Tail Motor Overheating - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Blade Helicopters (eFlite) > mCP X


mCP X Blade Micro CPx Helicopters Information and Help


Reply
 
LinkBack Thread Tools Display Modes
Old 05-03-2012, 08:11 AM   #1 (permalink)
Registered Users
 
Posts: 68
 

Join Date: Jan 2012
Location: Rochester, NY
Default Tail Motor Overheating

I had the Mcpx out yesterday and all was well until about 4 min into the flight I was hovering when the heli went into a full on, no tail rotor, death spin...

I picked it up, brushed it off, and spooled up in my hand to check out the tail motor and everything looked fine; the motor plug was fully inserted, rotor was spinning, no binding, no smoke in the canopy region.

I put it back up in the air and about a minute later it did it again. I was properly baffled at this point until I felt the tail motor which was extremely hot. I let it cool down, double checked to make sure there were no shorts in the wires or anything else visible and it flew for about four minutes until it heated up again and went down.

I have probably between 50-150 flights on this tail motor which doesn't seem to be a whole lot but perhaps its wearing out. Is overheating a normal characteristic of worn-out brushed motors? Should I just replace it and call it a day? Is there anything else that could be causing it to overheat?

I was thinking about replacing it with a mcx2 ccw motor, is that still the best choice? I really don't mind spending the extra 5$ for a stock tail motor if they are any better. Thoughts?

Thanks guys!
__________________
Mcpx - Extended tail boom, Grommet mod

EXI 450 Pro - Spartan Quark, AR7000, Hobbywing Platinum 40A, Turnigy Typhoon
Prof. Penguin is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 05-03-2012, 08:15 AM   #2 (permalink)
Registered Users
 

Join Date: Aug 2010
Location: Canada
Default

Mcx2 ccw motor and a longer boom will do wonders.
HH themselves released a stock long boom version not long ago, I don't remember the part number for it tho. If. You get another complete boom, make it the extended version.
__________________
NanoCPx - Astroid Designs "mild" BL-kit
mCPx "lightweight"-BL - BLHeli 4.0, XP3a dbl-fet/C05m 8T
mCPx "super"-DualBL - BLHeli 4.1, XP7a(3xFET)/HP06v2/8T, XP3a/HP03t,3xSPMSA2030L 2.3g servos
200QX - Bone Stock
Naito is offline        Reply With Quote Quick reply to this message
Old 05-03-2012, 08:18 AM   #3 (permalink)
Registered Users
 
Posts: 798
 

Join Date: Mar 2011
Location: Mi
Default

I'm pretty sure my tail motors dont really get to hot, maybe a little warm. I've always used the stock tail motor on a brushed setup. I use the mcx2 motors on my dual coreless tail setups. I think it is the CCW motor but I'm not really to sure on that.
__________________
MCPX BL(#1 V1 Hp05s/120SR tail, V1 C05m/Dual coreless tail)
Nano cpx stock
Trex 450 Pro, Spektrum Dx6i, Phoenix
tommy217xxx is offline        Reply With Quote Quick reply to this message
Old 05-03-2012, 08:30 AM   #4 (permalink)
Registered Users
 

Join Date: Sep 2006
Location: is everything
Default

I actually took apart my tail motor last night,the brushes are microscopic. I'm surprised how long they do last.
CrashandBurn is offline        Reply With Quote Quick reply to this message
Old 05-03-2012, 09:21 AM   #5 (permalink)
Registered Users
 
Posts: 68
Thread Starter Thread Starter
 

Join Date: Jan 2012
Location: Rochester, NY
Default

Naito: I have an extended solid boom and it does indeed rock. I think a Mcx2 ccw is what I will upgrade to.

CrashandBurn: Would worn brushes cause a motor to overheat?
__________________
Mcpx - Extended tail boom, Grommet mod

EXI 450 Pro - Spartan Quark, AR7000, Hobbywing Platinum 40A, Turnigy Typhoon
Prof. Penguin is offline        Reply With Quote Quick reply to this message
Old 10-26-2013, 01:39 PM   #6 (permalink)
Registered Users
 

Join Date: Oct 2013
Location: Geneva, Switzerland
Default

Quote:
Originally Posted by Prof. Penguin View Post
I had the Mcpx out yesterday and all was well until about 4 min into the flight I was hovering when the heli went into a full on, no tail rotor, death spin...

...

I put it back up in the air and about a minute later it did it again. I was properly baffled at this point until I felt the tail motor which was extremely hot. I let it cool down, double checked to make sure there were no shorts in the wires or anything else visible and it flew for about four minutes until it heated up again and went down.

