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450 Class Electric Helicopters 450 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 12-04-2011, 07:22 PM   #261 (permalink)
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Old 12-05-2011, 11:56 AM   #262 (permalink)
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I've updated some of the wiring. (Sorry for the quality, I was forced to use my phone cuz my camera was "out of town" for the weekend. I'll update when I get it put back together.)

There is the right side, much easier to work on it when it's off. Like my 'place holder'? =D
There is the left side, still attached, but not difficult to work with since there is only one wire.
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Old 12-06-2011, 08:13 AM   #263 (permalink)
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All this wiring looks awesome! Where does everyone get their wire braid from... Auto parts store?


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Old 12-07-2011, 10:47 PM   #264 (permalink)
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450Pro FBL 3GX












I made up three short servo extensions from the 3GX unit up through the frame. Two of the connections (to the forward servos) are hidden under the unused gyro tray.

Replacing stuffed servos is a breeze as servo wiring comes out with the servos/bearing blocks and I don't have to re route all the way back to receiver. That wiring stays behind.

One of the receivers is inside the frames above 3GX unit with antennas through the frame.

I also have a battery starp - but removed for photo purposes.

Squib
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Old 12-08-2011, 01:17 AM   #265 (permalink)
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Quote:
Originally Posted by mmjl_ View Post
All this wiring looks awesome! Where does everyone get their wire braid from... Auto parts store?
http://www.readyheli.com/search.asp?keyword=braided
You can purchase braid from online heli retailers or you can stop in at a electronics store like I did. My store has it as small as 1/8inch
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Old 12-09-2011, 12:59 AM   #266 (permalink)
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is that a kde tail upgrade set?....
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Old 12-23-2011, 11:50 PM   #267 (permalink)
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Quote:
Originally Posted by expose@F2.8 View Post
http://www.readyheli.com/search.asp?keyword=braided
You can purchase braid from online heli retailers or you can stop in at a electronics store like I did. My store has it as small as 1/8inch
About a year ago the 3rd or 4th page of this thread someone recommended this site:
http://cableorganizer.com/braided-sleeving/
The price will be cheaper on an electronics website than on an RC website though.
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Old 12-27-2011, 12:16 AM   #268 (permalink)
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Heres Mine!
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Old 12-29-2011, 09:37 AM   #269 (permalink)
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Quote:
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Heres Mine!
NICE
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Old 12-31-2011, 06:12 AM   #270 (permalink)
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I got a 450 ProV2 3GX from my lovely wife for Xmas, so this post is inspired by a happy couple days over the holidays putting it together.

Firstly the 3GX is a very neat little piece of kit, which thanks to it's SBus compatibility makes for a very neat electronics package indeed when paired to a Futaba R6203SB rx.




Users of Spektrum satellite receivers will have to connect to the connectors on the side of the unit which makes for a slightly less neat install as the wiring cannot be concealed within the frame. The flexibility of the 3GX in this regard must be applauded.

My goal was to keep all wiring within the frame, the greatest challenge being the AIL/PIT servos. The only viable cabling route was rearwards, and down behind the main gear. The cables initially had to be fed down between the servos thus. With this arrangement the servos can still easily be removed for servicing.



I completed the routing with the right frame removed. The leads were just long enough to reach down to the rear of the 3GX unit.



The ELE servo was rather easier and followed the same path down behind the main gear to the 3GX unit. It's lead was cut to the appropriate length and a new connector crimped on.



Mounting the ESC under the battery tray, an obvious location, was a bit snug to say the least, but it fits as shown below. I kept enough power/servo lead free so I can remove the battery tray to gain access to the motor pinion and AIL/PIT servos.



Having read about the 3GX reset issues, I figured it would be wise to keep the ferrite bead even though many claim it to be unnecessary with 2.4GHz systems. To do this I drilled a couple of holes in the battery tray for a cable tie as shown below.




Moving to the rear I needed to find a way to keep the two aerials perpendicular to each other. On my other helis I've done this by pointing one rearward in a short length of antenna tube, and taping the other to a rear skid leg. I therefore drilled the servo mount and pressed in a short length of tube left over from my 450SEv2 thus. The tail servo cable was also shorted and a new connector crimped on as it's run it very short and direct.




The ESC lead was run down the inside of the right frame as shown below, albeit unattached at this stage.



The frame side was then fitted and appropriate cable ties used to keep the cables in place as shown below.




Then it was just a case of adding the tail, the end result shown below. Note the 2nd aerial taped to the landing skid leg.


And here the tail servo cable tied to the boom support.


The data port is nicely accessible with the canopy on.


And the controls from underneath.


A tidy wiring job, even if I do say so myself! And it flies beautifully!



Steve
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Last edited by Steve Evans; 01-02-2012 at 12:25 AM..
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Old 12-31-2011, 01:39 PM   #271 (permalink)
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Steve,That was a fantasic presentation,put together beautifully.Congrat's. Tom
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Old 12-31-2011, 01:42 PM   #272 (permalink)
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Quote:
Originally Posted by Steve Evans View Post
I got a 450 ProV2 3GX from my lovely wife for Xmas, so this post is inspired by a happy couple days over the holidays putting it together.

Firstly the 3GX is a very neat little piece of kit, which thanks to it's SBus compatibility makes for a very neat electronics package indeed when paired to a Futaba R6203SB rx.




Users of Spektrum satellite receivers will have to connect to the connectors on the side of the unit which makes for a slightly less neat install as the wiring cannot be concealed within the frame. The flexibility of the 3GX in this regard must be applauded.

