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Z probing offset when printing

DougmDougm
in Repetier-Firmware
Hello!

I`m implementing auto leveling in my MP maker select v2.
Works fine, capture the potins and so, but when the print start it prints with an offset of the bed that I`m having trouble to correct.

Any help is welcome!
thanks!:)


Comments

  • RepetierRepetier
    Normally an offset indicates wrong z-probe height during probing, resulting in correct rotation but wrong distance.
  • DougmDougm
    Repetier said:
    Normally an offset indicates wrong z-probe height during probing, resulting in correct rotation but wrong distance.

    Hello!
    I tried and in the log list in repetier host shows this message:

    "Z jerk was too low, setting to 0.71"

    but still printing with an offset =/

    I`m using the following code:


    // ################ Endstop configuration #####################
    #define ENDSTOP_PULLUP_X_MIN true
    #define ENDSTOP_X_MIN_INVERTING true
    #define MIN_HARDWARE_ENDSTOP_X true
    #define ENDSTOP_PULLUP_Y_MIN true
    #define ENDSTOP_Y_MIN_INVERTING true
    #define MIN_HARDWARE_ENDSTOP_Y true
    #define ENDSTOP_PULLUP_Z_MIN false //was true
    #define ENDSTOP_Z_MIN_INVERTING true
    #define MIN_HARDWARE_ENDSTOP_Z false
    #define ENDSTOP_PULLUP_X_MAX true
    #define ENDSTOP_X_MAX_INVERTING false
    #define MAX_HARDWARE_ENDSTOP_X false
    #define ENDSTOP_PULLUP_Y_MAX true
    #define ENDSTOP_Y_MAX_INVERTING false
    #define MAX_HARDWARE_ENDSTOP_Y false
    #define ENDSTOP_PULLUP_Z_MAX true
    #define ENDSTOP_Z_MAX_INVERTING false
    #define MAX_HARDWARE_ENDSTOP_Z false
    #define max_software_endstop_r true
    #define min_software_endstop_x false
    #define min_software_endstop_y false
    #define min_software_endstop_z true
    #define max_software_endstop_x true
    #define max_software_endstop_y true
    #define max_software_endstop_z true
    #define ENDSTOP_X_BACK_MOVE 5
    #define ENDSTOP_Y_BACK_MOVE 5
    #define ENDSTOP_Z_BACK_MOVE 5
    #define ENDSTOP_X_RETEST_REDUCTION_FACTOR 3
    #define ENDSTOP_Y_RETEST_REDUCTION_FACTOR 3
    #define ENDSTOP_Z_RETEST_REDUCTION_FACTOR 3
    #define ENDSTOP_X_BACK_ON_HOME 1
    #define ENDSTOP_Y_BACK_ON_HOME 1
    #define ENDSTOP_Z_BACK_ON_HOME 0
    #define ALWAYS_CHECK_ENDSTOPS 1
    #define MOVE_X_WHEN_HOMED 0
    #define MOVE_Y_WHEN_HOMED 0
    #define MOVE_Z_WHEN_HOMED 0
    // ################# XYZ movements ###################
    #define X_ENABLE_ON 0
    #define Y_ENABLE_ON 0
    #define Z_ENABLE_ON 0
    #define DISABLE_X 0
    #define DISABLE_Y 0
    #define DISABLE_Z 0
    #define DISABLE_E 0
    #define INVERT_X_DIR 0
    #define INVERT_Y_DIR 0
    #define INVERT_Z_DIR 1
    #define X_HOME_DIR -1
    #define Y_HOME_DIR -1
    #define Z_HOME_DIR -1
    #define X_MAX_LENGTH 200
    #define Y_MAX_LENGTH 200
    #define Z_MAX_LENGTH 180
    #define X_MIN_POS 0
    #define Y_MIN_POS 0
    #define Z_MIN_POS 0
    #define DISTORTION_CORRECTION 0
    #define DISTORTION_CORRECTION_POINTS 5
    #define DISTORTION_CORRECTION_R 100
    #define DISTORTION_PERMANENT 0
    #define DISTORTION_UPDATE_FREQUENCY 15
    #define DISTORTION_START_DEGRADE 0.5
    #define DISTORTION_END_HEIGHT 1
    #define DISTORTION_EXTRAPOLATE_CORNERS 0
    #define DISTORTION_XMIN 10
    #define DISTORTION_YMIN 10
    #define DISTORTION_XMAX 190
    #define DISTORTION_YMAX 190
    // ##########################################################################################
    // ##                           Movement settings                                          ##
    // ##########################################################################################
    #define FEATURE_BABYSTEPPING 1
    #define BABYSTEP_MULTIPLICATOR 1
    #define DELTA_SEGMENTS_PER_SECOND_PRINT 180 // Move accurate setting for print moves
    #define DELTA_SEGMENTS_PER_SECOND_MOVE 70 // Less accurate setting for other moves
    #define EXACT_DELTA_MOVES 1
    // Delta settings
    #define DELTA_HOME_ON_POWER 0
    #define DELTASEGMENTS_PER_PRINTLINE 24
    #define STEPPER_INACTIVE_TIME 360L
    #define MAX_INACTIVE_TIME 900L
    #define MAX_FEEDRATE_X 200
    #define MAX_FEEDRATE_Y 200
    #define MAX_FEEDRATE_Z 20
    #define HOMING_FEEDRATE_X 40
    #define HOMING_FEEDRATE_Y 40
    #define HOMING_FEEDRATE_Z 5
    #define HOMING_ORDER HOME_ORDER_XYZ
    #define ZHOME_MIN_TEMPERATURE 0
    #define ZHOME_HEAT_ALL 1
    #define ZHOME_HEAT_HEIGHT 20
    #define ZHOME_X_POS 999999
    #define ZHOME_Y_POS 999999
    #define ENABLE_BACKLASH_COMPENSATION 0
    #define X_BACKLASH 0
    #define Y_BACKLASH 0
    #define Z_BACKLASH 0
    #define RAMP_ACCELERATION 1
    #define STEPPER_HIGH_DELAY 0
    #define DIRECTION_DELAY 0
    #define STEP_DOUBLER_FREQUENCY 12000
    #define ALLOW_QUADSTEPPING 1
    #define DOUBLE_STEP_DELAY 1 // time in microseconds
    #define MAX_ACCELERATION_UNITS_PER_SQ_SECOND_X 1000
    #define MAX_ACCELERATION_UNITS_PER_SQ_SECOND_Y 800
    #define MAX_ACCELERATION_UNITS_PER_SQ_SECOND_Z 100
    #define MAX_TRAVEL_ACCELERATION_UNITS_PER_SQ_SECOND_X 1000
    #define MAX_TRAVEL_ACCELERATION_UNITS_PER_SQ_SECOND_Y 1000
    #define MAX_TRAVEL_ACCELERATION_UNITS_PER_SQ_SECOND_Z 100
    #define INTERPOLATE_ACCELERATION_WITH_Z 0
    #define ACCELERATION_FACTOR_TOP 100
    #define MAX_JERK 10
    #define MAX_ZJERK 0.3
    #define PRINTLINE_CACHE_SIZE 16
    #define MOVE_CACHE_LOW 10
    #define LOW_TICKS_PER_MOVE 250000
    #define EXTRUDER_SWITCH_XY_SPEED 100
    #define DUAL_X_AXIS 0
    #define FEATURE_TWO_XSTEPPER 0
    #define X2_STEP_PIN   ORIG_E1_STEP_PIN
    #define X2_DIR_PIN    ORIG_E1_DIR_PIN
    #define X2_ENABLE_PIN ORIG_E1_ENABLE_PIN
    #define FEATURE_TWO_YSTEPPER 0
    #define Y2_STEP_PIN   ORIG_E1_STEP_PIN
    #define Y2_DIR_PIN    ORIG_E1_DIR_PIN
    #define Y2_ENABLE_PIN ORIG_E1_ENABLE_PIN
    #define FEATURE_TWO_ZSTEPPER 0
    #define Z2_STEP_PIN   ORIG_E1_STEP_PIN
    #define Z2_DIR_PIN    ORIG_E1_DIR_PIN
    #define Z2_ENABLE_PIN ORIG_E1_ENABLE_PIN
    #define FEATURE_THREE_ZSTEPPER 0
    #define Z3_STEP_PIN   ORIG_E2_STEP_PIN
    #define Z3_DIR_PIN    ORIG_E2_DIR_PIN
    #define Z3_ENABLE_PIN ORIG_E2_ENABLE_PIN
    #define FEATURE_DITTO_PRINTING 0
    #define USE_ADVANCE 0
    #define ENABLE_QUADRATIC_ADVANCE 0

