RunRyder RC
 39  Topic Subscribe
WATCH
 13 pages [ <<    <     3      4     ( 5 )     6      7     NEXT    >> ] 27909 views POST REPLY
HomeAircraftHelicopterFlybarless Rotor Head SystemsOther › Ace G-T5 3-Axis Gyro Touch Flybarless System
11-20-2011 04:54 PM  6 years agoPost 81
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

Thanks NitroAl. I've got my ATV/Endpoints at 100 in my TX for all channels. My swash values in the GT5 are at 55 (aileron and pitch) and 62 for elevator. These values give me about ±14° pitch range and ±10° cyclic.

I'm pretty sure the problem is vibration. I've seen this same situation in a V-Bar equipped Synergy N5 before. We tried every combination of tape possible including Zeal trying to get rid of the vibs. It didn't work. So the V-Bar came off and back on went the flybar. The N5 was sold immediately as most who have experieced flybarless will not go back to a flybar.

I will try one last time to see if I can eliminate the problem. I will try Zeal tape (with strap) and some more engine tuning. If this doesn't work. I'll replace the GT5 with a CGY750. I know these FBL systems can handle nitro vibs. I wanted to try something new with the GT5 and save money if I could. Weather permitting, I'll report back shortly with my results.

PM  EMAIL  GALLERY  Attn:RR  Quote
11-22-2011 06:18 AM  6 years agoPost 82
NitroAl

rrApprentice

Gold Coast Aus

My Posts: All  Forum  Topic

I wonder if I have set my radio up incorrectly, I have my ATV's at 150% and turned down the servo travel in the G-T5 to get the desired cyclic and collective (servo travel menu) but found 6deg was too little to satisfy the control loop when I cranked up the cyclic and pitch values in the swash menu in order for me to get my desired roll and flip rates!
I think it's time for me to read the manual's again, It seems each time I re-read the manuals I pick up on a little more of how it works!

PM  EMAIL  GALLERY  Attn:RR  Quote
11-22-2011 03:04 PM  6 years agoPost 83
Thuvanduc

rrApprentice

Salt Lake City, Utah

My Posts: All  Forum  Topic

http://www.google.com/url?sa=t&rct=...eh3OGt_bNFTnzpg

There are good setup in Helifreak that you can use.

Duc

PM  EMAIL  GALLERY  Attn:RR  Quote
11-22-2011 03:22 PM  6 years agoPost 84
Thuvanduc

rrApprentice

Salt Lake City, Utah

My Posts: All  Forum  Topic

Here are my GT5 settings. Same as I was using in the video above.

Heli Specs:
BLS 451/251
Jive 6V
105 tail
710 Radix FBL
Motor: 4530

Total Gain: 109

P/I Gain Menu:

Swash:
P Gain: 95
I Gain: 70
I-D Stick: 100
D Sense: 25
Feed Forward: 85
I-lim: 18
Hover: 4
Tail:
P Gain: 98
I Gain: 70
D Sense: 25
Tail D-DB: 5
Tail Symmetric: 0
Tail Stick Dyn: 36
DMA Cyclic: -20
DMA Pitch: -80
Smooth Stop: 0
Swash Plate Menu:
Pitch Mix: 98
Ail Mix: 70
Ele Mix: 70
Stick Menu:
Expo Tail: 20
Expo Swash: 20
Rest is set at default
I have about 25% expo in the radio too, but I find that contrary to V-bar, the GT5 internal expo smoothes everything out quite nicely and doesn't necessarily double-dip on the expo.

PM  EMAIL  GALLERY  Attn:RR  Quote
11-24-2011 09:16 AM  6 years agoPost 85
bigbadflyer

rrVeteran

Middle Earth New Zealand

My Posts: All  Forum  Topic

Thuvanduc, what gain setting do you have in your TX. I think I must have a incorrect setup as my total gain is 49. It seems to fly great thou so I unsure whether or not to change the setting. If I go above 49 total gain it seems to pop links off if I move the TX sticks while its on the bench so Im to afraid to try it for real.

