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Other › Dragonus II Elite Standard Build Thread
11-20-2006 03:09 PM  11 years agoPost 21
HeliDuce

rrApprentice

Nashville, TN

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Dragnous II Build
Shell your doing a great job of documenting the build, I too noticed the pin and was concerned that it might come out. I'll be taking my head apart now and using some green loctite on the anti rotation pin. There is a place for a second pin, I may just cut a piece of music wire and put one in the other side, much like the Trex SE head uses. Good luck on your build, your gonna love the way this thing flies!

Gary Morris

Trex 600,Gazaur Mars 480, Trex SE V2, ESky 550 ESmart, Eco 8 Royal, Dragnous II, Falcon 3D, SE,

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11-21-2006 02:09 AM  11 years agoPost 22
ShellDude

rrElite Veteran

East Coventry, PA

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Thanks Gary... it's been a fun build... taking a break from it tonight though. By all reports it sounds like this kit will do a lot to help the 450 market.

I'll keep from calling it the T-Rex Killer until after I've had a chance to fly it. I have no loyality to Align / AssuranceRC and welcome the competition

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-21-2006 02:34 AM  11 years agoPost 23
AdrianM

rrApprentice

Tampa,FL

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I like that fact that you can alter the bell-hiller ratios on the Dragonus. On the Trex you have to fool with paddles and longer flybars to get faster cyclic. Iam curious to see how the diffrent settings affect this heli.

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11-22-2006 05:18 AM  11 years agoPost 24
ShellDude

rrElite Veteran

East Coventry, PA

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I saw that... some pretty neat stuff... I found an illustration of the different configs you can use.

They then have this table:

3D Flying (Advanced) A2 + B2 + C2
(highest pitch changes and faster cyclic reponses)
F3C Flying A2 + B2 + C1
(Milder pitch reponses)
Normal Hovering (Beginners) A1 + B1 + C1
(smallers pitch changes and save servo energy)

What is odd is that by following the instruction manual I ended up going A1 + B2 + C2 ... not sure where that fits into the above profile, even though it's the setup in the picture -- possibly a typo for the "Advanced" classification.

Sorry about missing another night of building. Didn't get home till pretty late tonight... and it's our (the wife and I) 5th anniversary today.

Will pick up with the frame assembly tomorrow tonight on account of having Thursday off... pretty sure I'll be able to get through most, if not all, of the frame assembly by end of day Thursday which leaves me for electronics mounting over the weekend and maiden the following weekend, assuming reasonable weather here.

Shell

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-23-2006 02:40 AM  11 years agoPost 25
ShellDude

rrElite Veteran

East Coventry, PA

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Finished Step 7 (F-A)
Step 7 is where we get to see the frame start coming together. It took me all of 15 minutes to go through this step, which is becoming a trend for this kit.

Nothing to report here... all very simple. The Lower Frame assembly is complete.

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-23-2006 04:06 AM  11 years agoPost 26
ShellDude

rrElite Veteran

East Coventry, PA

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Finished Step 8 (F-B)
Step 8 consists of assembling the two upper frame sides. Lotsa stuff to do in this step. I should've mentioned it previously, but what I've been doing with the frame build is getting everything put together to one side of the frame, then just putting the other side frame board on.

Some things to note about Step 8:
  • All the short screws (M2X4) are used where nuts are required
  • All the long screws (M2X5) are used where nuts are not required, such as the bearing blocks and boom mounts
  • Attach the canopy mounts prior to bringing the two frame sides together. I waited until afterwards and it took a little bit of finesse to get them properly tightened

That's it for Step 8... I really enjoyed this step. Next I'll be joining the upper and lower frame sections.

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-23-2006 04:44 AM  11 years agoPost 27
ShellDude

rrElite Veteran

East Coventry, PA

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Finished Step 9 (F-C)
Step 9 concludes the frame assembly section of the build. Nothing really to add here. The two frame halves came together very easily in about 20 minutes time.


Next is the main gear assembly and then on to mounting the boom and landing gear which will conclude the non electronics portion of the build.

A bit ahead of schedule... I see a maiden in my near future

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-23-2006 05:04 AM  11 years agoPost 28
ShellDude

rrElite Veteran

East Coventry, PA

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Finished Step 10 (G-A)
Assembly of the gear... took all of 5 minutes... Actually, I think it took me longer to take the pictures and get them uploaded to RR than it did to actually do the work required for step 10.

The one way bearing came pre-installed at the factory.


Next I'll be installing the boom and Landing Gear and will probably call it a night after posting the "money shot"

Shell

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-23-2006 06:38 AM  11 years agoPost 29
ShellDude

rrElite Veteran

East Coventry, PA

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Finished Step 11 (A-A)
Step 11 consisted of a bunch of stuff, but all very straightforward and problem free.

In this step you:
  • Install the Landing Gear
  • Install the Boom
  • Install the main gear and align the tail belt on the upper black pulley
  • Install the head and main shaft and secure them to the bearing blocks and tail pulley
  • Install the horizontal fin & boom supports
This concludes the mechanical portion of this build.


Saying that I'm impressed with the overall quality of the parts, the straight-forward nature of the instructions, and finished product is a severe understatement.

I can't wait to get my electronics installed and then get my Dragonus II Elite in the air. RCer International have delivered on a solid machine. My thanks to Scott over at http://www.rc-tek.com for giving me the opportunity to pilot this new kit.

I'll be following up over the next few days with the electronics installation and providing a first flight report probably no later than Saturday or Sunday of this weekend.

