Ikarus ECO 8 - EP
- ARF
Seller:gilweiss Details:
$400.00
| 7/5/2008
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Posts: 75
Joined: 4/16/2007 From: Sydney, AUSTRALIA Status: offline
Turns out my step dad is bringing it home early, tonight, around 8-9, when he gets home, so any initial things i can do to tune it for flying tomorrow???? I AM SOOOOO EXCITED, EARLY HELI AND IM 14 TOMORROW!
Posts: 75
Joined: 4/16/2007 From: Sydney, AUSTRALIA Status: offline
Where can I get that small bolt that holds the head onto the shaft, as it snapped when i had a hard landing today is my bday, AND I CANT FLY MY F***ING HELI!!!!!!!!!!!!!!!!!!!!!!
Posts: 12
Joined: 11/23/2006 From: EU, FINLAND Status: offline
Hi Psionic,
Yes, the pitch jump it is typically a transmitter error.
Here are some photos of how I scaled the TX pots with fixed resistors or trimmers.
- Juha -
quote:
ORIGINAL: Psionic001
Hey Juha,
I posted before that I'd try and get a replacemment TX, but no luck. My RX also has some melt marks on it, but the negative pitch jump that you have seen occurs with mine too. So I'm thinking it IS the Tx and not the Rx. What do you think?
Do you think you could post a pict and some more detail about how/where to solder these resistors. I've got very little knowledge on modifying electronics like this, but I'd like to have a go.
Thanks
Psi
quote:
ORIGINAL: J. Hartikka
Lynx transmitter errors
My Lynx 380 had some soldering faults in its transmitter already as new. I wonder if any of you did get a tx with similar errors? The directions of 3D and gyro switches were reversed (see photos). So was the pitch trim on the left upper corner of the tx. I resoldered them to work correct. Also, the pitch trim pushed the blade slider against its end. I rescaled the trimmer with an added 5 k resistor.
The aileron and elevator controls produced sudden pitch jump at their ends as they seemed to drive the servos against their stops. Their ranges had to be limited by soldering 2 k resistors to each ends of the potentiometers - a kind of fixed D/R modification. Also, the elevator stick fad a troublesome affect on pitch. Pushing the stick would drop the heli down, and pulling it would add lift. I did away with this effect out by moving the links in the two rear servo horns one hole closer to servo axle. Now the pitch seems to remain rather unaffected from elevator movement.
The pitch scaling trimmer on the right upper corner (see pic) of the tx produced a different problem. If it was set to low (ccw) in 3D mode, it produced sudden jump from positive to negative pitch. This is evidently a transmitter mixer programming error. In flight, it would probably have smashed the heli against ground. In its clockwise position the trim did not twitch the rotor pitch, so I readjusted it by scaling out the defect section by soldering a 12 k resistor on the ccw end of the trimmer pot.
Posts: 75
Joined: 4/16/2007 From: Sydney, AUSTRALIA Status: offline
Well, i JUST finished packing my Manufactured faulty helicopter, It was missing lke 6 things, including a bent rotor shaft connector thingo, and i HAVENT even flown it, that stupid seller better take it back. If he doesnt, what can I do?
Posts: 75
Joined: 4/16/2007 From: Sydney, AUSTRALIA Status: offline
The guy has apologise sincerely, and is delivering one to my dads work toiday, in exchange for the bad 1, should have it up this arvo!!! or tomorrow arvo
Posts: 12
Joined: 11/23/2006 From: EU, FINLAND Status: offline
HI,
The pitch travel trim on the right up pot is the one you need most to correct, I guess.
The added scaling resistor just cuts away the most risky part of the pot - the travel with heavy pitch jump, and leaves only the part of the trim travel without jump. The higher resistance value of the resistor, the more it cuts away from the pitch trim movement.
Because the resistor limits the pitch trim total travel, you may have to do coarse pitch adjustments by adjusting servo horns, if necessary.
Posts: 75
Joined: 4/16/2007 From: Sydney, AUSTRALIA Status: offline
I have just got my new heli no faults, perfect, but havent got the guts to get over 1in off the ground!!!!way diff to my 4ch, I have fixed the training skids,and am going to learn this w/e
I have just got my new heli no faults, perfect, but havent got the guts to get over 1in off the ground!!!!way diff to my 4ch, I have fixed the training skids,and am going to learn this w/e
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All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> RE: 2006 Colco LYNX 380XL 6CH RC Helicopter 
RE: 2006 Colco LYNX 380XL 6CH RC Helicopter - 