My goal was to keep all wiring within the frame, the greatest challenge being the AIL/PIT servos. The only viable cabling route was rearwards, and down behind the main gear. The cables initially had to be fed down between the servos thus. With this arrangement the servos can still easily be removed for servicing.



I completed the routing with the right frame removed. The leads were just long enough to reach down to the rear of the 3GX unit.



The ELE servo was rather easier and followed the same path down behind the main gear to the 3GX unit.



Mounting the ESC under the battery tray, an obvious location, was a bit snug to say the least, but it fits as shown below. I kept enough power/servo lead free so I can remove the battery tray to gain access to the motor pinion and AIL/PIT servos.



Having read about the 3GX reset issues, I figured it would be wise to keep the ferrite bead even though many claim it to be unnecessary with 2.4GHz systems. To do this I drilled a couple of holes in the battery tray for a cable tie as shown below.




Moving to the rear I needed to find a way to keep the two aerials perpendicular to each other. On my other helis I've done this by pointing one rearward in a short length of antenna tube, and taping the other to a rear skid leg. I therefore drilled the servo mount and pressed in a short length of tube left over from my 450SEv2 thus.




The ESC lead was run down the inside of the right frame as shown below, albeit unattached at this stage.



The frame side was then fitted and appropriate cable ties used to keep the cables in place as shown below.




Then it was just a case of adding the tail, the end result shown below. Note the 2nd aerial taped to the landing skid leg.


And here the tail servo cable tied to the boom support.


The data port is nicely accessible with the canopy on.


And the controls from underneath.


A tidy wiring job, even if I do say so myself! And it flies beautifully!



Steve
Impressive. Nice work Steve!
Rick
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Old 01-02-2012, 05:01 PM   #273 (permalink)
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Here is my HK 450GT SE I'm really new to Helicopters and flying to but in time I will learn so for now I'm having fun building here is the wiring I did on my clone 450















In the process of converting it to Align
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Last edited by whitie63; 01-02-2012 at 07:30 PM..
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Old 01-02-2012, 05:33 PM   #274 (permalink)
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If you turn the motor 180deg you'll be able to run its power wires inside the frame.

Be careful attaching things like servo extensions to the gyro. Depending on how immune the gyro is to vibration (or not!) it may have a detrimental effect. That said the Align GP750 and GP780 gyros have sockets on them for the tail servo. Making the tail pluggable like that is a neat idea, but every extra connection is another point of failure and that one is very prone to getting accidentally pulled.

Steve
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Old 01-02-2012, 07:26 PM   #275 (permalink)
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Quote:
Originally Posted by Steve Evans View Post
If you turn the motor 180deg you'll be able to run its power wires inside the frame.

Be careful attaching things like servo extensions to the gyro. Depending on how immune the gyro is to vibration (or not!) it may have a detrimental effect. That said the Align GP750 and GP780 gyros have sockets on them for the tail servo. Making the tail pluggable like that is a neat idea, but every extra connection is another point of failure and that one is very prone to getting accidentally pulled.

Steve

That's not a servo extension it is the Gyro plug and I shortened all my wires to fit this bird the Gyro plug is just long enough to reach around and be double sided to that spot.
The tail servo wire was shortened to just reach.
All the ESC ,Gyro and servo wires have been shortened to just long enough to slide the receiver out through the middle of the frame for servicing.

And the motor wires running on the out side makes it easier to unplug the motor for safety..

Steve thanks for your input

Chris..
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Old 01-02-2012, 08:23 PM   #276 (permalink)
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Trimming wires to length is certainly the way to go! I'd still be tempted to make that gyro/servo connection somewhere on the frame so you can cable-tie the servo lead to prevent it getting tugged.

Safety is cool too. I tend to go for neatness and then worry about skinning my fingers reaching the concealed wires later!!!

Steve
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Old 01-02-2012, 08:49 PM   #277 (permalink)
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Just finished my new Sport V2. Pretty easy to make clean wiring, everything is layed out real well and there are strategic tie wrap spots on the frame to route through the inside without shaft/gear interference. This is my 4th build, first 2 are pretty messy, 3rd (250 clone) is pretty nice, and this one I'm pretty proud of as well. This is my first non-clone Trex build and I'm pretty impressed so far.

Dan
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Old 01-08-2012, 10:33 PM   #278 (permalink)
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Quote:
Originally Posted by Steve Evans View Post
If you turn the motor 180deg you'll be able to run its power wires inside the frame.

Be careful attaching things like servo extensions to the gyro. Depending on how immune the gyro is to vibration (or not!) it may have a detrimental effect. That said the Align GP750 and GP780 gyros have sockets on them for the tail servo. Making the tail pluggable like that is a neat idea, but every extra connection is another point of failure and that one is very prone to getting accidentally pulled.

Steve
Steve.....

I am building my first Heli (TREX 450 3GX) and I am going to use your bird for inspiration. I will post pics when I am done, but you will see a lot of your ideas in it. I hope you don't take offense....there is a saying about imitation being the sincerest form of flattery
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Old 01-23-2012, 07:12 PM   #279 (permalink)
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Don't know if this will help but here is some pics of my EXI 450pro.
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Old 01-23-2012, 09:00 PM   #280 (permalink)
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I tried to put my wires in locations so I could replace parts easy. As you can see I strengthened my tail servo mount and mounted my battery straps to the lower frame. I didn't want to cover my heat sink on my ESC. You cant see it but I borrowed a small heat sink from a PC video card, gently cut the cover open on the front of my ESC applied thermal grease and glued on the heat sink.

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