Replies to This Discussion

DeveloperPermalink Reply by Marco Robustini on March 8, 2012 at 3:39am

I'm sorry Harrison, unfortunately these things can happen, but too often when something is wrong (defective APM2 or other, imho).
There is a more or less reliable, it is until it crashes.
I personally have tried Naza and is not that great, there are systems that work better and cost less.
Last week a friend has dropped over 3000$ of material with an Octo Mikrokopter.
The most users flies with APM2 and has all these problems.
Sure, there are always things to improve and we are working on this right direction.
Good luck with Naza! :-)

Marco

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Permalink Reply by Cliff Dearden on March 8, 2012 at 5:53am

Marco, you mention that there are systems that work better than "Naza" and cost less. Can you

be more specific and tell me which systems please? Also what problems did you experiance

with Naza? Thank you.

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DeveloperPermalink Reply by Marco Robustini on March 8, 2012 at 10:32am

Rabbit Flight Controller... and of course, APM2 with the latest fix (unreleased at the moment).

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Permalink Reply by Damian ONeill on March 8, 2012 at 7:04am

Sorry to hear about you copter.
I have found the Naza very stable, easy to setup and the best FPV board I have tried (would love RTL on it).
I have struggled with APM 2 as well on copters. Was flawless on a bixler with Arduplane. My APM 1 took some tuning but was excellent. I hope I can get the APM 2 going but I have put a lot time into it as well and am putting it back in the bixler for a while. I hope I can work it out as it has so much potential.
Good Luck with the NAZA

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Permalink Reply by Rod Cole on March 8, 2012 at 7:05am

Harrison:

My colleague just purchased a Wookong Multi. He is attempting to get a guide to basic settings (their equivalent to PID) but has been unable to speak to a US Wookong representative. We have both scoured the internet attempting to find anyone who can help him with no results. If you are expecting better support, you might have an unpleasant surprise.  I wish you luck with DJI (which, BTW, makes a great product in their high end controllers). I do not know how the Naza differs but I would think it is similar to the Wookong M.

Contrast that with this community. It is rare that a question or problem goes more than a few hours before someone steps up to help.

APM2 has had a few problems, but I have never seen a community better equipped than this one and which will step up to solve those problems in a very short time. When I received my board, it would load the software but would not verify the load. 3DR immediately issued an RMA and is reimbursing me for the shipping charges. Incidentally, no problems were found and the problem appears related to the fact that I am using a Windows 7 Virtual Machine running inside of Mac Snow Leopard because I do not own any Windows based computers. I still have to resolve that problem locally,

Considering the capabilities of APM2 at a price point that is one sixth that of the Wookong M, I am more than willing to deal with any problems because I know they will get fixed in short order by a very talented and conscientious team. That said, you can be sure I won't be putting my 5D Mark II up in the air until the current problem is resolved, but I remain faithful that it will soon be resolved.

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Permalink Reply by Jason Wise on March 4, 2012 at 3:10am

Help!, Out of the box default PID's except Rate Roll Ive tweaked it down, flying stabilize mode, I cant seem to get a stable hover, its hunting up and down and is constantly needing throttle input, In the past Ive had to add in the config file # define INSTANT_PWM ENABLED(which I dont need todo now)just to get my ESC's to arm, Ive flown alot better with 2.49 and below, nothing has changed in my setup or my approach to loading new code(via MP), I have a feeling it could be my ESC's are not 'fast enough', Im flying a heavish Hexa with latest code

Has something changed that is causing my ESC's to power up and down?

Im running APM 1 1280, Turnigy Trust 45amp ESC's and Turnigy SK3536-910kv motors

Im really scratching my head on this one!

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ModeratorPermalink Reply by Graham Dyer on March 4, 2012 at 3:29am

What's your THR_RATE_P?

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Permalink Reply by Jason Wise on March 4, 2012 at 4:25am

default .350

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ModeratorPermalink Reply by Graham Dyer on March 4, 2012 at 4:37am

Try .450, that helped me

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Permalink Reply by Jason Wise on March 4, 2012 at 4:54am

Ill give it a go, My hexa is hunting without touching the throttle even if I do get it into a hover, Its almost like its on alt hold but it isnt

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Permalink Reply by Rui Manuel Cravo Marques on March 4, 2012 at 7:12am

Jason, I believe you have a lot of power for the default PIDs. I'm on a quad with 2218 motors 30amp esc 930kv and I had to lower THR_RATE_P to 0.225, but this setting will affect you only on auto modes if I'm correct. Your problem must be with RATE and STAB P terms. Try to lower RATE_P to 0.070 and STAB P to 3.000. The best thing, if you can, would be to use ch6 (in air tuning) to tune this settings. Start by tunning RATE P wich is the most important, give min and max tunning values 50 to 150 (that will translate to 0.05 to 0.150) start from the lower and increase it slowly, when you feel oscilations it means it's too high, lower it to a confortable value. Put STAB and RATE I and D terms at 0 before you do this, since first you want it to fly reasonably stable, then, the other params can be tunned properlly.

 

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ModeratorPermalink Reply by Graham Dyer on March 4, 2012 at 9:01am

In air CH6 tuning setting not working at this time; http://code.google.com/p/ardupilot-mega/issues/detail?id=539

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