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Hello! give another problem. I have always goes towards the axis Y. tried different settings and change the speed. Changed driver Drv8825 clocked at maximum capacity.

https://drive.google.com/file/d/0B0bCqFasYLxYRGlQS2xlekxSb1U/view?usp=sharing
https://drive.google.com/file/d/0B0bCqFasYLxYVHFERmhMMVhJdTg/view?usp=sharing
https://drive.google.com/file/d/0B0bCqFasYLxYSUlocTJ6U0pVaEU/view?usp=sharing
https://drive.google.com/file/d/0B0bCqFasYLxYUUdlazA5dGo2ZzA/view?usp=sharing

define HOMING_FEEDRATE {1200, 1200, 50, 0} // set the homing speeds (mm/min)
define DEFAULT_AXIS_STEPS_PER_UNIT {42, 42, 2500, 400}(3263.683958)/0.8, (3263.683951636)/(97*3.1415926)
define DEFAULT_MAX_FEEDRATE {22, 22, 0.25, 4.17}
define DEFAULT_MAX_ACCELERATION {300, 300, 1, 17}
define DEFAULT_ACCELERATION 150
define DEFAULT_RETRACT_ACCELERATION 17
define EXTRUDER_OFFSET_X {0.0, 20.00}
define DEFAULT_XYJERK 0.5 // (mm/sec)
define DEFAULT_ZJERK 0.01 // (mm/sec)
define DEFAULT_EJERK 0.1 // (mm/sec)


I think it's because of the backlash compensation on the motor 28BYJ-48. Where is it in the firmware onastraivaetsya?