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@drcigg Must say makenzie71 has given some great advice " something common and right out in front" has always been the problem with me also-walked away looked at heli the next day and bingo-shaft looked ok but was bent down low did not pick it-
Put the heli in your hand and just look at it,and work out how this little bird flies,sounds stupid I know. So let us say you have got your new one-yes-ok now listen and remember how it sounds,remember the sound of motors on full power,the turbulence performed by rear tail motor-
What I am trying to say as I am a nutter on Syma helis and planes I can listen to say a crashed heli and now pick the problem like a doctor -yezz am mad,balance holding it in your hand the sound of the motors and so on-Flying planes is the same shit-flew my AXN Floater today with a camera onboard,straight away did not listen to this rc glider,center of gravity was wrong-bad crash,not the gliders fault but mine-there you go totally mad,but hell love the rc world-take care guys 
"Fly like a butterfly sting like a Syma" http://syma107.com
I think this thing will be spare parts. In the process of removing the gears I tore the blue wire that is plugged inside the motor and I can't figure out how these gears go back in. One hour is long enough of putsing with this thing.
I bought another one for 25 bucks. Hopefully the next one lasts longer.
On the bright side I have all the spare parts if for the new one.
hmmm....something has to be amiss. I'm pretty new to these things so I certainly don't have all the answers, but it's got to be something common and right out in front.
If you hold the copter in your hand and run the blades full blast do you hear any grinding or mechanical buzzing? It'll probably be hard to tell over the blades, I know, but I woul dtry and check that. Might take the blades off for a better sound check.
With it all assembled can you physically move the drive shaft laterally across its axis?
I took absolutely everything apart, even took out all the gears.
The shaft is straight, no broken plastic pieces by the rotors. All the gears look good. My only thought is maybe the shaft is bouncing and causing the gear to break teeth. I have no idea. Unfortunately I am past the point of return since I have had it over 3 months.
I would think alignment. Are there anysigns of damage anywhere else on the copter? Was it this way new out of the box? I wouldn't bother trying to find fixes and just return it for exchange.
The helicopter would spin but not fly off the ground. I checked for any hair stuck in the gears or shaft and found none. I did find 3 teeth missing on a gear so I changed the gear. I put it all back together again and tried to fly it. It did the same thing just spinning but not going off the ground. I checked the gears and the same gear broke 2 teeth again.
Any ideas what would cause the gear to break the gear that fast?
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