Hello everyone !
Im a complete newbie both on drones and to this forum, or at least to more advanced drones. ( Have been flying DJI Phantom for a couple of months)
After a couple of months flying DJI Phantom I decided that a wanted a bigger drone for myself, so after some investigation a decided to go for a 3DR X8+ . Now I have done about 5 flights with this product and tried a every function a little , there is one thing which I don't like at all and it's the following :
When in loiter mode if I go slowly in any direction it's holds latitude perfect but if I go over say 40% och the stick travel it descents more and more the longer I go ? Haven't dared to go further then like 30-50 meters. Then if I go full stick for more then 5 meters in any direction it does a big dip of maybe 2-3 meters in altitude when it "brakes" and slowly picks up the altitude after it has stabilized again. I don't see this very amusing , have anyone had the same issues or knows how this can be adjusted using Mission Planer ?
Thank you .
Replies
Ok, so after some more test flights and sending logs and vids to 3dr they have come to the conclusion that there is something goofy with either the ESC:s or the motors so I now sending my X8 back to the states. Feels good there is actions taken :)
good news, hope they turn it around quickly for you
Managed to squeeze in a flight today after work before it got to dark, all log files from this new flight is in the link. did fly mostly in loiter mode to show my issue !
Looks pretty similar to before and I can't see an obvious cause other than the vibes I mentioned. Your RCouts are the most aggressive and skittish I have seen I think, so its not happy.
Thank you Stuart for taking time for a newbie as myself ! Changed props after today's flight to another brand , what parameter tells me the vibrations ? And what could I do about the RCout being so aggressive ?
Have a read up on the wiki for vibrations, but the main one to look at is accel z, found under the IMU/IMU2 section...Pixhark has 2.
The outputs are aggressive as the brain is trying to over compensate, I think these vibes/rattles are confusing it. Is your battery securely tied?
Ok, yes the battery is stuck with both velcro to the undercarriage and with 3 velcrostraps . And also checked that nothing is hitting the flightcontroler but its sits nicely on its foam cushion .
OK, I guess try balancing your props and see where that gets you. Slso look for bent motor shafts, excessive play in the motors, tight motor mounts....just a very good going over really.
might be posting here on the official forum too
http://ardupilot.com/forum/viewforum.php?f=17
Thank you Stuart, ok everything is mounted as 3dr shipped it and the flight controller sits on a foam cushion and is not hitting anything . The vibrations you mention, is checking my props weight and balance the no 1 to fix this ? I have a discussion parallel with 3dr but haven't got much help get .
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