RE: Blade CX-2

RE: Blade CX-2
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RE: Blade CX-2 - 1/28/2008 1:55:52 AM

RC David

Posts: 243
Joined: 11/11/2007
From: Chicago, IL, USA
Status: offline

Hey guys, after searching the forums...

Not sure if you can help me but here goes.

I've had my CX-2 since Oct. 07. Had probably a dozen crashes but mainly only broke blades. I finally added a carbon fiber boom after wrecking the stock plastic tail/boom. I put that on and it flew great. Then I got cocky when flying at the local gym last week and dove it into the ground. OUCH!

I thought I totalled the whole thing but the main frame seemed ok (and still looks intact). I've now replaced:

- lower head with the blue aluminum E-flight rotor head (it came with the blue aluminum upper head)
- all 4 blades
- flybar
- both inner & outer shafts (after seeing too much wobble)
- battery holder
- canopy

Now the blades track fairly even but the heli wants to pitch right (even with full trim to left). It does not fly as stable as it did before either requiring much more correction even to hover. It did not do this before the upgrades so I don't know what is wrong.

Any ideas would be greatly appreciated.

Thanks.

Dave

(in reply to eat2muchrice)

Post #: 2501

RE: Blade CX-2 - 1/28/2008 2:27:25 AM

evdreamer

Posts: 2429
Joined: 8/12/2007
From: Lincoln, NE, USA
Status: offline

Try raising the right linkage looking at the back a half a turn at a time to the left until it hovers in one spot.

_____________________________

Since I started this hobby money seems to keep disappearing. :)
T-Rex 450SEV2, Gaui 200 SD

(in reply to RC David)

Post #: 2502

RE: Blade CX-2 - 1/28/2008 4:09:31 AM

kcobra

Posts: 31
Joined: 2/21/2005
From: , MO, USA
Status: offline

I'm pretty much at a loss with my CX2. Up until around Christmas time it flew pretty well. It would hover in one spot and I could make decent left and right circles with it. Then things started going down hill. At some point it started wanting to go forward more and more. Now it's to the point it is hard to even keep it hovering in one place. If I let go of the sticks it will "wander" in roughly a 4 foot circular pattern. Sorta like a circular pendulum. If I try to make a circle with it I get about 1/3 of the way into it and it looses forward momentum.

I've adjusted the push rods every which away. To try and keep it from going forward at neutral trim when doing a tail in hover, I've got to turn the left push rod so far down that the swash plate is very noticeably sloping backwards from the nose of the heli. Thinking it might be something with the swash plate, I replaced it and the lower head with Microheli aluminum parts. That didn't help.

Any ideas?

(in reply to evdreamer)

Post #: 2503

RE: Blade CX-2 - 1/28/2008 7:59:23 AM

Kamov

Posts: 174
Joined: 5/13/2007
From: CA, USA
Status: offline

your having TBE problems...do a search on this forum

there's plenty of post on how to fix TBE

(in reply to kcobra)

Post #: 2504

RE: Blade CX-2 - 1/28/2008 4:33:18 PM

toddzhere2

Posts: 144
Joined: 1/19/2008
From: Valencia, CA, USA
Status: offline

I had the Xtreme CNC blade grips with the eflite aluminum swash plate, upper and lower rotor heads, and the Xtreme hard blades on my CS for some time. Love the fact that I haven't broken any blades in a month and the heli fly’s perfectly.

However, I have recently removed the CNC grips and replaced them with the Dynam Vortex plastic grips to reduce the rotating weight. Big difference in how quickly the motors spoon up now. Unfortunately, the larger ball size for the linkage on the lower rotor forces me to use the Dynam linkage between the lower blade grips and the swash plate, Therefore, I must use the Dylan Vortex plastic lower rotor head as well because of the way the linkage is held by the lower rotor heads.

Any ideas as to what heli uses the larger style linkage ball on the blade grip and uses the elite style lower rotor head?

(in reply to Jellyson)

Post #: 2505

RE: Blade CX-2 - 1/28/2008 5:11:04 PM

Coyote64

Posts: 429
Joined: 12/21/2007
From: Cleveland, UNITED KINGDOM
Status: offline

When i did this i found the same (larger ball links ) and i had to use the vortex swashplate as the links were too small for the eflight swash

Now i broke the swash ive ordered eflight aluminum swash but have just realised that it wont fit with the vortex link and rotor head (lower) hmm...........bugger...............

Anyway to fix this ? ideally different size links from swash to rotor head ?

_____________________________

At the time of this message i have enough spare parts to build three cx`2......... by this time tomorrow ill have none.....

