the scale. Is it supposed to ?

Also noticed another weird thing.

Looking at the those green slider displays. If I push the sticks all the way to the end and hold it there.
The green slider display travels to its value. But then returns to neutral after a second of holding the stick all the way over. Throttle, yaw, pitch and roll all do it.
Push the sticks in any direction, hold it there. And the on screen display returns to neutral after a second or two.
If I hold the sticks just off of full throw. The green bar display will hold its position with the stock position.
But if push full on the stick, the display returns to neutral.

That’s very not normal.
It’s almost like the end of your stick travel has no pwm signal to send to the receiver.

I don’t know how easy it is to do on your setup, but could you connect a servo to your receiver and see how it reacts when you go full stick defelction? See if it also returns to neutral like the green bars do.

Works like normal with a servo. I had that same receiver in another plane before.
Also worked perfectly with the cc3d controller before I put this one in.

I will play with the radio end points again tonight