Shell

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-23-2006 06:42 AM  11 years agoPost 30
ShellDude

rrElite Veteran

East Coventry, PA

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Tools used in the assembly of this kit
  • ultra-fine tooth phillips head screwdriver
  • fine tooth phillips head screwdriver
  • medium tooth phillips head screwdriver
  • Needle Nose Plyers
  • Flat Surface Plyers
  • 1.5 mm Hex Driver
  • Hobby Knife
  • Green Loctite
  • Blue Loctite
  • Thin CA glue
  • Tri-flow (PTFE) Lubricating Oil

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-23-2006 08:29 PM  11 years agoPost 31
digger123

rrApprentice

suffolk .uk

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i ordered the elite plus kit form rc expert cant wait for it to arrive very good price looks ace

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11-23-2006 09:45 PM  11 years agoPost 32
bigbadflyer

rrVeteran

Middle Earth New Zealand

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Just finished building my Dragonus Elite last night as well. Just the electronics to go in. I have never built anything electric before so I keenly await you tips the all of this. I'm flying blind at the moment!!!

Apart from me having fat fingers and all the parts are small I thoroughly enjoyed building it. The parts quality are outstanding. Thanks for the build tips shelldude. I've picked up on a couple off things that I am going to go back and recheck.

I do have a couple of things to ask.

1. My plastic collar on the anti-rotation arm on the swashplate seems really tight in the guide at the front. Is yours like this to??

2. When you were building your flybar mixers, did you use anything special to line them up. There was no grooves or anything on the flybar itself so I just guessed. They look even but I cant really tell.

3. Does the tail boom go in a special way?? There is a hole at the end by the tail and a groove at the other end but they dont seem to attach or line up with anything. You have to guess if the tail blades and fin are perfectly lined up with the rest of the heli. Seemed a bit strange to me.

Thanks a bunch

Cheye.

New Zealand Helicopter Sheep Hearding Champion :-)

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11-23-2006 10:04 PM  11 years agoPost 33
digger123

rrApprentice

suffolk .uk

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great build thread but theres not alot been said about how this thing flys compares to the rex etc anyone had any time flying yet.also the kit comes with 3 Motor Pinion:13t.14t.15t which one is best for 3d

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11-24-2006 01:30 AM  11 years agoPost 34
ShellDude

rrElite Veteran

East Coventry, PA

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I had a hard time getting my plastic collar into the anti-rotation bar eyelit, but once I did get it in, it fit fine.

In regards to the flybar mixers I just leveled them by sight. As with my old T-Rex build I figured if I was off a smidge I could dial it out with a twist of a ball link. You should also have a good idea of how aligned they are when you install your flybar paddles. If you can't get the paddles to line up with each other when their lined up with the arms, then it's a good idea to redo the alignment of the mixer arms.

I thought the exact same thing about the boom when I was doing the tail assembly so I tried to keep the hole on the end of the boom as close to a 90 degree angle from vertical as possible, but when I got to the frame portion of the build I noticed that there wasn't any guide holes in the boom mounts and just made sure my tail was centered.

I know what you mean about all the little screws and nuts. I'm about halfway through the electronics mounting now and it too requires a bit coordination. My needlenose pliers help a bit but I bet hemostats would work much better.

As far as flying the Dragonus goes there are a handful of reports to be found. I read that the plastic Dragonus II Intruder (SE) flies better than a T-Rex 450SE. Weather permitting I'll be able to do a first hand comparison between the Elite and a fully blinged T-Rex 450 HDE this weekend.

I decided to use a 13T pinion with my 3500Kv motor. I'm hoping for a moderate HS of about 2,500-2,600.

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-24-2006 04:03 AM  11 years agoPost 35
ozace

rrKey Veteran

melbourne, australia

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Looking forward to your finish and flying.
I have the intruder and it is a killer. At a price that cannot be overlooked it is a very impressive machine. The flying is as good as any of my 3 trexi and it cost me 1/4 the price. If the blingy versions fly better then it should be game over.

we can never have too many, can we ?

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11-24-2006 04:59 AM  11 years agoPost 36
Scott_RC-TEK

rrNovice

USA + Germany

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Shell,
You may want to bring that 13T down to a 11T or 12T for the 3500KV motor...

Awaiting your results.

Regards,
Scott

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11-24-2006 05:24 AM  11 years agoPost 37
ShellDude

rrElite Veteran

East Coventry, PA

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She's Ready!
My calculations tell me the 13T should work fine... assuming I don't overtax the motor. I have an Eagletree flight recorder that I will be using with my initial flights. If I find the motor is overheating I'll see what I can do about dropping the pinion size. FWIW, I run a Himax 2815-3000 (3000Kv) motor on my T-Rex and it maintains a 2,400 RPM HS with a 13T.

Finished up the motor and ESC mounting tonight. Went fairly smooth. I ended up stripping one of the included motor mount screws but had a set on standby so no biggy. I suspect Scott threw these in with the motor and am willing to bet it won't be a problem with the production models.


I also finished my servo mounting and wire routing. For the time being I'll be running an GY240 with an HS-56HB tail servo. I really wanted to get my CSM 420e with the ATX 94761Z digi servo in there but it meant abandoning the stock linkage rod without dremeling the frame a bit to get it to fit. I will be revisiting this at some point because I prefer a full digi tail.


Weather permitting, I shall be airborne this weekend

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-24-2006 09:08 AM  11 years agoPost 38
Buzzsaw46

rrVeteran

Spring Valley, MN.

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Nice build Shelldude!! Eagerly awaiting a flight report.

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11-24-2006 11:40 PM  11 years agoPost 39
ShellDude

rrElite Veteran

East Coventry, PA

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Thanks Buzzsaw... everything is a go for my first flight tomorrow. If the weather is anything like what it was here today, the conditions will be perfect.

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-25-2006 08:22 AM  11 years agoPost 40
Buzzsaw46

rrVeteran

Spring Valley, MN.

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weather looks good here also tomarrow, I hope their aren't to many honey do's planed for the day

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