New Zealand Helicopter Sheep Hearding Champion :-)

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
11-24-2011 05:24 PM  6 years agoPost 86
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

Gain in TX? It is best to keep your gaines in the GT5 as high as possible. Just below he point where oscillation occurs. Otherwise your conrol will feel soft and mushy. I you are popping links, try setting servo limits (setp 14 in manual). Step 13 could be used, but since you can't see the roll and flip limits on the bench this seems like a useless and redundant parameter.

PM  EMAIL  GALLERY  Attn:RR  Quote
11-24-2011 06:14 PM  6 years agoPost 87
bigbadflyer

rrVeteran

Middle Earth New Zealand

My Posts: All  Forum  Topic

If I have read it correctly you can adjust the overall gain of the GT5 by using the gyro gain from the TX. Maybe I am reading this wrong but it does seem to adjust it.

At 49% it doesnt pop links (miles from it)
At 50% the links go to the extreme and pop off.

New Zealand Helicopter Sheep Hearding Champion :-)

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
11-24-2011 06:25 PM  6 years agoPost 88
rexxigpilot

rrProfessor

Florida

My Posts: All  Forum  Topic

On the GT5 gain display, does it show a negative value (background turns white, indicating Rate mode) when you are at 49%? The gain channel can be set to any function - gyro, aux or what ever you want. The pulse width of the output signal (1000uS to 2000uS% = 0 to 100% gain) is the only thing important. BTW, what radio are you using?

PM  EMAIL  GALLERY  Attn:RR  Quote
11-25-2011 03:46 PM  6 years agoPost 89
GetToDaChopper

rrElite Veteran

Las Vegas , NV

My Posts: All  Forum  Topic

somethink sounds very wrong if your poping links with gain adjustments

    ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
11-26-2011 03:17 AM  6 years agoPost 90
mrultralite

rrNovice

abbotsford bc canada

My Posts: All  Forum  Topic

Just been looking through the manual to see what its says about TX setup,come to mixing functions;
the GT5 manual says one thing and apparently means the other , it says set to mechanical mix [ meaning 90 degree?], then don't set to 90. ? Made me wonder if i can use my DX6i

PM  EMAIL  Attn:RR  Quote
11-26-2011 04:17 AM  6 years agoPost 91
Agilefalcon

rrKey Veteran

Fort Worth, Texas

My Posts: All  Forum  Topic

Where are these flybarless units in supply? Just noticed that on Tower and my local hobby shop, availability went from late November to late December.

Chris Berardi
Team BobbyJack's Hobbies

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
11-26-2011 04:28 AM  6 years agoPost 92
growmaster4

rrApprentice

rohnert park ca

My Posts: All  Forum  Topic

There's one in the classifieds right now

i2 put the art in your part

PM  EMAIL  GALLERY  Attn:RR  Quote
11-26-2011 04:58 AM  6 years agoPost 93
NitroAl

rrApprentice

Gold Coast Aus

My Posts: All  Forum  Topic

You set it to one servo/90deg and the mixing is done in the G-T5

PM  EMAIL  GALLERY  Attn:RR  Quote
11-26-2011 08:39 AM  6 years agoPost 94
bigbadflyer

rrVeteran

Middle Earth New Zealand

My Posts: All  Forum  Topic

On the GT5 gain display, does it show a negative value (background turns white, indicating Rate mode) when you are at 49%? The gain channel can be set to any function - gyro, aux or what ever you want. The pulse width of the output signal (1000uS to 2000uS% = 0 to 100% gain) is the only thing important. BTW, what radio are you using?
Ok, I have had more of a play and discovered a few more things.
Im using a Futaba 12Z Tx. I found that if I started to wind up the gain it went to a white background (total gain) which was showing it was it rate mode (I didnt know this)
I then reversed the gain channel in the TX and it now goes up with the normal black background.

I now think I have to completely reset up the GT5 so as I can get the overall gain up from 49%.

Can somebody please tell me why when I increase the the gain in the TX it also increases the servo throws? ie if you have the aileron stick over hard on the tx, the higher the gain the more throw until it starts to bind??