...
I have the same problem, but with the brushless version of mCPX... Suddenly, in mid-air it started spinning and the tail motor was extremely hot! I think it even melted the plastic case holding it... I have done just ~20 flights and can't understand what's wrong.

I have a spare tail boom. Do you think I should replace it, in case there's some problem with the wires? I kind of broke the tail in its maiden flight and maybe that could have removed the insulation and cause short-circuit? It flew perfectly, however, after the crash for ~20 flights...

Alternatively, could the problem be in the motor itself? Or, worse, in the 3-in-1 unit? I think some chips on the 3-in-1 unit are somehow "deformed"...! Anyone else having/had similar problem?

Thanks
panos80 is offline        Reply With Quote Quick reply to this message
Old 10-26-2013, 09:37 PM   #7 (permalink)
Registered Users
 

Join Date: Jan 2012
Location: Romania, Timisoara
Default

Tail rotor may be too close to motor and rubbing, or deformed after the crash (compare it with the spare one). Or dirt / very little pebbles got into the motor between rotor and windings when you crashed.
danb1974 is offline        Reply With Quote Quick reply to this message
Old 10-26-2013, 10:26 PM   #8 (permalink)
Registered Users
 
Posts: 1,212
 

Join Date: Jan 2012
Location: Ottawa, Canada
Default

I have found that brushed motors that get almost too hot to touch are done and need to be replaced. I think it is time for you to get a new one. I have a mcx ccw motor but have not had to use it yet so can't comment on them, yet.
ronj is offline        Reply With Quote Quick reply to this message
Old 10-26-2013, 11:30 PM   #9 (permalink)
 
My HF Map location
Join Date: Sep 2011
Location: Kansas City, MO
Default

Are these mCX2 CCW Motors as good as people make it seem? I may get one... are they PNP?
BladeScraper is offline        Reply With Quote Quick reply to this message
Old 10-27-2013, 05:50 AM   #10 (permalink)
Registered Users
 
Posts: 1,585
 

Join Date: Aug 2011
Location: Germany
Default

I found that the stock motors are hit and miss in this regard. Some overheated and only last a few flights, some only got warm and lasted much longer. The mcx CCW motors are the exact same motors as stock. Ive since gone with the aftermarket 7mm motors (5$ a piece from Dylan/Astroid) and never looked back. This is on a mild BL conversion.
__________________
2x MCPX I Gaui X1 I 2x Mini Protos I Protos I DX8
dr dremel is offline        Reply With Quote Quick reply to this message
Old 10-27-2013, 11:16 AM   #11 (permalink)
Registered Users
 

Join Date: Oct 2013
Location: Geneva, Switzerland
Default

Thanks for all the information guys!

I'll start by getting a new motor (note that this is brushless, not brushed).

@dr_dremel Can you send me a link of those mCX CCW motors you're talking about, to check them out? Are they brushless? Can I use them in the brushless version of mCPX?
panos80 is offline        Reply With Quote Quick reply to this message
Old 10-27-2013, 04:01 PM   #12 (permalink)
 
My HF Map location
Join Date: Sep 2011
Location: Kansas City, MO
Default

http://www.ebay.com/itm/E-Flite-EFLH...item43c08f89af
BladeScraper is offline        Reply With Quote Quick reply to this message
Old 10-27-2013, 05:08 PM   #13 (permalink)
Registered Users
 

Join Date: Oct 2013
Location: Geneva, Switzerland
Default

Thanks Bladescraper! Are you sure I can use this motor with mCPX BL? It doesn't look like brushless...
panos80 is offline        Reply With Quote Quick reply to this message
Old 10-27-2013, 06:11 PM   #14 (permalink)
Registered Users
 
Posts: 1,585
 

Join Date: Aug 2011
Location: Germany
Default

Wrong forum panos. This is the regular mcpx section, this tail will not work on a BL. You should make a new thread here:

https://www.helifreak.com/forumdisplay.php?f=325
__________________
2x MCPX I Gaui X1 I 2x Mini Protos I Protos I DX8
dr dremel is offline        Reply With Quote Quick reply to this message
Old 10-27-2013, 07:58 PM   #15 (permalink)
 
My HF Map location
Join Date: Sep 2011
Location: Kansas City, MO
Default

You can use them in a brushless mCP X, but not the mCP X BL
BladeScraper is offline        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Insurance
Please select your insurance company (Optional)
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © VerticalScope Inc. All rights reserved.
 

SEO by vBSEO 3.6.1