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T-REX 250 › servos installed on the other side. YES/.NO
12-26-2008 12:32 AM  8 years agoPost 1
knightofcarnage

rrElite Veteran

chicago

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Am I the only one who revesed the servo instalation? I put the elevator and the bottom cyclic server on the right side. And the top cyclic on the left. And here are my resons why.

1) The main grear spins clock wise. so i you get your server arm stuck in the gear on the right side it will just skip out, on the left it will get draged into the main gear and do more damage.
2) There will be a balance of 2 servos on the right and left
(right bottom cyclic + elevator) (left top cyclic and tail servo)

Am I wrong to do this?

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12-26-2008 12:37 AM  8 years agoPost 2
leslie

rrKey Veteran

Hollis, NH - USA

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Hi all,

I did the same thing with no issues. I doubt the servo horn will actually reach the main gear like it might on the 450. I prefer to set my birds up pretty much the same so the 250 goes the way of my 450's.

Cheers,
leslie

Protecting those who protect us

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12-26-2008 12:59 AM  8 years agoPost 3
blade slayer

rrApprentice

Maryland

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that is the way i installed my servos 2 on one side and two on the other and it works just fine

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12-26-2008 06:21 AM  8 years agoPost 4
knightofcarnage

rrElite Veteran

chicago

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Tx Guys

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01-06-2009 05:45 AM  8 years agoPost 5
HeliMan Dave

rrVeteran

Suburban Chicago

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knightofcarnage, leslie and blade slayer,

I did the exact same thing with the servos (after reading your posts and agreeing on why).

My question is... do I have to account for the different positions when I set up the gyro & radio etc.? This is my first Trex (and the first time I'm swaying from the manufacturers manual). If the answer is YES then what do I have to do?

Thanks.

Dave D.

ps, knightofcarnage, if you fly at the dome in bensenville then I have probably met you face-to-face.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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01-06-2009 02:32 PM  8 years agoPost 6
leslie

rrKey Veteran

Hollis, NH - USA

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Hi Heliman,

No you just have to make sure your swash moves in the right direction with your radio inputs. Check out the build videos on the other forum, I use the trex450 videos for just about every heli.

[url=http://www.helifreak.com/showthread.php?t=11373]

Protecting those who protect us

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01-07-2009 07:28 PM  8 years agoPost 7
HeliMan Dave

rrVeteran

Suburban Chicago

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Thanks leslie!

I just received my gyro and tail servo so I can now continue the build.

Dave D.

ps, your tagline suggests that maybe you're a 911 dispatcher? Just guessing.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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01-07-2009 09:24 PM  8 years agoPost 8
leslie

rrKey Veteran

Hollis, NH - USA

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Hi Dave,

Actually I work for a defense contractor, I specialize in countermeasures. I keep folks from getting hit by missiles, hence the tag line. I'm working on the F-35 Joint Strike Fighter currently.

Cheers,
Leslie

Protecting those who protect us

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01-08-2009 02:56 AM  8 years agoPost 9
Gyronut

rrProfessor

Martinsville In.

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Nothing like compromising your security clearance..

Rick

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01-08-2009 06:47 AM  8 years agoPost 10
HeliMan Dave

rrVeteran

Suburban Chicago

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That's pretty cool leslie.

I'll bet you see technology that we only dream of.

To get back on topic, I was installing my Spartan ds760 gyro and JR DS290G tail servo when I found out that the stock T250 tail servo ball is too small for the JR servo arm. The Align servo arms don't fit the JR servo so I thought I was stuck.

Turns out (so I was told) that the hole should only be 5-7mm out on the tail servo arm (not 13-17mm like the Spartan instructions say).

I just drilled my own at about 5.5mm and it seems I get full travel with the stick so I should be good.

Hopefully I'll have it ready for it's maiden by Fri.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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01-08-2009 12:15 PM  8 years agoPost 11
leslie

rrKey Veteran

Hollis, NH - USA

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Hi Dave,

No problem on drilling your own holes on the servo arm or wheel. I do that on nearly all my birds. The dang stock holes are never where I want them.

Yes, the job is adult day care and Gyronut there is no compromise on what I do, just how. hehe, then I'd have to kill you.

cheers,
Leslie

Protecting those who protect us

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01-13-2009 01:53 AM  8 years agoPost 12
HeliMan Dave

rrVeteran

Suburban Chicago

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Maidened the T-Rex 250 today in the gym and it flew GREAT!

I put weights on the flybar just to tame down the cyclic but I will try it without them next time out.

It is a little more "sensitive" than my Mini-Titan but I LOVE IT!!! It's also a much better size for flying indoors in a gym or golf dome. I think the "sensitivity" will actually help increase my flight skills too.

That Spartan gyro ROCKS!!! I can tell a big difference between it and a 401. The tail is LOCKED!

It will be VERY interesting to see how it compares to the upcoming Futaba 520 gyro.

Thanks again for the help.

-Dave

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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T-REX 250 › servos installed on the other side. YES/.NO
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