Why INAV Position Hold is not working? The toilet bowling effect 

Very clear explanation - thanks Pawel keep it coming

Best explanation I found about issue due to compass calibration! Thanks for the video and I will keep following your channel

WOW, THANKS DUDE, this was exactly my problem, turned the battery and now its all working. Amazing

you're the king of multirotor inav !!! thanks a lot

Thanks ! Keep up the good work !

Thanks, my friend!

Thanks! Very helpful

Love your videos brother they help alot I'm brand new to inav with drones

THANK YOU. I fought with a toilet bowlng 5" for a week. I was absolutely sure the mag alignment and compass were correct but, like a dummy, didn't even think about the fat battery wires running right over top of the compass. I used some tape to get it out of the way for a test and it works perfectly. Now to redesign my wire layout.

Thank you very much...

Thanks for explanation. I use a KF102 drone, so I have this problem constantly. The control of drone is impossible and few times I had a crash. Looks like I need to make a autopsy of drone to check out compass module.

Thank you for these troubleshooting tutorials. I have been using iNAV and had issues that led me to a crashes due to a ESC malfunction. Do you know if there is a way to set the initial values for the control surfaces when the control comes back after a reset ?

Very nice explanation Pawel! Bardwell couldn't do it better ;) I think my new, rtf Banggood Inv powered drone just needs some magnetometer calibration. Greets from Austria, Mario / RCSchim

@Pawel Spychalski... Excellent video... always the best in iNAV. The power lines... when you calibrate mag are say... 1Amp... When multirotor flying are say... 14Amp. 14 Amp generate more magnetic interference than 1A.

Hi thank you for the very good video. I'have an toilet bowling instead of Position Hold but the compass is working well, I did some tests with motors working at 100% thrust, and I the perturbation is very very low.... any idea? maybe I need to tuned PID? thank you very much

I set up INAV 2.5 RC1. My first inav installation. Went out to try POSHOLD. At first it was bowling for one round. But then it stabilized itself. Was running perfectly for the rest of the flight... does that mean that it calibrated itself mid flight, or is something else happening? Mag orientation is correct CW270 flip on the BN880 and it looks fine in the SpeedyBee app via Bluetooth on the field... thanks Pawel for your videos and support!

Hi Pawel, Can I place a external magnetometer on the same mast where I have put the GPS, just below the GPS? Mag is a GY273 and GPS is a BN220

thanks, very useful.. what about INav on Kakute F7 v1.5 is the I2C clock speed a potential problem? INav recommends 800kHz but i believe the Kakute runs at 400kHz... any insight?

Today my 5" 250 did NOT go up to 25m (as put in the settings, I just double checked) when hitting RTH, more than 5m away. I've been using these settings on my 450 and 330 (my learning drone) and it's allways worked just fine. In trouble - Just hit RTH, and it would climb out of trouble and return, but this time it did not. I've moved my FC from my 330 to my fresh 5" 250, reflashed with the 5" GPS presets, but when hitting RTH today it just flew right into some trees before I deactivated it. Why would it not climb?

One quad I just can't get the compass reading right. Can the vista mess it up? It's own wires run under it. I have calibrated it a few times. When I look on speedy bee it doesn't seem to turn much when you turn 180. It's matek m8q-5883

You should add the magnetometer orientation in the configurator as a possible cause

Thanku

Hello I have two Problems first toilet bowling and a other problem is my copter is accelerate like a rocket in the air when I activate pos hold it isn't good. I need help to fix this problem.

Thanks for the simple explanation! Can you describe any conditions that may relate to my issue on Inav 2.6.1? Position Hold is Locked on position with no drifting, but RTH is toilet bowling. Heading check = N / 0, W / 90, S / 180, E / 270, mag seems properly calibrated. When I flash Betaflight, GPS rescue does not toilet bowl, with mag sensor in use. Using Matek f722mini fc, and matek gps w/compass.

i'm just finishing up a build. in the past i've used either Mags on the FC, or on my housed UBLOX M8N. for this build i'm using a Beitian BN-880. it would seem from your explanation that the toilet-bowling (an action that has plagued more than one of my builds in the past) that it would be pretty important to make sure that the Mag is properly oriented on the quad, right? I notice that when i'm testing out my Mag, when i do not have it attached to the quad & therefore independent of the FC, moving the Beitian around does not affect the movement of the "model" on the Inav Configurator. this, i'm assuming, is because those movements are being driven by the accelerometer. so when i'm testing like this, is there somewhere else on the configurator i should be looking to make sure that (after calibrating the mag) the Beitian BN-880 is truly facing magnetic North? btw, i watch literally everything you put out on your vlogs - please keep up the great work!!!! Russ from Coral Springs, Florida, USA

Have you mentioned that toilet bowling is possible not only with wrong compass orientation or due to interferences, but also when VelXY pid (POSR in OSD) is too high?

I often say the drone goes.Fibonnaci...

How about BB analysis of Toilet bowling? I would gladly send you logs but unfortunately Matek F405-CTR on iNAV 1.9 stops recording after violent shaking. The same FC on BF is working fine so I suspect this is the DMA issue. Is there a possibility to turn DMA off for BB SD card in 1.9 or I have to upgrade to 2.0?

Could a gopro recording cause this problem if gps is on top of tpu print

Need 3D GPS fixed first?

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