LibrePilot Forum
Users => Vehicles - Helicopters => Topic started by: jochene on July 26, 2015, 08:41:54 am
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Hello there,
Yesterday evening times compiled my first version of Libre pilot and played at the CC3D , has contrary to expectations look works well . With the settings for Heli I noticed immediately that already so some errors from the Open Pilot GUI 15:02:02 were eliminated . That's great , I'm thrilled.
jochen
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That sounds like good news,
I almost tried to update my CC3D this morning, until I remembered that 15.05. is missing the CC3D support. So well, I will take a look at the current LibrePilot git :)
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Folks, I have to think of learning to complile software, certainly is not anything complicated, and many years ago I have tried compiling the Linux kernel.
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Hi there,
are there any recommended/tested values for the tail servo (yaw) stab settings for a 450 class heli?
I tried a variety of settings but tail is still unstable...
best regards,
Andre
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Unstable: oscillates? drifts? ?
You should probably start with AxisLock mode on the tail. It is better at holding a locked position.
Then you should look into tuning PID's, in particular the Yaw PID.
IANRAHP (I am not really a heli pilot)
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Hi there,
are there any recommended/tested values for the tail servo (yaw) stab settings for a 450 class heli?
I tried a variety of settings but tail is still unstable...
best regards,
Andre
Hi Andre.
Usually medium/large size multirotors suffer of tail wag.
You have to increase the yaw PIDs without fear of overdoing.
I've always had the red flags in the Basic tab with my 450.
Paolo
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Update:
Heli is quite stable now, had to repeat the "level" procedure after FW update.
Observed another thing now.-
- operating with 3 servos on the swash plate in manual
- using curve 2 as suggested for collective pitch
- when I move throttle to zero, the collective switches to negative max, when I rise the stick
just a bit, collective steps to neutral (all 3 servos).
Not really a problem, one only needs to give the main rotor a bit of time to spin down
before setting throttle to zero.
I am running "next" 20151106 21:22, release 15.09 showed the same effect.
Best regards,
Andre
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Update:
Heli is quite stable now, had to repeat the "level" procedure after FW update.
Observed another thing now.-
- operating with 3 servos on the swash plate in manual
- using curve 2 as suggested for collective pitch
- when I move throttle to zero, the collective switches to negative max, when I rise the stick
just a bit, collective steps to neutral (all 3 servos).
Not really a problem, one only needs to give the main rotor a bit of time to spin down
before setting throttle to zero.
I am running "next" 20151106 21:22, release 15.09 showed the same effect.
Best regards,
Andre
Is it still needed to configure the neutral servo position near to the minimum as described in the openpilot forum ?
Udo
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Hi,
I am in the same process of setting up my 450 Flybarless with the cc3d.
I used the instruction as per the setup in this page: https://frickelnundmehr.wordpress.com/
I am having the same issue where mid sick, the swash jumps up to go back down when I lower the collective. Or it does the inverse, it jumps down and goes backup up when i raise the collective.
Not sure where this comes from?
I did level the swashplate, and tune the radio...
Thanks
D
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Since a picture is worth a 1000 words, here is a video of what happens...
https://www.youtube.com/watch?v=JL0jGtjes5c
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My HK250 did that once, too.
Make sure in Configuration / Vehicle / Curves that you see 0,0 .25,0.5,0.75,1 and -1, -0.5,0,0.5,1
And make sure you use default throttle curve, D/R, and pitch curves with no tail mix when you do manual calibration of your TX - failure to get that might cause your swash trouble.
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I think the problem may be in your curve settings.... make sure you don't have any curves in your transmitter and reset your curves in CGS as well see attached picture. I made a little instructional video.. see if that helps. once you get the hang of it,.. it is very easy to setup this controller. I have 3 helis with cc3d, two 450 size and one 600 size...
https://youtu.be/ew1WdpScSn0
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https://youtu.be/XBHkVknoTO8
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Hi Guys,
Thanks for the pointers. I re-checked and everything is at it's default.
Here are my settings.