    // ################# Misc. settings ##################
    #define BAUDRATE 115200
    #define ENABLE_POWER_ON_STARTUP 1
    #define POWER_INVERTING 0
    #define KILL_METHOD 1
    #define ACK_WITH_LINENUMBER 1
    #define KEEP_ALIVE_INTERVAL 2000
    #define WAITING_IDENTIFIER "wait"
    #define ECHO_ON_EXECUTE 1
    #define EEPROM_MODE 1
    #undef PS_ON_PIN
    #define PS_ON_PIN -1
    #define JSON_OUTPUT 0
    /* ======== Servos =======
    Control the servos with
    M340 P<servoId> S<pulseInUS>   / ServoID = 0..3  pulseInUs = 500..2500
    Servos are controlled by a pulse width normally between 500 and 2500 with 1500ms in center position. 0 turns servo off.
    WARNING: Servos can draw a considerable amount of current. Make sure your system can handle this or you may risk your hardware!
    */
    #define FEATURE_SERVO 0
    #define SERVO0_PIN 11
    #define SERVO1_PIN -1
    #define SERVO2_PIN -1
    #define SERVO3_PIN -1
    #define SERVO0_NEUTRAL_POS  -1
    #define SERVO1_NEUTRAL_POS  -1
    #define SERVO2_NEUTRAL_POS  -1
    #define SERVO3_NEUTRAL_POS  -1
    #define UI_SERVO_CONTROL 0
    #define FAN_KICKSTART_TIME  200
            #define FEATURE_WATCHDOG 1
    // #################### Z-Probing #####################
    #define Z_PROBE_Z_OFFSET 0
    #define Z_PROBE_Z_OFFSET_MODE 0
    #define UI_BED_COATING 1
    #define FEATURE_Z_PROBE 1  //was 0
    #define Z_PROBE_BED_DISTANCE 0
    #define Z_PROBE_PIN 20 // was -1
    #define Z_PROBE_PULLUP 0
    #define Z_PROBE_ON_HIGH 0
    #define Z_PROBE_X_OFFSET -45
    #define Z_PROBE_Y_OFFSET -45
    #define Z_PROBE_WAIT_BEFORE_TEST 0
    #define Z_PROBE_SPEED 1.5
    #define Z_PROBE_XY_SPEED 150
    #define Z_PROBE_SWITCHING_DISTANCE 1.5
    #define Z_PROBE_REPETITIONS 2
    #define Z_PROBE_HEIGHT -1
    #define Z_PROBE_START_SCRIPT ""
    #define Z_PROBE_FINISHED_SCRIPT ""
    #define Z_PROBE_REQUIRES_HEATING 0
    #define Z_PROBE_MIN_TEMPERATURE 150
    #define FEATURE_AUTOLEVEL 1
    #define Z_PROBE_X1 20
    #define Z_PROBE_Y1 20
    #define Z_PROBE_X2 130
    #define Z_PROBE_Y2 20
    #define Z_PROBE_X3 100
    #define Z_PROBE_Y3 160
    #define BED_LEVELING_METHOD 1
    #define BED_CORRECTION_METHOD 0
    #define BED_LEVELING_GRID_SIZE 5
    #define BED_LEVELING_REPETITIONS 5
    #define BED_MOTOR_1_X 0
    #define BED_MOTOR_1_Y 0
    #define BED_MOTOR_2_X 200
    #define BED_MOTOR_2_Y 0
    #define BED_MOTOR_3_X 100
    #define BED_MOTOR_3_Y 200
    #define BENDING_CORRECTION_A 0
    #define BENDING_CORRECTION_B 0
    #define BENDING_CORRECTION_C 0
    #define FEATURE_AXISCOMP 0
    #define AXISCOMP_TANXY 0
    #define AXISCOMP_TANYZ 0
    #define AXISCOMP_TANXZ 0



