Blade CX Servo settings????? [Archive]

Daveronline

05-28-2007, 08:56 PM

:arggg: I have to set my trim all the way to the left and all the way back and when I fly it, and I still have to apply more pressure in that direction to get it to hover in one spot. The blade also creeps clockwise no matter what I do. Can some one point me in a direction. I think my learning curve would accelerate if I didn't have this issue .

rufusis

05-30-2007, 06:30 PM

I fly a CX2 and had similar problems. A guy here on the Freak posted this info that helped immensely. Sorry, I cannot remember his name to give him credit but I saved it for my own personal reference. First make sure the heli is balanced. Consult the manual, you may need to 'shim' the battery aft to get the CG right. The idea is to level the swash mechanicaly with the servos at 90 deg. Anyway here is the quote I saved from the helpful Freak.

"Need to mechanically trim as follows....one direction at at time. First center all trim sliders on TX.

Trim for rotation of tail, ignore sideways or fore/back drift. Read manual, adjust rear trim pot gradually disconnecting battery each time, until heli doesn't rotate either way...as close as you can get anyway. It will rotate gradually as battery gets lower during flight.

Next trim out sideways drift..if it drifts left, unsnap right servo link from swash, turn clockwise one full turn (ie. shorten it), reconnect and check. If it drifts right, lenghten the right servo link...turn counterclockwise.

Last, trim out fore/aft drift...if it drifts back, unsnap both servo links and turn counterclockwise same amount...half or full turn, ie. lenghten them. If it drifts forward, shorten both servo links."

It is sort of tedious but once you get it you can hover 'hands off' for some seconds.
There will always be some drift, but you won't be fighting the bird. I have had to use the above technique after installing upgrade parts, moving the linkages out on the servo horns, and after binding my DX7 the the 4-in1. Hope this helps. Let me know.