Weak Motor?

K

Kremit

Member
I've built a 250 drone, everything seems to be working. I've done a 24" hover, moved around at very low speeds, things seemed to be working, but then the coptor started diving to the front left. I'd be in a hover, and bang, it'd on the ground. The last time, it broke the prop, so I replaced it. With the prop replaced, yes, it's the right direction, I arm it, the props start spinning, and as soon as I try to give it throttle, it flips over on motor 3. Holding it in my gloved hand, I can throttle it up and the motor obviously cuts out under load. Is it possible to have a motor 'go bad' like that? I checked all the ESCs, the solder connections and wiring.
I'm stumped... short of replacing the motor, I'm not sure what to do.
 
Hi mate an easy way to check is to move the motor so it's on a different esc ,if it still does it then it's the motor
 
What kind of motor? Flight control board? I had a Chinese clone of an omnibus f4 board start doing this and I thought it was the cheap racer star motors, but then the board started smoking and then it stopped working all together. I replaced the board but kept the motors and the quad still flies great.

To sum up my post, a poor quality fight control board can cause your issue.
 
Go into blheli suite & check all four esc's have the same min & max endpoints.
Except for some littbee I use the same esc on all build. But sometimes even though the same they come with a few setting slightly not the same. I had a motor not kick in till 70% throttle till I brought the min endpoint down to 20,same as others.
It may be this. If not try what holtneil says.
 
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