Problem with Z axis after print starts

makizz

Hi, I'm new here. I need help calibrating my Z axis. I tried everything but with no results. Clicking "Start Print" in Repetier homes my axis succesfully but after that Z axis goes all the way up until it starts grinding upper wall of printer. I tried using z offset in slic3r and Marlin but with no results.

Here are my configuration files:
/*----------------ENSTOP/PROBE----------------*/

#define USE_XMIN_PLUG

#define USE_YMIN_PLUG

#define USE_ZMIN_PLUG

//#define USE_XMAX_PLUG

//#define USE_YMAX_PLUG 

#define USE_ZMAX_PLUG

// Enable pullup for all endstops to prevent a floating state

#define ENDSTOPPULLUPS

#if DISABLED(ENDSTOPPULLUPS)

  // Disable ENDSTOPPULLUPS to set pullups individually

//  #define ENDSTOPPULLUP_XMAX

//  #define ENDSTOPPULLUP_YMAX

//  #define ENDSTOPPULLUP_ZMAX

//  #define ENDSTOPPULLUP_XMIN

//  #define ENDSTOPPULLUP_YMIN

//  #define ENDSTOPPULLUP_ZMIN

//  #define ENDSTOPPULLUP_ZMIN_PROBE

#endif

#define X_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.

#define Y_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.

#define Z_MIN_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.

#define X_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.

#define Y_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.

#define Z_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.

//#define Z_MIN_PROBE_ENDSTOP_INVERTING true // set to true to invert the logic of the probe.

/*----------------MOVEMENT----------------*/

#define DEFAULT_AXIS_STEPS_PER_UNIT   { 200, 80, 800, 100}

#define DEFAULT_MAX_FEEDRATE          { 50, 50, 2, 10 }

#define DEFAULT_MAX_ACCELERATION      { 100, 100, 25, 1000 }

#define DISABLE_E false // For all extruders

#define DISABLE_INACTIVE_EXTRUDER true // Keep only the active extruder enabled.

/*----------------MACHINE----------------*/

// Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.

#define INVERT_X_DIR true

#define INVERT_Y_DIR false

#define INVERT_Z_DIR false

// For direct drive extruder v9 set to true, for geared extruder set to false.

#define INVERT_E0_DIR false

#define INVERT_E1_DIR false

#define INVERT_E2_DIR false

#define INVERT_E3_DIR false

#define INVERT_E4_DIR false

/*----------------HOMING----------------*/

//#define NO_MOTION_BEFORE_HOMING  // Inhibit movement until all axes have been homed

//#define UNKNOWN_Z_NO_RAISE // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.

//#define MANUAL_X_HOME_POS 0

//#define MANUAL_Y_HOME_POS 0

//#define MANUAL_Z_HOME_POS 150

//#define Z_HOMING_HEIGHT -2  // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...

#define X_HOME_DIR -1

#define Y_HOME_DIR -1

#define Z_HOME_DIR -1

#define X_BED_SIZE 150

#define Y_BED_SIZE 150

#define X_MIN_POS 0

#define Y_MIN_POS 0

#define Z_MIN_POS 150

#define X_MAX_POS X_BED_SIZE

#define Y_MAX_POS Y_BED_SIZE

#define Z_MAX_POS 0

Repetier

I don't know the firmware you are using but z min/max are swapped. z min is 0 and z max is 150. z home dir must be 1 for z max homing.

MartinH

Need more information.
What printer do you have ?
Where is the Z endstop located, top or bottom ?
Do you have a Z probe fitted ?

At the moment you have both min and max endstops configured,
Z_MIN_POS 150     this should be 0
Z_MAX_POS 0        this should be 150

makizz

Thanks for the reply guys. I haven't had a time to work in my printer but today I finally got it working. Endstop for z axis was on wrong pins on the ramps. Can't believe that I haven't checked that :-/ 
Oh, BTW I'm using Marlin 1.1.9. with diy printrbot inspired printer.