cyclic troubles,

[stevek32]

ok i've tried matching servo horns balls the same hole from center screw and its better but still not perfect, tried watching the finless vid after joining but it wont let me yet says i need certain privillages?,

i even tried swapping servo positions around on the rx with the pitch and aile but didnt change anything, i have got one cyclic reversed tho because it ran the wrong way i.e when all was going up it was coming down but i did this via the tx instead of everything being +60 on the swash mix i reversed the wrong way around one to -60 but i dont think that would be whats causing this prob,

i,ve tried centering the horns at mid stick and all are slightly off center as the horn cog wont let me put it on dead center, but they are all matching,

at mid stick swash seems level and top stick pretty close but bottom stick still a little bit out i,e higher at back,

its a good job im a patient person or this heli would be taking its maiden flight out the window without any batteries attached!!!!!



steve

[sacko]

What are the values on your endpoints?

[challis349]

I always find where the servo horn is closest to 90 and level them up with a bit of sub trim, people say don't, but I've never had any issues

[danch]

With your Tx at centre stick all the servos need to be at 90 degrees, if they are not then use some sub trim in the Tx menu to get them at 90 degrees.

When they are set the make sure all your links are the size they are meant to be & matching.

That should give you a level swash.

Is that how they are now?

Dan

[stevek32]

Right sub trimmed at center stick all level, when throttle up swash nearly level throttle closed swash higher at back!, its almost like the front servos arnt moving as much as the rear servo! And all end values are at 100 but even when fully throttled I can still use pitch on other stick so I know the servos are working! So frustrating!!

[challis349]

And you have double checked both mixes, mix 1 and mix 2, as I get the sake symptoms if I mix elevator with pitch. As I have just tried

[stevek32]

yep mix 1 says inh and mix 2 says the same, swash mix says aile +60% ele +60% and pitch -60% the one i reversed the rear servo seems to be moving further from dead throttle to top throttle seems like theres a broader swing compared to the other 2?

[tiddler]

Steve m8, I still think you should wipe the model memory and start afresh.
There was one thought I had though. Is it possible that Giant Cod have sent you servos that don't match.
The Tower Pro servos come in two different guises. The MG90s (Standard) and the MG90 (Higher torque) The MG90 will have a lower gear ratio to the MG90s and if mixed together on the cyclic will cause this exact problem.

[stevek32]

thanks graham but they are all the same mg 90s

LASTEST DEVELOPMENT

having replaced the battery everything has changed???,

swash plate now does the following;......

bottom stick = level

mid stick = level

top stick = level.........aha.........BUT!!!!!!!!

NOW elevater is lagging behind i.e front cylic rise by 1mm then rear kicks in? so from bottom (level) to mid swash isnt level (dipping at front) but from mid to top rises fine together is that normal? also elevator doesnt move until stick gets to halfway then it moves to keep swash level hence the lagging?

any ideas now?

[tiddler]

thanks graham but they are all the same mg 90s

LASTEST DEVELOPMENT

having replaced the battery everything has changed???,

swash plate now does the following;......

bottom stick = level

mid stick = level

top stick = level.........aha.........BUT!!!!!!!!

NOW elevater is lagging behind i.e front cylic rise by 1mm then rear kicks in? so from bottom (level) to mid swash isnt level (dipping at front) but from mid to top rises fine together is that normal? also elevator doesnt move until stick gets to halfway then it moves to keep swash level hence the lagging?

any ideas now?

Well I have to admit, your confusing the hell out of me
Youve just said and I quote....

bottom stick = level

mid stick = level

top stick = level

And in the next sentence you say the swash isn't level at mid stick

Also, cant see how changing the battery can have that sort of effect. Unless the first one was desperately over discharged, in which case its probably well and truly Ckuffed

Clutching at straws here, but you could double check all your connections and solder joints are good and everything is plugged in firmly.
Another possible is a duff rx perhaps

[stevek32]

sorry graham i meant as the swashplate moved from bottom to mid it wasnt level then when it hit level stick swash was level again thro to top of stick,

but i think i got duff rear servo as it wasnt moving from bottom to middle then it caught up to itself and was ok, but i altered the trim and didnt really help so reset trim again and all of a sudden rear servo is moving again from bottom thro to top there is no lag again swash isnt level again at top or bottom only at middle.

so i reckon rear servo was sticking on previous post would that cause the hieghtend servo operation compared to the other 2?

[tiddler]

Steve, None of this is making any sense.
Yesterday you were saying the front servos weren't moving properly or far enough. Now your saying the front ones are moving properly but the back servo isn't, or wasn't a moment ago, but now it is ???

Suggestions are the same as in my last post, Plus make sure there is no binding in any of the links etc. Work the servos back and forth a few times using the radio in case they just need their bearings bedding in.

Other than that, I give up

[stevek32]

you give up? lol i do too!!!!,

think i may give up on the heli thing and fly planes instead!!!,

once again thanks for all your help




regards



steve

[tiddler]

you give up? lol i do too!!!!,

think i may give up on the heli thing and fly planes instead!!!,

once again thanks for all your help




regards



steve

That's the spirit

Come on, don't be giving up so easily. Just put it aside have a cuppa or better still a beer and come back to it tomorrow. Then go back over everything carefully one step at a time.

[1chris]

There is some pretty basic stuff you appear not to be grasping here, I think a change to a plane might not be a bad idear