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  • 3GX poor roll rate

    Ok so I've tried several different setups but just don't seem to be able to obtain a fast enough roll rate to suit my flying style.
    I've got the 3gx fittedd on my 600efl and it fly's beautifuly but it just does'nt roll fast enough. I've tried upping the swash mix to silly high levels, I've tried resetting the 3gx with 12degs of aileron & elevator pitch but srill no joy. The collective is responsive and performs perfectly with +/_ 13degs of pitch. The elevator is not fast but its ok and does just about what I want it to do.
    I'm using a DSX9 Tx and the onboard Rx with two speccy sat's for rx.

    Any ideas anybody please? It's driving me mad
    Sean,

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  • #2
    The servo speed is the same with or without 3G so if your maxing out on swash mix then the only other option is to see what parameters there are in the pc software that may help to speed up the servo's
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    • #3
      Hey.

      While setting the helicopter up in DIR mode what percentages were you at on the swashplate mixes? Then at what percent do you have them set to now, out of DIR mode?

      While connected up to the 3GX PC interface have you gone to the movement page and given full cyclic stick in elevator & aileron to see what degree's per second are shown in the bar graphs? This will give us a better indication of where you are currently at with your settings.
      .
      Ian Contessa
      Robbe SchluterUK / Midland Helicopters / Align



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      • #4
        Hi Ian, the most recent attempt at setting up has 64% aileron & elevator and I have left these settings alone when test flying, this produces 12 degrees of movement in DIR mode. With the previous settings it had 10 degrees of movement with about 47% of swash mix, I did try increasing this while these settings were in use to a massive 80% and it made barely any noticable difference.
        When resetting for this weekend with 12 degrees I did take a look at the cyclic output in the software and it suggests that I currently have 297 degrees out of a possible 300. My head hurts, everything looks perfect but it takes almost 2.5 seconds to complete a 360 dgree roll with full aileron stick. I should have said in the original post that when in the hover the heli feels very lively when stabing in an input and you kinda expect it to roll like mad but it doesn't
        Sean,

        Logo 700 Xxtreme
        SAB Gobbler 700
        SAB Gobby 500
        T-Rex 700, Now FuBarred (Lol)
        T-Rex 700E, 12s Fun
        T-Rex 250 FBL, Less parts to break,
        DJi 450 FPV Flamewheel

        1 Very understanding Wife

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        • #5
          Originally posted by Downdraft View Post
          Hi Ian, the most recent attempt at setting up has 64% aileron & elevator and I have left these settings alone when test flying, this produces 12 degrees of movement in DIR mode. With the previous settings it had 10 degrees of movement with about 47% of swash mix, I did try increasing this while these settings were in use to a massive 80% and it made barely any noticable difference.
          When resetting for this weekend with 12 degrees I did take a look at the cyclic output in the software and it suggests that I currently have 297 degrees out of a possible 300. My head hurts, everything looks perfect but it takes almost 2.5 seconds to complete a 360 dgree roll with full aileron stick. I should have said in the original post that when in the hover the heli feels very lively when stabing in an input and you kinda expect it to roll like mad but it doesn't
          Hey Buddy.

          I always found 10 degree's of cyclic to be more than enough, the only thing I can say that's sounds different is that in the movement screen my cyclic would go to 300 degree's per second by half stick travel. You can go above 300, but the software only shows up to this value. Exactly how far above 300 I do not know and even if it is 300 degrees per second, but it can get to the maximum 300 quickly in a short stick deflection.
          To be seeing 297 degree's at full stick deflection indicates to me that you can wind up your swashplate cyclic mix values out of DIR mode or use the software to increase the control rate sliders.

          What settings are you currently flying from the PC software?
          .
          Ian Contessa
          Robbe SchluterUK / Midland Helicopters / Align



          Coolice Power Supplies
          Coolice Custom Built Charge Case's

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