(in reply to toddzhere2)

Post #: 2506

RE: Blade CX-2 - 1/29/2008 12:31:55 AM

DaxFX

Posts: 693
Joined: 10/6/2007
From: San Juan, PUERTO RICO (USA)
Status: offline

quote:

ORIGINAL: kcobra

I'm pretty much at a loss with my CX2. Up until around Christmas time it flew pretty well. It would hover in one spot and I could make decent left and right circles with it. Then things started going down hill. At some point it started wanting to go forward more and more. Now it's to the point it is hard to even keep it hovering in one place. If I let go of the sticks it will "wander" in roughly a 4 foot circular pattern. Sorta like a circular pendulum. If I try to make a circle with it I get about 1/3 of the way into it and it looses forward momentum.

I've adjusted the push rods every which away. To try and keep it from going forward at neutral trim when doing a tail in hover, I've got to turn the left push rod so far down that the swash plate is very noticeably sloping backwards from the nose of the heli. Thinking it might be something with the swash plate, I replaced it and the lower head with Microheli aluminum parts. That didn't help.

Any ideas?

check the flybar! maybe is bent and giving forward colective input to upper rotor. the stabilizer bar will give input like swashplate to lower rotor only that in upper rotor the input is made by heli movement. also check if the iner shaft if is bended on the tip.

_____________________________

Sorry you need to play Tetris with my english !!
www.youtube.com/daxfx

(in reply to kcobra)

Post #: 2507

RE: Blade CX-2 - 1/29/2008 12:38:37 AM

chris1379

Posts: 451
Joined: 3/21/2006
From: Dayton, OH, USA
Status: offline

quote:

ORIGINAL: DaxFX

chris what oil you are using?

It's an oiler pen from Radio Shack. It's just a lightweight oil. Nothing special.

Chris

(in reply to DaxFX)

Post #: 2508

RE: Blade CX-2 - 1/29/2008 7:40:49 AM

RC David

Posts: 243
Joined: 11/11/2007
From: Chicago, IL, USA
Status: offline

evdreamer,

I tried raising the right linkage but it still pulled to the right and now I broke yet another blade. This is getting aggravating. Now I read that I should not have replaced the lower rotor head with the aluminum one but just went with the aluminum swash. I only added the lower aluminum head because I broke the tiny posts off the new stock one I'd just installed so thought I'd just get the stronger aluminum version.

I currently don't even have room to fly it in the house (with the erratic flight) so will have to wait until Fri when I can take it to the golf dome for RC flying night. I wish I had more than 1 heli.

Dave

(in reply to chris1379)

Post #: 2509

RE: Blade CX-2 - 1/29/2008 3:21:54 PM

bonsaidude

Posts: 50
Joined: 1/19/2008
From: , WA, USA
Status: offline

quote:

ORIGINAL: RC David

I tried raising the right linkage but it still pulled to the right and now I broke yet another blade. This is getting aggravating.

I currently don't even have room to fly it in the house (with the erratic flight) so will have to wait until Fri when I can take it to the golf dome for RC flying night.

You could try trimming it out on a slick surface. Just enough power to get it to start sliding. That should get you pretty close.

(in reply to RC David)

Post #: 2510

RE: Blade CX-2 - 1/29/2008 3:39:10 PM

DaxFX

Posts: 693
Joined: 10/6/2007
From: San Juan, PUERTO RICO (USA)
Status: offline

some1 knows any cool light system that can be use on the 5th channel ? I flew a lot in the night in front of home .

_____________________________

Sorry you need to play Tetris with my english !!
www.youtube.com/daxfx

(in reply to bonsaidude)

Post #: 2511

RE: Blade CX-2 - 1/29/2008 5:52:04 PM

eat2muchrice

Posts: 846
Joined: 11/8/2007
From: Novato, CA, USA
Status: offline

DaxFX
Make your own for about $1

http://www.rcuniverse.com/forum/m_6861470/anchors_6861470/mpage_1/key_/anchor/tm.htm#6861470

_____________________________

<<--- My dogs first look and sniff at her worst nightmare.

(in reply to DaxFX)

Post #: 2512

RE: Blade CX-2 - 1/30/2008 1:27:32 AM

DaxFX

Posts: 693
Joined: 10/6/2007
From: San Juan, PUERTO RICO (USA)
Status: offline

quote:

ORIGINAL: eat2muchrice

DaxFX
Make your own for about $1
http://www.rcuniverse.com/forum/m_6861470/anchors_6861470/mpage_1/key_/anchor/tm.htm#6861470

that is exactly what I want. looks awesome. can you be a lit