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Thursday,August 22, 2019, 23:35:32

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Gaza07:
22 Aug 2019 22:47:32
Sorted mate  ~~
Andy7:
22 Aug 2019 10:27:36
Sure. But basically, all the subjects are getting cut off.
Gaza07:
21 Aug 2019 18:14:54
Can you pm me a screen shot of what you mean
Andy7:
21 Aug 2019 12:15:41
Gaza - can you make the subject line section in the forum topic list wider? It's cutting off the subject field really short.
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  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
hoverfly:
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
atomiclama:
29 Jul 2019 20:14:10
DB that just means you have shed loads of props in the first place ;-)
DarkButterfly:
29 Jul 2019 18:53:33
Just had a thought, even with all the crashing I've done, I haven't bought any replacement props in over a year ~~
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Printing 3d Forum

MegapirateNG and Mission Planner Quad Shaking Violently

Started by N7KI, Friday,May 17, 2013, 23:39:34

Previous topic - Next topic

N7KI

I have a DJI frame with the Crius AIOP fc and the latest version of MegaPirateNG and Mission Planner  that I have just started trying to tune.  The quad shakes violently when holding it per Dave C';s tuning sheet.  This shaking is worse than anything encountered with MultiWii.  Any help or ideas will be appreciated.  Trying to tune using the acro mode.  One site says tune in Stable mode and another says do it in Acro mode.  I don';t know which is better.

Gaza07

Tune Acro first try lowering the RateP this used to cause some bad wobbles / shakes




N7KI

I have Rate P at 0.0010 and still have shakes but not as violent.  What next?

Gaza07

I haven';t seen one need to go that low before maybe try lowering the stabilise P

barneyg

What is your rateD set to ? ... I found that having this higher meant more violent oscillilations

N7KI

thanks for the help.  i have managed to quit the shaking to stop with the pids.  I have to still work on quadcopter reactions to stick movement.  It still has a small amount of shake.  Is there any way to get the motors to turn on before half throttle? 
Attached is a pic of my tune so far.  Will work on Stabilize tune after getting acro figured out.

firey1

did you do an esc calibration and radio calibration  before you started changing PIDs
if your motors are not in calibration then it will be all over the place
you should have motor start just after slight movement up of throttle stick
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

N7KI

I did the four up esc calibration and the radio calibration before I started all this.  Do I have to do the calibrations every time i change the firmware?  Should I do the esc calibration again doing it individually on the esc';s?
Esc';s have been flashed with the SimonK firmware.  I there any way to check if the radio needs calibration.
Thanks.

firey1

in mission planner there is a tab for radio calibration which must be done
and you can also do a all esc calibration as well after radio calibration

turn on radio put throttle to full
connect battery to quad (props removed of course) they leds will slowly flash
unconnect battery
reconnect battery leds will flash fast
wait for tones and after the beep pull throttle down
to check the throttle will now start motors
disconnect battery and all done

it should fly with the stock pids albeit not perfect
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

N7KI

Just did radio cal and esc cal.  Motors still come on at half throttle.  Anybody have any ideas of what is causing this?  Also the motors do not come on at the same time.  I didn';t have this problem in Multiwii.
Thanks.

N7KI

Finally reread instructions to calibrate esc';s and must have missed the part that you have to do quickly.  Once i did it in the correct sequence and quickly the motors come on with just a little throttle.  Part of the problem on my end is that the esc/motor combo does not beep so you don';t know when to change states for the proper procedure.
Thanks to all.

firey1

sorry my fault
yes esc tones are different after they have been flashed
my HK F30s used to have 4 beeps for throttle
now after flashing 1 quick quiet beep

Now that the ESCs are calibrated I would set PIDs back to stock and see how it goes now as keeping the PIDs at the present low you will be chasing it all over
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

N7KI

The esc/motor combo doesn';t produce any kind of audible beep.  I did go back and re-tune using the channel 6 method on Rate P and D.  Numbers are definitely more in the normal range. 
Again thanks to all who contributed to help me solve my problem.