RunRyder RC
 4  Topic Subscribe
WATCH
 2 pages [ <<    <     1     ( 2 )    >    >> ] 2621 views POST REPLY
HelicopterMain Discussion › Jeti DS16 and align 3GX. Can't get it functioning correctly.
06-04-2014 12:18 PM  3 years agoPost 21
heligaz

rrNovice

Toronto , Canada

My Posts: All  Forum  Topic

Which part don't you agree ?
The part that align states in the setup manual that you shouldn't adjust ?

PM  EMAIL  Attn:RR  Quote
06-04-2014 01:04 PM  3 years agoPost 22
rcflyerheli

rrKey Veteran

Granbury, TX USA

My Posts: All  Forum  Topic

The part in your post where you indicated not to touch or adjust the swash mix. You WILL have to adjust swash mix to get the proper amount and direction of your collective and cyclic throws. I agree with the part of the post where you indicated not to adjust the trims.

What heli are you installing this on? Maybe I missed it, but in general the 3GX setup is the same on all. I just want to look at the same manual you are using for your setup.

Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

PM  EMAIL  GALLERY  Attn:RR  Quote
06-04-2014 01:17 PM  3 years agoPost 23
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Gaz --

Your transmitter has a Swash Mix menu, that menu has values for Aileron, Pitch, and Elevator.

The value of each number determines how much travel each function has. The sign of the number determines the direction of travel for a given stick movement.

I believe your transmitter defaults to a setting of +50 for each value. Most other transmitters seem to default to +60.

You also have servo reversing available.

In order to get your 3GX properly set up, while operating in DIR mode, you use the SWASH MIX values and signs, as well as your servo reversing function to get the three servos moving correctly with respect to themselves, and with respect to the control stick.

Also, during the DIR mode setup, you use the SWASH MIX value (and sign, if necessary) to set the overall Collective Pitch travel and direction you are looking for (this is typically in the +/- 10 to +/- 14 degree range). The instructions explicitly tell you to use the Pitch value in the SWASH MIX menu to achieve the desired pitch travel.

From the setup instructions:
Adjust the maximum collective pitch using the transmitter's swashplate mixing function (pitch swash AFR). Do not adjust individual servos endpoints through the servo ATV/AFR function.
Further, you use the Aileron SWASH MIX number to set your system to have 8 degrees of cyclic pitch. The Elevator value is set to a value similar to that found necessary for the Aileron number.

Again, from the setup instructions:
Swashplate cyclic pitch setting: with the main blades parallel to helicopter body, throttle stick positioned where main pitch is 0 degrees, move aileron stick all the way to the right, adjust the AIL mixing ratio within radio's SWASH menu so the main blade pitch is the factory recommended value ±8 degrees. The ELE mixing ratio in SWASH menu can be set to the same value as AIL.
Yes -- SWASH MIX IS a necessary adjustment to get your 3GX operating correctly.

As with a standard CCPM set up, you use the individual channel reversing functions to make the servos move properly with respect to each other (not necessarily with respect to the stick) -- the aileron function has the pitch and aileron servos moving in opposite direction, the elevator function has the pitch and aileron servo moving the same direction, while the elevator servo moves the opposite direction.

When you get that basic motion correct, you use the SIGN of the SWASH MIX numbers to get the overall swash moving correctly with respect to the stick.

All of the adjustment with regard to the SWASH MIX values happens in DIR mode, allowing to you get the mechanical setup and travel correct. This is no different than setting up a normal CCPM flybar heli.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR  Quote
06-05-2014 05:34 AM  3 years agoPost 24
heligaz

rrNovice

Toronto , Canada

My Posts: All  Forum  Topic

So tonight I think I found what's going on. My controller is not responding to any program changes.

Maybe I'm doing something wrong AGAIN

so I seem to have all cyclic servos moving correctly. In DIR mode.
When I want to change any values in DIR mode, the controller does not recognize my stick movements.
If I hold my rudder to one side and hold the set button, I seem to get into the menu, but I cannot change any value on gain with any stick.

I believe when you update the controller , it wipes out the old program.
So I did another update and it does the same thing.
Now I remember why I don't Heli's as often as I would like. Lol

Thanks for your patience and input.

I need another set of eyes on this , I'm sure it is the smallest thing that I keep missing. This would be the second time I've set this up in three years ,,

PM  EMAIL  Attn:RR  Quote
06-05-2014 06:08 AM  3 years agoPost 25
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Dir mode. It bypasses the gyro. What you see is what your transmitter and receiver are doing.

There is nothing to remember for the 3GX. When all is correct in dir mode, leave collective at zero degree position. Push the button. Move elevator full forward then back to center. This teaches the 3GX your swash control setup. Push button again. Look at how the gyro corrects for nose up/down movements. If it corrects in the wrong direction move elevator stick and chang color of status led. Check for correct movement. Push button. Move aileron full right and back to center. Push button. See how gyro corrects when you tilt heli left and right. If backwards use aileron stick to change status led color. When correct push button, 3GX will initialize.

What are you trying to do with rudder stick and button? That gets you into some flight mode setting stuff.

What values are you trying to change in DIR mode? And how are you trying to change them?

What gain values are you trying to change?

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR  Quote
06-05-2014 01:24 PM  3 years agoPost 26
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Unanswered questions:

1. In DIR mode, you are able to get the three servos moving correctly and the swashplate moves as it should in all cases?

Yes, or no?

2. In DIR mode do you set your overall pitch range to be somewhere in the +/- 10 to +/- 14 degree range, cyclic pitch to 8 degrees, and zero degrees with the stick centered?

3. Assuming 1 is "yes", how do you exit DIR mode? What are the next steps that you do?

4. Assuming you exit DIR mode by pushing the button and following the next set of setup steps, do you have the collective stick set at mid-position, the zero degree pitch position? Do you leave it there for all subsequent setup steps?

5. Do you complete the steps where you teach the unit the swashplate configuration and proper direction to drive the swashplate? If so, what happens at each step along the way?

6. At the end of the initial setup sequence, does the swashplate move correctly with stick inputs?

7. Have you gone through the tail rotor gyro setup sequence successfully?

8. Have you completed the final step of calibrating the pitch/throttle settings?

9. Have you, at any time, hooked up the unit to a PC and read the setup instructions, have you used the PC interface to view the parameters as it is setup, and have you looked at the page which displays how the unit is set up to react to the control inputs?

10. What DOESN'T the unit do, that you think it should be doing?

11. Have you taken advantage of Manny1776's offer for help? If so, what was that outcome like?

12. What power source are you using? How are you getting power to your 3GX, receiver, and servos?

Your last post seems to indicate that you are trying to use the Flight Condition setting mode, that is entered by moving the rudder stick to its endpoint and pushing the button. This is a stick programming mode, you need to look at the five LEDs as you attempt to program using the stick. There are a few useful parameters here -- roll and flip rates, and swashplate travel limits to prevent binding. But no gains are set here.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR  Quote
06-07-2014 05:01 AM  3 years agoPost 27
heligaz

rrNovice

Toronto , Canada

My Posts: All  Forum  Topic

Well, I got the heli setup.
I still don't know what the cause of why certain things didn't gel

Thanks to all that had some input.

Gaz

PM  EMAIL  Attn:RR  Quote
WATCH
 2 pages [ <<    <     1     ( 2 )    >    >> ] 2621 views POST REPLY
HelicopterMain Discussion › Jeti DS16 and align 3GX. Can't get it functioning correctly.
 Print TOPIC  Make Suggestion 

 4  Topic Subscribe

Friday, May 25 - 7:47 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online