DX6i / AR6200 / 2servos - Some questions - Need help  
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DX6i / AR6200 / 2servos - Some questions - Need help - 8/28/2008 10:16:56 PM   
NoBrainer


 

Posts: 20
Joined: 1/9/2008
From: Skedsmokorset, NORWAY
Status: offline 		Hi all
I need some help since I'm a total new at this...
I have a DX6i with the AR6200 reciver. I want to use it for some testing and I am testing some different setups.
I just have 2 servos (and no airplane hihi)

1)
First scenario is like this
I need both servos to go the same way and a 100%. lets say I want it on elevon/aileron stick. If I push elevon up or down, both servos should go 100% in ether direction. If I have elevon at full up or down, then use the aileron, I want that just 1 of the servos decreases 50%. But it should not turn all the way to "zero". If I push the aileron the other way, the other servo should go back 50% and the first servo should again gain 100%.

I manage this with my setup using WingTail mix and the Elevon. But I don't get 100% just 50% when pushing elevon forward or backwards. Then If I turn with the aileron, I get 0% on 1 and 100% on 2 servo, and vica versa....

I can't use sub-trim to fix this.

Do any of you guys know how I can fix this?

2)
Second scenario is like this
I need to set up my 2 servos i 3 different way, 1: one servo steering both ways, second servo does nothing. 2: both servos is going the same way. 3: both servos goes the opposite way of eachother. How can I manage this, and how can I switch between them?

3)
Third scenario is like this
How can I use the switches on my DX6i to turn picoswitches on and off? Lets say I use 4 channels to control, lets say a aircraft, and I want to use the 2 last channels on my receiver to control 2 different light setup with the help of picoswitches. Is it possible to assign 2 switches, one for each picoswitch?? The gear-switch is one, but can I use another one on the AUX but then how do I set it up??


This is NOT related to flying, but to other stuff I do. This is for testing and to see what I can do with my DX6i or if I have to get a new transmitter where I can fly helis and aircraft and still use the transmitter for other things...

I am going to use these settings on different things, like RC Tanks, RC Car's with 2 wheel steering and RC Cars with 4 wheel steering and boats...But I would like to just have 1 transmitter. The DX6i is very good for Aircrafts and Heli's, with its detailed setups for those two things, but if you want to use the transmitter for other things than that. I can't seem to figure it out.


Best retard NoBrainer
       Post #: 1

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 8/29/2008 12:59:17 AM   
BuschBarber


 

Posts: 824
Joined: 1/7/2002
From: Rochester, NY, USA
Status: online 		It is hard for me to picture exactly what you want to do and when, but usually, the more High End the computer radio is, the more options you have for programming.
Most computer radios come with standard programming like EPA/ATV, Servo Reversing, SubTrim, Flaperons, Elevons, Elevator to Flap mixing. Aileron to Rudder mixing, Dual Rates/Exponential, and one or more Programmable Mixes. The more you spend, the more features there are. You can buy some 3rd party hardware like a JR Matchbox, and various types of 3rd party electronic mixers and electronic switches. Many times, just buying a radio like the Futaba 10C or the JR X9303 will give you more options than you would get if you tried to buy 3rd party alternatives. It is hard to tell if your radio will do all that you want without experimentation.

I remember buying a Hangar9 UltraStick. It had Ailerons and Flaps. Each Aileron half, Flap half, and Elevator half had a separate servo and you needed to put each servo on a separate channel to do all that the aircraft was capable of. You were supposed to be able to set up Ailerons like normal, Flaps like normal, or mix Ailerons and Flaps so you had only Full Length Ailerons. You could make the Flaps go Down and the Ailerons go Up, and at the same time, have Ailerons work like normal. You could mix Elevator with Flaps, so when Elevator goes Up, Flaps go Down, and vice versa. You could even have each Elevator half move in the same direction as the Ailerons and still move Up and Down together, like Elevators.

I got a good buy on a Futaba 7AUP, but it would never work for everything I wanted to do. If I used a Programmable Mixer, to mix Elevator halves on ch2+8, I could not mix Elevator with Flaps, because only ch2 moved with Flaps.

I bought the Futaba 8AUP and it solved all my problems and allowed me to do even more. The same was true when I bought the Futaba 9CAP.

You can do amazing things with multiple Programmable Mixers, but unless you have a vivid imagination or know someone who has done what you want to do, you may never realize that your radio has that capability.

(in reply to NoBrainer)
       Post #: 2

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 8/29/2008 8:03:48 AM   
NoBrainer


 

Posts: 20
Joined: 1/9/2008
From: Skedsmokorset, NORWAY
Status: offline 		Yeah I guess your right.
But I would like to know if someone have tested some of these things. And whats bothering me a bit is that I can't control the max output of the servo.
Like in the first picture (a bit fuzzy, sorry) with the wingtailmix, you can see how much it moves.

But in the next picture, when I activate the aileron to the right

I get zero on one and max on the other. Why can't I control this.
I would like to control how much each servo should move. But I'm trying to learn something here.
Maybe I think I can do too much with it or my expectations are wrong.

