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Andy7:
19 Aug 2019 09:14:20
Good for you!  ~~
DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
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30 Jul 2019 15:26:34
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29 Jul 2019 20:14:10
DB that just means you have shed loads of props in the first place ;-)
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29 Jul 2019 18:53:33
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ched:
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My Crius V2 with MegaPirateNG 2.8R3 do the flip

Started by cuongvd, Friday,May 10, 2013, 21:03:17

Previous topic - Next topic

cuongvd


Changed my Crius V2 from MultiWii to Mpng 2.8R3, used the default PIDs, tried it this morning.

It was really shaky and flip right away.

What should i do with it ?

Thanks.
DJI flame wheel 450 kit with motor and ESC
Crius AIO Pro V2 with Mpng 2.8R3
BLheli firmware on DJI ESC

firey1

normally if it flips its an indication motors are in wrong configuration 
MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles

peter_a

Mission planner , cli > setup > motor

which pulses each motor in turn . ( check motor order )

Check the motor spin direction , eg clockwise , anticlockwise , clockwise , anticlockwise

check and calibrate the esc in block .

cuongvd

Motor location and direction is correct. Already checked.
I can bring it off the ground but just about 1-2 feet, but it really shaky then it flip
DJI flame wheel 450 kit with motor and ESC
Crius AIO Pro V2 with Mpng 2.8R3
BLheli firmware on DJI ESC

peter_a

I`m still in the stage of setting my hex up and learning how to set it up .

what start it flipping the wind ?
Does it start to rock and little and get more and until it flips ?

MY problem with it flipping was the esc calibration , i fixed the problem by doing all the esc`s in block instead of each esc , one by one.

Jumpy07

Quote from: cuongvd on Friday,May 10, 2013, 21:03:17
Changed my Crius V2 from MultiWii to Mpng 2.8R3, used the default PIDs, tried it this morning.

It was really shaky and flip right away.

What should i do with it ?

Thanks.


Check frame config in APM_Config.h
Check Motor Mapping
Check that you are in stabalise mode
Flips are extreme and nearly always caused by the above.. (assuming props on right motors / direction)
BNUC-S Pilot with PfCo /PFAW.
UAQ / CAA PfCo Instructor / Flight Assessor

"All that is necessary for the triumph of evil is that good men do nothing"

cuongvd

Dougle checked, everything is correct.
Try to bring down the P bit by bit. Now i';m at 0.03 for P for both picth and roll, It was at 0.175 by default.

Now I can hover it, but it drift around, can not stay in 1 place, but it level.
GPS is locked.

What should I do to keep it can stay ?

Thanks.
DJI flame wheel 450 kit with motor and ESC
Crius AIO Pro V2 with Mpng 2.8R3
BLheli firmware on DJI ESC

peter_a

I`m in the same stage as you starting off by learning now to get my hex to hover correctly.
My hex at first flipping and was very unstable , o.k I may have cheated by installing 29.1 .
But the main fault was esc calibration !!!!
The GPS doesn`t matter if you are flying in stabilise or acro , the GPS only come into play on loiter .
I think you have to increase your P gain from 0.03, because if you get it too low it get hard to control , you are doing constant stick movement.
if you can get it to srtay in the air doesn`t look like a setup fault .

ausi1972

Sunday,May 12, 2013, 18:39:34 #8 Last Edit: Sunday,May 12, 2013, 21:08:29 by ausi1972
Try starting off with my firmware and params files. They will get you flying stable at least with most frames as a good start:

For firmware settings and information files please see my public Google Docs folder:
https://drive.google.com/folderview?id=0B-B7PQy0joGrUjFmb2pSTFlqcWc&usp=sharing

After that just tune the rate (roll/pitch) P gain a bit then the stabalise (roll/pitch) P value
regards Peter King

cuongvd

Quote from: peter_a on Sunday,May 12, 2013, 15:33:31
I`m in the same stage as you starting off by learning now to get my hex to hover correctly.
My hex at first flipping and was very unstable , o.k I may have cheated by installing 29.1 .
But the main fault was esc calibration !!!!
The GPS doesn`t matter if you are flying in stabilise or acro , the GPS only come into play on loiter .
I think you have to increase your P gain from 0.03, because if you get it too low it get hard to control , you are doing constant stick movement.
if you can get it to srtay in the air doesn`t look like a setup fault .

