Bitcraze Forums

Hi

brush motors deteriorate after long use, and crazyflie also uses brush motors.
recently, my crazyflie seems to be getting unstable during flight.
Is there any way to know which motor I should replace to new one in crazyflie?

Hi t.yoneda!

You could try running the propeller test in the cfclient (under the console tab)!

thanks jonasdn!

I am aware of the propeller test and frequently test motors and propellers with it.
however, the crazyflie flips in flight

video (google drive)
I am using a lighthouse and the battery is new, bought a month ago.
topics I referenced
Tips about how to storage your LiPo Battery
Voltage sag on old batteries resetting the LH deck


in addition to the propeller test, I use the plotter to check the power output of the hovering crazyflie motor to see if there are any abnormalities (too high/too low, etc.).

You can flick the propeller with your finger so that it spins for about 1 second. Usually you will hear and feel the quality of motor + propeller. A propeller that is unbalanced, if the shaft is bent or the motor is worn out, will not spin smoothly or it will vibrate. This is a sign that it needs some love
Also check if there is hair stuck between the propeller and the motor, that is a pretty common problem.

thanks kristoffer and jonasdn
OK, I'll try some more