The HK 450 story continue - Page 527 - RC Groups
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Feb 15, 2013, 08:56 AM
Mmmmmmm!
WiseDuck's Avatar
Align TTs are hollow tubes, right?

Machining a 300mm+ aluminium rod is a bad bad idea. No way any of these will stay straight all the way from the workshop to a customer.
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Feb 15, 2013, 12:51 PM
If it Works, You Better Fix It
VelocityRC's Avatar
Quote:
Originally Posted by mhills51
i always use align tt i swear i had a copterx 500 one i could bend with my jeti mind!
+1
Feb 15, 2013, 12:52 PM
If it Works, You Better Fix It
VelocityRC's Avatar
Quote:
Originally Posted by WiseDuck
Align TTs are hollow tubes, right?

Machining a 300mm+ aluminium rod is a bad bad idea. No way any of these will stay straight all the way from the workshop to a customer.
Yes, Align TT's are hollow.

Bill S.
Feb 15, 2013, 01:15 PM
Registered User
Quote:
Originally Posted by WiseDuck
Oh FFS!

So I guess the postal service decided to play football with my package. The torque tube arrived severly bent.

Couldn't Hobbyking pick a harder material for these?! These are SO easy to bend! Time to order some Align parts from a local store then. *sigh* At least I can use the bearing to reduce the vibrations on the one I have in my HK450.

Next time you order a TT always order as a pair with a tail boom..Then if the seller is smart, they can put the TT inside.
Feb 15, 2013, 02:28 PM
Mmmmmmm!
WiseDuck's Avatar
That's what I did. Hobbyking kept them separate. Boom was fine. TT really wasn't...
Feb 15, 2013, 05:12 PM
Looptastic!
sp00fman's Avatar
Quote:
Originally Posted by mhills51
I always use align TT I swear I had a copterx 500 one I could bend with my jeti mind!

I knew it!!!
Feb 15, 2013, 05:20 PM
Screwed Again My Friend
jombo's Avatar
Quote:
Originally Posted by sp00fman
I knew it!!!
LOL , he means these guys
Feb 15, 2013, 06:20 PM
Registered User
Quote:
Originally Posted by WiseDuck
That's what I did. Hobbyking kept them separate. Boom was fine. TT really wasn't...
That's a real shame. The ebay sellers are alot better with packing nowadays..
Feb 15, 2013, 08:32 PM
Registered User
K , so I got to fly my tarot 450 pro v2 fbl a little over the week, but I feel like there is something wrong.

My input feel like they take too long to translate to movement.

On the bench , without the head spinning, the servos seems to respond well . but once in the air it feels disconnected. Could it be the TX/RX or possibly the servos cant handle the movements under the load of a spinning head, or possibly a setting in my ZYX-S gyro settings? Or could it be the "play" in my swashplate?


Not sure if this means anything but I cut off a piece from my RX's antenna.

I have included an image of the cut off piece, and a screenshot of my gyro settings.

I can't really enjoy it yet because I feel disconnected
Feb 15, 2013, 08:55 PM
Zippy Puffer
2Doggs's Avatar

RC Deadband


I'd reduce the RC deadband values - I fly with 10 on cyclic and 20 on the tail. You have 40 and 64, which will definitely make it feel vague.
Feb 15, 2013, 09:25 PM
Registered User
Good to hear! Will try that out first thing tomorrow, thx. was hoping it could be something as simple as that. That screenshot means very little to me. Some more reading up on the gyro settings might do me some good.
Feb 15, 2013, 10:44 PM
Zippy Puffer
2Doggs's Avatar
At the moment, you haven't got any cyclic to tail or collective to tail pre-compensation set either. It can help lock the tail in. Depending on the sense of your tail servo, you might need either a negative or a positive value - but the thing to watch for is that tail rotor blade pitch should increase both sides of neutral for either collective or cyclic stick movements - i.e. the tail slider should move towards the boom. I use a value of 4 for my cyclic to tail mix and 8 for collective to tail.

One way of determining the collective mix is to do pitch pumps with the tail set to rate mode, and even doing that with a deliberately low tail gain set. When you have the pre-comp value set right, it should eliminate any tendency for the tail to swing either in an ascent or a descent.

Happy flying!
Feb 15, 2013, 11:24 PM
Registered User
Do the pitch pumps have to be in flight, or can i just do it on the ground or in a low hover? It's going to be difficult to tune that in if I have to go to a field as I don't have a portable programmer. Great info btw, I'm looking forward to having a much better session tomorrow
Feb 16, 2013, 06:26 AM
Registered User
tsakali,

As well as dropping the dead-bands, what expo do you have - too much expo can make your heli un-responsive, as can too little headspeed.

Good luck,
Mike
Feb 16, 2013, 06:45 AM
Looptastic!
sp00fman's Avatar
Quote:
Originally Posted by tsakali
K , so I got to fly my tarot 450 pro v2 fbl a little over the week, but I feel like there is something wrong.

> .... <

I have included an image of the cut off piece, and a screenshot of my gyro settings.

I can't really enjoy it yet because I feel disconnected


I think your Receiver would feel pretty disconnected also without its antenna.
Youd be lucky to get any range at all. You really think the antenna is just for show?

Best thing to do is open up your receiver and solder on the part you cut off directly to the cirquit board.


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