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HelicopterMain Discussion › BeastX as standalone tail gyro?
12-18-2011 02:16 PM  5 years agoPost 1
unclejane

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santa fe, NM, USA

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Hi all,

And to make my BeastX experience even more insulting after it trashed one set of blades and nearly the heli as a 3-axis gyro... I don't seem to be able to make it work as a standalone tail gyro using the tail gyro patch cable at all. It won't seem to initialize - it gets as far as a red status light, and one of the lines of LED's constantly moving back and forth. It won't activate the rudder servo, it's just dead.

I'm using the latest 3.0.8 firmware - anyone gotten this to work?

Goes in the trash (or will be donated or something) if I can't even use it as a tail gyro!

Thanks,
LS

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12-18-2011 02:27 PM  5 years agoPost 2
McKrackin

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Lucasville,Ohio

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I'll take it

There is an adapter sold separately needed to use it as a tail gyro.

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12-18-2011 02:31 PM  5 years agoPost 3
unclejane

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santa fe, NM, USA

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I'll take it
It's yours if I can't get it work
There is an adapter sold separately needed to use it as a tail gyro.
Yeah that's what I'm using (I bought one when I bought the gyro to prepare for just this eventuality that FBL was a failure). It powers up and appears to start trying to initialize, but freezes with a red status light and one line of LED's endlessly going back and forth.

Are older firmware versions available? Could be BeastX never tested this config with the new firmware (wouldn't that be a surprise) and it may still work with an older one? I couldn't find any FW archives on beastx.com...

Thanks,
LS

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12-18-2011 02:35 PM  5 years agoPost 4
McKrackin

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Lucasville,Ohio

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I don't know if it can be retro-graded or not. Sorry.

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12-18-2011 02:44 PM  5 years agoPost 5
red_z06

rrProfessor

Dumont, NJ

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Are older firmware versions available?
Yes
Could be BeastX never tested this config with the new firmware (wouldn't that be a surprise) and it may still work with an older one?
Not possible.

I am not going to rule out that you may have a bad unit. But, it is most likely due to incorrect setting somewhere.

www.JustinJee.com

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12-18-2011 04:36 PM  5 years agoPost 6
Band1086

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Kennewick, Wa. USA

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Agreed, mine worked very well the first time out, but it took me a while to get it set up right as I had never had a BX before, only VB's ,TG's, and a 3G.

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12-18-2011 04:47 PM  5 years agoPost 7
helidevil

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Brunswick, ME

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im using 3.0.8, flys fine. you just have to be patient with it. recheck your settings and that should fix whatevers messed up. (try rebinding first)

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12-18-2011 09:10 PM  5 years agoPost 8
unclejane

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santa fe, NM, USA

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I'm virtually certain the unit isn't defective because it all seemed normal setting it up before.

I posted an inquiry on the beastx forum, I'll report what they tell me....

LS

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12-18-2011 09:14 PM  5 years agoPost 9
unclejane

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santa fe, NM, USA

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No sooner did I post this... Turned out I didn't have it in "Standard reciever" mode. I did a full reset and forgot that that doesn't reset the reciever mode.

Now it's coming up fine and working as a tail gyro. Going out to the field soon as the batts are charged to try it out...

LS

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12-18-2011 09:26 PM  5 years agoPost 10
Heliguychris

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Perth, West Australia

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sorry to hear its not working for ya unclejane.

a couple of things to try...

1 getting the frequencies as high as possible, without heating up your servos.

2 set the cyclic pitch at exactly 6 degrees.

use swashplate leveling in parameter menu to take care of any drift.

3 double check piro optimization direction

4 choose transmitter for control behaviour in parameter menu.

suprised to hear its not going well for you. even vbar guys find something they like with this unit by tweaking dial2

best of luck with it mate.

Licensed (CASA) UAV operator certificate holder 1-YFOF5-01 www.helicamaerial.com.au

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12-19-2011 01:34 AM  5 years agoPost 11
helidevil

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Brunswick, ME

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No sooner did I post this... Turned out I didn't have it in "Standard reciever" mode. I did a full reset and forgot that that doesn't reset the reciever mode.
ahh i knew you would figure it out

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12-19-2011 01:45 AM  5 years agoPost 12
unclejane

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santa fe, NM, USA

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Actually just got back from the field after trying it as a tail gyro. It's superb as a tail gyro, I think it's even smoother than my GY701 in F3C mode. And holds like granite, no drift or anything at all. I still have the tail behavior pot centered, so haven't tried changing the behavior.

So it's not a total loss - works just magnificent on the tail....

LS

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12-19-2011 02:02 AM  5 years agoPost 13
helidevil

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Brunswick, ME

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im having piro consistancy issues on mine, i still need to tune it lol but all systems are different..but good that you like it!

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12-19-2011 02:12 PM  5 years agoPost 14
unclejane

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santa fe, NM, USA

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well I'm not good enough of a pilot to notice if there's any problems with piros with it. But perhaps the tail dynamic pot can be used to adjust that somehow.

