Mar 30, 2012, 08:03 PM
Registered User
3d astronaut's Avatar
Quote:
Originally Posted by PLMS View Post
Thanks for the reply.
I don't have a spare as2000l servo that I know of. I googled the as2000l and it came out looking like the servo already in the mCPX. Is that what you meant ?

I do have a big bag of dead normal micro servos at home, maybe a gear from one of them will fit.

Martin
Yes but I meant to say just the gear. I didnt replace the entire servo, just that plastic gear that I took off of the as2000L. Popped right on and has worked perfectly for 20+ flights so far without any modification.
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Mar 30, 2012, 08:43 PM
cjg
cjg
"Pull up, pull up!"
cjg's Avatar
Quote:
Originally Posted by payne9999 View Post
I can remember when I first got my MSR I thought I wouldn't be able to fly it. Now I have an MCPX. I searched quite a bit and this thread has over 600 pages. I am having trouble finding some basic help.

I have 30 years of RC experience and a year on the mSR and a small amount of time on an SR. To me the SR is irrelevant though because it is a pile of .

So, I started out this afternoon and was able to establish a short hover. Tonight I am having trouble even lifting off. It wants to tip over to the left or right or seems to get stuck wanting to pitch forward or aft as if the trim is confused. The manual says to keep the stick neutral while lifting off but mine seems to need a lot of input while it is getting light.

I tried lifting off the hardwood floor so there is no resistance. I tried to really sneak up on the collective to get it light real slow so I can see if it is trimmed neutral but it is inconstant in which way it wants to drift. The drift isn't small either so it seems to be asking for a lot of correction and then I immediately get into over responding since I am new to CP.

Any ideas?
In the moments immediately following bettery connection be sure you quickly set the mcpx down on a level surface and dont move until the led on the 3 in 1 lights. During this time the gyros are orienting to level. If it is moved during startup it often confuses the gyro causing it to have the trim off when taking off.
Mar 30, 2012, 08:51 PM
Registered User

new guy checking in....


Just checking in... just joined.. been flying since fall.. a friend gave me a cheap co-ax heli and I had a blase.. got a Blade Scout and still have fun.. got a Phoenix Sim... then picked up a used McpX (v1) and have been taking it slow. Waiting on warmer (less windy) weather.

Brock
Mar 30, 2012, 09:28 PM
Registered User
nuttcaze's Avatar
anyone got a BNF mCPX in good shape they wanna trade - https://www.rcgroups.com/forums/show....php?t=1624228
Mar 30, 2012, 09:37 PM
Balsa&Tissue
payne9999's Avatar
Quote:
Originally Posted by cjg View Post
In the moments immediately following bettery connection be sure you quickly set the mcpx down on a level surface and dont move until the led on the 3 in 1 lights. During this time the gyros are orienting to level. If it is moved during startup it often confuses the gyro causing it to have the trim off when taking off.
OK, so flying the Msr for almost a year I should have remembered about letting the gyros calibrate on power up. Thanks for the reminder. That is what was causing some flights to be much easier than others and inconsistency in stability. Wow, I can't believe I forgot about that.

Also, I went outside and it was calm enough and it makes such a difference to have some room. Ok, so it did achieve a fairly sane hover!

Dave
Mar 30, 2012, 09:39 PM
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3d astronaut's Avatar
Quote:
Originally Posted by payne9999 View Post
OK, so flying the Msr for almost a year I should have remembered about letting the gyros calibrate on power up. Thanks for the reminder. That is what was causing some flights to be much easier than others and inconsistency in stability. Wow, I can't believe I forgot about that.

Also, I went outside and it was calm enough and it makes such a difference to have some room. Ok, so it did achieve a fairly sane hover!

Dave
This heli will fly in winds over 10mph. Dont be afraid to take it out even if its a bit windy
Mar 30, 2012, 10:06 PM
Balsa&Tissue
payne9999's Avatar
Quote:
Originally Posted by cloudflying View Post
This heli will fly in winds over 10mph. Dont be afraid to take it out even if its a bit windy
Yep, it was breezy but I have really noticed watching CP pilots that wind is not much of an issue and even though I am struggling the wind didn't seem to be a factor.

The big issue is hard surfaces. I want to get out to a grassy area for sure. I put a little crack in the tail boom because I came down a little hard on the cement.

Is there a better tail boom material for this heli? It is hollow and maybe for balancing it needs to be hollow but it is quite fragile and vulnerable to beginner mistakes.

Dave
Mar 30, 2012, 10:11 PM
I don't want to "Switch Now"
pmackenzie's Avatar
Solid 2mm carbon rod works fine. Much more durable.
You have to sand in a flat spot at each end for alignment and run the tail motor wires on the outside. Either wrap them around of use a few small pieces of heat shrink to hold them in place.

Pat MacKenzie
Mar 30, 2012, 10:11 PM
Registered User
you can use 2mm solid carbon fibre rod and its a good idea to make it a little longer than stock
Mar 31, 2012, 09:42 AM
Registered User
What are the first things to start to wear out in the MCP X? Mine seems to getting a bit more jerky when flying and there seems to be a bit of slop in the blade holders like feathering shaft is not quite tight enough. What do I need look at?
Mar 31, 2012, 09:47 AM
Heli collector
livonia bob's Avatar
Quote:
Originally Posted by winginman View Post
What are the first things to start to wear out in the MCP X? Mine seems to getting a bit more jerky when flying and there seems to be a bit of slop in the blade holders like feathering shaft is not quite tight enough. What do I need look at?
The dampers for sure wear out, make sure your feathering shaft screws are still tight.
Mar 31, 2012, 11:02 AM
Registered User
My mcpx has started flying irratically. It will change direction while in a steady hover without input. I must continually correct to.I believe it is a bad ele. servo. What are your thoughts?
Last edited by J_skaggs; Mar 31, 2012 at 02:29 PM.
Mar 31, 2012, 01:34 PM
UAV Integrations
What are the causes of the high speed death wobble? How to cure it?
Mar 31, 2012, 02:27 PM
Registered User
Quote:
Originally Posted by J_skaggs View Post
My mcpx has started flying irratically. It will move forward and backward with some tail shake when forward elevator is applied while in a steady hover. I must continually correct. I believe it is a bad ele. servo. What are your thoughts?
I can answer my own question. I was pretty sure of my diagnosis so I went to the LHS and purchased an elevator servo. Results, problem fixed.
Mar 31, 2012, 02:31 PM
I don't want to "Switch Now"
pmackenzie's Avatar
Quote:
Originally Posted by philthyy View Post
What are the causes of the high speed death wobble? How to cure it?
Cracked main shaft can do this.
Mine cracked on one side right where the screw goes through for the shaft collar.

Also make sure the main gear has not slipped down.


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