I just put the battery in my Mcpx v2 for the first time and I'm having the following two issues
1. The servo on the front right is buzzing. I can feel it twitching with no input and its loud
2. The main motor / rotor is bound up. It will spin up but only after it "breaks free". If I disconnect the battery, and try to turn the rotor gently it will skip a tooth rather than turn the motor.
This is my first heli other than the mcx2, but it does nothing like this. This one has not done anything other than try to gently spin up 3 times. Video to follow shortly.
Advice?

Blade Mcpx v2 problem (0 min 28 sec)

The video shows right what it did from the beginning. From the very first time applying battery and trying to throttle up. Sorry the video isn't better but you can hear the servo, and the motor straining without being able to move the main rotor.

I should add, it looks like the main gear is fine, meshes with the motor pinion, no broken teeth. Seems the motor is 'stuck' more than anything, and I'm not sure what's with the servo.

This is not a co-ax and you should not try to spin it. Sounds like broken gear.

Horizon guarantees that it works out of the box. Yours doesn't. Call them, they will replace it. If bought at hobby shop, they also will replace it assuming they have another in stock.

Originally Posted by arbilab

Horizon guarantees that it works out of the box. Yours doesn't. Call them, they will replace it. If bought at hobby shop, they also will replace it assuming they have another in stock.

Yup, that's what I was coming around to. Will call them tomorrow.
Thanks.

So I tried it a bit more. It will spin if I throttle up further but it starts with all I can describe as a "snap", then the whole heli starts to spin on the carpeted floor as I go a bit further. Then as I slow down it snaps back to a stop.
I assume this is not normal, my friends Msrx doesn't behave anything like that.

Of all the helis I have the MCPX is the only one that doesn't spin freely with no power. I am told this is normal. I have a genius CP, several FP micros and even a Blade SR Huey and they all spin free without power but the MCPX I bought does not and when I increase the throttle slowly it takes getting to a point on the throttle where the blades finally go into action.

Perhaps someone else here can explain the why behind this but I believe it is a normal characteristic of the type of motor used in the MCPX (at least V2, I don't think the BL does this).

Jim

Originally Posted by jcmors

Of all the helis I have the MCPX is the only one that doesn't spin freely with no power. I am told this is normal. I have a genius CP, several FP micros and even a Blade SR Huey and they all spin free without power but the MCPX I bought does not and when I increase the throttle slowly it takes getting to a point on the throttle where the blades finally go into action.

Perhaps someone else here can explain the why behind this but I believe it is a normal characteristic of the type of motor used in the MCPX (at least V2, I don't think the BL does this).

Jim

Well, that is certainly helpful! Does yours also have a servo that is in continual motion from the moment it binds? Its constantly twitching (I'm using the Dx4e if that adds any info).

I'm feeling that may be normal as well, as I watched a review video and heard the same noise at about 4:40 and 5:20.

Eflite Blade MCPx v 2 BNF quick review and test flight (9 min 28 sec)

Replying to my own post:
My aforementioned friend with the MSRx flew my mcpx for a few seconds and it seemed to work fine.

Basically all the servos sit there and buzz, and the motor needs a good bit of throttle before it starts spinning, then it kind of snaps into motion, and on the spindown it snaps to a stopped position.

I guess I'll still call horizon to ask about it but it does fly.

My servos buzz and all fly fine. Sounds like you expect this heli to be like others and is a different animal. If your friend got it to fly ???? I don't know could be defective or handled badly.? Blade stuff is turn key for most part. I have six Blade helis/Quad and no issue at all.

I would just call in to the LHS that you got it from and ask for an exchange, if they wont allow call horizon hobby and work it out with them, you may like to stop messing with it more it might get worse to the point they may not allow the exchange, im sorry to hear that you are having problems with it. I just got one recently RTF and its a hell of a fun heli to fly! I hope you get this settled and you do deserve to have a working Brand new kit to fly with, and not trying to fix it. FYI all three servos do make a buzzing noise but you shouldnt have any problems with moving the the servos, the throttle should spin smoothly without any binding or snap sounds.

Originally Posted by dankar04

My servos buzz and all fly fine. Sounds like you expect this heli to be like others and is a different animal. If your friend got it to fly ???? I don't know could be defective or handled badly.? Blade stuff is turn key for most part. I have six Blade helis/Quad and no issue at all.

Thanks again. I just don't have that much experience with different ones and the few others I have seen are significantly different. Having my friend successfully fly it, and your 'mine does the same thing' comments have been quite reassuring.

Originally Posted by jonathan2tran

I would just call in to the LHS that you got it from and ask for an exchange, if they wont allow call horizon hobby and work it out with them, you may like to stop messing with it more it might get worse to the point they may not allow the exchange, im sorry to hear that you are having problems with it. I just got one recently RTF and its a hell of a fun heli to fly! I hope you get this settled and you do deserve to have a working Brand new kit to fly with, and not trying to fix it. FYI all three servos do make a buzzing noise but you shouldnt have any problems with moving the the servos, the throttle should spin smoothly without any binding or snap sounds.

Thanks Jonathan. Being quite new I wasn't sure if I was having a problem or not!
I don't have a problem with the controls.
The motor seems like it must have very strong magnets that hold the shaft in place until energized. It doesn't make a snapping sound, it more like suddenly starts turning. When it spins down it stops turning abruptly enough that it torqued itself over.

Hmm maybe check if the motor pinion is too tight against the maingear which may be causing the teeths binding. if so try to loosen the two screws from the main motor and nitch it over just a teeny bit... Also in events of minor crashes the main gear tends to slip, you can tell this by grabbing the main rotor hub and move it up and down there shouldnt be movement but it cant be completly flush either just very tiny play of movement enough for a paper or two thickness (persay) of movement. if there is in fact slippage just hold the top of the hub with your thumbs and your fingers around the heli fingers against the maingear and squize/snap it back in make sure the main gear grooves fit with the grooves of the main shaft if not pull off the skids (no screws) and pull off the main gear (no screws) realign grooves push back together and your good to go! i hope this helps.

This behavior is normal. Servos make noise constantly, and on startup the blades snap into action suddenly. On landing, the opposite. It stops suddenly, often with enough torque to knock the bird right over.

I too thought it was odd at first, as my Super CP didn't do anything similar. I found two things:

1) It's the strength of the magnets, as you guessed.

2) Batteries make a big difference on how smoothly and abruptly it starts/stops. Better batteries show less of this jumpiness. Especially at the end of flight time.

One thing to avoid is flying to LVC (Low Voltage Cutoff)...it's not good for LiPo batteries and MAY contribute to the abrupt stop situation...
Try to time your flights so you're landing about :30 to 1:00 PRIOR to LVC..
Good Luck!