Take off's always unstable - but flight is smooth?

3691052285?profile=originalHi all,

Just looking for a bit of confirmation - every take off is fraught with problems, with wild pitching one way or the other (it's mostly to the left, it should be noted). I often need to put in a bit of stick to get it in the air.

However, once it's there...no problem, Stable and smooth as anything.  As can be seen from the pic; a start up, a slow spool to almost-hover, until I punch lightly it up into the air, and then it all smooths out.

Is this a motor problem brewing? Or does the gradient affect start up motor speeds (it's only a slight gradient)?

Logs attached, just in case.

In a possibly related problem, I'm seeing a slight side-to-side yawing action in all flight modes. Will upload video of it shortly.

2013-08-21 21-07 1.log

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • hello.......its due to ground effect its not a big issue 

    regards,

    UNMANNED ENGINEERIA 

  • Hello Euan,

        I am not an expert about this but from my experiences the I value of the PID settings may be the configuration you should play with. My hexa was taking off badly and flying smoothly as yours. After changing the I value, now my hexa taking off very well. I hope it will help you

This reply was deleted.

Activity

DIY Robocars via Twitter
Apr 27
DIY Robocars via Twitter
Apr 27
DIY Robocars via Twitter
RT @f1tenth: Sliding (autonomously) into the weekend like ... 🤖😎 #f1tenth #robots #AutonomousVehicles @OpenRoboticsOrg @NVIDIAEmbedded @Aut…
Apr 25
DIY Robocars via Twitter
RT @chr1sa: One of the problems with autonomous car racing is that watching software drive is not a very exciting spectator sport. To help…
Apr 25
DIY Robocars via Twitter
RT @SmallpixelCar: Replaced AGX Xavier with @NVIDIAEmbedded Jetson Xavier NX. Now both cars look fast and clean https://t.co/jlcoY2EjZf
Apr 25
DIY Robocars via Twitter
RT @chr1sa: Yesterday we had a record number of competitors (36) in our monthly @DIYRobocars virtual autonomous car race. We kept it going…
Apr 25
DIY Robocars via Twitter
Apr 16
DIY Drones via Twitter
RT @chr1sa: After more than a year of only virtual races, @DIYRobocars returns to the newly renovated @circuitlaunch on May 22 for the resu…
Apr 11
DIY Robocars via Twitter
RT @DAVGtech: And now available with LiDAR 🔥 https://twitter.com/Heavy02011/status/1381137016381964293
Apr 11
DIY Robocars via Twitter
RT @Heavy02011: #VirtualRaceLeague: @DIYRobocars Race #9 - #ParkingLotNerds #thunderhillracetrack, CA Join us for the next race April 24th,…
Apr 11
DIY Robocars via Twitter
RT @DWalmroth: Weather's finally cooperating, looking forward to racing 1:10 scale autonomous cars outdoors again! @diyrobocars, @NVIDIAEm…
Apr 7
DIY Robocars via Twitter
RT @AIDRI_: I finally succeeded in optimizing the trajectory and speed of a car on a #racetrack. Next step: implement a 2d controller and…
Apr 7
DIY Robocars via Twitter
@jetdillo @circuitlaunch Actually the second *in person* event in a year. We do virtual races every month
Apr 2
DIY Robocars via Twitter
Update: we're moving it back one day to Sunday (the 4th) at 11:00am instead
Apr 2
DIY Robocars via Twitter
@GrantEMoe @circuitlaunch Update: we're doing it on Sunday (4th) at 11:00am instead
Apr 2
DIY Robocars via Twitter
RT @chr1sa: Maybe we should have a mini @DIYRobocars race in our lower school's playground https://t.co/xLFeua1R6X
Mar 29
More…