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(in reply to BuschBarber)
       Post #: 3

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 8/29/2008 2:45:52 PM   
BuschBarber


 

Posts: 824
Joined: 1/7/2002
From: Rochester, NY, USA
Status: online 		I have not paid too much attention, in the past, to the monitor, so I do not know how well it compares with what I see the servos doing.

If you go into the Travel Adjust screen, you can adjust the maximum Travel, of the servo arm, up to 125%, in either direction. This will move the servo arm out to just beyond 60 degrees, in one direction or the other. You can also go into the Reverse section of the programming, and change the direction of the servo so that now when you move the Aileron stick Right, for example, the Aileron servo will move in the opposite direction.

If you hook one servo up to Aileron and one servo up to Elevator, when you move the Aileron stick, only the Aileron servo will move and it will move proportionally to the movement of the Aileron stick. You will get Full Travel, in Both directions. The same is true of the Elevator servo when you move the Elevator stick.

When you turn on the Elevon mixer, in the WingTail Mix, both the Aileron and Elevator servos are working together as Ailerons and Elevators. When you move the Aileron stick only, Right and Left, both Elevons will move in Opposite directions, to Full Travel, and when you move the Elevator stick, Up and Down, the Elevons will move in the Same direction, to Full Travel.

When you move the Aileron stick to the Right and the Elevator stick to Up, the Right Elevon is going to move Up, for Right Aileron, and Up for Up Elevator. The Left Elevon is going to move Down, for Right Aileron, and Up for Up Elevator, so will Not get Full travel on both Elevons.

You really need to hook up the servos to Dummy control surfaces so you can see the effect. Depending upon which side of the servo the servo arm is installed, the Control Surface will move either Clockwise or CounterClockwise when you move the stick. You can control the Direction the servo moves with the Reverse function.

When first set up a computer radio, you make sure all the Mixers are turned OFF and that all the Subtrims,Trim Levers, and Travel Adjustments, are set to Zero. Next, you set the Servo Reversing, so the servo is turning in the proper direction when you move the stick, lever, or knob. Now, you put the Servo Arm on the servo, as close to 90 degrees as possible ( the Output gear on any servo usually has a Spline. The Servo Arm should have a Spline that matches your servo type. Servo Arms with two or four arms are slightly offset on the Spline so one Arm will be closer to 90 deg than the other. They are usually marked with a 1.2.3. or 4.). Once the Arm is on the servo, you use SubTrim to move the Arm towards 90 deg. You want to keep the SubTrim numbers LOW because SubTrim takes away from the Total Travel of the servo. The only time I use SubTrim after that is just to make SMALL adjustments to Trim that I might not be able to make Mechanically, using the pushrods.

(in reply to NoBrainer)
       Post #: 4

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 8/29/2008 11:49:28 PM   
NoBrainer


 

Posts: 20
Joined: 1/9/2008
From: Skedsmokorset, NORWAY
Status: offline
quote:

ORIGINAL: BuschBarber
When you move the Aileron stick to the Right and the Elevator stick to Up, the Right Elevon is going to move Up, for Right Aileron, and Up for Up Elevator. The Left Elevon is going to move Down, for Right Aileron, and Up for Up Elevator, so will Not get Full travel on both Elevons.


Thanks for great reply.
But this only shows my point. By using "Travel Adjust" and "Subtrims" I don't get the effect I want. But the way DX6i is programmed is probably perfect for flying...
Since I do wanna use my DX6i for other things besides planes and heli, I need to adjust those levels, but I can't without effecting other things.
I can increase with travel adjust, but not the hole way.


In the picture you see that elevon is lets say 1/3, but I need it to be 1/1 or at least 2/3 to function ok on my model. And when I push the stick down, I just get -1/3.
I can't find any data where I can adjust just that.

Believe me I have tried subtrim and travel adjust but thats not the right way to go...
I have tried to talk to spektrumrc about it, but they haven't answered yet, but then again it's just 3 days since I mailed them.
If I just could handle all those things myself, like if I wanna use THRO and AUX 1 on my receiver to go 3/3 both ways at the same time when I move throttle stick. And if I could tell my transmitter that if I then move Rudder stick, THRO should stay 3/3, but AUX 1 should only have 1/3, I would be happy, because that means I have so called control.

Since they say DX6i is "perfect" for planes and heli, does that mean that it "can't" be used with other vehicles like boats, cars, tanks, robots and wheelchairs??

hihi

I do think I bought the wrong transmitter, since I'm "stuck" just airplanes and heli and maybe just a "simple" car, but I would like it not to be that way...


but thanks for great explanations!


