I have an SM450 Quadframe which I bought from RcTimer.com. I have the following components installed and wired up on the frame :
1. Power distribution board
2. 10X4.5 carbon propellers CW and CCW
3. Four 930KV motors - A2212-15
4. Four Rctimer 30A ESC with SimonK Firmware
The autopilot on use is APM 1.4 which I have uploaded with the latest ArduCopter code via Mission Planner with default PID settings.
I did the following checks:
a. leveling process successfully
b. radio setup process successfully with FUTABA T7C system
c. frame set to x mode
d. ESCs calibrated individually.
e. All motors spinning in the correct direction i.e 2 anti-clockwise and the other 2 clockwise
f. Propellers CW and CCW successfully attached, Props marked 10X4.5R are on the CW spinning motors
h. Approximate total weight 980 grams.
g. I am using 2200mAh 3S1P 25C battery. I have also tried to isolate the LIPO by using an external 12VDC 16A power supply to reduce payload. The APM is powered from the ESC BEC output.
When the quad is Armed and I apply maximum throttle all motors spin but it's unable to takeoff and leave the ground, although it bounces roughly 3cm from the ground catching small air.
What could be wrong with my setup?
Replies
My suggestion would be theat your motors/props are not spinning in the correct directions. Its a good idea to double check them. I have also noticed that depending where you buy the propellers the 10x4.5R may be CW for some, or CCW for other brands, so its best just to look and see the direction yourself. I am 99% sure its something to do with your motor directions or props.
The other thing could be radio calibration.
Regards