Just setup channel 5 for flight mode and channel 6 for inflight tuning.
So far so good, P is at 0.08 now. I can fly in Acro mode as well
Still playing around with it.
In the Stabilize mode, my quad keep moving around in the parking lot. It that how it suppose to be ?
Thanks.
DJI flame wheel 450 kit with motor and ESC
Crius AIO Pro V2 with Mpng 2.8R3
BLheli firmware on DJI ESC

peter_a

I would try 29.1 addon to see if that`s better for you .
When back to 28.3 today to use the dataflash log functions which look to been removed in 29.1 addon .
It`s a lot more stable using 29.1 than 28.3 !!!!!
I think stabilise mode is no loiter , it just get more controllable if it`s set up right.

@ausi1972 is Peter King in disguise mode eh ?
I thought you would have a peterk or kingser etc for your user name.

cuongvd

Saw some issues with 2.9 and it is not on the shefl yet. I';m still new with quad, so I think i should stay away with beta.

I have couple questions:
1. When I do the in-flight tunning for rate PID, I should do it in Stabilize or Acro mode ?
2. When we do the ESC calibration, it will keep the Esc as is and make the FC match to the Esc or keep the FC as is and adjust the ESC to match the FC ?

Thanks.
DJI flame wheel 450 kit with motor and ESC
Crius AIO Pro V2 with Mpng 2.8R3
BLheli firmware on DJI ESC

peter_a

1/ Reading from the arducopter manual :-
Use stabilise because if it doesn`t fly in stabilise it will not fly at all.

2/  ESC calibration mode passes the throttle setting directly to all ESCs ,
( so you can do the ESC calibration , full throttle , add power , beeps , down to low throttle , remove power)
there is no adjust for each ESC.
If each ESC have different start and end point , when the controller says 50% throttle on all motors you can see the they will be a problem if that turn into completely different speeds for each motor , a flip or unstable .     

cuongvd

Quote from: peter_a on Tuesday,May 14, 2013, 13:06:42
1/ Reading from the arducopter manual :-
Use stabilise because if it doesn`t fly in stabilise it will not fly at all.


I can fly in both mode Acro and Stabilize

Quote
2/  ESC calibration mode passes the throttle setting directly to all ESCs ,
( so you can do the ESC calibration , full throttle , add power , beeps , down to low throttle , remove power)
there is no adjust for each ESC.
If each ESC have different start and end point , when the controller says 50% throttle on all motors you can see the they will be a problem if that turn into completely different speeds for each motor , a flip or unstable .   

I understand that but my question is: When we do the ESC calibration, it will keep the ESC as is and make the FC match to the ESC or keep the FC as is and adjust the ESC to match the FC ?

Thanks.
DJI flame wheel 450 kit with motor and ESC
Crius AIO Pro V2 with Mpng 2.8R3
BLheli firmware on DJI ESC

peter_a

Tuesday,May 14, 2013, 19:53:47 #14 Last Edit: Tuesday,May 14, 2013, 19:58:05 by peter_a
I would say , "keep the FC as is and adjust the ESC to match"
it`s the ESCs which are set not the controller , it`s radio calibration which is the controller part which is set .

cuongvd

But if we use the ESC with Simon or BLHeli firmware which supports the setting for MAX and MIN PWM pulse, then we set it up directly into the ESC then bypass the calibration ?
DJI flame wheel 450 kit with motor and ESC
Crius AIO Pro V2 with Mpng 2.8R3
BLheli firmware on DJI ESC

peter_a

That';s what ESC calibration is , bypass the controller and passing throttle end points direct to all the ESCs