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DX6i and mix, Gyro settings - what do they mean?!

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  • DX6i and mix, Gyro settings - what do they mean?!

    I had this posted in the Spektrum section, thinking now that perhaps Beginners is more appropriate:

    I'm a relative novice, but getting deeper. I'm trying settings for the DX6i that other people have posted on various fora and the Net, and I've seen posts with entries for Mix 1 and Mix 2, where the DX6i manual suggests they are only for airplane/acro. What effects, if any, will activating these have on a heli (FP or CP)?

    Also, some of those settings have SW on and some have SW gyro; again, what does this mean/do?

    Lastly and separately, some settings lists have Gyro set to INH, but some have, for instance, Gyro ACT SW-F.MODE, and settings of 0 100% and 1 100%. The DX6i manual isn't very clear about what gyro might do for different helis.

    Any words of wisdom welcome!

    Owen
    Blade mCX2 - indoor use, slightly chipped
    Blade 450 3D - outdoor use, slightly grass-stained

    Blade Nano CPX - indoor use, slightly lively
    Blade mSR X - indoor use, slightly less lively than Nano
    Spektrum DX6i, Phoenix 4
    plus some spares and a lot of optimism


  • #2
    Hi Owen. I'm not an expert by all means and someone on here will prob give you a better answer.
    basically the dx6i is programmable swash mixs etc are assigned switches. For example your idle up once programmed you can go from a linear throttle to 100% contant throttle at a flick of a switch, same as your Dr - expo settings on another switch once programmed soft settings to more harder stunt set up etc. The gyro has hh hold and rate again switchable, sw flight mode is again another switch instead of using gyro you can select any switch to do certain jobs.
    If your not flying .....then make sure you crash with style


    Comment


    • #3
      Yes, I think I can understand DR/Expo/IU, and what swash mix is (although not its details!); I see references to the Mix 1 and Mix 2 online for helis, but the DX6i manual page 17 says the mix settings are for aircraft - do they do anything for helis? If so what?! I've tried them without obvious effects, but to be fair that could well be my flying, I don't know if I should use them or not.

      Also, why is gyro set to INH for some helis, eg with AS3X - if it's got that (Nano, MSRX) does it mean I don't need the DX6i gyro? My 450 doesn't seem to have AS3X and it DOES have gyro settings!

      Yet again, I'm probably asking obvious questions, but I get easily confused!

      Owen
      Blade mCX2 - indoor use, slightly chipped
      Blade 450 3D - outdoor use, slightly grass-stained

      Blade Nano CPX - indoor use, slightly lively
      Blade mSR X - indoor use, slightly less lively than Nano
      Spektrum DX6i, Phoenix 4
      plus some spares and a lot of optimism

      Comment


      • #4
        Stevek32, I should have picked up from your signature that you've got an mSR X - what settings are you using? I've just got one, and looking online, I've seen some lists of settings for the mSR X that have the Mix options, hence the thread.

        Owen
        Blade mCX2 - indoor use, slightly chipped
        Blade 450 3D - outdoor use, slightly grass-stained

        Blade Nano CPX - indoor use, slightly lively
        Blade mSR X - indoor use, slightly less lively than Nano
        Spektrum DX6i, Phoenix 4
        plus some spares and a lot of optimism

        Comment


        • #5
          INH, inhibit basically the msrx has an automatic hh to rate mode so gyro doesn't need setting up. A normal gyro would need setting to rate and heading I.e above 50% and below 50% that's why you inhibit the msrx gyro. I will put settings up for u but everyone is different in there abilities.
          If your not flying .....then make sure you crash with style


          Comment


          • #6
            Still confused, my brain isn't as agile as it used to be - sorry if this is obvious or irrelevant.

            I can find all sorts of settings on Internet and various fora, some of which aren't (clearly if at all) explained in the DX6i manual, and the MSR X manual didn't include any settings. I've got the MSR X hovering and moving around slowly: nose-in, nose-out, and sideways-on. But when I start a turn, it drifts off sideways - right rudder generally gives forward and left drift, left rudder gives rearwards and right drift, and I'm not good enough to catch it yet! what I'd like is to trim the heli to rotate more or less on the spot - realising that it's never going to be as stable as the mCX2.

            Some sites give settings for Mix 1 and Mix 2 although the DX6i manual only talks about aircraft, not helis. Will the Mixes help with countering the drift - eg one site (they all seem to be different, some INH the Mixes!) gives Mix 1 as Rudd > Elev, D -35% U -25%, SW gyro, Trim INH, Mix 2 as Rudd > Aile, L -40% R -10%, SW gyro, trim INH and looking at the menus there are other options available and I don't understand! Am I right that these should input aileron and elevator when the rudder is actuated? And if so, what?

            Also, the MSR X is equipped with AS3X, which I understood to mean that the gyro settings on the DX6i were unnecessary - if so why do the Mix settings have "SW gyro"?

            So, three questions really: how can I trim to turn more on-the-spot? what do the Mixes do and what settings should I give them? and should I have anything set for the gyro, or set it to INH?

            Over to the experts again!