But like I said, I don't think I've used a better tail gyro yet except for my GY701... It's worth the price of the entire unit just for a tail gyro alone...

LS

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12-19-2011 02:22 PM  5 years agoPost 15
red_z06

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Dumont, NJ

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What sort of problem did you have in FBL mode?

www.JustinJee.com

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12-19-2011 02:40 PM  5 years agoPost 16
unclejane

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santa fe, NM, USA

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I go into it in considerable detail in my "underwhelming performance" thread. Basically, a hard uncommanded left cyclic movement on spoolup about every 1 in 5 or 6 takeoffs. Sometimes the swashplate would just pop a little to the left momentarily, but on two occasions it was sudden full left. First time it took out my rotor blades, and the second time I was able to save it with instant full right stick. Took the machine home and put the FB head in it immediately after that .

In the air, once I did manage to takeoff without a crash, it was fabulous, though. no drift, bobbling or anything - held an attitude perfectly and flew like it was on rails.

But throwing the heli over onto its left side on takeoff was kind of a showstopper problem .

So I had to abandon FBL on it. The heli is my 700E on which everything is balanced and tracked to the gnats a$$ over the last few months I've flown it with the FB head. So I don't know what was perturbing it.

As I said, as a tail gyro, it's perfection itself, but for FBL it's too expensive to operate ....

LS

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12-19-2011 02:50 PM  5 years agoPost 17
red_z06

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Dumont, NJ

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How was the power supplied to the system? Do you have single or dual servo connector powering the rx/fbl unit?

I've helped another fellow with occasional jumping issues. It was solved when solid power was supplied by adding another power connector to the receiver.

But, his problem was in the air and not on takeoff. I have heard that from few on the forums but never experienced myself to offer help. I have used both thin and thick and neither caused "death roll". I went with thin to stabilize it on hard maneuvers.

I also use a bead of hot melt between rx/servo and fbl/servo.

www.JustinJee.com

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12-19-2011 03:09 PM  5 years agoPost 18
unclejane

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santa fe, NM, USA

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I did it both ways, first with nothing but the S-bus cable supplying power, then with a redundant cable from the RX to the SYS connector.

I was using the 3M moulding tape that Ron Lund (the best of the best!) sent with the unit when I ordered it. I knew not to use the foam pads from BeastX....

I don't think power was the issue because it flew fine with just the single cable (tho I kept it only in a hover to keep the power needs down) and the second time it tried to flip over I had the redundant cable (and the RX batt was still at full charge).

Like I said, that was the only problem it had. In the air (assuming I managed to get off the ground), it was marvellous.

The only other data point was the blades - it only did this with my Curtis FAI blades (may they R.I.P.). It didn't do it nearly as bad with my align 690 3D blades - in fact every takeoff and flight was successful with those, with only a slight twitch of the swashplate at that magic rpm on spoolup.

Like I said, this is my 700E which I've balanced and tracked to nuclear perfection over the months since I've built it so it's as vibe-free as a heli can get. I even used the same blades I've run on it with the FB head to eliminate any balance issue from the equation.

To me it's a very bad failure mode in the presence of vibration problem. Throwing the heli onto the ground is NOT a good failure mode to have in the presence of a vibration .

As I said, I'm still intrigued by FBL, but if I try again it'll be with a more vibe-resistant unit, most likely the CGY 750....

LS

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12-19-2011 03:19 PM  5 years agoPost 19
red_z06

rrProfessor

Dumont, NJ

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To me it's a very bad failure mode in the presence of vibration problem. Throwing the heli onto the ground is NOT a good failure mode to have in the presence of a vibration .
I wish they (all FBL) had a better way of managing that too. But, I do not see a practical solution. It is much like the tail drifting on a vibrating heli with a tail gyro. There you only lose tail, but on FBL, it will be one of the 3axis or all of them.

www.JustinJee.com

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12-19-2011 03:27 PM  5 years agoPost 20
unclejane

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santa fe, NM, USA

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I wish they (all FBL) had a better way of managing that too. But, I do not see a practical solution. It is much like the tail drifting on a vibrating heli with a tail gyro. There you only lose tail, but on FBL, it will be one of the 3axis or all of them.
I've ticked off a few, and I've even gotten some mild hate mail for saying this, but I think it's true - this is where I think gyros (and in particular a lot of FBL units) Aren't Quite There Yet.

There's just no such thing as a vibe free heli - just doesn't exist. So I think the technology of gyros just has to advance a bit more, to become more vibration resistant than it is now.

Having to rely on simple good luck with placement, tape, and just the right resonances in the heli isn't a good philosophy IMO. Especially very expensive behavior like all-the-way-to-the-stop cyclic movements - that kind of demands that some improvements be made in this area.... IMO..... (something like that in full scale would get you shut down by end of day by the FAA!)

Right now, the most vibe-resistant sensors seem to be the Futaba tho. I know this from my GY 701 which is basically flawless on my nitro (which buzzes FAR worse than my 700E).

So if I try again I think the CGY 750 will be the way to go....

LS

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HelicopterMain Discussion › BeastX as standalone tail gyro?
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