Quadcopter doesn't behave as expexted

[tobimai]

Hello,

My Quadcopter doesnt control well, for example it drifts forward, but when I put the stick backwards and then let it go it doesnt drift forwards but in an other direction. Does anybody know how I could solve this problem?

Hobbyking X580 GlassFiber Frame
Turnigy NTM Propdrive 28-30S 800kv
Turnigy GWS Style Slowfly propeller 12x4.5
Afro ESC 30A SimonK
KK 2.1.5 with 1.19S1 Pro Steveis Firmware
SLS Xtron 3600mAh 30/60C 3S

(I have one motor with a bad bearing, could that cause any porblems?)

 

[RENOV8R]

Hello,

My Quadcopter doesnt control well, for example it drifts forward, but when I put the stick backwards and then let it go it doesnt drift forwards but in an other direction. Does anybody know how I could solve this problem?

Hobbyking X580 GlassFiber Frame
Turnigy NTM Propdrive 28-30S 800kv
Turnigy GWS Style Slowfly propeller 12x4.5
Afro ESC 30A SimonK
KK 2.1.5 with 1.19S1 Pro Steveis Firmware
SLS Xtron 3600mAh 30/60C 3S

(I have one motor with a bad bearing, could that cause any porblems?)[/QUOTE]
Absolutely. Could also be caused by need for gyro/accelerometer calibration

 

[Quadcopter102]

Hello,

My Quadcopter doesnt control well, for example it drifts forward, but when I put the stick backwards and then let it go it doesnt drift forwards but in an other direction. Does anybody know how I could solve this problem?

Hobbyking X580 GlassFiber Frame
Turnigy NTM Propdrive 28-30S 800kv
Turnigy GWS Style Slowfly propeller 12x4.5
Afro ESC 30A SimonK
KK 2.1.5 with 1.19S1 Pro Steveis Firmware
SLS Xtron 3600mAh 30/60C 3S

(I have one motor with a bad bearing, could that cause any porblems?)

What you did not mention was - how did it behave BEFORE it had a bad motor bearing??