Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > Multi Rotor Support > DJI Multirotor Support > Flamewheel Multirotor Support


Flamewheel Multirotor Support Flamewheel Multirotor Support


Reply
 
LinkBack Thread Tools Display Modes
Old 07-08-2012, 10:42 PM   #1 (permalink)
Registered Users
 

Join Date: Apr 2011
Default DJI 450 dirft motor issue ?

I've set up my DJI F450 with stock electronics, Naza and followed all the popular advice out there. My heli has a constant and quite significant roll to the bottom left direction. That's as if M3 (bottom left motor) is spinning faster than M1 (top right motor).

So I went ahead and replaced M1 with M3 and kept the ESCs in original position. Now I get the same roll to the top right direction. Based on my experiment can this issue be any other than a faulty motor?

And I'm assuming the motor that is spinning slower is the faulty motor. I should be able to easily confirm that by using that faulty motor in place of M2 or M4.
kako-shirazi is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 07-08-2012, 11:53 PM   #2 (permalink)
Registered Users
 
Posts: 1,310
 

Join Date: Jan 2010
Default

Have you tried a drop or two of light bearing oil on the upper and lower bearings of each motor?
__________________
MQX Quad,Align 550E/NazaH/GPS,Align450 Pro/CPII, Flame Wheel F450 Quad NazaM/GPS/GoPro3, Blade 350 QX/ GoPro3
Never lend money. It causes amnesia.
Stumblebee is offline        Reply With Quote Quick reply to this message
Old 07-09-2012, 12:07 AM   #3 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: Apr 2011
Default

Yea I've tried that, no luck. One thing I just noticed is that when I spin each mother by hand, one of them feels noticeably smoother than the other ones. You feel a lot less resistance against the magnet. The unexpected roll I get is in the direction exactly opposite to this super smooth motor.
kako-shirazi is offline        Reply With Quote Quick reply to this message
Old 07-09-2012, 07:51 PM   #4 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: Apr 2011
Default

Drops of scorpion motor oil on the bearings didn't solve the issue. I had to actually disassemble the motor and use the Precision RC greaser tool to push marine grease through both the bearings. It can pretty much hover hands off now...
kako-shirazi is offline        Reply With Quote Quick reply to this message
Old 07-10-2012, 12:22 AM   #5 (permalink)
Registered Users
 
Posts: 1,277
 
My HF Map location
Join Date: Nov 2009
Default

Man you guys have a lot of patience and time. I think that the motor is bad, call your dealer and send it back. Just my $.02.
__________________
AMA #844172 DJI S1000 Lightbridge Zen for 5D, S900 LB Zen for BMPCC, DJI Phantom 2 Vision +, P2Z2 with Data Link, P2Z3 with LB DJI Forum Support
Tahoe Ed is offline        Reply With Quote Quick reply to this message
Old 07-11-2012, 09:59 AM   #6 (permalink)
Registered Users
 
Posts: 1,310
 

Join Date: Jan 2010
Default

I guess patience and time go with the hobby. There is an intrinsic satisfaction that comes from having a problem, digging deep into it and discovering a solution. That learning process can't be duplicated. Flipping things back to the dealer is okay but there is always the "dead time" wait involved until the product comes back to you with no real guarentee that the problem is actually solved. I like to use my time flying and learning with emphasis on the flying.

Quote:
Originally Posted by Tahoe Ed View Post
Man you guys have a lot of patience and time.
__________________
MQX Quad,Align 550E/NazaH/GPS,Align450 Pro/CPII, Flame Wheel F450 Quad NazaM/GPS/GoPro3, Blade 350 QX/ GoPro3
Never lend money. It causes amnesia.
Stumblebee is offline        Reply With Quote Quick reply to this message
Old 07-11-2012, 10:04 AM   #7 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: Apr 2011
Default

So far it is going strong with sports flying. Also It hovers for like 15 secs hands off till I have to give a slight correction for horizontal drift.
kako-shirazi is offline        Reply With Quote Quick reply to this message
Old 07-11-2012, 03:47 PM   #8 (permalink)
Registered Users
 

Join Date: Nov 2008
Default

Without Gps it will drift, only keeps altitude without.
__________________
Trex 700/600/500/450EPro,Ikon,Spirit, BeastX,180cfx, Taranis, Futaba 18SZ, Tricopters,Qav 500.
panzlflyer is offline        Reply With Quote Quick reply to this message
Old 07-19-2017, 11:24 PM   #9 (permalink)
Registered Users
 

Join Date: Jul 2017
Default

have you tried letting it sit for a couple minutes while the gps gathers all the satalites required for rock solid hover,?

also try foam mounting the controler and balancing the props, vibrations might throw off the hovering stability

I did see a guy at the park flying a phantom , in gps mode and it was like rock solid, i was impressed
ozwaldo 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.
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


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 © Website Acquisitions Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1