Hello guys! Just finished building my first quad, and it is flying!!! 

Now it is time to start tweaking everything to get a even more stable flight.

Two things, my quad can't hold its altitude. I have to constantly change my throttle to keep it more or less at the same height.

I'm flying in a totally windless environment, and the copter won't stay still vertically. How should I tackle this? What settings should a fiddle with to try and fix that? 

Another thing, when I take off, the quad veers to the right, it's not much, but I always have to correct it with the control. How should I try and fix that.

My system consists of a F330 from DJI, with 9x47 blades and 980kv motors, it is flying in the X config and I have a APM v1.4, with no magnetometer. My ESCs are turnigy Plush 18A, flashed with BLHeli firmware.

Other than the takeoff and altitude, the quad is very stable. I'm flying is STABLE mode.

Any help would be very appreciated. Thank you very much!

This community is awesome, couldn't have done without it.

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

Join diydrones

Email me when people reply –

Replies

  • I don't think it's all that unusual to be a bit difficult to maintain a constant altitude in stabilize mode. Especially when your only a few feet off the ground. Most people including me use alt hold a LOT.  And speaking of alt hold... I was very surprised to learn this but it's VERY true that if you don't balance your props that can have a huge impact on alt hold. 

    As far as it veering to the right I have had that issue [ feels like it's riding on a bubble and always falling off to one side ] and simply re calibrated the accelerometers again and it fixed the issue. Make absolutely certain it's level when you do so. 

  • Sensitive throttle: Throttle RATE P might need to be lowered.

    Drifting to right. Your CoG is off, your need to recalibrate your gyros or you need to check for any misaligned motor arms/mounts.

  • Just change the mode and put it in to altitude hold mode.....

    Regards,
    UNMANNEDENGINEERIA

  • Hi, I see there are 88 views already and no help for you yet. I'm new to the APM world too and overwhelmed with the amount of configuration required to master this neat item. While I may not have your answers, here's my guidance:

    -Isolate the APM from vibration

    -Cover the barometer with a breathable foam

    -Double check your configuration, consider re-doing the initialize setup

    -Complete the auto-trim indoors (garage) or in NO wind condions

    -Read, read, read and read again the documentation, try to understand it

    -Download your log files after each flight and review them, learn how to read and understand what they are telling you

    -Find someone in your area who knows the APM, befriend them and learn.

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…