Replies to This Discussion

Permalink Reply by heckmic on April 28, 2012 at 6:09am

Parameters are standard and in Stable Mode its ok but Loiter or RTL the copter want to commit suicide. Any idea?

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ModeratorPermalink Reply by Dean Wynton on April 28, 2012 at 8:14am

I have the same problem with my Tricopter if I turn on RTL it comes back in my direction but it doesn`t stop it goes right past me until I nearly lose sight of it and have to bring it back myself, and in loiter mode, well I dont think that loiter mode does anything, it just drifts off..

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3D RoboticsPermalink Reply by Chris Anderson on April 28, 2012 at 8:19am

If you're not using the standard 3DR platform, you'll need to tune your settings for your copter. Check out the animated guide here.

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Permalink Reply by heckmic on April 28, 2012 at 8:27am

Thats my Problem. I don't know with parameters to tune. It is not getting in my direction. It fleys simply away :(

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3D RoboticsPermalink Reply by Chris Anderson on April 28, 2012 at 8:30am

Are you sure you've got GPS lock (red led solid)?

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Permalink Reply by heckmic on April 28, 2012 at 8:50am

Yes, 3D fix in Mission Planner.

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ModeratorPermalink Reply by Dean Wynton on April 28, 2012 at 9:25am

I believe the GPS lock is a Blue led at least on apm2.0?

go into terminal and run a radio test with your radio switched on all trims should be central and channels 1 - 4 should be showing 0.

I have just done this and mine were not, which could be switching it out of loiter. The next step is to check C of G and then to run level command or auto trim.. which I am about to do shortly to get it as stable as possible, do not use radio trims.. I still need to test if this makes a difference but is raining here in London as usual. I believe this may solve the problem? if not I am lost again..

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DeveloperPermalink Reply by jasonshort on April 28, 2012 at 1:26pm

Please post a flash log of your loiter and rtl flight and I'll send you some gains that will work. You most likely have many of them too high with your extra thrust.

Jason

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Permalink Reply by heckmic on April 29, 2012 at 3:30am

Thank you, here are the Logs from yesterday. Or do you need two files, one in Loiter, one in rtl?

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Permalink Reply by heckmic on April 29, 2012 at 4:15am

Can't attach files... here is the link: http://michael-heck.net/downloads/logs.rar

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ModeratorPermalink Reply by Dean Wynton on April 29, 2012 at 6:47am

O.K so the rain stopped for about half an hour and I got out to test loiter and rtl. And they work alot better when I am not too far away...

When the tricopter is too far away it banks almost vertically in the wrong direction and falls from the sky, until I switch back to stabilize and bring it back manually?

I was hoping Jason would extend me the same courtesy and have a look at my logs as I dont reallly understand what they mean? by the way the GPS is off by about 26 miles west on google earth even using the co-odinates from the log, so if it looks like i have flown through trees and buildings dont be alarmed.

Thanks Dean..

Attachments:

• logs.zip, 616 KB

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Permalink Reply by James on April 30, 2012 at 7:06am

with my first flights i had an issue that seems very much like yours.

 

in my case it was simply an error in the configuration of magentic declination, i wanted to set 5º55' west and entered "-5.55" but windows regional settings expected a comma instead of a point.  the result was a magnetic heading with an error close to 180º, fixing this value fixed everything.

 

james

 

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