Recently, I tested the jdrones Arducopter Hexa V2.5.5, stock pids with Rate Roll P = 0.1, Stabilize control P = 3.5, I = 0.01, Imax = 2.000, Trim throttle = 450.
Flight: Stabilize mode
I controlled the hexa using only the throttle stick; No Roll/ pitch movements.
Problem No 1: Hexa tends to move in the backward direction i.e. in case of Hexa-X in the direction of the RC pins as shown in the video https://www.youtube.com/watch?v=UE9QEdZ4PPY&feature=youtu.be
We can say that its the wind but i observed the same problem in an indoor (without wind) gymnasium testing; Anyone got any idea what may be wrong?
Problem No. 2: As a noob RC controller, i was initially flying the hexa with a throttle exponential of -100% ( to have smooth takeoffs and landing) BUT when i changed the throttle exponential to -50 %, my hexa now leans to one side (i lost my two landing gears due to this). What is wrong at the higher throttle exponential?
https://www.youtube.com/watch?v=IKU5dYMm3Po&feature=youtu.be
Replies
Umer,
Do you have solution for this problem? I hexa have the some problem. The hexa tens to move
Hello Umer,
on 1.) stabilize does not mean it stays still in one position. You still have to correct the position manually a bit. Real stable only works using e.g. GPS with Loiter.
on 2.) I have found out that i can fly best not using expo at all. Maybe just connect a standard servo to your receiver and check if your output is linear - alternatively use the APM planner and see your stick responses (without motors armed and also rotor blades removed, for safety) to be linear.
Maybe this fixes your problem.