Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

Adjusting Yaw - Basic gain for slow flight navigation

Discussion in 'Phantom 2 Discussion' started by Archie Andrews, Jun 26, 2014.

  1. Archie Andrews

    Joined:
    May 21, 2014
    Messages:
    13
    Likes Received:
    0
    Hi
    I am trying to do some low level low speed filming whilst traversing along a winding stream of water.

    But I find the yaw (P2 rotation) a little aggressive when turning the rudder left or right. It is currently set at 100%. Tend to get a bit of thumb tremble and the drone then will make some aggressive rotations. I just need slight easy yaw.

    Before I go ahead and adjust the basic gain of yaw can someone please advise how reactive the changes I make might be. (yes I suppose I should just trial in increments)

    I'm just trying to gather what others have found best setting in order to get a slow smooth rotation of the drone.

    many thanks
    A
     
  2. IrishSights

    Joined:
    Jan 14, 2014
    Messages:
    1,410
    Likes Received:
    37
    Location:
    Bangor, Northern Ireland, UK
    Making the left stick longer helps a bit. Unscrew the top of the stick as much as you need then unscrew the bottom bit until it locks against the top part. It gives you 1/4" longer stick which helps a little in controlling the yaw.

    Sent from Samsung S4 via Tapatalk
     
  3. Archie Andrews

    Joined:
    May 21, 2014
    Messages:
    13
    Likes Received:
    0
    Cheers IrishSights, might look at that. I was hoping you could reduce with the gains tho?
     
  4. Archie Andrews

    Joined:
    May 21, 2014
    Messages:
    13
    Likes Received:
    0
    Can someone confirm if lowering the yaw basic gain will in fact reduce the aggressive rotation?

    Thanks again
     
  5. Archie Andrews

    Joined:
    May 21, 2014
    Messages:
    13
    Likes Received:
    0
    OK I found another post that indicates the basic gain is for the GPS efforts to correct its position not the input of the stick. And that there is no Yaw attitude setting.

    It would be nice if they could firmware that option in. Aggressive rotations don't really help for smooth panning footage :-(

    I heard the Futaba T8J can help with this but that's another £250+ that I'm not spending.
     
  6. ladykate

    Joined:
    Jan 7, 2014
    Messages:
    994
    Likes Received:
    7
    Location:
    Bellevue, NE
    You can use another transmitter (like a Futaba 8fg) and dial in either a yaw curve or exponential and do what you want. Also, the Futaba profile here (by Ianwood) has several settings on it that transfer to a mild yaw control. They are made specifically for better camera control.
     
  7. IrishSights

    Joined:
    Jan 14, 2014
    Messages:
    1,410
    Likes Received:
    37
    Location:
    Bangor, Northern Ireland, UK
    You could always make this mod:
    http://www.rcgroups.com/forums/showpost ... count=2990
    I have done the gimbel tilt mod bit. The yaw potentiometer is on the cards sometime soon. I like the self centering nature of the stock controller although I believe you can get self centering kits for aftermarket transmitters.

    Sent from Samsung S4 via Tapatalk
     
  8. Archie Andrews

    Joined:
    May 21, 2014
    Messages:
    13
    Likes Received:
    0
    Thanks Guys
    The RC mod looks good, but probably wont do anytime soon :-/ I got some techy skills but cant be assed to deal with the headache hahaha

    Futaba looks the more exclusive option but .. hey its £250+ :)

    I'll soldier on accepting it is what it is.

    I just think if the DJI guys have come this far, it can't be that hard for them to be able to allow custom power parameters so that folks could fine tune their drones for particular purposes.

    Its a shame because I'd guess it's quite doable and relatively simple by their tech team. Its all PLC stuff really.

    I wonder if a basic block stop on the yaw sticks left and right (a kind of rectangular channel that still allows throttle up/down) would help ?? Just something simply rigged to prevent a full left/right of the Yaw control. That way it would still rotate just slowly. It does appear/feel as it's the initial inertia of the rotation that causes the fast pan? If I really concentrate I can gently nudge the yaw but its not that easy when focusing on other aspects at the same time.