            Owen
            Blade mCX2 - indoor use, slightly chipped
            Blade 450 3D - outdoor use, slightly grass-stained

            Blade Nano CPX - indoor use, slightly lively
            Blade mSR X - indoor use, slightly less lively than Nano
            Spektrum DX6i, Phoenix 4
            plus some spares and a lot of optimism

            Comment


            • #7
              You need to go to first principles. A radio like the dx6 has 6 outputs and these are used to control a model. The rest is detail. The way gyros are controlled, the meaning of swash mixes and the use of other so called free mixers , mix 1 and mix2 vary from model to model. Mix1 and mix2 simply combine two outputs to make flying easier, and are usually used on aircraft.

              If you need to combine two inputs then you need to understand how to do it. On most helis you don't. Mainly because the mixing you need has already been done. An example of this is the 120 degree swash plate on a flybarred heli. On flybarless they usually do the mixing on the heli.

              In the same way flybarless helis like the 130-x don't use the tx to control the way the gyro works. Flybarred helis using a heading hold gyro will use a channel ,usually channel 5 to control the way the gyro works. This is often called the Gyro sense.
              Flasher 450 Sport. Assan GA250 with 520 tail servo, MKS DS450 cyclic.
              Multiplex Cockpit Tx, DX7, DX6i
              Blade 130-X, MSR, MSRX
              Phoenix Sim

              Comment


              • #8
                Thanks for that, I think: so any references in settings lists to gyro settings for the MSR X are essentially irrelevant? Should I just set the gyro on the DX6i to INH and ignore it?

                You also seem to say that Mix 1 and Mix 2 aren't necessary on a flybarless heli like the MSR X - should I again INH them and ignore?

                That would explain why some settings have gyro and Mixes inhibited, and why I can't see much effect from playing about with them. It would make life a bit simpler - the heli would still be challenging but I wouldn't be tempted to keep looking for a magic fix!

                Owen
                Blade mCX2 - indoor use, slightly chipped
                Blade 450 3D - outdoor use, slightly grass-stained

                Blade Nano CPX - indoor use, slightly lively
                Blade mSR X - indoor use, slightly less lively than Nano
                Spektrum DX6i, Phoenix 4
                plus some spares and a lot of optimism

                Comment


                • #9
                  The heli instructions usually tell you what to do. I think gyro sense does something on the msr, but not on the msr-x. Some people use mixers on the msr-x but I wouldn't. It's like using aileron to rudder mix on a fixed wing, it's better to learn how to use the rudder.
                  Flasher 450 Sport. Assan GA250 with 520 tail servo, MKS DS450 cyclic.
                  Multiplex Cockpit Tx, DX7, DX6i
                  Blade 130-X, MSR, MSRX
                  Phoenix Sim

                  Comment


                  • #10
                    The MSR X heli instructions are less than helpful, being non-existant concerning settings, the only info in the manual is to select Acro or Airplane on my transmitter! I'm finding it frustrating as I can hover it OK, but not turn it.

                    Oh well, I'm just going to have to co-ordinate my thumbs better - I'm getting too old to learn new tricks, I think.

                    It's a morale-booster to fly the mCX2 again, I can make it go where I want. If only I could copy my thumb movements from that to the MSR X, like I can copy transmitter settings on the DX6i......

                    Owen
                    Blade mCX2 - indoor use, slightly chipped
                    Blade 450 3D - outdoor use, slightly grass-stained

                    Blade Nano CPX - indoor use, slightly lively
                    Blade mSR X - indoor use, slightly less lively than Nano
                    Spektrum DX6i, Phoenix 4
                    plus some spares and a lot of optimism

                    Comment


                    • #11
                      Hi Owen,I have an MSRx and like you found turning it in flight unsatisfactory. A couple of threads on helifreak reckon that this is down to the controller, as whenever it sees rudder input the first thing it does is move the servos to their midpoint moving the swashplate which causes the drift.To counteract the drift there were two suggestions, adding mixes as you described earlier or adjusting the swashplate link lengths. I tried various mixes without any real success. But adjusting the link lengths did help (google for msrx mm mod for full details). I lengthend the aileron link 2 turns and shortened the elevator link 1 turn. now it turns much better when in the air at the cost of more leftward move if i take off slowly.

                      Comment


                      • #12
                        Thanks for the info; I'd found this mod with googling too. I'm playing around with settings, so far extending the aileron servo rod link by three full turns, but leaving the elevator as original, and dialling in +10 on elevator sub-trim seems best - it takes off with almost no sideways movement if I'm confident and get it up and out of ground effect quickly, and it hovers almost hands off (if it's steady, it'll hold for about five seconds before it needs gentle correction).

                        Still working on turns, but as cjcj1949 recommended I'm trying to co-ordinate my thumbs to get it to turn smoothly Not there yet!

                        Owen
                        Blade mCX2 - indoor use, slightly chipped
                        Blade 450 3D - outdoor use, slightly grass-stained

                        Blade Nano CPX - indoor use, slightly lively
                        Blade mSR X - indoor use, slightly less lively than Nano
                        Spektrum DX6i, Phoenix 4
                        plus some spares and a lot of optimism

                        Comment

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