Motor losing power

hosein_gh · December 19, 2019, 9:50pm

These ESCs are simonk

dkemxr · December 19, 2019, 10:58pm

Yes. Of the lowest quality with old tech components.

Hesh_Dan · December 20, 2019, 7:15pm

I just ordered BLheli ESCs . Would be receiving only after christmas.Will try and let you know know how it went. Thank all for your help. Sincerely appreciate it

Hesh_Dan · December 27, 2019, 4:41pm

I managed to get BLheli motors and I see that the motors are now running fine. But I still haven’t managed to get it off the ground. This times…I see that one of the motors top including the propeller comes off when it give throttle

dkemxr · December 27, 2019, 7:50pm

Are they self tightening props spinning the wrong way?

hosein_gh · December 27, 2019, 7:51pm

could you please send some images and a short video ?

Hesh_Dan · December 28, 2019, 9:53am

Yes they are self tightening props I guess. The black top tightens CCW and the propeller spins CW . The red top motors tightens CW and the propeller spins CCW . I am not sure if it’s the correct one. I have uploaded the pics and videos

Hesh_Dan · December 28, 2019, 9:55am

Yes. Here’s the link

Motor test video

Pics

hosein_gh · December 28, 2019, 11:51am

i cant see ant problem in video
try re calibrate ESCs and enable log when disarmed then send log file

Hesh_Dan · December 28, 2019, 12:13pm

I tried recalibrating the ESCs…still no luck. Here’s the link t the log

dkemxr · December 28, 2019, 2:57pm

I don’t see anything useful in the photos, videos or the log. When the prop nuts spun off was it when the props were accelerating or slowing down? I have seem this happen if active braking is turned on in the ESC’s and they rapidly slow down but usually only on self tightening props which you don’t have. Which ESC’s did you buy? Hopefully BLHeli32 versions.

Hesh_Dan · December 28, 2019, 4:13pm

The props nuts comes off during acceleration. I did buy BLHeli32 version ESCs .

Cheapo · December 29, 2019, 8:06pm

Looks like the motors are mounted on the wrong arms. Swap round the red and black. Check motor rotation so that the red top rotate CW and black rotate CCW then add the propellors accordingly.

dkemxr · December 29, 2019, 9:31pm

That’s not Arducopter Motor Order. Toy quad maybe. This is right, which Hosein posted earlier in the thread.

Cheapo · December 29, 2019, 10:50pm

The motor order may be different but the direction of rotation is the same. Red top motors spin CW and Black CCW. In the video they are reversed. This would explain the props coming off.

dkemxr · December 29, 2019, 11:07pm

The prop direction is correct. In the video it shows:
Motor 1-CCW-Red nut (RH thread, so he claims) In the video this motor doesn’t rotate so assumption.
Motor 2-CCW-Red nut (RH thread, so he claims)
Motor 3-CW- Black nut (LH thread, so he claims)
Motor 4-CW-Black nut (LH thread, so he claims)

These rotations would tighten the nuts if what he says is true.

Cheapo · December 29, 2019, 11:26pm

Perhaps he should just try it.

dkemxr · December 29, 2019, 11:33pm

Yes. The nuts loosening don’t make sense with the information provided. I have had self tightening props fly off off during rapid deceleration if braking is enabled on the ESC’s, which it usually is with units sold for racing mini quads. But he claims it’s upon acceleration so I don’t have an answer. As you say get it out of the house and fly it!

ambattuhari · December 30, 2019, 2:32am

In this scenario, one way to test is,
Remove props, place the prop nuts on the motors, turn one or two threads, & run the motors.
If it is not in the correct position, the nut will fall down(ejected from the motor !).

Hesh_Dan · January 3, 2020, 3:02pm

I tried and noticed that only top left arm (Motor 3 - CW - Black Nut) is coming off. The rest of the motors are ok