I’m new to APM and Mission Planner and am trying to get my multi dialed-in, but after only 5 minutes of hover attempts [at about 45% throttle] both of my CW-rotating motors (3 & 4) get so hot you can’t touch them, while the CCW motors remain cool. According to the Mission Planner logs, the outputs of motors 3 and 4 are double that of motors 1 and 2. Consequently, motors 3 and 4 quickly overheat (see attached log/screenshot below).
All calibrations have been re re re re re-run. ESCs, radio, accelerometers, compass, and everything appears to be balanced — fore-aft CG, props, etc. — yaw seems stable, I even disassembled the motors, balanced the bells, lubricated the shafts and bearings with EPIC oil for electrics (note that these motors are new and have less than 15 minutes run time on them).
To make matters worse, This is only the third real attempt to get a stable hover but I can’t quite get there from here. I still require manual input on the Tx of about 5% right roll and 5% up pitch for it to behave as well as it does in the video. I’d love for it to be rock steady but I’m not sure know how to get there and with two overheating motors there’s no way I’m going to attempt to fly outdoors. I have an email in to HK tech support but no reply yet.
Video is here: [youtube]http://www.youtube.com/watch?v=MKuDWPVwAaM[/youtube]
Any ideas? Thanks!