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Old 02-13-2019, 03:26 PM   #1 (permalink)
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Join Date: Jan 2019
Location: Belgium
Default Aileron not centered

Hello




I can't figure out how to make sure my left and right aileron stick input gives the same amount of left and right tilt for the heli (xk k110)





Below here I wrote the steps I followed to try and calibrate this:
(please let me know if I did anything wrong)


- I've switched the transmitter off so the servos go to their center,
- Then I adjusted lengths of the servo rods to make sure the swash plate is perpendicular to the main shaft.
- Switched on the transmitter, did a gyro calibration (sticks in left and right bottom corners) perhaps completely useless to do this, but since I don't fully understand what I'm doing, why not do a gyro calibration :p

- Did the 6G calibration (sticks down), fly for 10 seconds, sticks down again.
- My trim buttons are all set to 0
- In the advanced trim menu everything is also set to 0%


Results:

- When I try to hover in one spot, I notice that my aileron stick is not centered, but more towards the right.

- When I now fly to the right, it really tilts a lot and accelerates fast towards the right.
- When I fly left, it tilts less left than it does to the right, and flies slowly towards the left.


Why is the left and right aileron not centered?






Additional information:
- I removed all springs from my transmitter sticks, so I don't "feel" where the center is. Could this cause the problem?
- When letting the servos go to their center by turning the transmitter off, I noticed the servo in the right back is a bit lower than the others. About 5degrees lower.




Thanks in advance ^^
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Old 02-17-2019, 07:30 AM   #2 (permalink)
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Join Date: Jan 2011
Default

Not sure if turning the transmitter (tx) off all servo goes to center position (90*).
Then you saying that after adjusting the length of the servo links, to level the swashplate? you see that the heli drifts when turning to the right and very slow to the left.
And that you don’t know what you are doing....? But you did it anyway

When you played with servo links length you took off what the manufacturer thought was right to compensate what you see that one servo horn is off center, and when they tested it on the shop was no drift, you tried to fix it...

Will give it a shoot.

Are you flying in 6g mode?
Remove servo horns from servo, use an small screw driver, if you don’t have one, don’t do it.
Power on tx and heli, enable throttle hold, enable 3d mode on your radio, go midstick on radio, do not power off radio, fold blades parallel to boom, do you see 2 blades when looking at the heli on the side?

K110 blade tracking and equal distance between the blades in 3g mode (5 min 56 sec)


And for equal values on your sticks commands, aileron, pitch ....

Xk k6 radio (3 min 47 sec)
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