Best retard NoBrainer

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(in reply to BuschBarber)
       Post #: 5

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 8/30/2008 7:30:07 AM   
BuschBarber


 

Posts: 824
Joined: 1/7/2002
From: Rochester, NY, USA
Status: online 		It may be that the programming in the D6XI is just too limiting for what you want to do. For instance, in a lower end computer radio, you might want to plug Right Elevator into the Elevator channel, Left Elevator into the Aux2 channel, and mix the two channels. You may find that the Aux2 knob cannot be disabled so you have to be careful not to touch it or it will throw Aux2 out of trim. If you bought a more expensive computer radio, there might be an option to disable the Aux2 knob, which would eliminate that problem. You might also get more options in the Programmable Mixers, etc.

You need to look at radios like the DX7, X9303, and 12X, to see if they offer you more choices.

My first computer radio was a Futaba T6XA. At the time, I had purchased a plane with Retracts, and because of the design of the Retract Valve and servo, I needed a radio that allowed me to set Endpoints, so I bought the T6XA just for that reason. After I used the T6XA for a while, I realized I could nont ever go back to a non-computer radio. Now that I have a JR9303, the T6XA seems so limiting and lacking in features.

(in reply to NoBrainer)
       Post #: 6

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 8/31/2008 4:26:48 PM   
jaka


 

Posts: 4657
Joined: 12/11/2001
From: Upplands Vasby, SWEDEN
Status: offline 		Hi!
I bought the DX6i to use on my V-tail pylon racers and discovered that using "V-tail" decreased servo travel to 50% (elevator and aileron).
On the DX-7 servo travel is still 100% when using V-tail mix.
Talked with Horizon and the only comment they had was that this was the way it was.

_____________________________

Jan Karlsson Airracing products
MVVS, Motul "Micro" all synthetic oil

(in reply to NoBrainer)
       Post #: 7

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 9/1/2008 4:15:27 PM   
NoBrainer


 

Posts: 20
Joined: 1/9/2008
From: Skedsmokorset, NORWAY
Status: offline 		cool, this is just what I discovered as well.
I'm also considering the DX7, but have not yet decided what to do.

I need a 2,4GHz transmitter.
I need at least 6 channels.
I need to manually program my wingtailmix so I can utilize 100% of each servo, if it don't have a prepared program that does the same. This will control 2 ESC's on a belt vehicle.
I need to have a switch to switch between 1 or 2 servo's (this is for 2 or 4 wheel steering on a car)
I need to have a switch to switch between 2 servo's going the same way and opposite ways. (this is for 4 wheel steering car)
I need to have the ability to program a servo to +/- 10 Degr. (main gun of a tank)
I need to have the ability to program a servo (sail vinch?) to go +/- 160 degr. (turret of a tank)

I want a transmitter that allows me to program different setups and how far a servo can go. Just so I can use it on air / water / surface.
Some of those I have talked to say that I got to get me an DX7 or higher, like Futaba 10C?

like I said before, I don't want to limit myself to just planes or helis, I want to play with it and just not be that frustrated with all the limitations with a transmitter.


(in reply to jaka)
       Post #: 8

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 9/1/2008 8:26:47 PM   
NoBrainer


 

Posts: 20
Joined: 1/9/2008
From: Skedsmokorset, NORWAY
Status: offline 		Seems to me that Futaba is a better choice than Spektrum.
Futaba got more programming possibilities.
I'm looking at 7C 2,4 GHz FASST right now at it can be used at least for most of the things I need.
The 10C is even better, but at double the price....

(in reply to NoBrainer)
       Post #: 9

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 9/7/2008 3:16:10 AM   
allr


 

Posts: 91
Joined: 1/31/2002
From: Corsicana, TX, USA
Status: offline 		Hello,
I have a Dx6i. I set the wing confirguation to dual ailerons and plugged the servos in to aileron and flaps. Also, I am using two servos for the elevator. One went into the elevator channel, the other into the gear channel and set them up according to manual. Now the problem, I can not get the same amount of travel in the servos in both directions. The two will move the same in one direction but not the other. I double check the settings according to manual and even replaced the servos from JR 517 to JR 537's. Same results.. Any suggestions?

(in reply to NoBrainer)
       Post #: 10

RE: DX6i / AR6200 / 2servos - Some questions - Need help - 9/7/2008 3:56:44 AM   
BuschBarber


 

Posts: 824
Joined: 1/7/2002
From: Rochester, NY, USA
Status: online 		When setting up Dual Elevators, you say you set them up according to the manual. There is nothing in the manual that specifically refers to Dual Elevator setup other than Vtail or Elevon and neither of these can be chosen if you are using Dual Aileron, I assume you mean you used a Programmable Mixer to mix Elevator and Gear. You need to set the throw for both Up and Down separately.

I am reading the manual Online, but I do not have a DX6i in front of me.

I have a JR8103 and a JR XP9303. Dual Ailerons are handled using the Flaperon program and Dual Elevators are handled by either using a Programmable Mixer or Mating the Elevator channel to another unused channel.

Make sure that in the Travel Volume screen, you have selected the same values for the Elevator channel and the Gear channel. The manual says to move the stick Back and Forth to set the Travel for each direction.

(in reply to allr)
       Post #: 11

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