Replies to This Discussion

Permalink Reply by Dean White on July 10, 2012 at 11:08pm

I have managed to figure out one issue and that was I had reversed channel 3 in the TX and also checked to reverse channel 3 in the Mission Planner - Configuration- Radio Calibration tab.  The Quad still flips but it is not so violent. 

I have checked and rechecked the ESC calibration many times so at this stage I think I might have a gyro setting issue. Did I say that I was desperate :-) ?

Dean 

Permalink Reply by Wessie on July 11, 2012 at 6:17am

still waiting for your hand-tests results Dean

If you do them first you will not have so many broken props....

Just thought of someting : VERIFY in Mission planner that you are in Manual mode, not Acro.

Hold the quad FIRMLY in one hand., Props ON.

at this point it would be highly advised to have it connected to the mission planner, verify that the AH is funtioning properly by tilting it in the axis'. the AH will respond correctly. Watch out , left/right SEEMS the wrong way round to some people but it should be like that..

TEST 1:

If connected via USB cable, you can disconnect that now if you like.

Arm the APM, advance to half throttle. all Sticks in the middle, the quad should feel like it wants to do NOTHING. It must not pull in any direction. you can now reduce the power to 1/4 if you are feeling nervous. If you tilt it in any direction, it must feel like it wants to fight you on this, so if you tilt it back, the back props will spin faster, front props will slow down. Check all directions.

If all works ok till here, proceed to Hand-Test 2

Test 2 :

Still holding it FIRMLY as before, APM armed, Props Spinning, throttle at 50%.

Push your elevator forward(up). The quad must want to tilt forward.

repeat for Elevator Back(down). Quad wants to tilt back.

Repeat for Aileron controls, carefully check the direction the quad is pulling corresponds to your sticks.

If both tests pass she MUST fly, even badly, in which case you need to check your pids.

I am going to take a flyer and say you wont even pass test1, pointing to the fact that you may have the ESC leads in the wrong places on the APM. check AGAIN the arm numbers actually correspond to the APM outputs.

Permalink Reply by Dean White on July 11, 2012 at 11:46pm

Hi Wessie,

Success, it flies.

I checked all the ESC leads and removed and shrink wrapped the power wire on three of the ESCs and as I was putting my props back on I noticed that one of the engine mounts was damaged in the last crash and pointing inwards. After I replaced the mount I noticed that I had installed 3 pusher props after the last crash .

Once I replaced the prop I was able to test the quad and get it to fly, it drifts off to the right a little but this is just a minor tuning issue.

I feel like a total noob and very embarrassed.

Thank you for helping me to sort this out

Dean 

Permalink Reply by Wessie on July 13, 2012 at 3:05am

Dont feel embarrased, sometimes the little things flummax us!

Glad you have it flying now

Wessie

Permalink Reply by Clarence Corriveau on August 1, 2012 at 1:33pm

I think I see your problem.  Was same as mine.  The 4-wire connector on right of photo should have the white wire on the outermost connector.  Take your connector apart and conect the wires one at a time and see if you can't get the right connections.  What I found was that the outermost two wires had to be switched for each other, and likewise the inner two wires.  Try that.  Call me if you want. 509-366-5831.  By the way, that 4-wire connector came with the kit, so it was an error at the front end of the DIY shop!!

Clarence

Permalink Reply by Dean White on August 1, 2012 at 4:34pm

Hi Clarence,

The wire is just twisted underneath another wire, the white wire is correctly linked to channel 1 which is the outermost connector. I have the quad flying pretty well now (for a noobie),  I just have to gain experience and flying time before I upgrade to FVP.

Thanks for your help

Dean

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