Posted by Andrew Adams on March 12, 2012 at 6:38pm
I finally got all my motors wired up and loaded the APM with the hexa firmware. I set up everything as I had done before. I plugged in the battery, armed the motors and was prepping for the maiden flight, this is where the issue begins.I slowly raised throttle only to have 4 motors spinning. At 25% throttle motor 4 kicked in (but noticeably slower than the others) and then at 50% throttle motor 1 started up. I rebooted the APM and same thing happened. I may try to reload and do the initial setup again tomorrow. I also need to verify wiring (although I checked about 4 times) because the motors don't seem to do,the expected given my stick input.Anyone else have this issue?
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Here is a video of me flying the copter while trying to give it jerky inputs...hopefully this is enough
Here is something else I noticed after flight 2...one of the motors appears to be burned and now does not rotate freely(or smoothly). Not sure what happened here. But it looks like I am going to need to replace it before I fly again.
You can see the blackend coil towards the bottom of the motor.
I reloaded my firmware and calibrated the ESCs and that has solved one problem. Turn out my ESCs are not plugged in correctly so I need to go rewire them.
I also seem to have a more serious problem...my copter doesn't have enough power/lift to achieve lift at a reasonable throttle level (70%). Is this normal? I would have expected it to lift off with much less. I am spinning 10x4.7 props on 1100kv motors. The hexa weighs in at 1.9kg.
I am looking at getting much lower kv motors and going to 12" props. Would that help?
Replies
Here is a video of me flying the copter while trying to give it jerky inputs...hopefully this is enough
Here is something else I noticed after flight 2...one of the motors appears to be burned and now does not rotate freely(or smoothly). Not sure what happened here. But it looks like I am going to need to replace it before I fly again.
You can see the blackend coil towards the bottom of the motor.
I also seem to have a more serious problem...my copter doesn't have enough power/lift to achieve lift at a reasonable throttle level (70%). Is this normal? I would have expected it to lift off with much less. I am spinning 10x4.7 props on 1100kv motors. The hexa weighs in at 1.9kg.
I am looking at getting much lower kv motors and going to 12" props. Would that help?
Any help/insight would be appreciated.
Have you run ESC calibration? Take a look at this: http://code.google.com/p/arducopter/wiki/AC2_ESC