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1st IMU calibration

Discussion in 'Pro/Adv Discussion' started by Boom, Apr 26, 2016.

  1. Boom

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    Had to do my first IMU calibration today. It was fine til today. On current firmware. Today it would start circling like it was in first stages of doing a funnel trick, and it would drift pretty bad.
    The calibration, along with a compass calibration, fixed it, but what a hassle to get set up.
    I've read about floor tiles and such, but how does everyone set up their level surface? I had to use a 1' x 1' concrete paver in the dirt, with a 4' level. What a PITA that is. Gotta be a better way.

    Sent from my SM-G900V using Tapatalk
     
  2. Jtrjr

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    Boom,

    I do mine on my wooden dining room table. I have a piece of picture glass that spans all four motors. I set the bird on the table (props off) and put the picture glass on top of the motor studs. I can then use a spirit, bubble or straight level on the glass and shim up the legs of the bird with business cards until its level. Works great.

    Jerry
     
    #2 Jtrjr, Apr 26, 2016
    Last edited: Apr 27, 2016
    Excavator99, garykeithmead1 and Boom like this.
  3. Boom

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    Great idea. Might try that next time

    Sent from my SM-G900V using Tapatalk
     
  4. alokbhargava

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    I use dining table too. Keep a flat board on it and level the board with paper inserts until its leveled. Its pretty easy.
     
  5. Zeprider

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    Same here. Wooden dining room table shimmed to level. Well worth the accuracy.

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  6. sdharris

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    I tend not to go to extremes and have calibrated on something like a kitchen counter which is no doubt a degree off but it works just fine.

    When I have checked I used the iPhone level which is part of the compass app to take a quick reading.