Re: Z axis Not working well

For M5 rods on the Z axis you need z steps=4000

however with this high value of steps/mm you need to slow the max feedrate down a bit

Quote

#define HOMING_FEEDRATE_Z (4*60)

//
// MOVEMENT SETTINGS
// @section motion
//

// default settings

#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,4000,500} // default steps per unit for Ultimaker
#define DEFAULT_MAX_FEEDRATE {300, 300, 5, 25} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {3000,3000,100,10000}

find the above section in the configuration.h and change
#define HOMING_FEEDRATE_Z (2*60)

#define DEFAULT_MAX_FEEDRATE {300, 300, 2, 25} // (mm/sec)