Hello Folks,
First post here. I have a few issues maybe some of you may have insight on. I received a configured arducopter a few weeks ago from udrones. I've been tinkering with it since and am not convinced that the configuration is solid. I purchased a 9x to go with it. The 9x is in acrobat mode. Out of the box I had to reverse the pitch because pushing on the pitch was making arducopter lean backwards. So:
*** arducopter tends to drift backwards and to the left. doesn't seem that stable.
* I have run all setups multiple times. I have done both CLI and MavLink.
* I have balanced the props. Interestingly both CW props were mostly balanced while both CCW props were badly out of balance.
* I have leveled the craft multiple times through field, cli and mavlink.
* I have added guaze over the baro sensor.
* I have set the ESC's manually (a few times however it only has a unique beep when throttle fully on and after throttling off there seems to be no special signal)
* All motors start up about the same time *however* the rear motor *always* comes to rest well before the other 3 motors when throttled off.
* Strangely I can not get CLI/Setup/motors to work (tried at least 10 times).
-- usb plugged in
-- switch on CLI mode
-- battery unplugged
-- issue command CLI/setup/motors
-- plug battery in
-- move pitch and roll *all the way* to the the extremes.
-- nothing.
* arducopter came with 2.0.38 and i have since uploaded 2.0.39 multiple times through both arduino and with mission planner
Any ideas on the rear motor coming to rest before the others? And why it may be drifting backwards and to the left?
Thanks for any pointers!
Jason
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Replies
Are you sure the physical APM board is dead nuts level when you issue the level command?
Have you tried the in-air leveling feature? (disarm for 30 seconds)
Have you tried setting the copter on un-level ground that compensates for the drift, and then leveling it?
So does the platform lean then to the motor that comes to rest sooner? Is it a weak motor? You did not say if your quad is configured for X or +, or if you are running in Stable mode. Stable mode will work to over come a weak motor.
Also when leveling, your sub-trims need to be at zero.
I'm thinking that this has to do with your radio. What are the min/max PMW values you're getting?