HJ 450 build and some mods - RC Groups
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Sep 03, 2013, 05:59 PM
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Build Log

HJ 450 build and some mods

Have now built my HJ 450 quad. Uses XXD 30A ESC`s and XXD 2212 920kv motors. 1045 props. FC is KK2.0 mounted on lower plate. Maiden on default settings went ok.
Last edited by helinor; Jan 29, 2014 at 12:25 PM.
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Sep 20, 2013, 08:28 PM
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HJ450 ready...and it flies

HJ 450 frame
DJI 920KV motors
DJI 10x38 props
Turnigy 3A BEC
KK2.0 FC board running V1.6 sw
Align 600 landing skids
Running on 3S battery
Fly Sky FS-T6 Tx and Fly Sky 6ch Rx. Soon to be Spektrumized...

Next will be to make a mount for my GoPro
Last edited by helinor; Jan 02, 2014 at 08:28 AM. Reason: More pics
Oct 01, 2013, 05:16 PM
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New update for my HJ450 build.
Changed the landing gear for some DJI F450 ones to get the space I need for the GoPro. Using the protection case hard mounted to the bottom plate with a tripod mount for now. Maybe some sort of gimbal next.

Quad flying Treungen (5 min 30 sec)
Last edited by helinor; Nov 08, 2013 at 04:13 PM.
Oct 18, 2013, 04:28 AM
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Update with settings for KK2 and DX6i

Next update:
Modified a lower plate to go on top to get better attachment of the battery when I have my GoPro on.

Here you have my settings with version 1.6 by KK :

Ail/Ele (linked)
P gain 50
P limit 25
I gain 25
I limit 20

P gain 50
P limit 20
I gain 50
I limit 10

Self level
P gain 50
P limit 5
acc trim roll 0
acc trim pitch 0

Stick scaling
Ail/Ele/Rud 50
Throttle 60

Minimum throttle 15
Last edited by helinor; Feb 18, 2014 at 01:47 PM. Reason: Settings
Feb 17, 2014, 08:16 PM
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Here you have my latest mod. I got a very bright LED lamp and put it up front of the quad. I can see it from a very far distance and it helps vith orientation. Here is a link to the LEDs


Just mounted it with a zip tie to test it but will make a better mount for it eventually It is wired to a JST plug soldered to one of the ESC soldering pads.
Last edited by helinor; Feb 18, 2014 at 02:25 PM.
Feb 17, 2014, 10:59 PM
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Nice build! Going to start my own 450 with a camera mount. Thanks for posting, it will help me quite a bit!
Feb 18, 2014, 01:53 AM
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If you look at this post you can se a bit more of how i did it on mine
Mar 30, 2014, 09:16 PM
Registered User
Hi there. I just want to say awesome build you have there. I recently just purchased a HJ450 frame off Amazon and putting together a quad. Using Pixhawk flight controller, NTM Propdrive 28-26 1200KV motors, Afro ESC 30A SimonK. I was wondering if you could post direct links to where you purchased your landing skids and mount/gimbal for your GoPro. I am definitely going for the same look you are and your progress gives me a lot of confidence on how mine will turn out. Also where did you purchase your nylon spaces from? Local hardware store or online? The prices I have seen online seem pretty steep. Again awesome build.
Mar 31, 2014, 03:15 AM
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Thanks for your kind words.

My quad is just going through a rebuild with a new controller. I got myself a Naza M lite (just the controller, no GPS for now) and has just mounted it and done some small changes.
Will have to set it up next.

Wishing you good luck with your build. Please post up some pics of it on the way

The landing gear is genuine DJI parts and were bought from allerc.com. I have swinged the front ones out a bit to get them out of camera view, and to get space for the camera mount. Se pic.
Link is here http://www.allerc.com/dji-fw450-550-...cs-p-8217.html

The camera mount was bought from Banggood.com
Link is here http://www.banggood.com/Walkera-QR-X...8-p-84143.html

I have ordered this mount now to try to get rid of a bit of jello on my videoes. Will report back when i have tried it on

My aluminium spacers for the front and back mounting to make the tabs stiffer I bought of ebay. Not cheap but works ok. I guess you could find them cheaper but remember they have to be 37mm long.
Link is here http://www.ebay.com/itm/Aluminum-M2-...item27e154124b
Nov 04, 2014, 03:09 AM
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Naza GPS mounted...

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