    I basically wanna fly dead ahead with the occasional roll left or right to keep center (imaging following a running track lane) and yaw on the curves/bends nice and lightly.
     
  9. sar104

    Joined:
    Mar 22, 2014
    Messages:
    1,265
    Likes Received:
    245
    Location:
    Los Alamos, NM.
    It will not. Basic gains only affect autopilot response, not stick response.
     
  10. ElGuano

    Joined:
    Sep 4, 2013
    Messages:
    2,219
    Likes Received:
    4
    Sar is right. Only the attitude gains affect stick input, and only attitude pitch/roll can be adjusted.

    Practicing smooth, slow yaw is a very effective solution, but dual-rate functions on 3rd party controllers work well too.
     
  11. Dronepup

    Joined:
    Jun 26, 2014
    Messages:
    34
    Likes Received:
    0
    Location:
    Squamish, BC
    Please help me.
     
  12. sar104

    Joined:
    Mar 22, 2014
    Messages:
    1,265
    Likes Received:
    245
    Location:
    Los Alamos, NM.
    That's a pretty open-ended request for a first post. Any chance you could be a little more specific.
     
  13. ladykate

    Joined:
    Jan 7, 2014
    Messages:
    994
    Likes Received:
    7
    Location:
    Bellevue, NE

    Did you align the compass before you launched?
     
  14. IrishSights

    Joined:
    Jan 14, 2014
    Messages:
    1,410
    Likes Received:
    37
    Location:
    Bangor, Northern Ireland, UK
  15. Archie Andrews

    Joined:
    May 21, 2014
    Messages:
    13
    Likes Received:
    0
  16. Archie Andrews

    Joined:
    May 21, 2014
    Messages:
    13
    Likes Received:
    0
    Irishsights
    I adjusted the stick extension some as you suggested. I'm also thinking bout screwing a 1" x M3 screw in the remaining thread with an upsidedown "L" shaped piece of plastic such that I can hook my thumb at the stick side. I'll let you know how that goes. Its a quick n dirty solution/idea.

    I tend to get thumb wobble when resting directly on top of the stick. Pinching the stick is kinda OK. So having my thumb resting against the stick with the "L" hook I think might allow me to be more gentle on L/R adjustment.

    I made a 6mm ply disc with a narrow slot to limit L/R movement it sits over the stick. It's effective but having to secure it down with tape is ugly and cumbersome.

    The Futaba makes sense for the professional solution. It still costs a lot though and I'm not 'per se' an RC enthusiast ;-)

    Thanks again.
     
  17. Khudson7

    Khudson7 Guest

    You may also want to look at the FrSky Taranis...less expensive, loaded with many features that the more expensive(Futaba) controller has. I recently got mine set up. Now I have a switch that I can flip to lower rudder(yaw) set to 60%. It smoothes the Yaw right out. (Switch can be set to any %, or I could have one of the 3 way switches, set so that each of the 3 ways, sets the rudder to different % of Yaw.) Also have the camera slider set to 3 way switch so I can have camera pitch move smoothly up or down at 3 different speeds.

    And the best feature IMO is it talks to you, telling you which switch you clicked, warnings, etc without having to look at controller or memorize or listen to a set of beeps. :D

    There is a lot of help on this forum in setting up the taranis if you decide to go that route.
     
  18. Timsytanker

    Joined:
    Jun 21, 2014
    Messages:
    166
    Likes Received:
    1
    Location:
    Bury St Edmunds England
    Can you use the Lightbridge with the Taranis? Thinking about future proofing....
     
  19. Khudson7

    Khudson7 Guest

    Wow, good question, wish I could afford the Lightbridge in the first place so I could expertly answer that question.

    But doing a quick web search it appears that you can...

    https://www.flickr.com/photos/timnilson/14169147886/
     
  20. tom3holer

    Joined:
    Mar 20, 2014
    Messages:
    324
    Likes Received:
    2
    Location:
    Cape Cod, Ma.
    Khudson7,

    I have a Taranis also and just wondering if you found a tx module that will work with the Phantom2 receiver or did you have to change the receiver?

    Thanks,

    Yom