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Logo 600 › Strange problem with my LOGO 600 VStab 4.0????
10-19-2009 11:46 PM  8 years agoPost 1
luckyhs

rrApprentice

Brasil

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Hello Guys,

I'm new on the VStab 4.0, i saw the videos on the Mikado forum on how to set up this heli, i just built this heli and everything is brand new, i'm using 3 JR 8717 HV, 1 JR 8900 on tail, 10S 45C 5000mahs Thunder Power batterie, Castle Creation BEC PRO and KONTRONIK POWER JAZZ ESC.
I just made as the videos show, have help from Mr. Mel on how to setup the POWER JAZZ, everything look fine, but the main problem right now is the VStab, when i start the heli, it gets rpm normally, but when it starts to become to hover the heli reacts really strange, it becomes to have aileron command by itself, and it seems to that it wants to start having aileron comand by itself and i got afraid to have more rpm and get it for fly, i don't know what is happening, i just check the sensor and it's ok, i check the swash command and it's ok too, don't what it could be, can anyone help me on it, i know it's hard to explain the feelings of the heli, but it's making me crazy on how to setup it right.
Luciano

luckyhs

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10-20-2009 02:50 AM  8 years agoPost 2
OICU812

rrMaster

Edson, Alberta, Canada

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First did you load the preset?

Secondly understand the preset is BLS451s, therefore some reversing etc will be needed. Due to your choice of 8717 cyclics.

do you know 100% for sure that the aileron and elevator surfaces are reacting in proper directions??? Re look over your stick movements, with not touching tx and tx at middle sticks lift heli, when tilting nose down does the front of swash come up? Looking from front of heli "nose" if you tilt heli to left "your right" does the left side of swash lift, again "your right"?? If not then you have a sensor you need to reverse. You need 100% to have the reactions proper or it will fight you and can cause disaster. You may need to re look what you have reversed and normal in your tx etc, something sounds wrong between that or a sensor direction.

...Once upon a time there were Nitros, flybars and frequency pins...

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10-20-2009 09:14 AM  8 years agoPost 3
remie

rrNovice

Netherlands

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maybe a static issue, I had the same problem last time when I didn't do the static mod!

kind regards remie

Logo 600, Savox 1258tg, Jr8900g, Jive 80HV, Scorpion4035, V-bar5.0, Edge blades

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10-20-2009 12:37 PM  8 years agoPost 4
luckyhs

rrApprentice

Brasil

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Strange problem??
Hi Guys,

I checked and re-checked everything, the directions are ok, the sensor are ok, the servo for the tail is set right, i don't know what it could be?
A static problem could cause this, how can i solve this? if the problem is the static.

Luciano

luckyhs

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10-20-2009 01:13 PM  8 years agoPost 5
luckyhs

rrApprentice

Brasil

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Stick response???
What STICK RESPONSE you guys put on the first page on MAIN ROTOR?

luckyhs

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10-20-2009 01:20 PM  8 years agoPost 6
luckyhs

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Brasil

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Other question???
Do i have a problem because i have preset the LOGO 600 that comes with the software, it shows the futaba servo on cyclic BLS251, but i'm using JR8717HV, i don't know it'll be the problem, but i'm trying to see anything i can, don't know more what it could be.

Luciano

luckyhs

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10-20-2009 08:32 PM  8 years agoPost 7
marcho_bg

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Sofia, BULGARIA

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Hi Luciano
A static problem could cause this, how can i solve this? if the problem is the static.
I have same Logo setup like your. I know that Logo 600 has a little problem with statick, I saw this on other models than mine.
I didn't had static problem but prevent it using "GRAPHIT conductive coating" only for TAIL DRIVR PULLEY - MIK2466. You can spray this part profusely.
For stick response use "Normal" or "Aggressive".
Check what type of servos did you select on second page button "SETUP", position 4 (bottom) -> Expert parameters -> Linkage types, use "Digital Servos" and check box "Geometry correction".

If it doesn't help - try to do setup again from 0.