I checked on my remote and i see that it shifts at -5 and not at 0 if that can give you a clue... (-100 to 100) is my channel.
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I noticed this in you UAV under HW Settings:
<field values="5,2,3,4,6,1,9,7,8,0" name="ChannelNumber"/>
It seem to assign channel 5 to the throttle.
What happens if you try this:
<field values="1,2,3,4,5,6,9,7,8,0" name="ChannelNumber"/>
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Thanks for the suggestion. Just tried to remap the inputs and still have the same issue.
Maybe my firmware is broken and needs an update?
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Fimware seems OK. Just switched 3 250 helis to Libre Pilot from Open Pilot this morning.
I like it.
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About the jumpy swash. I just got mine to jump like that and then I changed the low and mid values for "pitch"in Config/ RC Input to smooth it out. I raised the lower value one or two numbers and put the mid value near that.
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About the jumpy swash. I just got mine to jump like that and then I changed the low and mid values for "pitch"in Config/ RC Input to smooth it out. I raised the lower value one or two numbers and put the mid value near that.
Wow, you are right, the mid value should be at the bottom of the scale and not in the middle at 0 pitch.
Thanks!
Hope it will fly now.
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I did some extensive testing with ver 15.09, the servos jumps as I increase throttle. Looks like its a ver 15.09 native glitch. after running transmitter calibration several times, I was able to fix it. I have been flying several helis with cc3d since last summer openpilot ver 15.02.02 never had any issues as such. here are some UAV files from my helis if anyone likes to experiment with. Specs: trex450 compatible, open pilot ver 15.02.02, CC3D, and cc3d atom
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Thank you SamSam, (and all contributing to the Heli setups!) I just found this forum and have ordered an atom for a 450 FBL clone I am resurrecting after a year of no helis.
The tutorial translates well. And I will use it for sure.
I am wondering if you are recommending to go back to 5.02 or use 5.09. Are the files you posted for a specific version?
I have not been able to view the video you have posted but I guess it is not in English anyway.
I am fairly new at setting up controllers as I only have used open pilot once to set up a cc3d for a ~320 sized quad and now have switched to Libre for that.
Alex
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Hi Alex.....15.02.02 was the last stable version from openpilot for CC3d. The attached files are for this version, and are base setup. if you are a 3D pilot you will have to change configuration accordingly. in my personal opinion I would stick with 15.02 until a stable new version comes out. by the way youtube videos are in English and I do not know if Librepilot filter out the link....here it is again without a link... youtu.be/ew1WdpScSn0 and youtu.be/XBHkVknoTO8 this is a just a demo to show how stable is this controller. youtu.be/cx0l1QhHQUE I am totally new to helis and learning to do 3D flying...sam
https://www.youtube.com/watch?v=ew1WdpScSn0
https://www.youtube.com/watch?v=XBHkVknoTO8
https://www.youtube.com/watch?v=cx0l1QhHQUE
Edit: fixed youtube links, you should use long url.
htttps://www.youtube.com/watch?v=cx0l1QhHQUE
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Hi,
Instead of still use the OP15.02 version, please consider fixing issues in current version.
Issues can be reported using our Jira website here:
https://librepilot.atlassian.net/projects/LP/issues/
This need our help, currently no one in dev team fly helicopters so when you report an issue please do not just say: "this do not work"
But better explain whats the current result and what should be the result expected.
Add documents to Jira ticket, config files, screenshots, etc...
Thanks,
Laurent
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@SamSam Librepilot isn't filtering out anything on the videos, the browsers are protecting the reader from insecure links on a secure page. The forums run in https mode and you posted a video link with http. If you change the link from http to https before posting it will show up. You can edit the existing post by clicking on the little page with a pencil icon in the lower right corner of the post.
You can get around the protection in Firefox by clicking on the lock symbol at the left end of the address bar, clicking on the right pointing arrow in the popup, and telling it to disable protection.
In Google Chrome the symbol is different (I forget what) and at the right end of the address bar, click on it and tell it to load unsafe content.
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Hi Laurent and hwh.... thank you for your inputs.. I will create a ticket in jira... if I run into any software bug....