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HomeAircraftHelicopterAerial Photography and Video › Helicommand 3a,3d,Rigid Settings
03-06-2008 04:34 PM  10 years agoPost 41
lejon

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Las Vegas, Nevada

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how to? Help needed
I too am currently setting up an HC3A on my Xcell 1005 Gas running a Toxic Motors G231 (or it is a 230 as it is about 3 years old)and I have a JR8103 radio. Thanks to all of you who have posted here I have been able to get it set up with the exception of a few things.

1. I put the Pilot option on my flight mode switch because I couldn't think of another switch that has 3 positions and I have no slider on that particular radio. This meant I had to set up stunt I and II the same as normal mode but I have a difference in throttle settings even though the travel and curves seem to be the same. So my first question is should I move the controls to another switch and if not is there a way to get around the trim not working in Stunt I & II (because I think that is where the difference is)?

2. I am using the internal gyro (I removed my 401) but I am noticing that the travel in all three modes is very small and when I cranked it for a test as it got light on the skids it started to spin. I have sent the end points to 100 and it did not make any difference. I did not recognize an option in the PC setting to change this so I am at a loss for what to do next. The only other thing is that the gyro sensitivity function in the radio is still set to when I had the 401 installed so I am going to inhibit that but I did not think it would have much to do with the amount of travel? The question then is does anyone have any suggestions on what is causing this and what I might check to correct it?

Thanks

"If it is intuitively obvious to the most casual of observers, then it must be that I am just not casual enough"

Lejon

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03-27-2008 11:22 AM  10 years agoPost 42
DEMONjoe

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Germany

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Hey guys,
another crazy Joe, how funny :-)
Just wanted to let you know: there is a thread from Chandler, Esprit Models, also dealing with the setup of the HC hobby versions. I thought this may be interesting for you too.
http://scalerchelis.com/phpBB2/viewtopic.php?t=8713

@DKTek: after changing the settings in the software, did you push the "send" button to send the data to your HC? Sorry if this is a dummy idea, but sometimes it's the little things... :-) Another idea would be to test the latest software, V1.34.3. Some bugs should be killed in that one. Maybe it helps.

@Luis: it's even forbidden to activate the Rigid mode when using flybars!!! You would not like to evaluate the reactions of your heli when doing so

By the way, there seems to be a mistake in the manual, explaining on page 5 that "Rigid mode" stabilises both, flybar and flybarless systems. This is not correct. But it is correst that you can use the HC Rigid for helis with flybars, but only with deactivated "Rigid mode"!

Cheers,
Joe

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03-30-2008 03:38 AM  10 years agoPost 43
DKTek

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Melbourne, FL-USA

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But it is correct that you can use the HC Rigid for helis with flybars, but only with deactivated "Rigid mode"!
Hmmm, the three blade head that I use flies as good as the stock head (maybe a bit better), i.e- a flybar head. Maybe that's the issue! The Rigid doesn't actually know that there is a flybar but only reads the response time. In this case, maybe the Rigid see's the three blade head as a flybar system and that's why I'm not happy with the performance. Put it this way, I cannot fly the heli off the ground as usual with the Rigid. I have to leap into the air, otherwise it tries to roll over or pitch aft when slowly lifting off the ground.

I'm on the road right now but I'll have to run this by Chandler when I get home as he's not far from me....only 1/2 hour.

Thanks Crazy Joe, this is a real positive lead for me to pursue.

The beatings will continue until morale improves...

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04-02-2008 01:35 PM  10 years agoPost 44
muflonwookie

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Gdynia, Poland

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Hi Guys,
I've just setup my HeliCommand A on my helicopter. It looks like horizontal mode work correct - small drifts which can easily be compensate by TX. But the position hold doesn't work at all. When the gain is high (above 60) it is oscillating and when it is two low it is just drifting. I fly low 1 meter bove ground. I use SST Eagle with Zenoah engine, the HC is mounted in front of the helicopter (with foam tape).
Is it possible that it is caused by vibrations?
I don't have the cable to connect to PC - is the connection necessary to setup HC?

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04-02-2008 02:01 PM  10 years agoPost 45
rerazor

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Mich.

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Don't bother with Position Hold, to unpredictable with the Hobby versions.

