START HERE |
|
Register | FAQ | PM | Events | Groups | Blogs | Calendar | Mark Forums Read |
Unregistered
|
mCP X Blade Micro CPx Helicopters Information and Help |
|
LinkBack | Thread Tools | Display Modes |
09-06-2015, 09:58 PM | #1 (permalink) |
Registered Users
Join Date: Apr 2013
|
Erratic behavior
Hi,
I was fairly active on HF, particularly the 450X forum, until I moved and wound up shelving the hobby for about a year. I'm trying to get my helis flying again, small ones first, and remembered that I never found a solution to erratic behavior in one of my two mCP X helis. After sitting in a box for a year, the older and higher time mCP X flies great... almost as "on rails" as a small heli gets minus some odd vibrations that disappear once I get it airborne. I suspect some parts are just getting worn out... gremlins I know well at this point. On the other hand, the newer and lower time mCP X still exhibits erratic behavior... perhaps slightly worse after sitting in a box for a year. Since new (never crashed), it always felt spastic compared to the other heli... even with the same TX configuration, batteries, blades, extra o-rings to reduce vibration, etc. During flight, the collective and cyclic twitch enough to prevent hands-off hovering or even safe flying in a small space. It'll suddenly climb/descend or shift horizontally anywhere from several inches to a foot or more. Looking at the main blades in the right light, I can see them twitch when the movement occurs. To make the situation more interesting, now the tail has joined the cacophony with a slight wag and slow yaw. Prior to moving, I recall cleaning the servo wipers a few times and replacing all of the head components with no improvements. I'm out of ideas beyond replacing the servos and/or 3-in-1 board, but not feeling these are worth the investment in time or money considering better replacement options such as the mCP X BL or Nano. I'm curious if anyone has a quick/affordable fix for this problem as I prefer to get both helis healthy again instead of discovering the gremlins in newer products. |
Sponsored Links | |||
Advertisement |
|
09-07-2015, 02:51 AM | #2 (permalink) |
Registered Users
|
I would recommend swapping the 3-in-1 boards between the helis.
If the erratic behavior follows the board, you have found the problem. A new 3-in-1 can be had from Ebay for $20 these days. If the problem remains with the airframe, put the 3-in-1 boards back in their original helis, and migrate the servos from the good heli to the bad one to see if that's where the problem is. My wife gives me a funny look when she sees me get a second of a particular model, but having a known-good reference is a real sanity saver when troubleshooting.
__________________
If nothing broke, it doesn't count as a crash. |
09-07-2015, 09:33 AM | #3 (permalink) |
Registered Users
Join Date: Apr 2015
Location: Ohio
|
Of course, this assumes we are sane to begin with.
__________________
. . I have to turn the music down while driving so I can see better. |
09-07-2015, 10:53 AM | #4 (permalink) |
Registered Users
Thread Starter
Join Date: Apr 2013
|
Thanks for the suggestions. I figured further testing might involve brain surgery. My excuse for having more than one of the same model... it gives me something to reference while rebuilding after a crash. However, sometimes both have gremlins... maybe I need a third?
|
09-07-2015, 09:06 PM | #5 (permalink) |
Registered Users
Thread Starter
Join Date: Apr 2013
|
I swapped the 3-in-1 and the problem stuck with the chassis. I was sort of hoping for a 3-in-1 problem because they're easier to swap than those tiny servos, but I seem to recall the most tedious or expensive options usually resolve heli problems.
|
Thread Tools | |
Display Modes | |
|
|