Welcome to PhantomPilots.com

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

Bad AXi motor install

Discussion in 'General Discussion' started by MonsieurAnon, Nov 18, 2014.

  1. MonsieurAnon

    Joined:
    Nov 22, 2013
    Messages:
    353
    Likes Received:
    0
    Location:
    Melbourne, Australia
    Video of the problem; http://youtu.be/h00GlKrCYG4?t=37s

    So, my present problem is this:

    I installed 4 AXi motors, and confirmed that they worked with a hover test, but then it went into serious oscillation when it had to correct itself.

    So I decided to try using a motor adapter and 9443 props instead of the carbon fibre ones that worked with the default adapters. I went out to give it a flight today, and the front motor visible in this video doesn't start as quickly as the others ... it goes back and forth a bit before starting to spin, and then it only spins at about half the speed in idle.

    I didn't catch, or notice this before take off and I think the quad got about 10cm of air in a flipping motion before biting the grass, which seems like a logical reaction to having a funky motor. Any ideas what the most likely culprits are for this?
     
  2. RDCF550

    Joined:
    Oct 22, 2014
    Messages:
    86
    Likes Received:
    10
    Location:
    USA, VA
    Swap your CCW motors. If the problem goes to the other arm, you have a bad motor. If the problem stays on the same arm, you have a bad ESC.
     
  3. MonsieurAnon

    Joined:
    Nov 22, 2013
    Messages:
    353
    Likes Received:
    0
    Location:
    Melbourne, Australia
    Ah, that's brilliant; a binary test. Thank you!
     
Loading...
Similar Threads - Bad AXi motor Forum Date
Why drone taxis are bad for the drone community...Article/Pics News Mar 11, 2017
Did I get a bad P3S? Standard/4k Discussion Tuesday at 10:11 PM
The Good, The Bad & the Ugly: State Farm, A Crash & The Black Hole Known as DJI Service General Discussion Tuesday at 12:02 PM
A long weekend, over-water flights, bad crash and bulletproof P3S General Discussion Sunday at 6:13 PM
Standard Landing Drone on Sand, Bad Idea? Phantom 3 Help May 20, 2017