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04-03-2008 09:15 AM  10 years agoPost 46
DEMONjoe

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Germany

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I've just setup my HeliCommand A on my helicopter. It looks like horizontal mode work correct - small drifts which can easily be compensate by TX. But the position hold doesn't work at all. When the gain is high (above 60) it is oscillating and when it is two low it is just drifting. I fly low 1 meter bove ground. I use SST Eagle with Zenoah engine, the HC is mounted in front of the helicopter (with foam tape).
Is it possible that it is caused by vibrations?
I don't have the cable to connect to PC - is the connection necessary to setup HC?
Hey wookie,
what type of ground are you flying on? Contrast? Moving grass? Anything the optic can't lock in to?
Vibrations should not be a problem in this case, as long as not the whole HC is shaking like crazy
Did you try the autotrim already? This will setup the horizontal mode values as good as possible and therewith help in perfecting the pos-mode.
Regarding the software, yes, it is recommended as you get a lot of possibilities to adjust the HC better to your heli than with only the SET button proceedure. For example the "positioning speed" and "elevator gain" in the expert settings for hor+pos-mode will allow you to adjust the oscillation problems and positioning ability to the helicopter size. "Smaller values fit better for larger helis", it says in the software.
Hope to help with that.
Cheers,
Joe

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04-03-2008 09:50 PM  10 years agoPost 47
buffythesaint

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Ontario,Canada

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Tail wag
Hi all. I'm having a tail wag problem with my Trex450 HC. No matter what I do I still get the wag. I've tried diff. gain settings with Pos. hold and horiz. mode. I've turned the HC off too. I'm using the onboard gyro with a futaba9457. I've tried all kinds of diff gain settings for it to (HH and Rate) and off, but it still wags. The futaba servo was the second servo I tried but it still wags Why is my tail servo moving back and forth? Is the servo getting some sort of false signal? Any help would be appreciated.

Buffy

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04-06-2008 02:36 AM  10 years agoPost 48
buffythesaint

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Ontario,Canada

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Tail Wag Fixed!
I fixed my tail wag problem. When I first set up my HC I was using a PCM Rx, auto trim disabed, pilot channel on aux2, aux channel on the gear switch for gyro mode. Everything worked fine until I swapped the Rx for an AR7000 spectrum Rx. I then changed the gear switch to auto trim and HH was set by PC at 65%. I had a little tailwag so I put the HH to 60% via PC, then OK. I then enabled the gyro mode in my Tx and set up the auto trim signal with the FM switch. I put the pilot channel on channel 5(gear) and toggled between pos. and hor. modes. I set the HH at 80%(60%HH) in my Tx. My auto trim triggered at 90%(80%HH). Thats when I had a severe tail wag. When I hooked the HC up to the PC, I checked when HH was active in the diagnostic panel(check box). I started at 0% in my gyro panel in my Tx. and scrolled up to see when the HH check box came on. It came on at 27% which should be 46% rate mode. I don't understand why this happens. For some reason the HC and the AR7000 did not like the FM switch. I did try reducing the gain setiing including 0% in my Tx but it still wagged. I then set the HC as I had with the PCM Rx. but with the AR7000, set the HH at 60%. I had some wag so ended up with 50% HH with no wag. I'm now at 85% in pos. hold and its working great. I also bumped up the head speed to 2800 from 2400.
Has anybody had any problems with HC's and 2.4GHz Rx's? Please feel free to add your two cents.

Buffy.

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04-06-2008 03:36 PM  10 years agoPost 49
Hogster

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Surrey, UK

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Very twitchy flying with flybarless :(
Hi all,

Had a really horrible time today with my HC Rigid and flybarless Logo 10. I just couldn't get it to stabilise the heli I kept trying to do the auto-trim thing (which resulted in the heli shooting off pretty quickly in a random direction when I triggered it, but when I brought it back it hovered ok...), and adding stabilisation gain didn't have any noticable effect on keeping the heli level, it exhibited the normal drift one would expect from a non-stabilised heli Also I noticed the tail was kicking around slightly - don't know why that was happening Maybe a vibration problem?

I think I just need to continue working with the HC software to try and tame the thing ....

I've heard some great reports of the Helicommand and what it can achieve, but I'm just not seeing it yet

Any thoughts are most appreciated,

Cheers,

David

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04-06-2008 04:23 PM  10 years agoPost 50
rerazor

rrElite Veteran

Mich.

