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Feb 26, 2016, 04:15 PM
Regexistentialist
ridgerunr's Avatar
Thread OP
Alert

XK-innovations RTF X6 Transmitter - Each DR coin has two sides!


Summary:
The X6 transmitter, which comes with the RTF versions of XK-innovations' new micro heli lineup (K110, K120, K123, etc), has two sides to every dual rate parameter. In other words, each aileron dual rate switch setting (one high, one low) actually has two values: one for left deflection and one for right deflection - and these must be set independently by moving the stick each direction in turn while programming each value. Same is true for the elevator and rudder. Failure to set both sides will result in (possibly radical) asymmetrical response and this may explain strange undesirable flight behavior some may be experiencing. You may wish to go check yours right now!

Discussion:
So I received my new XK K110 RTF package today and started taking a close look at the X6 transmitter programming. I first documented the as-delivered settings then proceeded to apply my own preferred settings.

Dual rates:
So I'm a slow learner and have been flying my CP micros (mCPX-V2 and nanoCPX) with dramatically reduced rates on the cyclic - i.e. 50% on both elevator and aileron channels. These very low rates tame these touchy wild beasts down quite nicely.

So I programmed in lower rates on the new XK X6 controller and then checked it out on the bench but was very disappointed to discover that only one side of the stick travel had the reduced rates! What the...?

At first I was very disappointed thinking that this cheap little TX was a POS, but then I had a thought - maybe the dual rate setting for each channel actually has two values?

Turns out this is actually true and my negative feelings towards this controller did a 180 and now I am more impressed with this little guy! So after setting up 30% DR on cyclic and a 60% flat throttle curve, I maidened this new heli without incident. She flys SWEET!

(And the 3G/6G switch does work in-flight - Yay!)

Very impressed with XK right now!

Edit 20160226_1800: Looking closer at the manual, they do describe how each channel has 4 separate settable values:

Last edited by ridgerunr; Feb 26, 2016 at 08:40 PM. Reason: Added reference to manual
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Feb 27, 2016, 01:42 AM
Registered User
Thickfog's Avatar
Thank you for this!
Feb 27, 2016, 11:08 AM
Registered Fiend
microrcfiend's Avatar
Yeah, thanks for pointing this out. I haven't needed to adjust rates yet on the X350 or K120 but it looks like I will need to on the K110 and for sure this saved me some hassle when it arrives.

I'd expect two sides for end points but not for dual rates.
Cheers ridgerunr
Feb 27, 2016, 07:11 PM
San Mateo, CA
HPCR's Avatar
Quote:
Originally Posted by microrcfiend
Yeah, thanks for pointing this out. I haven't needed to adjust rates yet on the X350 or K120 but it looks like I will need to on the K110 and for sure this saved me some hassle when it arrives.

I'd expect two sides for end points but not for dual rates.
Cheers ridgerunr
I plan to load my 2 x K 110 when I get them, in my T8J together with the 2 x K120. I hope that will make it easy for me. However, if there is a "copy' function in the X6, I might add them to the X6 as well.
Feb 27, 2016, 09:48 PM
Regexistentialist
ridgerunr's Avatar
Thread OP

Stick Calibration!


So the throttle stick on my X6 TX was not quite right - (there was a large dead band at the bottom of the travel and electrical center was not at the physical center). Reading the manual revealed a stick calibration procedure. After a bit of fiddling, I figured out how it works:
  1. Turn off TX.
  2. While holding the throttle trim lever in the DOWN position, turn on the TX. The display will show everything.
  3. Release the throttle trim lever.
  4. Move each stick, one at a time, to its full travel extents.
  5. Click the throttle trim lever DOWN to exit the stick calibration mode.
Once complete, its probably best to re-bind and perform both the 3G and 6G calibration procedures.

