z axis motor not rotating jst toggling. and x and y motor dose not rotating in reverse direction

sagar

guys
my z axis motor is not rotating
its just toggling. and also the X and Y motors are rotating in only one direction
please help

Motalw

hi check your end stops if it is connected to N/C or N/O and if you have the same settings on the firmware.   

Repetier

z axis have too high speed/acceleration or not enough torque or are not squared and have to much friction. One of these prevents them from turning.