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HomeAircraftHelicopterHelicopter Main Discussion › Convert older 700 fbl to fb
12-10-2015 05:32 AM  33 months agoPost 21
rcflyerheli

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Granbury, TX USA

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Sorry to hear that. I don't know how the Robird starts it's initial programming, and maybe it is like the 3GX where you do all your mechanical setup in direct mode, but if it is anything like a Vbar, you have to get the transmitter zeroed to the software first, and then do the mechanical part. I've never tried to do a mechanical setup outside my Vbar software first, but I'm pretty sure it won't work that way.

I do understand that different brands do their setups in different ways. Also, different brands do servo reversing in different ways also, some inside the software and some in the TX. So your resetting the Robird set everything back to default.

Edit.

I looked at the youtube vids (at least the first 4 or 5), and at least the initial TX calibration and servo reversing is all done inside the software of the Robird. I would advise you to take a look at thei setup vids (there are 18 of them). It looks like they will get you started.

Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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12-10-2015 06:36 AM  33 months agoPost 22
Ladymagic

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South Korea

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Unfortunately, I am not familiar with Robird units, but most controllers' core programs are basically the same...only the user interface is different. You skipped some steps by just copying one tx profile over to another tx, but by resetting your Robird, you actually did first step in any FBL initial setup. Next, would be to reset your 14SG back to factory as well. From there, you just need to teach your Robird what channels do what and end points in relation to the 14SG...not the 8SG. This will require the Robird setup manual and the 14SG manual as well. You need to teach your unit the new tx's limits so it knows how to respond in relation to your inputs.

Sounds like your controller thinks your are still using the 8SG tx. You probably have something mixing or a reversed channel that didn't translate over the same in the new tx. Simply transferring your program from one tx to a completely different tx does not usually work. That might have worked if you were transferring from one 8sg to another 8sg. But, your 14 channel system has a different channel map than a 8 channel system.

Anytime you change radios, you need set your controller up for that radio specifically....even if it's the same radio model and type but especially if it's different. Aside from the older version CGY750, most initial setups can be done in less than 20 minutes. But, only if you have the setup guide or know the unit.

Good luck! Please let us know how things go.

Mellisa

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12-10-2015 09:57 AM  33 months agoPost 23
mcfast

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Quebec Quebec Canada

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I have a Robird on one of my helis and its not very hard to set-up and I am no pro, I did on two different TX, petty easy to do,
Good luck with yours.

P.S. sorry for the spelling or the grammar I am dyslexic!

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12-10-2015 12:25 PM  33 months agoPost 24
Heli_Splatter

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USA

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As I have noted elsewhere on RunRyder... different radios do not center servos in the same position. You will need to do a complete setup of the FBL unit including possibly mechanically. I have one robird FBL controller and it is really not that hard to setup.

I would not even consider going backwards to a FB machine. You need to read the Robird directions and look for the videos or find someone willing to help you out with a setup.

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12-10-2015 03:33 PM  33 months agoPost 25
jschenck

rrProfessor

La Vista, NE.

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http://manuals.hobbico.com/fut/14sg-manual.pdf

Page 68 - at the top of that menu where it says "SERVO OFF" select that and change it to "SERVO NEUTRAL" and it forces all channels to exactly center. Great way to get a mechanically neutral setup.

From there:
Setup the servo horns to 90º,
Swashplate flat (with a setup tool preferably for me)
Head exactly at 0º.
If you have swash followers or mixer arms (non DFC style head) make sure those are all at 90º too.
Also a good time to setup the tail with 90º servo horn and mechanical setup on the tail slider.

That's 90% of the setup battle.

I have no experience with the Robird but this has worked for me using Futaba CGY-750. With the Align 3GX I also have to put the gyro in DIR mode to turn off the gyro's.

Additional note: With the Robird, make sure you have the correct swashplate style setup. Not sure if it needs H-1 or what, but it's critical to have the correct swashplate style setup in the TX - some gyro's expect the TX to be setup with a 90º mix and some with a 120º mix

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12-10-2015 03:40 PM  33 months agoPost 26
jschenck

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La Vista, NE.

