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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsFutaba CGY › Help me, last try with a CGY750!
05-28-2012 07:26 PM  6 years agoPost 21
wbplomp

rrApprentice

Den Haag, The Netherlands

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@Dr.Ben

I have increased Head.Resp for AIL to 4. That feels quit good. I then increased Head.Resp for ELE to 3. That does not feel ok at all. Response is to slow, doesn't feel right. The wobble is still present and as far as I can feel isn't less either. Of course worth trying.

Where can I get the previous firmware? If I downgrade, do I need to reconfigure everything?

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05-29-2012 05:41 AM  6 years agoPost 22
Dr.Ben

rrMaster

Richmond, VA, USA

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Though there has been a post on RR that had the link to the v1.1, the quickest thing would be to just open a short thread asking for that link. If I had it myself, I would send it to you. I figured 4 on AIL would feel good. The same on ELE is less often preferred, but it was a safe test.

You will not have to reconfigure.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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05-29-2012 02:31 PM  6 years agoPost 23
Knud Pedersen

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Denmark - Europe

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in case you missed it:

Quote from Dr.Bens "Consolidated V1.2 tips" HEAD RESPONSE
https://rc.runryder.com/t672354p1/
What we want to do is tweak the head response and use proper voltage to achieve servo temps that aren't too warm after a flight and with current consumption per flight in the expected range (typically </= 500 maH).

What happens if you run the head response up too high? NOTHING SCARY AT ALL. If you get the value too high, all you'll begin to see are inconsistencies in the way the model flies. For example, you might see rolls start to lose axial-ness or consistency from one roll to another because the system isn't feeding the data stream to the servos as fast as it should
Quote from Dr. Ben
https://rc.runryder.com/t697574p1/?p=5752928#RR
For head response, I would suggest you set the ele to 2 and the ail to 4. Fly the model and see how it feels to you. If all is well, then you can try increasing the head response to 4 on ele as well. Ideally, the best match of head response to the model comes by running the value as high as possible but not so much that control lag becomes problematic to you. The same would apply to the control delays which is why you felt your model flew better in flight mode 3 versus 4. Sometimes 4 is too fast for some guys because its control delays are lower.
This how I understand the Head response, according to Ben´s notes:

1. Expect to have a different Head respones on on Ail as on Ele.

2. Expect the ELE to have a "lower" head respone value then Ail (ex. 2)

3. And expect Ail to have a higher Head respone (ex. 4) then Ele.

4. Check the current consumption per flight (500 mah on i Nitro, i geuss E helis might have a lower consumption, due to less engine vibration ? )

5. Try to get the highste head response as possible, with out notice any lag.
Head Response 1 is "lower" then 4, but Head response 1 sends data faster to the servos, and if the servo can change the datastream into "movement" the servo gets hot, and it will draw more amp per. flight. sound a bit backwards to me.....

PS Elevator bounce can/might be removed by increasing the ELE Stop Delay
Quote from Dr.Bens "Consolidated V1.2 tips" HEAD RESPONSE
https://rc.runryder.com/t672354p1/
4. In some cases, increasing the ELE Stop Delay improves ELE bounce. The higher the I gain, the more tendency for bounce. Run I gain no higher than needed for good straight line tracking and stability. Too much will induce or worsen ELE bounce with agrgressive cyclic input.
6. Im not sure if Constant AIl and/or ELE Delaymode are used, is it then the same a changing the Delay in/out? See the yellow marked text......If so i guess delay mode constant could contribute to ele bouncing....?

@Ben Please cime in if it wrong

ChopperKnud
Team Miniature Aircraft
ThePitchbrothers

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05-29-2012 07:06 PM  6 years agoPost 24
Dr.Ben

rrMaster

Richmond, VA, USA

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Knud,

Constant versus delay mode does not contribute to or reduce any tendency for bounce.

Ben

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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05-29-2012 08:30 PM  6 years agoPost 25
Knud Pedersen

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Denmark - Europe

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Knud,
Constant versus delay mode does not contribute to or reduce any tendency for bounce.
Okay, but then I dont understand the text in the update 1.2 "manual":
"Both control delay in and out can be used in the same manner" (marked with yellow in my previous thread)

I thought it meant "Instead of the using the dly.mode function or Constant you could use the delay in and out"......