    Thanks!! :)
  • RepetierRepetier
    The warning is not related to your problem. It is just a contarint to ensure correct motor timings.

    #define Z_PROBE_HEIGHT -1

    is what we are talking about. -1 means that when triggering the nozzle is 1mm below the bed, so makes normally no sense. Please note that this value is stored in eeprom and you need to change it there, not in the configuration. Use host/server eeprom editor to change.
  • DougmDougm
    Repetier said:
    The warning is not related to your problem. It is just a contarint to ensure correct motor timings.

    #define Z_PROBE_HEIGHT -1

    is what we are talking about. -1 means that when triggering the nozzle is 1mm below the bed, so makes normally no sense. Please note that this value is stored in eeprom and you need to change it there, not in the configuration. Use host/server eeprom editor to change.

    Ok!

    I got better results, but not there yet... =/
    it`s measuring the bed and still with an offset and not correcting the level of the bed as it prints...
    I have recorded what's happening...


    Thanks!! :)
  • RepetierRepetier
    What commands did you send and what did the log say? It looks like you did not home but use G32 only, whcih is a different process also both should set Z at the end.

    In your mode it will also go up "bed coating" mm. So make sure to have it on 0 to have your blue tape as reference. 
  • DougmDougm
    edited September 2017
    Repetier said:
    What commands did you send and what did the log say? It looks like you did not home but use G32 only, whcih is a different process also both should set Z at the end.

    In your mode it will also go up "bed coating" mm. So make sure to have it on 0 to have your blue tape as reference. 
    I sent this codes.
    and, bed coating = 0mm.

    ; Default start code

    G28
    G29

    G1 Z15 F{Z_TRAVEL_SPEED}
    M107 ; Turn off fan
    G90 ; Absolute positioning was 90
    M82 ; Extruder in absolute mode
    {IF_BED}M190 S{BED}
    ; Activate all used extruder
    {IF_EXT0}M104 T0 S{TEMP0}
    G92 E0 ; Reset extruder position
    ; Wait for all used extruders to reach temperature
    {IF_EXT0}M109 T0 S{TEMP0}


    Now I tried the G32 and removed the G29 before the print and its looking good :)


  • DougmDougm
    Thanks You Very Much!!!!
    I got it right! the ABL is working, and the print processes is going very well!
    :)
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