Replies to This Discussion

Permalink Reply by Martin diphoorn on July 9, 2012 at 1:14am

Have you doubled checked that your board is placed right? The front side should be at the front side off the Quad.

Permalink Reply by Dean White on July 9, 2012 at 1:44am

Hi Martin,

Yes I have the board in the front top of the Quad, its overhangs the centre by about 5cm, I can move it back to almost centre of the Quad.

Dean

Permalink Reply by Martin diphoorn on July 9, 2012 at 2:07am

The last time i had this behaviour my board front was at the back of the quad. So the corrections off the software just made it worse. This sounds just like that. But if you are sure thats ok, then i cant help you any further.

Permalink Reply by Dean White on July 9, 2012 at 3:04am

Thanks Martin, Just in case I have moved the board to the centre of the Quad.

Permalink Reply by Enrico Bazan on July 9, 2012 at 3:04am

Hi Dean,

      I had the same exact problem, than I realized that the board was not 'looking' forward.

Have a look at the arrows painted on the board: the 'roll' arrow should point forward.

 enrico

Permalink Reply by Dean White on July 9, 2012 at 4:07am

I don't think that it is back to front, I have it mounted via Velcro in the plastic case that came with the APM2.

The red arms are the front of the Quad

Permalink Reply by Wessie on July 9, 2012 at 4:26am

Dean, you probably have, but lets double-check:

1. Have you manually calibrated all the ESC's individually?

2. Have both stage 1 and stage 2 HAND tests passed ok?

Wessie

Permalink Reply by Dean White on July 9, 2012 at 4:36am

Hi Wessie,

Yes I have manually calibrated all ESC's individually and then after that I calibrated them all automatically just to be sure, as per the manual. 

Thanks for the suggestion, I am getting desperate.

Dean 

Permalink Reply by Wessie on July 9, 2012 at 5:48am

And the results of the 2 hand tests?

Wessie

Permalink Reply by Rui Manuel Cravo Marques on July 9, 2012 at 4:16am

Hello. Can you please confirm your Angular Rate Control P = 0.800 ?! If that's correct, you have it way too high. For your configuration maybe you want to try something like 0.120. The default value is 0.180 so if you have it at 0.800... that's about 4 times more than default. Confirm, correct if that's the case and try again.

What you describe happened to me maybe 3 times, I think it had to do with some corrupted data or parameters in memory. What I did was go into terminal mode, -> setup -> erase -> reset ! After this I re uploaded the firmware, done all the calibration procedure, radio calibration, level etc again, tuned the parameters and everything was ok.

 

Permalink Reply by Dean White on July 9, 2012 at 4:47am

Hi Rui

Yes I have the Angular Rate Control P = 0.800

I will adjust this to 0.120 and follow your instructions, unfortunately this will have to wait until tomorrow before I will get a chance to test it.

Thanks Dean 

Permalink Reply by Dean White on July 9, 2012 at 11:44pm

Two more broken props latter ... I not having much luck,

I have erased and then reset, uploaded the 2.6 quad firmware and went through the whole process once again. I checked the programming of the ESCs using a Turnigy programming card and then calibrated them as per the Arducopter manual. 

The motors arm ok but once again the quad just flips right over but this time left to right, it didn't get off the ground more than a foot before it was upside down with damaged props.

Dean :-( 

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