I’m having a problem with a quadcopter which has the 3dRobotics APM 2.6 board.
It keeps wanting to tilt backwards.
I’ve followed all the setup instructions that there are in detail.
I’m using the quad firmware and have it set up as an “X” configuration.
I’ve calibrated all my ESCs correctly.
I’ve calibrated the accelerometer.
All the engines are connected to the correct channels on the APM. The reciever is also connected into the APM’s input channels correctly. (channel 1 into channel 1, channel 2 into channel 2 ect…).
I have the motors set up according to these instructions using the “Quad X” configuration.
Channel 1 is connected to the motor in the front-right (which has a pusher prop). Channel 2 is connected to the motor in the back-left (which has a pusher prop). Channel 3 is connected to the motor in the front-left (which has a normal prop). Channel 4 is connected to the motor in the back-left (which has a normal prop).
All the motors are also spinning in the correct direction according to that diagram on that webpage in the link.
The APM is facing forward like it’s supposed to.
I’m trying to fly in stabilize mode.
Whenever I try to increase the throttle without messing with the other sticks, it will just do a backflip into the ground without getting into the air.
If I pull back on the pitch all the way, it will go straight up without falling over. If I let go of the pitch, it will tilt backwards at almost a 90 degree angle and just keep going backwards like that until I cut the throttle or it crashes.
If I look at the failsafe screen in mission planner, it shows the transmitter channels and the APM channels.
When you increase the throttle, it shows that it has the front motors spin faster than the back motors unless you pull back on the pitch on the transmitter or hold the quad titled backwards at about a 45-65 degree angle.
Does anyone know how to fix this?? It’s driving me insane. I already asked about this on the 3drobotics forums but no one could help.