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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsBeastX › step G AR7200BX problem
05-11-2013 08:25 PM  6 years ago
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basmntdweller

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Indianapolis IN

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step G AR7200BX problem
This is actually a reset after a crash that stripped aileron and pitch servos. I was going through step G setting the servo center on the swash. When the led is off, the aileron servo is in one position but when I cycle through the different servos it jumps to a new position when on the aileron/red led. I set it square there but then when I go to the no led position it moves off square again. I'm thinking it should maintain the square position that I set.
is this right?
Everything else is set and ready to fly.

Thanks, Matt

Stupid people have no idea how stupid they are!!!
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05-11-2013 11:01 PM  6 years ago
AWittleWabbit

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O.C., CA

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Is your collective on the x'mitter at zero pitch?Heli-itis sufferer.
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05-12-2013 12:45 AM  6 years ago
basmntdweller

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Indianapolis IN

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Don't know for sure but sticks have no effect when led is out. I can try it again with collective zeroed out.

Matt

Stupid people have no idea how stupid they are!!!
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05-12-2013 12:59 AM  6 years ago
AWittleWabbit

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Its been a while but I remember having the collective at zero pitch during set up somewhere. That's the only reason I can think why the servo would move off center. Worth a shotHeli-itis sufferer.
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05-12-2013 02:48 AM  6 years ago
PilotPin

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Indiana -- USA

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Also make sure your pitch curve during setup is linear.
No trims or subtrims set and no mixing funtions are set.
All servo travels should be 100%.
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05-12-2013 03:52 AM  6 years ago
helitroll

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Southlake, TX

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Beast x
What you describe at step G is normal. Collective position does not matter. Center each arm with elevator with led on and move on.
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05-12-2013 04:30 AM  6 years ago
Funky Trex

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Westerville, OH - USA

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Yep, its normal. When the led turns off on step G, that is the center position of all of your servos before trimming them with the beastx. With the led on for adjusting any of your servo's center point, this will show how the swash is centered for flight (with the Beastx's programmed sub trim).
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05-12-2013 05:19 AM  6 years ago
S76 Mech

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Hatboro, Pa.

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Quick note. Make sure you save your trimmed servos by exiting to step H while you still have an LED light ON in step G. If you exit step G with no LED then you will not save your trimmed servos.
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05-12-2013 01:49 PM  6 years ago
fla heli boy

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cape coral, florida

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I just bought one, sat down and read the manual and walked away feeling like a drooling idiot...
It's my first attempt at setting up a FBL controller (other than my crap Blades that come out of a box ready to go).
This oughta be fun.
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05-12-2013 03:22 PM  6 years ago
RCHSF

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NC

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Ron Lund has setup videos on youtube also. Along with another guy called "nexgenRC BeastX Setup"

And A Main Hobbies' RCTalk: How to Setup BeastX Flybarless Gyro System, Part 1, 2,3 on youtube but it want let me post it.
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05-12-2013 03:45 PM  6 years ago
fla heli boy

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cape coral, florida

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awesome....thanks!!
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05-12-2013 04:14 PM  6 years ago
PilotPin

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Indiana -- USA

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fla heli boy
I felt the same way the first time I set mine up. It's really not that bad to do after you have been through it a couple of times. Do a couple of dry runs then double check every thing and you will be OK.
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05-12-2013 04:17 PM  6 years ago
rcmiket

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El Paso,Texas

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Same here I was lost during my first set up. It's really simple once you stop over analyzing it. There's a few good u tube videos out there that will help.

Mike
"When Inverted down is up and up is expensive"
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05-12-2013 05:18 PM  6 years ago
fla heli boy

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cape coral, florida

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overanalyze??? Moi???
I tend to do that, plus I'm a bit of a perfectionist on my R/C stuff. I wouldn't be caught dead unloading some of the crap I see coming out of peoples vehicles at the field.....
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05-15-2013 08:36 PM  6 years ago
dialarotor

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Traverse City, Michigan

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AR7200BX with nitro 90?
I have an AR7200BX on a 700E, but want to know will it be
robust enough to use in a higher vibration environment of a
90 nitro?
RapRexSynLogo Pilot
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05-15-2013 08:43 PM  6 years ago
fla heli boy

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cape coral, florida

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your 90 should be like butter.
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05-15-2013 08:47 PM  6 years ago
dialarotor

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Traverse City, Michigan

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Hey butterboy
Before or after the AR7200BX. I do my best but 90's still have vibes that electrics don't.

Too late, bought 2 units.
RapRexSynLogo Pilot
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05-23-2013 11:15 AM  6 years ago
Richardmid1

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Leeds, England

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Quick note. Make sure you save your trimmed servos by exiting to step H while you still have an LED light ON in step G. If you exit step G with no LED then you will not save your trimmed servos.
Correct. This is a mistake alot of people make when setting up the Beastx, I did too.

As soon as you enter G, your servos will go to reference position, this is the exact center position for your cyclic servos and it is here where you try and get servo arms as close as possible to 90 degrees (or whatever angle they need to be at depending on the model). Moving the rudder stick from there will select the first servo to be 'sub trimmed' (you will see it twitch to let you know which one is selected), now you can use your elevator stick to fine tune the servo position. Each move of the rudder stick will select the next servo to be trimmed. Once you have trimmed all 3 servos you can then level the swash and get 0 pitch on your blades. If you move the rudder stick after you have trimmed the 3rd and final servo it will go back to reference position (don't worry the beastx has remembered the trim you put in for each servo), DON'T exit at this point, flick the rudder again to select one of the servos to be trimmed NOW press the button to exit to the next menu.

Once you have done it a couple of times it is soooo easy! I could just kiss whoever designed it!
60% of the time, it works every time!
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10-16-2014 06:17 PM  5 years ago
truckermusic

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Riverview, Florida

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Richard
Great explaination here.
I too had the same issue the first few times I set up by AR7200bx.
It drove me crazy becuase I like to be as meticulous as I can be during my set ups. A quality set up reaps benifits when flying.

Now I just need to hone in on getting the center of travel of the swash plate.....meaning equal amount of positive as well as Negative travel....I just kind of use my micrometer to measure the links to as close to the manuel as I can and go from there.

I have not quite figured out how to do that just yet. I am always a bit lopsidded when doing this...

any way...I love my AR7200bx

Clifford
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10-16-2014 06:47 PM  5 years ago
Richardmid1

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Leeds, England

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Actually I went and retested this and even exiting menu G in reference position the trimmed servo positions are still used in flight.

As far as getting your blades to 0 pitch and equal +/- travel you can swing both blades round as if folding them away and let them hang down with the heli on its side, you will be at 0 pitch when the tips line up with each other. Now use a digital pitch guage to get equal pitch +/-.
60% of the time, it works every time!
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