beastx problem

[joeplumber1]

Hey just got my trex500 back together went out for
testing and when i spooled up right before liftoff
it immediatly tilted right. I fiddled with the throttle
a little bit (decreasing increasing) then it was fine.
Put another battery in did the same thing. Now i
do have the good mounting gel tape on it its
mounted in the traditional spot on top of the boom
mount everything is new tracking looked great
when it finally went upand i dont really see any
bad vibs or shaking. Now i did use a hk tail boom/
tt combo just cause of the price. Gears look ok on
that kit but the boom seems a touch small in diameter
and the tt is aluminum with the bearing fixed in the
boom. I ran two tt bearings in the last one before the
crash do you think it maybe doing somthing there to
cause this. Oh i did notice a little chip in the tailblades
also. Any suggestions

[Gladius]

I run three bearings on my TT - one in the spot the manual tells you, and then one on either side of that. So that would be my first recommendation. Next would be to check that HK TT very carefully. Any little imperfection can lead to vibes when it's spinning at 12,000 rpm. Finally, get a good pair of calipers so you can measure the diameter of the boom, and check it against an actual Align boom (I just checked mine, and it is 0.631 inches in diameter). If it is smaller, then it's probably not getting held tightly enough by your boom block, and that will definitely cause vibes.

[joeplumber1]

Thanks gladius i did check it and it is a huge differens
almost 4 thousands wich is pretty big when you need
your stuff tight. I have a call into amain for some align
parts live and learn right. I m also getting align blades
2 reasons 1 they were cheap like 30 bucks 2 i struck
them when it was trying to tilt. My understanding with
they beastx is it has to be pretty smooth. I guess the
hk stuff is good for fb birds so ill keep it for a rainy
day and im thinking of a blade balancer im sure you
will say cheap insurance right lol by the way i think i
might be catching you in the fight against gravity lol

[Gladius]

Maybe, but I just acquired a 600, so I'm sure my total will start climbing higher! (Shouldn't it be the helis that are climbing higher?)

[Solmanbandit]

I run three bearings on my TT - one in the spot the manual tells you, and then one on either side of that.

I personally have not found a need to run more than one bearing. I run one where it is suppose to be and works perfect on my 450, 500 and 600.

With the tilting, are you popping it off the ground or trying to ease it off the ground? Also are you sure that the gyro's are compensating in the correct direction.

[joeplumber1]

Yes gyro comp is right . I just got my align tt parts
put it together and perfect. I quess i had vibs from
hk tt set with align parts it doesnt tilt or drift and i
dont have to pop it up quickly im able to spool it up
and just lift off. I did take gladius's advice and put
3 tt bearings on it did it help dont know is it working
yes that is the key i guess right. With all you guys
who enjoy this hobby that likes to help others you
all are great people keep up the good eork and flying
now i have to learn to fly with out crashing so much
ha ha ha thanks to all

[Gladius]

I think it was compensating for a TT that wasn't perfectly true, and it seemed to help, so I've been doing it ever since. But I would like to think that the engineers at Align analyzed for vibration modes when they designed their TT and realized that they only needed to worry about the first bending mode, and so only installed 1 bearing.

[joeplumber1]

I have to agree besides puttung two extra bearins
as small as they are it dont add any weight considering
how heavy it is anyway plus i think it just insures that
the tt stays straight so in my opinion your suggestion
for three is a okay for me

[SumOFparts]

The moral of this story should be - stay away from the HK parts on your helis - everything seems to be a little off - like was copied from afar - and a gen back.
Would just use HK for wire and do dads - not their trex parts.

And this is coming from a duct tape and bail wire person - bought a whole HK 600 tail assy - what a joke - like it was from blade cp era..........tail pitch slider broke on second flight.

If you bought a whole HK heli - it wont be that way long - do it right the first time.....

So if I spent my money with em - I can damn sure criticize em if I want......

[joeplumber1]

I cant say that they do have some good stuff just
saying when it needs to be precise such as tt my
opinion align is better now thst said the side frames
i got them from hk they were 15 bucks versus 65
from like amain which i order alot from them but 15
or 65 you know where im going and i did compare
and they are the same

[Solmanbandit]

I was just thinking and am wondering if adding the extra bearings in the TT is hiding the real problem. Like I said before, I have been running one bearing for years in all my heli's. Whenever I have found a problem and thought it was my issue was with the TT, it turned out to be something else. In one case, I found the torque tube front gear was out of tolerance.

[joeplumber1]

Your absolutly right but in my case everything was
great till i crashed it wasnt till i tried to cheap out
of the rebuild. I do believe it was the tt espeicaly
after really looking at the hk stuff probably good
enough fb heli i dont know but didnt work fior me.
You know this is what i like about this site hashing
it out to figure it out good stuff . Oh by the way
erything but electronics and grip and boom mount
maybe some smaller stuff was replaced

[Solmanbandit]

I used to always go the cheap route and kept causing issues. I still do to some extent, but I am a lot pickier and know what to use and not to use. Some things I won't use anything but Align because I had issues with certain items.

[SumOFparts]

Let me revise - I'm really critical of those dirt cheap heli kits - and their align part substitutes - your taking your chances. Their TT stuff - i'd really be careful - worry gear mesh - or slimming a gear here or there.....
Cheap plastic shatters - get what u pay for......What's your time worth diggin out a busted part?

Frames and booms - fins - most likely no prob if you have a dremel handy.

The lipos - servos - chargers - ect. - alot of people had good luck and happy with there value....

Its really just those kits - and cheap ass parts - I'm an official cheapskate - and still wont touch em......That 600 boom was last chance I gave em.