I was up visiting a friend in another state last week. He had a CX2 and that little thing was kind of a blast to fly. I have been thinking about getting something for a while, but just never got the interest up enough. Well that did it.

I have an electronics backround, and so this stuff has always interested me.

So you have to love craigslist. I managed to get a CX2 and a CP Pro from a guy who does RC planes. He said he just couldnt get either to work, the CX2 just flips over, and the CP Pro just doesnt fly right.

Well the CX2 had a bad servo, it had a lot of oscillation and didnt center right. The centering could have just been from a crash and the arm moving teeth, but that oscillation wasnt right. So I went and got a new servo, $15.

The CP Pro, I havent even tried yet. I think I will wait. But I am pretty sure why it wasnt flying right. He had the main rotor blades mounted opposing like a plane. Ooops!

Anyways, thanks to soloboss's quick guide I got the CX2 almost hovering perfect, just ran outta battery.

Anyways, thanks to everyone involved in this site. I love internet forums, so much information. I will probably be back here a lot.

Just to add also, looks like I got some luck. Seems people have problems finding some of the screws for these things. Well the machines I work on are made in Japan, all metric. And all small allens also.

Aberration ~

Another victim....lol.. Welcome to RCU...! Lots of good folks here to help ya when you need it. Just holler !

Have a good one & congrats !


Jeff

Welcome. I would recommend to practice a lot on the CX2 and invest in a sim before you fly the CPP. I can almost guarantee you will crash in the first 30 seconds of flying the CPP. I don't want to sound mean, but it is a hard helicopter to fly for a beginner. I know I crashed in the first 30 seconds of flying the CX and CPP.

Nick

welcome and congrats , when you do get to the point of trying the pro , talk to us about some set up tips to tame the beast down a little , as well as pointers to be sure its as good as can be for first flights . and get a cheap set of training gear , the "ping pong balls on sticks" it will be well worth the $10 invest ment.

The ping pongs came with everything

I have a bit of an advantage. I have been doing combat sims for a very long time. And I also was beta testing Black Shark from Eagle Dynamics for about a year. So I got the basics of flight and all that down. I just need to tune the CX2 to hover decent. Right now I can keep it up in the air and move around, it just takes a bit more joystick I think that it should to keep her steady.

There is a balance issue with it I need to sort out. It vibrates a lot on the ground, but not really in the air.

And thanks for the warm welcome everyone.

in my experiance low rpm vibration is common with the cx2
and is your training gear for the cx2 or the cp pro? , the mounts are different between the two tho ya can make the cx2 mounts work on the cp pro , just be aware that there are different mounts avaiable for both heli's again welcome to the club.

Aberration - I don't know (haven't looked) at your elevation, but that will have a lot to do with every aspect of your heli flying. Ndoren is in Albuquerque at about 5300 ft alt and anything fixed pitch is a challenge. And of course it takes more pitch and headspeed to lift a CP helicopter. You have been warned.

You are entering the Collective of your own free will.
Here, we are all Teachers.
Here, we are all Students.
To resist would be futile.
You shall be assimilated.

Certainly another electronics tech head is very welcome.
Soloboss

Sounds like a bit of friction or 'stick' in the flybar / upper rotor assembly.
Or a slightly bent flybar. The flybar is the picky part.
Reduce flybar weight first to improve the performance. If you like the results, there are dozens of optional parts to make you grin. Just pop the weights out of the rubber weight boots and try that as a place to start.

Aberration,
Soloboss here one more time. I tossed a couple of posts at you and the second one is a bit misleading. When I noted that you may want to reduce the weight of the flybar, note that FIRST you have to get the helicopter flying really well. When it's settled and predictable and flies so steady that it's boring, THAT'S the time to remove the brass weights from the flybar boots.
Sorry for the ambiguous answer.
Solo

Well I live in ABQ, but I am currently in the SF Bay area for work.

Both helos had the mounts for the ping pongs. The top of the flybar was cracked, and at times it would come out, and the shaft was a bit bent when I rolled it, so i got an aluminum topped replacement.

So far I can get it to hover in about a foot square. It still needs some tuning though, that part seems like a long process as it seems you have to adjust the swash plate hookups and the proportional back and forth as one seems to effect the others.

It definately feels like the shake is due to the flybar. I can take the blades off and it still shakes. Although once its in the air it is not too bad, but you can see the tail shaking.

I just really need to work on the tuning for now. And I need more space than my hotel room allows. Since its the weekend I will take it out to the parking lot. I spun up the CPP, and holy crap!

So far pretty good though. Only managed to break 2 lower blades so far.

Shaking sounds like a flybar. Get a new one and see. If it keeps doing it then it could be the main shaft is bent. The slightest bend in those causes all kinds of problems. They are around $8 each and it is good to have an extra one on hand. The inner shaft also bends easy, usually at the top where the head attaches. Those are cheaper as the gear is not attached to the bottom like on the main shaft.

Just found the problem, and it was the fly bar.

There was a weight missing from one side. Even without that weight, I was still getting that baby to hover good!!!

I had to get a new battery, both the ones the guy gave me were pretty shot, they only lasted about 10min, and maybe full power for 5. Now that new battery, I gotta tone it down are I may put a hole in the ceiling.

So while I was waiting for the batteries to charge, I decided to fire up the CPP. Holy crap, that thing needs to be done outside. Broke those wood blades in about 15 minutes LOL!

After removing the remaining flybar weight, this thing fly's like a DREAM!

And not only that, my batteries are lasting at least twice as long if not more.

I can already fly it through the doorways now, just not able to stay that and turn around in them. Unbelievable.