BR,

M.Mateev
LOGO 500 3D V-Bar

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10-21-2009 07:42 AM  8 years agoPost 8
Stolla

rrKey Veteran

Port elizabeth South Africa

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I doubt it's static,but i use silicone oil on the inside of the belt every 20 flights or so and never had a problem,
first check that the swash compensates to the opposite direction as the tilt.
If you use spektrum re-bind your rx

Common sense may not be common after all

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10-22-2009 02:03 AM  8 years agoPost 9
Jafa

rrElite Veteran

Sydney, Australia

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Yes - make sure the swash reacts against the heli leaning and pitching

Also - when you spool up a VBar and get light on the skids
they are a bit strange - you need to get it into the air
so the gyros can do their job


Protos | Logo 400 & 500 | Sceadu Evo | Freya Evo | Trex600N | Avant FX

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10-22-2009 12:52 PM  8 years agoPost 10
luckyhs

rrApprentice

Brasil

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Afraid of it...
Hi Jafa,

I think this is my problem, i hadn't liftoff the heli from the ground, i think i have to take off and see what happens, i have already check and re-checked everything, I have to say thanks to Mr. Mel for the support he gaves me, i'm just afraid because i have a LOGO 400 and it flies very nice, no strange reactions before lifting off the heli from the ground, i don't know if the LOGO 600 reacts different from the LOGO 400, i'm using the same 4.0 software for both, they have almost the same setup different in some things only.
Jafa, if your heli reacts a little different before lift off the ground, you're saying that it's normal.

Luciano

luckyhs

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10-22-2009 01:01 PM  8 years agoPost 11
Ronald Thomas

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Gainesville, Fl, USA

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(1) Make sure the stick movements are the same as they are on the 4.0 screen

(2) Make sure the transmitter is calibrated to the VBAR program

(3) Make sure the swash is leveled properly in the program

(4) Make sure the swash gyro correction are correcting the FIRST MOVEMENT of the swash. I mean it is hard to actually see the first movement sometimes and the easiest way to fix it is to put your hands on the swash, and move the heli by hand to feel if the swash is correcting the right way or not. It is easy to confuse the two as you can miss the first movement because it is so quick.

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-23-2009 02:29 AM  8 years agoPost 12
Jafa

rrElite Veteran

Sydney, Australia

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Definately check the steps Laughingstill has outlined

But yes, my L500 can behave uncertainly when it's light on the skids
Normally it wants to tip forward
sometimes it wants to tip to the right

But if I use the collective to bring it into a hover in a smooth and positive manner without delay everything comes good as soon as the skids are off the ground


Protos | Logo 400 & 500 | Sceadu Evo | Freya Evo | Trex600N | Avant FX

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10-23-2009 01:29 PM  8 years agoPost 13
luckyhs

rrApprentice

Brasil

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another doubt....???
Laughinstill,

I made the checks you told me, i don't if that will the problem, i checked the sticks command and i saw that the pitch is inverted in the software, when i aply positive pitch on the Tx, in the software shows negative and when i aply negative pitch on the TX, in the software shows positive, i don't know if this is the cause of my problem, but i inverted in the software and make everything right, have to reverse the aileron and the elevator commnand, now everything is working fine.
Do you guys think that this is the problem, only the pitch inverted in the software?
Luciano

luckyhs

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10-23-2009 03:01 PM  8 years agoPost 14
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Absolutely as the software is trying to correct for a problem that is not necessarily there. Check the sensor directions again as well as the other software parts and fly!

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-23-2009 11:25 PM  8 years agoPost 15
luckyhs

rrApprentice

Brasil

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Problem solved....
Hi guys,

PROBLEM SOLVED, the pitch was inverted on the software, i missed that, i have checked and re-checked but i miss that, i inverted in the TX and inverted again everything and all i can say is AWESOME HELI, now flies like a rock, very stable all the time.
I have to say thanks for all the guys that give a support and ideas from what it could be, and special thanks to Mr. Mel, he gave me total support on everything i asked him.

Thanks everybody and god bless MIKADO, awesome heli.

Luciano

luckyhs

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10-24-2009 12:22 AM  8 years agoPost 16
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Awesome! Good luck

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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Logo 600 › Strange problem with my LOGO 600 VStab 4.0????
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