Problems again!

[agrs1974]

Folks I am running a diatone 150 with eachine motors,  little bees 20amp and a naze 32.

These F**king end points are just grif! !.

I set my low throttle to 1000 mid to 1500 and top to 2000

Calbrated the esc';s.

On the motor tab I moved the motirs till they were spinning consistently.  1027 I think. 

Didn';t calibrate.

I will add some footage later.  On the turn the quad dips violently to the one side.

In fff it seems OK.  It';s when I slow down and turn it';s out of control.

I have tried everything I can think of
please help.

[Cheredanine]

Not sold this is an esc issue mate,
When you say "slow down and turn" do you mean yaw or banked turns?
On the chance it is esc based: update to latest blheli, just out.
Have you got motor stop enabled?
What FC software are you running?

[agrs1974]

Probably both

Motor stop enabled yes.

I will update the escs to see if that makes a difference.

It';s the latest software. 1.13 is it?  Done the same with the last fc software too.

[Hozza]

My min throttle is set to 1040 on my littlebee 20a,with min command 1000, I think would need to look but I';m sure that is what mine are set at,.

[agrs1974]

My min throttle is set to 1040 on my littlebee 20a,with min command 1000, I think would need to look but I';m sure that is what mine are set at,.

I have tried all different settings.  Think I';m going to flash the escs first and see what happens

[Elmattbo]

Drop the full throttle to 1850. The esc';s will be calibrated between 1000 and 2000 on the motors tab but you need a little headroom so a motor can exceed the others when at full throttle for maneouvering.
That would only be an issue when at full throttle though, which is unlikely when in fff or turning unless you';re doing a dead stop.


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[agrs1974]

Thanks for your input mate but its happening at low throttle.

Here is the DVR footage
https://www.youtube.com/watch?v=ZapxtBApATM

[Cheredanine]

Really stupid question but how much camera angle have you got on the thing?

[agrs1974]

Really stupid question but how much camera angle have you got on the thing?
[/quote

20 degrees maybe?

[Cheredanine]

Really stupid question but how much camera angle have you got on the thing?
[/quote

20 degrees maybe?

And you are not flying BF with any cam angle compensation on yaw?

[Elmattbo]

I had an issue that looked very similar on a qav250 last year. I had aeroguards, basically a side panel along the the quad and it caused some aerodynamic interaction with the props resulting in a spin out, usually during fff. Have you got anything like that fitted that we could rule out?
https://youtu.be/dsEc_rh7irw


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[agrs1974]

And you are not flying BF with any cam angle compensation on yaw?

Dont get you mate?

[agrs1974]

I had an issue that looked very similar on a qav250 last year. I had aeroguards, basically a side panel along the the quad and it caused some aerodynamic interaction with the props resulting in a spin out, usually during fff. Have you got anything like that fitted that we could rule out?
https://youtu.be/dsEc_rh7irw


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No mate

[Elmattbo]

Dont get you mate?

You probably haven';t if you';re not sure what it is, but he means this...

http://youtu.be/gEcWxHIH378

Is the problem always a drop to the left? If so could be the front left motor. From what I can tell there';s no obvious fix so you';re going to have to fault find. First try a fresh set of props as even a minor ding can cause issues. Then swap the front two motors and see if the problem moves with it. If not, swap the back 2. Also check your FC mounting.
If it was me, I';d start looking for a hardware rather than software issue. Give the quad a service and make sure everything is in order. Even check the screws in the motor mount for correct length. Good luck - I hate problems like this!!! I had a loose FC last month and it took me AGES to find a fairly obvious fault!!!



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[Cheredanine]

Dont get you mate?

are you using betaflight?

[agrs1974]

I will watch that video thanks.

I am going to strip the quad down to see what';s what.

Cleanflight Cher mate.

[Cheredanine]

Hmm in that case inclined to agree with elmattbo, likely to be hardware,
Flashing with latest blheli is a good start, but otherwise if it is always the same corner that drops most likely the motor or esc on that arm

[agrs1974]

Thanks
Will keep you posted