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Thunder Power RC . Mikado Modellhubschrauber . Futaba-RC

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Flybarless Rotor Head Systems > Cyclic Ring in Vstaibi Software
 
 
Terrabit
Key Veteran
Location: Seattle, WA - USA

My Posts This: Topic  Forum		I increased collective and cyclic to the point where full throw is limited by cyclic ring. I changed the value from 70 to 50 and it appears that I can get full range without any binding.

I think maybe I would be better off to move the balls out from 12.5mm to 14.5 or 15mm. But, am I okay to change the cyclic ring by that kind of margin?

Dank!

Esprit Model
11-04-2009 04:14 AM
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Stolla
Senior Heliman
Location: Port elizabeth South Africa

My Posts This: Topic  Forum		Yes, the cyclic ring only prevents binding as with a physical ring.
If you change arms you must do a complete re-adjustment of all your parameters as sensitivity of sensors as well as throws are affected, so if it flies well rather stay where you are. Not sure on what model this is but check the MIK geometry tool if not a mikado to get your setup right.

Common sense may not be common after all
11-04-2009 07:45 AM
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Terrabit
Key Veteran
Location: Seattle, WA - USA

My Posts This: Topic  Forum		It's on a T450pro.

I just found the excell file.

I'll check it out tomorrow.

Thanks!

Esprit Model
11-04-2009 07:54 AM
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Stolla
Senior Heliman
Location: Port elizabeth South Africa

My Posts This: Topic  Forum		Cool, let me know your findings as we've also converted a friends pro with the outrage head, what head you're using?
His 450 does not have the locked in feelimg of my Furion with m-v yet so we're still playing around with the setup.
Unfortunately i ran into a deadend with my tail blowing out on the furion so will see if my last resort changing to inolab t/servo will do the trick.

Common sense may not be common after all
11-04-2009 09:31 AM
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MrMel
rrProfessor
Location: Lidingo, Sweden (GMT+1)

My Posts This: Topic  Forum
Quote 
Unfortunately i ran into a deadend with my tail blowing out on the furion so will see if my last resort changing to inolab t/servo will do the trick.

See my response over at Vstabi.de to that particular issue, at least it's worth trying.

My site: http://heli.dacsa.net
11-04-2009 10:08 AM
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Stolla
Senior Heliman
Location: Port elizabeth South Africa

My Posts This: Topic  Forum		First thing i did was to change servos around with the flybarred one which incidently works perfect on a 401,but no change unfortunately, so i'm not too optimistic but worth a try for sure.
I've also noticed much higher P and i values on pilot conversions for the 450 so that'll be my last resort before i give up on it

Common sense may not be common after all
11-04-2009 04:13 PM
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MrMel
rrProfessor
Location: Lidingo, Sweden (GMT+1)

My Posts This: Topic  Forum		Shouldnt really result in a blowout even with very low settings, and it shouldnt start in the middle of the flight for sure.

Unless you run ungovernorned of course with high radio throttle %, and HS drops quite alot, could account for the change midflight you see.

My site: http://heli.dacsa.net
11-04-2009 04:17 PM
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Stolla
Senior Heliman
Location: Port elizabeth South Africa

My Posts This: Topic  Forum		Yeah i'm puzzled to say the least, i'm running ungoverned but it would happen even if i fly slow and level backwards with no input on collective to disturb the HS. First time it happened it locked out during piro circles so much so that i had no tail for a while and then when it came back was totally "loose". It would stay loose till i did another trim flight which fixed it which kind of makes me think it's something within the m/v ?
It usually start about a min or less into the flight while there is no noticeable loss of power. The furion has the smoothest, least resistance tail i've seen so i'm wondering if moving the arm a little further from centre (8mm now) could also help. I did notice lowering the bec voltage on the ice would make it worse as well as running 401 settings.
Worst i've seen from vstab is wavy tail but it never blows so i'm not happy espescially since normal forward flight is awesome to say the least. Worst of all is that its exact twin brother with fbar and 401 behaves perfect!

Common sense may not be common after all
11-05-2009 05:33 AM
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MrMel
rrProfessor
Location: Lidingo, Sweden (GMT+1)

My Posts This: Topic  Forum		I highly doubt its the gyro, reason is that when a gyro fail, it either a) stop working, b) start to drift or gives full output in one direction.

It dont start to get "loose" and works like with lower gain...

Sure it could be a first, but I have never ever heard of any gyro failing like that.

If you have space, you could try the 401 on the same heli (bypass the mini)

My site: http://heli.dacsa.net
11-05-2009 05:43 AM
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OICU812
rrProfessor
Location: Grande Prairie, Alberta, Canada

My Posts This: Topic  Forum		on my pro 8-9mm was best, when i was in around 4-5.2mm the tail felt abit loose, it is solid now. This is with a DS8910 MKS tr servo, works a charm. I use the BLS251 settings as it is a 760us pulse servo.

For my pro tail I have the following Stolla:

Not sure if it helps but to reference.

In setup mode I have about 4-5 degrees of bite towards boom.

1 sens deadband
4 rc deadband
81 acceleration
81 proportional
50 I gain

rest default, and the tail is for certain very solid on these settings for the pro, even b4 AT flight it was good really, I can't see the furion ratio on tail being that much diff??

...Once upon a time there were Nitros, flybars and frequency pins...
11-05-2009 05:49 AM
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Boca Bearings . XHELI.COM . Autography FlightPower

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Flybarless Rotor Head Systems > Cyclic Ring in Vstaibi Software
 
 
Stolla
Senior Heliman
Location: Port elizabeth South Africa

My Posts This: Topic  Forum		Thanks for the input, i'm gonna play around with servo's and settings, if all else fails i will swop vstabi with the one on l400 to be sure it's not the unit

Common sense may not be common after all
11-05-2009 07:44 AM
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1 page219 viewsPOST REPLY
Thunder Power RC . Mikado Modellhubschrauber . Futaba-RC

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Flybarless Rotor Head Systems > Cyclic Ring in Vstaibi Software
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