First Build flips on takeoff

cookie1985

cookie1985

Active Member
Hi Community,

I have been building my first quad, and when I have gone to test it, it flips on takeoff.

I have the below specs:
openpilot cc3d
4 x DYS 2830-14 750kv
4 x 14x4.7 props (cw & ccw)
Hobbypower simonk 30a esc w/ bec 490mhz
Turnigy 30-40c 1000mah 4.s (testing battery)
frsky x8r reciever
taranis plus transmitter

I have gone through the calibrations settings on openpilot, checked the neutral points, however when I apply power, it flips on take off.

I have checked the following:
- Checked and double checked motor spin in right direction.
- Checked props are on the right motors.
- Checked the orientation of the cc3d controller.
- Checked the gyro was level on the surface.

I have been on youtube and found the above tips, but it still occurs...

I have also found one of my motors seems to lag behind, so I replaced it.

I am fresh out of ideas... any help is appreciated.

screendump 2.png screendump 3.png screendump 4.png screendump 5.png screendump 6.png screendump 7.png
 
cookie1985 said:
Hi GJH,

Yes, i did, i unplugged all the escs and checked this.

Do you think it maybe a bad batch of escs or a bad esc?
Click to expand...


Unlikely, try testing the ESCs individually without props. You could plug them directly into hte PWM output of a receiver if you have one, if not you can use the FCB.

Also might try to calibrate the ACC and Gyros.

Can you get a video of it?
 
Thanks for the help, i will record a video and send it through.

Also this might be a point of note, when i have the motors spinning up, they make a "tapping sound" every so often?
 
cookie1985 said:
Thanks for the help, i will record a video and send it through.

Also this might be a point of note, when i have the motors spinning up, they make a "tapping sound" every so often?
Click to expand...
I am taking some apart now that have little balls of solder in them, think it got in as some solder can become airborn, but I'm sure that is what these would sound like as the solder caught in the motors.
 
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