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Side note - my Trex 700 (nitro) has a flybar, I like the old school setup sometimes

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12-10-2015 05:39 PM  33 months agoPost 27
Aaron29

rrProfessor

USA

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Ugh. I owned a 700 FB.

I'm a flybar enthusiast but even I'll admit that the original 700N flybar was one of the poorest tracking and stability models I'd ever flown. And there was no tunabiliy. I went with the F3C head and it tamed things down a lot. The flip rate suffered, though. Still, a heli that wanders this way and that and tracks like it has a flat tire is no fun to fly, and that was the 700 FB.

Tldr; I'd keep it FBL. Work with what you've got. Change the unit before a conversion.

Want a good FB heli - get a Hirobo.

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12-10-2015 11:17 PM  33 months agoPost 28
icanfly

rrElite Veteran

ontario

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how have you managed with the heli cantw8tofly?

pretty much all fbl controllers need initializing first to the transmitter channel. There are specifics of each fbl unit that need to be followed in the initial set up. This includes allowing the gyro to set center points on the servo, but first, you must assign the correct servo type digital or analogue, before hooking up the servos. As you plug them in they should center, then you attach the servo horns and adjust the linkages to get 0 pitch as close as can be.

fbl units are easy when you slow down and examine each recommended step in the manual. When you complete the set up and are ready to hover you have to be careful about the gains, too much of a good thing and in the presence of vibes becomes a terrible thing fast.

fbl units don't fly the heli, they only reduce small instabilities which the eye cannot manage to comprehend fast enough to do something. I think if everyone tried nobar for just one try they'd see the use for external flight control is better than nothing. fbl is no crutch, doesn't automatically fly the heli, will not wash , iron, and press your shirts, you still have to be proficient at basic rc heli flight.

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12-11-2015 12:56 AM  33 months agoPost 29
HeliOCD

rrVeteran

San Diego, CA

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See. Not unusual at all. Put his pc battery in upside down too..

Its all earth!

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12-11-2015 01:57 AM  33 months agoPost 30
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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you can centre servo horns using a spare receiver

Always redo the FBL unit set up when changing transmitter or model it is the only way to be sure.

switching back to flybar is another way out but parts are getting rare

spending time, paying attention

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12-11-2015 12:47 PM  33 months agoPost 31
cantw8tofly

rrNovice

Slidell Louisiana

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Thanks for all the help guys. I just got back into the states from being over seas for some time. When I left the fly barless stuff was just coming on the market and many people were having trouble with getting the hang of it. Now that I am back I see that the days of the flybar are pretty much over.

But any ways I am way behind the curve now and trying to get my head wrapped around this stuff. The brand new radio does not help at all. Some one mentioned learning new radio plus the flybarless controller would be difficult and I agree that its part of my problem.

I have been busy with work and some holiday time stuff the last couple days but its supposed to rain all day Sunday so I plan on spending some time on the trex then. I will post an update if I gain any progress.

Again....thanks for all the info.

You guys are great.

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12-11-2015 05:42 PM  33 months agoPost 32
Aaron29

rrProfessor

USA

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Hey once you iron out the wrinkles and accept the change, FBL is great. There are many good FBL controllers out there. I'm a VBAR guy because it just works.

I still have FB for nostalgia but my FBL birds get flown more. Really, switching is the right thing to do. And if someone is new to the hobby I tell them don't bother with a FB. And that's coming from a FB enthusiast who was reluctant to change. It's just that this is where the tech is, this is where most of the offerings on the market are, it goes better with electric, etc. etc. So many reasons to FBL. So don't sweat it. The worst that happens is you switch controllers.

Good luck and keep us posted.

If you are struggling with manuals and can find local help, that is the best option. Lots of us have walked this annoying path.

Used to be you had to be a mechanic to fly helis. Now you have to be a programmer. Heh.

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HomeAircraftHelicopterHelicopter Main Discussion › Convert older 700 fbl to fb
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