I made a video showing the process:

XK Innovations X6 Stick Calibration (0 min 36 sec)


Enjoy and Cheers!
Last edited by ridgerunr; Feb 28, 2016 at 09:00 AM.
Feb 29, 2016, 01:53 PM
San Mateo, CA
HPCR's Avatar

From X6 to Futaba TX TJ8


So, I worked on the Futaba TX some more to get the best possible implementation of the XK 120. As luck would have it, another Futaba player happen to be on hand and we substantially changed the switching needed to get all the functionality. I have not had time to write it up but I am ending up with a total of TWO switches that are needed for ALL the functions. First switch is the Throttle Hold Switch ( right top) . The other switch is the IDLE UP switch ( 3 position on left top of TX)
Basically, the Normal /Idle Up settings are on the 3 position switch and the condition switch which is set with Gyro to 75% and 25%. The Mode switch grabs the 75% Gyro setting in NORMAL and the 25% setting is set to the IDLE UP modes.
Of course, the D/R and EXPO settings ( your choice and preference) are used and the Throttle settings are set for the Normal mode starts with ZERO ( at there is no soft start in the X120) and is almost linear, and IDLE UP 1 is at 80% across and IDLE UP 2 at 95% across.
General observation. With these settings, the Normal mode is very usable for beginners , it does not allow inverted flights and it self-rights and the IDLE UP's have all the 3D capability with basically two head speeds if you chose them.
May 05, 2016, 10:49 PM
Registered User
lakodathecat's Avatar
I did a factory reset on the xk x6. Got everything back the way it "should" be. Just one question when picking the swash type for k110 & k100 should it be the circle at 90 or the circle at 120? The transmitter instructions seem to say select circle with 120 for 3 servos but most transmitters would say pick 90 for servo type. I figure just different interpretation then other transmitters.

So can someone with a factory bound k110 or k100 to the xk x6 verify the swash type should be the circle with 120???
Thanks
Last edited by lakodathecat; May 05, 2016 at 11:22 PM.
May 05, 2016, 11:25 PM
Registered User
Sorry if it had been asked before, but how do i factory reset the X6?
May 05, 2016, 11:46 PM
Registered User
lakodathecat's Avatar
see attached
May 06, 2016, 01:01 AM
Registered User
Quote:
Originally Posted by lakodathecat
see attached
Many many thanks Orz
Jul 31, 2016, 11:06 AM
Registered User
Hi. My k 110 was drifting to side tried to trim it but did not work. I found your video, Did stick calibration just like you showed. But now it's more worse. 3D 6g switch has changed. 6g switch was towards me now it's away from me and its way more unstable. And trims are also not in the centre. I posted a photo too. What do I do? How do I reset my transmitter? Thanks
Jul 31, 2016, 12:20 PM
easycrash
You need to re-center those subtrims back to its original position, center.
And re-do the calibration
Sep 24, 2016, 10:56 PM
Registered User
Quote:
Originally Posted by lakodathecat
I did a factory reset on the xk x6. Got everything back the way it "should" be. Just one question when picking the swash type for k110 & k100 should it be the circle at 90 or the circle at 120? The transmitter instructions seem to say select circle with 120 for 3 servos but most transmitters would say pick 90 for servo type. I figure just different interpretation then other transmitters.

So can someone with a factory bound k110 or k100 to the xk x6 verify the swash type should be the circle with 120???
Thanks
I will check mine tomorrow, but all the current helicopters I have, blade and walkera, that are flybarless set to 90 degrees.
Jan 28, 2017, 08:46 AM
Registered User
hello,
are you guys having trouble either when trying to factory reset the x6 radio or getting the heli to enter "hovering mode"?
neither will work here for me.
thanks.
Jan 28, 2017, 02:35 PM
Regexistentialist
ridgerunr's Avatar
Thread OP
Quote:
Originally Posted by hilarious
hello,
are you guys having trouble either when trying to factory reset the x6 radio or getting the heli to enter "hovering mode"?
neither will work here for me.
thanks.
To factory reset:
  1. Turn off Tx.
  2. While pressing both MODE and BACK buttons down, turn on the Tx.

To do the 6D and 3G calibrations, you need to make sure the DR switch in the full=100% throw position.


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