And if that was the true, then it could contribute to ele bounce, cause you write the increasing the ELE stop delay might help on ele bounce...
I guess i misunderstood something...
Could you try to explin the Dly.function/constant then?

Thx alot!!!

ChopperKnud
Team Miniature Aircraft
ThePitchbrothers

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05-30-2012 01:00 AM  6 years agoPost 26
Dr.Ben

rrMaster

Richmond, VA, USA

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Knud,

Due to some of the limitations of Jenglish, the best way that I can explain the CONSTANT delay mode is that the model overall responds in a more linear fashion to control inputs.

Increasing control OUT delay on the ELE improves cases where bounce is present.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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05-30-2012 05:29 AM  6 years agoPost 27
Knud Pedersen

rrKey Veteran

Denmark - Europe

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Okay, i will try to play with both parameters.:

I increase the Ele Stop delay, to see if the small bounce issue go away (ELE Igain is at 35%), the heli is a Fury55/8717@life

I try the constant mode on AIl and ELE, and i expect it to get a more aggressive feeling.
Because the update manuel says the "AIL/ELE Dly.Mode works the same way as RUD Dly.Mode" and in the original manual it says for RUD Dly.Mode "Constant for a linear and aggresive feeling"

Jenglish

Thx Ben.

ChopperKnud
Team Miniature Aircraft
ThePitchbrothers

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06-07-2012 11:48 PM  6 years agoPost 28
wbplomp

rrApprentice

Den Haag, The Netherlands

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Hi,

I want to let you know I have tried everything. The bounce keeps on going. And all that tweaking didn't feel right if we talk about flight characteristics. I realized I have not flown good lately, only tweeking. That had to stop. So I finally decided to put a V-Bar silverline on it for now. It works perfect out of the box, no bounce no shaking skids. I know it doesn't add anything, but The V-Bar flies different. The CGY750 gave me a very confortable flybar like feel (apart from some anoying issues). The V-Bar I have to get used to.

I am not ditching my CGY750s, I'll just wait for a new firmware or whatever may come. Untill then I am trying to pick up the flying again.

Thank you guys sofar. You have been very helpfull and I appreciate it!

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06-08-2012 07:21 AM  6 years agoPost 29
blade3d

rrElite Veteran

New Jersey USA

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Thanks for this tread, I thought about buying one now no way.

Blade3d

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06-26-2012 07:38 PM  6 years agoPost 30
wbplomp

rrApprentice

Den Haag, The Netherlands

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Then you misunderstood this post. The CGY750 is a great unit!

Although I temporary fly with a V-Bar with one heli I can tell you both have their pros en cons. On my heli the V-Bar doesn't seem to hold my tail as good as the CGY750. The V-Bar doesn't like headspeed changes. The V-Bar is good, but I felt more connected with a CGY750. Can't tell you exactly why, just is that way, of course it all comes down to personal preference.

The CGY750 is absolutly worth to try because a lot of pilots are flying awesome with it.

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06-27-2012 07:42 PM  6 years agoPost 31
jgalen0025

rrNovice

royersford, pa- US

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that was exactly what i was thinking^^^
all of these interactions need to fixed in the background like the vbar
none should have to go through this and this is exactly what people get for buying a fbl unit with a certain name behind it. Software is what makes a fbl if you dont have that well.... youve read all the complicated posts lol

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07-01-2012 03:30 AM  6 years agoPost 32
rocket_33

rrElite Veteran

Mount Pleasant, Michigan USA

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I have to add too, I tried and tried to get my 750 to work on my 450 and finally changed it out to BeastX. Out of the box (just quick hover) it is ahead of where I was with all the work on the 750. I am sure I will not have as nice a tail but at least I can get in the air and fly which is what I need to improve my skills.

Hopefully they (Futaba) come out with some corrections as I am sure they will figure it out.

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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsFutaba CGY › Help me, last try with a CGY750!
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