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For rigid mode:

Don't even mess with Hor. Hold yet.
Adjust the rigid gain in the software just below oscillation occurs.
Trim to level hover using the TX trims.
Land hold SET button in until LED changes color.
Unplug power/power up.

You should now have a very stable heli.

Increase Hor. gain on TX slider.
Hold steady hover for 8 sec. then 'autotrim'
You now should have a stabilized heli to your autotrim setting. It should snap back when you release the sticks.
That should be it unless CG changes.

Note: Haven't used the HC tail gyro, can't help on that.
Don't touch Trims on TX again or else you will have to repeat the SET button procedure.

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04-06-2008 04:26 PM  10 years agoPost 51
rerazor

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Mich.

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What are your control travels at in the "mixer" tab?

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04-06-2008 04:30 PM  10 years agoPost 52
Hogster

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Surrey, UK

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Hey rerazor,

Thanks very much for those suggestions Which exact gain do you mean when you say Rigid gain? I don't have the heli in front of me at the mo so can't look at the software to see which sliders are in the Rigid menu ....

I will carry out these suggestions and let you know how things go.

Thanks

David

PS. Didn't realise you had to use the Auto-trim function when the Horizontal stabilisation was active .... I've been doing it with the stabilisation off ...

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04-06-2008 04:37 PM  10 years agoPost 53
Hogster

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Surrey, UK

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Ok just hooked up the software to the heli and took these:

http://hogster.rchomepage.com/logo1...ettings_6-4-08/

Many thanks for your input

David

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04-06-2008 04:59 PM  10 years agoPost 54
rerazor

rrElite Veteran

Mich.

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Your roll and pitch gain in the Rigid tab are only at 2. So your basically trying to fly a a flybarless heli with no electronic help.

Bump those up until you notice oscillation then move them down 10-20% or to your liking.

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04-06-2008 05:04 PM  10 years agoPost 55
Hogster

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Surrey, UK

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Ah I knew it would be something like that! The only reason I turned those down was because the sticks were very sensitive with the original values, and reducing them made the heli less sensitive .... Maybe I adjusted the wrong thing? Is it ok to really wind down the control travel in the Mixer tab to compensate (eg. down to 30, 40 or 50%)?

Thanks

David

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04-06-2008 05:07 PM  10 years agoPost 56
rerazor

rrElite Veteran

Mich.

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Yep I have mine control travel at 50 on the Jokers, leave it at 60 right now and measure your +/- of cyclic.

If you have to much Rigid gain you can almost see the oscillations after spool up. At least I did and just adjusted it down one number.

Try 6 for both. You just want to work on normal hover/flying stabilization then go on to SET procedure then Hor. mode.

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04-06-2008 05:12 PM  10 years agoPost 57
Hogster

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Surrey, UK

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Excellent, thanks so much! Will report back later

David

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04-06-2008 07:35 PM  10 years agoPost 58
Hogster

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Surrey, UK

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RERAZOR!! That did the trick!!!

She's now flying like a Rolls Royce!

I turned the RIGID gains up to 6, and then reduced the Stick Gain from 6 to 4. It flies beautifully now and I have regained my confidence in both myself as a pilot, in the HC, and in the decision to go flybarless!

I just had my longest flight so far of 13 minutes and I could feel there was still plenty of power left .... I will be interested to see how much the pack takes back ....

THANKS AGAIN!!

David

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04-06-2008 07:59 PM  10 years agoPost 59
rerazor

rrElite Veteran

Mich.

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Did you get the SET and Hor. Hold working?

And people say the HC units don't work.

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04-06-2008 08:20 PM  10 years agoPost 60
Hogster

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Surrey, UK

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Yes Once I got the heli level in a hover using the trim (and then landing and pressing the set button ... btw, it seems to reboot automatically after the LED goes green - do I have to turn the power off and on?) I increased the Horizontal Stabiliser gain and then did an Auto-trim or two My only gripe is not being able to use the Tx trims ... I found that I needed to add one or two clicks of trim to keep it motionless and didn't bother landing and going through the SET routine again ... why is that so vital?

Thanks again I need to get someone to film the heli in flight so I can show how smooth it flies now

David

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