Have you guys set your servo end points in the TX or GT5? Because I was using a lower gain I never set the end points as I didnt seem to need to. Obviously this was wrong.

Lastly can the guys using Futaba TX's please tell me what their gain setting number in your TX's are.

Thanks in advance

New Zealand Helicopter Sheep Hearding Champion :-)

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
11-26-2011 09:35 PM  6 years agoPost 95
Stolla

rrKey Veteran

Port elizabeth South Africa

My Posts: All  Forum  Topic

That's the one thing I hate about this unit is that gain influences the cyclic throw changing atv doesn't make throws less just slow them down, the only way I found to lower cyclic rates is to lower gain, adjusting cyclic under setup doesn't help either as once when out of setup no change except if you lower it significantly to like 40 percent
I wouldn't worry too much about overall gain, set it to have the cyclic throw you want then set individual parameters to your liking, I've set up gains on my id up so can choose 3 gains til I find the right number
Setup is a hassle but once it works it's incredibly good so far outperforming the market leader in one of my helis something I never expected

Common sense may not be common after all

PM  EMAIL  GALLERY  Attn:RR  Quote
11-27-2011 06:01 AM  6 years agoPost 96
NitroAl

rrApprentice

Gold Coast Aus

My Posts: All  Forum  Topic

You can reduce the travel in the servo menu! Take a look at the settings sheet for the ace servo's to get an idea of what you should or should not alter.
I have the spektrum H6040 servo's on cyclic and BLS254 on rudder in my X50 and used the settings from the last column for cyclic's and the BLS251 settings from the first column for rudder as a base and then tuned it from there.
I did have some odd flight tendency's but thanks to Rexxigpilot I realized that the G-T5 was in rate mode!

PM  EMAIL  GALLERY  Attn:RR  Quote
11-27-2011 07:43 AM  6 years agoPost 97
360Wings

rrApprentice

Australia

My Posts: All  Forum  Topic

Is there any reason why I cant use the GT5 as a tail gyro whilst im waiting for my FBL head to arrive? I know the beastx works as a tail gyro so im assuming the GT5 can too?

PM  EMAIL  GALLERY  Attn:RR  Quote
11-27-2011 08:52 AM  6 years agoPost 98
growmaster4

rrApprentice

rohnert park ca

My Posts: All  Forum  Topic

If your using a separate rx,just plug in the tail to the unit,if your using a sat or sbus just turn the swash gains to 0

i2 put the art in your part

PM  EMAIL  GALLERY  Attn:RR  Quote
11-27-2011 09:42 AM  6 years agoPost 99
bigbadflyer

rrVeteran

Middle Earth New Zealand

My Posts: All  Forum  Topic

You can reduce the travel in the servo menu!
Yes but when you come out of setup do your servos stop at the pre selected endpoints or do they keep on moving until they start binding.

New Zealand Helicopter Sheep Hearding Champion :-)

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
11-27-2011 11:46 AM  6 years agoPost 100
Stolla

rrKey Veteran

Port elizabeth South Africa

My Posts: All  Forum  Topic

You can limit cyclic by changing each servos travel or limits on the unit but ideally if you get binding at100 percent overall gain move the ball links closer on the servo arms
I didn't like the maiden at lower gain to prevent binding so now gonna move balls closer, then at 100 percent overall gain set up cyclic range under setup for 6-8 degrees throw
Under setup the cyclic values are a reference point only for the control loop unlike pitch which changes real values , so once you have set up a reference point you'll wanna change it only to increase or decrease agility
I've also found that although you should not use subtrims it's ok to use them on pitch to get zero at centre stick then use atvs to get min and max same but imop don't change endpoints on anything but pitch.

Common sense may not be common after all

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 13 pages [ <<    <     3      4     ( 5 )     6      7     NEXT    >> ] 27909 views POST REPLY
HomeAircraftHelicopterFlybarless Rotor Head SystemsOther › Ace G-T5 3-Axis Gyro Touch Flybarless System
 Print TOPIC  Make Suggestion 

 39  Topic Subscribe

Tuesday, June 19 - 8:05 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online