Hi all,
I have builded my first DIY quadcopter and have some unresolved issues with it. Unfortunately it is not stable enough to hover and fly. Quad begins to overcompensate and lose control very quickly if given higher throttle (30% throttle or more).
Total weight of quad is around 1,5kg (with lipo) and total motor thrust is about 3,2kg.
Components used:
Motors and propellers are balanced using tape method. Regardless of balancing there as still very high vibrations coming from motors that probably interfere with gyro/accelerometer sensor readings. Motors are isolated from wooden bar by rubber band and are held on bar using plastic ties. IMU sensor is mounted on top of wooden board held on ear plugs that are glued to frame.
I try everything I could think of to make it flyable but without no success. Tried replacing aluminum arms with wooden, putting rubber band on motor hold to reduce vibrations, putting IMU sensor on ear plug foam, balancing motors and propellers several times. I'm totally out of options now.
I think that problem could be in vibrations or frame or propeller adapter and propeller combination.
In following video quad is tied so it can move only around pitch axis. It has command to maintain zero angle position (horizontal).
Following are pictures of vibrations measurement taken with iSeismometer app (iOS).
http://tinypic.com/r/5bsknq/9
http://tinypic.com/r/2coiy5u/9
http://tinypic.com/r/2agks3b/9
http://tinypic.com/r/309lgl0/9
Help please. Any suggestions are welcome.
I have builded my first DIY quadcopter and have some unresolved issues with it. Unfortunately it is not stable enough to hover and fly. Quad begins to overcompensate and lose control very quickly if given higher throttle (30% throttle or more).
Total weight of quad is around 1,5kg (with lipo) and total motor thrust is about 3,2kg.
Components used:
ESC - Emax 20A SimonK
Motors - Emax XA2212 980KV
Propellers - 10x4.7 (plastic)
Lipo 3S 5000 mAh 11.1V 30C Zop Power
Flight controller - Arduino Uno (running self made code)
Gyro/Accelerometer - GY-87 (10DOF sensor)
Frame - self made - mostly wooden with two aluminum bars for stronger construction
Motors - Emax XA2212 980KV
Propellers - 10x4.7 (plastic)
Lipo 3S 5000 mAh 11.1V 30C Zop Power
Flight controller - Arduino Uno (running self made code)
Gyro/Accelerometer - GY-87 (10DOF sensor)
Frame - self made - mostly wooden with two aluminum bars for stronger construction
Motors and propellers are balanced using tape method. Regardless of balancing there as still very high vibrations coming from motors that probably interfere with gyro/accelerometer sensor readings. Motors are isolated from wooden bar by rubber band and are held on bar using plastic ties. IMU sensor is mounted on top of wooden board held on ear plugs that are glued to frame.
I try everything I could think of to make it flyable but without no success. Tried replacing aluminum arms with wooden, putting rubber band on motor hold to reduce vibrations, putting IMU sensor on ear plug foam, balancing motors and propellers several times. I'm totally out of options now.
I think that problem could be in vibrations or frame or propeller adapter and propeller combination.
In following video quad is tied so it can move only around pitch axis. It has command to maintain zero angle position (horizontal).
Following are pictures of vibrations measurement taken with iSeismometer app (iOS).
http://tinypic.com/r/5bsknq/9
http://tinypic.com/r/2coiy5u/9
http://tinypic.com/r/2agks3b/9
http://tinypic.com/r/309lgl0/9
Help please. Any suggestions are welcome.
