Pan Axis jerky when slowly panning [CS-3Axis + 3x Radians]

Discussion in '3 Axis Gimbal' started by Daniel Lassmal, Sep 21, 2013.

  1. Daniel Lassmal

    Daniel Lassmal New Member

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    Hi,
    I have a CS8 + 3 Axis Cinestar gimbal + 3x Radians attached.

    When trying to do a slow pan, it seems to be rather jerky, which settings should i play around with, to get a smoother panning axis?

    Kind regards Daniel
     
  2. Gary Haynes

    Gary Haynes Administrator
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  3. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Daniel: Thanks for the name change.
    First thing is to check that the servo belt is suitably tight. If you press with your finger between the small and large pulley there should be a deflection of about 2-3 mm.

    The other things to experiment with are:

    0. Reducing the gain on the pan Radian. The jerkiness might be incipient oscillation.

    1. Using EXPO on the pan channel. This is a setting in the transmitter that allows reduces the rate of commanded movement when the stick is in the central position, allowing you to have more sensitive control when you are just getting the pan axis moving. Note: this is not the same is increasing the "dead band" on the Radian-- that kills all movement on initial stick deflection.

    2. Reduce the RATE on the pan channel. You can do this either in the Radian software, or using the transmitter controls or both.

    Make only small changes -- and be sure to suspend the copter by the battery plate for testing so that you can get some idea of what will happen when it's airborne -- you may still find that you need to do some test flights to verify the settings and do additional adjustments.

    Hope this helps.
    ANdy.
     
  4. Daniel Lassmal

    Daniel Lassmal New Member

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    Thanks again andy, will give those 3 Solutions a try :)
     

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