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I like to build and fly uav´s



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Martin P. replied to Randy's discussion ArduCopter-3.1 released!
"Just tested 3.1 final on my big octo x. autotune, drift, sport, rlt, start/land in althold/loiter - works great. Maximum Load was 96,8 in Supersimple Loiter.
I only had to turn off prearmcheck, because i always get "check fs throttle value" - i…"
Dec 18, 2013
Martin P. replied to Randy's discussion ArduCopter-3.0.1 released!
"Hi Randy,
some time ago, you abandoned MOT TB RATIO from arducopter. Today i did some benchtesting again on my coax octocopter. My tests show that i can gain round about 5% efficiency by changing the speed of the upper vs. lower motor.
That is not…"
Oct 20, 2013
Martin P. replied to Frank Al's discussion Balancing propellors and motors
"I have a GY-521 and an Arduino Uno lying around. The GY-521 looks pretty much the same as the ADXL345. Do you think this will work too?"
Oct 16, 2013
Martin P. replied to Randy's discussion ArduCopter-3.0 ready for wider use
"Hi Randy,
i totally destroyed my copter with the last very short flight. Maybe you can have a look at the log. I don´t know what went wrong. I tuned stabilize P and Rate P. I had a nice fligtht. After changing the lipo i started again, but the…"
Jun 30, 2013
Martin P. replied to Craig Elder's discussion APM Copter 2.9.1.b has been released
i built my second octocopter as a coaxial octo. This time i carefully selected props and motors for high efficiency, Now i like to use the "motor top bottom ratio function" (mot_tb_ratio) to minimize inefficiency due to the coaxial setup. The…"
Jun 17, 2013