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Old 10-11-2008 | 08:08 AM
  #14  
bluecnc
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From: Castle Hayne, NC
Default RE: CX2 problems

Hello captain,

The first thing I would check that would cause the wobbling is your blades being out of balance. I have crashed so many times I could have bought two more brand new birds with what I spent on replacement parts. I tend to run before I can walk. Anyhoo. It takes quite a bit to bend the inner or outer shaft. To check which shaft has the problem turn on the transmitter then plug in the battery. When everything is ready to go take the stick on the left side of the transmitter and move it completely to the left and give it a little throttle until the bottom blades are spinning pretty fast. Does it wobble? Power down and move the stick all the way to the right and throttle up again until the top blades are spinning fast. Does this cause it to wobble? I use this method to find out where to focus my attention. 9 times out of 10 my blades have mismatched weight. Remove the blades from whichever shaft is wobbling and snap them together. Take two soda bottle caps and place them upside down on the counter. Now set the balls on the blades on the edge of the caps. You may have to make a few slight adjustments to get everything to move freely. Push down lightly on the blade that is up. If it stays down or returns back up slowly the blades are close enough to be called balanced. If the blade you pushed down returns back up quickly you may need to add weight to that blade. I prefer electrical tape. It is black and blends in rather nicely. Cut a piece of tape off about an inch long and stick it to the bottom side of the blade that needs correcting. As far out as possible. Remove or add tape until the blades are balanced. When I have to replace blades now I make sure they are balanced first. I hate to fly a heli with the jitters. If this didn't correct the shaking then one or both of your shafts are bent or the fly bar is bent. Let us know if this works.

Rob