Align 3G flybar less swash problem

[stunks]

If i was you i would check it without the blades on again first to be safe,try it strapped and not strapped and see if there is a difference.

Being slightly out from centre stick wont make a lot of difference as long as it is only slightly and either way it would not cause the issue you are experiencing.

Just a long shot here but is the Rx itself Ok or is that new also and unproven its not impossible to suspect that could be the source of the problem too,its unlikely but maybe bear this in mind as opposed to purely suspecting the 3g sysem itself.

i will try again with out the blades and see if its still happening and am using a brand new rx the one that comes with the dx8

[stunks]

There has been 3 updates on the tranny since they have been out.
not that it's that

My flybarless was a bit drunk today.
felt like the vibes from a rich engine causing trouble.
didn't get to the bottom of mine either

thank u i will update mine bu how do i update it would i need a lead or something

[stunks]

Also did you do the 3g setup as Bert said in this video?
push the stick forward and right.
The swash is trying to level when you lean the model?
ie lean to the right the swash goes up on the right?

i did look at the video and mine was just as he did it in the video and all the movements are correct

[stunks]

Hey.

The first thing that comes to mind is the obvious reversed gyro directions, but I am sure you've checked this.
It is of paramount importance to follow the 3G manual accurately, training the 3G unit it's limits on cyclic travel and in which direction it needs to correct for a given fuselage movement.

Second idea, there was a few badly inserted connection pins within the lead going from main unit to gyro sensors, I know as I had one myself :-(
This could explain why all seems fine until lift off at which point vibration levels are higher and if there is a bad connection it's loosing contact and resetting the system. It's easy to check, remove the lead from the 3G units and gently roll back the outer rubber plug covers. On mine I noticed the negative black wires crimped pin was looking different to the other 3, so I removed it as you would a normal servo connector and found it to be bent. It looked like it had been done on insertion but easily missed during inspection.

Power supply to the radio gear is also a point worth mentioning, as like has been mentioned with the increased amp draw on any regulator already fitted a Spektrum setup could suffer brownouts if it that's severe that the voltage drops too low.

Sensor mounting is also important, more so on the IC machines where high frequency vibration is apparent. When my 3G was mounted to my 700N I ran a Spartan mounting setup, foam pad ~ metal plate ~ thin foam pad, then an Align Velcro strap lightly looped over the sensor to stop it wobbling in aggressive manoeuvres but not so tight as to compress the foam pad.

No sub trims or travel limits have been altered out of DIR mode on the 3G?
What firmware are you running?
Where are your gain pots set to at present?
.

thank u for all this info i will check all leads just to make sure and i didnt use any sub trims ect na every thing in the radio was set correctly.

the problems only happen when u are just about to lift off thats in the hover point one mark above half stick

[Geek]

thank u i will update mine bu how do i update it would i need a lead or something

Link for the dx8 update
http://www.rcheliaddict.co.uk/transm...re-update.html
you need to register to get up dates
install update to pc
then copy to sd card
install sd into tranny
job done
have fun

[coolice]

thank u for all this info i will check all leads just to make sure and i didnt use any sub trims ect na every thing in the radio was set correctly.

the problems only happen when u are just about to lift off thats in the hover point one mark above half stick

Hey.

Your welcome matey, we'll get this sorted for you so you can enjoy the model.

The more I read your post on what leads up to the problems the more I wonder if it's a reversed cyclic gyro. You've picked the model up and observed the swash while tilting the model to make sure it's correcting in the opposite direction?

Its going to be a silly question but the sensor is orientated correctly, with the arrow from the 3G logo pointing front to back on the model?

Its good to hear you've not used sub trim, it is the easy way out for some during setup but I'm sure the 3G flies better if you can avoid it.

Another question is are you perhaps adding cyclic corrections while still on the ground? This can make take off interesting as the 3G is receiving a signal to change the attitude of the model but cannot so feeds in more control.
However if the model is not inspiring confidence the lift off then not using the controls is going to be hard to do.
.

[stunks]

Hey.

Your welcome matey, we'll get this sorted for you so you can enjoy the model.

The more I read your post on what leads up to the problems the more I wonder if it's a reversed cyclic gyro. You've picked the model up and observed the swash while tilting the model to make sure it's correcting in the opposite direction?

Its going to be a silly question but the sensor is orientated correctly, with the arrow from the 3G logo pointing front to back on the model?

Its good to hear you've not used sub trim, it is the easy way out for some during setup but I'm sure the 3G flies better if you can avoid it.

Another question is are you perhaps adding cyclic corrections while still on the ground? This can make take off interesting as the 3G is receiving a signal to change the attitude of the model but cannot so feeds in more control.
However if the model is not inspiring confidence the lift off then not using the controls is going to be hard to do.
.

i dont think its a reverse cyclic gyro and the sensor is the correct way around.

when i pick the model up and check the swash movement its doing it correctly on pre check before flight everything works fine but when u start up and above half stick thats when the problem comes in below half stick the model is fine, also when we tried the model without the blades with out touching the cylclic stick the swash goes on crazy and all over the place and thats what cause the model to tip the first time

[tourerjim]

The only other suggestion if someones not already mentioned is to set up machanicaly without the 3G & then see if it does it (minus main & tail blades) I've got two 3G's & never had a problem since latest update.