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HomeAircraftHelicopterHIROBOOther › EVO assembly ?'s
03-30-2005 03:51 PM  13 years agoPost 1
lrogers

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Mobile, Al

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Started the assembly process last and I have several general questions I hope you can help me with.
1. The plastic frames "feel" brittle. How they hold up?

2. Do you guys put your battery pack in the little compartment under the servo frame?

3. I got to step four and the ass'y drawing is a little "busy". I took my time and figured out where all the bolt/screws went. I used medium CA on the screws that went into the plastic. The bolts, I just put in and snugged them up real good to get everything alinged. I plan to take them out one-by-one tonight, put a bit of lock-tight on and tighten them down. Is this a good way to do this?

4. I assume that a little locktight will get on the frames as this is done. Will this hurt or is there a better way to do this.

After just a short time last night I started to get something that least resembled a helicopter!

Larry

Larry Rogers - R/C Helicopter Pilot

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03-30-2005 04:07 PM  13 years agoPost 2
mrNoodles

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Borlänge, Sweden

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1.) I had the old formula plastic frames in my Sceadu, but no problems with those. I guess either will break if you crash.

2.) I had my batterypack in the compartment below, put my RX there when I used a 4000mA Duralite pack.

3.) Sounds like very good and careful way of doing it.

4.) Nothing to worry about.

Dont forget to show us some pics of it once you´re done!

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03-30-2005 04:56 PM  13 years agoPost 3
Jasper7

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Birmingham , UK

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2. I put my battery pack up front and used the caprtment to stow the excess servo wires for a neat layout. Battery up front helps with balance

Steve

Jasper 7
T-Rex 700N
T-Rex 600N
T-Rex 450Pro

Citizen Number: 00212

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03-30-2005 05:55 PM  13 years agoPost 4
Tek

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Yukon, OK USA

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The frames will crack in a crash and even hard landings since they are very stiff.
You seem to be building everything just right , and the Sceadu is straight forward to put together.
My C cell packs would not fit in the compartment, but I would suggest a strong box instead of that compartment for electronics. I had a bad forward crash and it shoved my rec into the coolling fan.

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03-30-2005 06:14 PM  13 years agoPost 5
craneyum

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warwickshire uk

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You could use the NHP frame stiffener which in most cases will save the frames from breaking in a smash. They work very well and I have crash tested them a few times.
Nigel

Learn By Other Peoples Mistakes It Costs Less

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03-30-2005 06:33 PM  13 years agoPost 6
Flyfalcons

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Bonney Lake, WA

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1) Don't crash

2) No, I am using a 1700 Nicad pack and the fit was too tight. I want to wrap foam around the battery anywhere it might contact the frame and that wasn't going to happen in the compartment.

3) Sounds good, if you get the chance replace the nuts with lock nuts and the bolts with hex head. I got my hardware at Ace, about 13 bucks or so.

4) Not a problem

Have fun!

_______________________

Ryan Winslow
X-Spec, EVO 50

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03-30-2005 06:36 PM  13 years agoPost 7
Leif

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USA

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Larry,

Sound like things are moving along for you. Don't worry too much about the frames. The stiff plastic IS more brittle than some other plastic helis, including the original Sceadu, but they also will flex less as a result. If you're worried about crash damage, you can always use a frame stiffener plate between the frames and the landing gear.

I put the RX in the compartment, and the batteries up front. This keeps the wiring pretty clean, and I needed more weight up front anyway for balance.

As long as you're methodical about the assembly, your technique should be fine. I do NOT recommend using CA on the "self-tapping" screws that go into plastic, as these are so hard to thread anyway the use of CA might cause you to actually shear one off; either during assembly or disassembly later. The only place where I ALWAYS use CA is the link-ball screws. Even with these, I managed to shear one off just using a mini-screwdriver and fast CA.

Don't worry about getting a bit of loctite on the frames. The stuff isn't THAT powerful.

Check my gallery for pics of my finished Evo 30 if you like.

Leif

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03-30-2005 06:42 PM  13 years agoPost 8
lrogers

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Mobile, Al

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Thanks for the input fellows. The assembly is actually going a bit easier than I had expected.
Leif,
I've heard so much about the screws and the plastic, that I ran all the screws home BEFORE assembly. That worked out very well.

I'll be joining your guys in the air soon!
Larry

Larry Rogers - R/C Helicopter Pilot

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03-30-2005 07:43 PM  13 years agoPost 9
HawkNoob

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Pa

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If you are not using nylon lock nuts, keep your eyes open for the bolts loosening. You will need to tighten the frame bolts a few times before they seem to set and stay put. Watch the tail bolts! I had a flight when the engine was new and running rich that when I landed, I had the tailbox with only 1 bolt left in it! I have since replaced every nut with a nylon lock nut.

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03-30-2005 08:07 PM  13 years agoPost 10
Tek

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Yukon, OK USA

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Locktite should have prevented that.

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03-30-2005 08:50 PM  13 years agoPost 11
HawkNoob

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Pa

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I did use locktite. Those small nuts that don't have nylon inserts always find a way to get loose.

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03-30-2005 09:14 PM  13 years agoPost 12
Leif

rrElite Veteran

USA

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You need better loctite Hawknoob.

Are you shaking the bottle properly before applying the stuff? Loctite should easily hold these bolts in place.

It's the stupid phillips (pozidriv) heads that drive us nuts and are a reason to convert. Nylocks are nice, but they're not required for most of the frame/tail bolt locations.

Leif

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03-30-2005 10:16 PM  13 years agoPost 13
Tek

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Yukon, OK USA

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I locktite the thread and them dab a bit at the end of the nut after it is finally tightened.

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