What can be done to improve the hover stability?

fpvsteve · Jul 18, 2016

Pedals2Paddles said:
I think numerous people have done that, although I can't say they did in that specific order. I'm not sure how that would fix vibrations though? Did you log vibration AFTER the calibration and see that it went away?

Before and after.
Right side after a level cal.
Wind was about the same ~5m/sec
HDOP and sat count was equally good.
Both videos are at 2x speed to make drifting more visible.

pyrate · Jul 18, 2016

Something is definitely a fowl in 2.4 firmware. Seems like EKF is jacked up even though they rolled it back. I did a stick compass and level and it flew great. Went out yesterday and it was all over the place again

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fpvsteve · Jul 18, 2016

pyrate said:
Something is definitely a fowl in 2.4 firmware. Seems like EKF is jacked up even though they rolled it back. I did a stick compass and level and it flew great. Went out yesterday and it was all over the place again

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2.4 or the new beta?

Pedals2Paddles · Jul 18, 2016

@fpvsteve, How many flights do you have in after doing the calibration? Do you have a log of the vibration afterwards?

pyrate · Jul 18, 2016

2.4 production

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SteveReno · Jul 18, 2016

Jubalr said:
Here is my Solo #2. original Rev A GPS module and completely stock. No mods, spacers, etc. Running FW 2.4 and Android 2.3 Light wind. Controller in the back seat while I filmed with my cell phone.

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Perfectly acceptable in my opinion..

Looks to be stable? next time have a back drop, Tree, House or pretty girl in Bikini . i prefer the Bikini

SteveReno · Jul 18, 2016

fpvsteve said:
Before and after.
Right side after a level cal.
Wind was about the same ~5m/sec
HDOP and sat count was equally good.
Both videos are at 2x speed to make drifting more visible.

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I got to lever her out 1 more time... Solo I mean LOL

fpvsteve · Jul 19, 2016

Pedals2Paddles said:
@fpvsteve, How many flights do you have in after doing the calibration? Do you have a log of the vibration afterwards?

Here you go:
Log after level cal. vibes are completely within threshold now and Solo flies stable over the past 5 flights. (ignore the failsafe error - I switched off the controller before I powered down Solo) Key question however is were the high vibes before caused by the drifting or is the drifting caused by the high vibes?

pyrate · Jul 19, 2016

Interersting indeed

Mike Wilks · Jul 22, 2016

Just saw this thread as I was searching for motor swaps and realized I have the exact same drifting problem. It started after I updated to 2.4. Not only does it drift feet in each direction at hover, but it also has a noticeable vibration and the motors seem to be getting super hot. It was flying great up until the update. Has there been a fix from 3DR, yet? I also recalibrated everything after the update.

fpvsteve · Jul 22, 2016

Mike Wilks said:
Just saw this thread as I was searching for motor swaps and realized I have the exact same drifting problem. It started after I updated to 2.4. Not only does it drift feet in each direction at hover, but it also has a noticeable vibration and the motors seem to be getting super hot. It was flying great up until the update. Has there been a fix from 3DR, yet? I also recalibrated everything after the update.

Hot motors and vibrations have nothing to do with the firmware. Balance your props and check your motor bearings.

Mike Wilks · Jul 22, 2016

fpvsteve said:
Hot motors and vibrations have nothing to do with the firmware. Balance your props and check your motor bearings.

I have checked the motors, they spin fine. They are burning fingers to the touch hot from just three minutes of hovering flight. Also, recalibrated everything and I still have the damn drift problem. I never had this before the update.

Greg Parker · Jul 22, 2016

Much of my stability problems may have been from a ESC going bad. It got so that every couple of minutes it would dip violently and then straighten up; kept noticing one motor hotter than the others. Finally the bulb lit and I replaced that pod and no more dips.