Welcome to PhantomPilots.com

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

Yaw motor swings to Left or right

Discussion in 'Pro/Adv Discussion' started by Ted4797, Sep 18, 2016.

  1. Ted4797

    Joined:
    Nov 23, 2015
    Messages:
    1,306
    Likes Received:
    224
    Location:
    Florida and New York
    After a crash and repair, sometimes the yaw will swing to the left or right. I have written about this before. One method of fixing it is to move the set screw off the flat spot on the shaft. From my experience it is usually just to the left if it swings left. The other method is to move the magnet that is adhered to the shaft. The big question was, How do you get the magnet off without breaking it? I have been working on how for a week or so. I tried glue remover etc and that failed.
    Here is what does work. First put a mark on the magnet with a black magic marker. You need to know where you started from when you put it back. Put needle nose pliers under the magnet very gently. Heat the shaft above,not on, the magnet. Don't heat too much as it won't take much. Gently move the pliers and the magnet will come free. Make sure you do not overheat the shaft. You will destroy the motor. The Pliers block the heat from getting to the motor. Use a cotton swab and put some acetone around the magnet after it it warmed up if it does not seem to want to come off.

    Now that it is free, move the mark so that it is on the edge of the flat spot and in the same direction as it swings. Swings to the left move it to the left. You will have to try different spots and it will take some time as you will have to keep taking it apart to adjust. Good luck
    IMG_3865.JPG
     
    #1 Ted4797, Sep 18, 2016
    Last edited: Sep 18, 2016
    yo5bdm likes this.
  2. Ted4797

    Joined:
    Nov 23, 2015
    Messages:
    1,306
    Likes Received:
    224
    Location:
    Florida and New York
    Sorry I didn't do a video. I work alone and it would be hard to do. At least for me..
     
  3. trbojet

    Joined:
    Oct 24, 2016
    Messages:
    2
    Likes Received:
    0
    Location:
    Albany, NY
    So, the magnet is where you have the pliers? There doesn't seem to be a lot of info out there on the yaw motor? My yaw motor shaft is bent and got a replacement motor. I put the new motor in and when the drone starts up the camera is pointing about 30 degrees to the left. I did the gimble recal and it still pointed to the left. Very frustrating.
     
  4. Ted4797

    Joined:
    Nov 23, 2015
    Messages:
    1,306
    Likes Received:
    224
    Location:
    Florida and New York
    The pliers are under the magnet. Slight upward pressure to free the magnet. Too much pressure and you will break it.

    Sent from my SM-G935V using PhantomPilots mobile app
     
  5. Ted4797

    Joined:
    Nov 23, 2015
    Messages:
    1,306
    Likes Received:
    224
    Location:
    Florida and New York
    Are you doing ok? It is not easy to remove the magnet and re-position it. Make sure you mark it so u have a starting point. Usually it is a move to the left or right of about 90 degrees or less. If you want to see if it will work just lock the shaft on the edge of the flat area on the round part. don't over tighten and mark the shaft as you will have to file off the rough spot you made. You could always send it to me to do. I don't charge that much.
     
  6. Keanek1

    Joined:
    Mar 17, 2017
    Messages:
    4
    Likes Received:
    1
    Location:
    Savannah, GA
    Have you figured out a fix for your use motor issue. I'm having the exact same problem with mine. I replaced a bent yaw motor with a new motor and now my gimbal points full right when I power it up. I've tried 3 different motors and the problem comes back every time.

    When I put the bent motor back in, the gimbal points straight ahead.
     
  7. Ted4797

    Joined:
    Nov 23, 2015
    Messages:
    1,306
    Likes Received:
    224
    Location:
    Florida and New York
    Try what I put above about just locking the yaw arm at the edge of the flat spot. Usually the right side. See what happens then move it again until u find it is pointing straight ahead. The problem is in the main gimbal board and that can't be adjusted by you or me. If this works contact me for further instructions.
     
  8. Keanek1

    Joined:
    Mar 17, 2017
    Messages:
    4
    Likes Received:
    1
    Location:
    Savannah, GA
    Thanks! I'll try this out later today. I attempted this at some point over the past week as I was trouble shooting the issue, but didn't try every position around the motor shaft.

    When I loosen the set screw and power everything up the shaft spins, stops, spins, stops, etc. I'll dig into it again this afternoon.
     
    FlyingCircles likes this.
  9. Keanek1

    Joined:
    Mar 17, 2017
    Messages:
    4
    Likes Received:
    1
    Location:
    Savannah, GA
    Ok, I clocked the motor like you said and I got the camera to point straight ahead. I performed the auto calibration and the camera returns to the straight and level position. I'm noticing a vibration in the gimbal now when the camera is pointing straight ahead. When I pan the camera downward the vibrations stop. What should I do next?
     
  10. Ted4797

    Joined:
    Nov 23, 2015
    Messages:
    1,306
    Likes Received:
    224
    Location:
    Florida and New York
    it is either the pitch sensor or the pitch motor is damaged. that would be my guess.
    make sure you remember where you had the yaw arm locked onto the yaw motor shaft as you will have to take it apart to fix the pitch problem. Can you put up a video of the vibration so we can see what it is doing?
     
  11. Keanek1

    Joined:
    Mar 17, 2017
    Messages:
    4
    Likes Received:
    1
    Location:
    Savannah, GA
    I just emailed you two videos for you to review. One video shows the drone start up and turn fully to the right, but without any vibrations. The other video shows the drone startup with the setscrew clocked 90 degrees out, which centers the camera but causes vibrations. Thanks for your help!
     
  12. Ted4797

    Joined:
    Nov 23, 2015
    Messages:
    1,306
    Likes Received:
    224
    Location:
    Florida and New York
Loading...
Similar Threads - Yaw motor swings Forum Date
P4p gimble yaw motor overloaded Phantom 4 Pro Help Aug 6, 2017
Yaw motor won't center Phantom 4 Help Jul 11, 2017
yaw arm motor, where to source? General Discussion Jul 10, 2017
Yaw motor replacement problems Phantom 4 Help Jul 7, 2017
Problem with Gimbal Yaw Motor Phantom 4 Pro Help Jun 29, 2017