Arducopter 2.0.38 quad always wants to flip

Damn thing thinks its a 15 year old gymnast. I'm really frustrated and sick of going through 10x4.7 props so I switched to 9x5x3 and lost the landing gear for weight savings. Disconnected every motor last night and reconnected, ran motors command in CLI, reverse props are on clockwise motors. Recalibrated the throttle on the ESCs. Ran the motors at full throttle for a while to verify no bad motors or ESCs. Frame is set to X.

http://www.youtube.com/watch?v=FNeMYnb8C7g

Note the throttle increase just as its about to lift off? Thats not my input. I'm throttling DOWN every time it gets close to flipping if anything...

I've seen previous threads about this problem and it was always prop related. But I've verified my props 5+ times and gone through too many 10x4.7s trying to diagnose this.

I'm happy to post anything necessary to figure this out. Thanks for the help. I am using APM Planner 10.0.52

Tags: Ardcopter, flipping.

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Permalink Reply by Rui Manuel Cravo Marques on August 17, 2011 at 5:21pm

The normal behavior for "motors" command, would be : roll right -> right motors on, roll left -> left motors on, pitch up -> front motors on, pitch down -> back motors on.

Make sure also you don't have any channel mixing active in your radio. If you have it in ACRO mode, channels should be working without mixing (channels working independentlly), if you have it in HELI mode you may have some mixing on.

Permalink Reply by Diego on November 18, 2011 at 8:58pm

Did you ever solved this issue??  I love the vids, your dog reminds me of mine.  Since your quad hovered for a bit, all motors and props are connected.

 

Did you ever figured the problem?

Permalink Reply by Martin Szymanski on August 17, 2011 at 5:27pm

Dane you are ready to fly.

If you have never flown a copter learn with a simulator or a coaxial small copter.

I recently soldered to the + Lipo and hit the Ardu unit. The IMU is fine.

All is replaceable.

Don't hurt your dog.

 

Permalink Reply by Diego on November 18, 2011 at 8:58pm

Did you ever solved this issue??  I love the vids, your dog reminds me of mine.  Since your quad hovered for a bit, all motors and props are connected.

 

Did you ever figured the problem?

Permalink Reply by Dane on November 18, 2011 at 9:36pm

I've been working with coptercontrol. Its amazing. I am using it currently on a 7" FPV Quad to explore the house and neighbhood at night.

 

http://www.youtube.com/watch?v=0oN1DNVy9q8

Just got twin 1.2ghz diversity receivers and a new lightweight cam with great low light visibility for night flying.  My GPS snapped off its PCB so I need to order a new one or try to solder it.

I'd like to run Arducopter on my fpv quads simply because of the GPS location so if I have an accident, get stuck or crash I can take my laptop and drive toward it...

 

I have a Pixim Seawolf 690TVL for my 450mm quad, so I may run Arducopter on that just for the telemetry. What I really want is RSSI. Glad you like the dog, hes my service dog and is with me 24/7... Name is Ralph!

 

 

Permalink Reply by Diego on November 18, 2011 at 9:47pm

so what was the problrm with your big quad? wy was it flipping?

Permalink Reply by Dane on November 19, 2011 at 12:02am

magnetic declination was switched and the props were too far apart.

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