Prusa i3, Z probe, repetier firmware and problems...

Mister_Fab · December 2016

Hi all,

I have a prusa i3, with an inductive probe on Z.

With the Marlin firmware, the probe is also used as the Z endstop, and it works well.

As I modified the printer with a dual extruder, I wanted to switch with Repetier firmware (known to handle multiple extruders) , but I can't get the Z probe to work as an endstop.

I have been trying for two days to configure Repetier, but nothing works.

Has anyone got an idea?

Repetier · December 2016

You need to set z min endstop = z probe to get that. Homing order must by XY first! If endstop at home dposition does not work (no bed ) you need to use the version setting temperature. There you can also set probing position and simply set temperature to 0.

Mister_Fab · December 2016

Thank you for your answer.

I already defined as your recommended, now the probe works as an endstop

the probe is connected on the pin 12 so I modified this line:

#define ORIG_Z_MIN_PIN 12

but my problem was that pin 12 was already used with #define ORIG_PS_ON_PIN so I set it to -1 and it solved the Z endstop problem.

Because of ORIG_PS_ON_PIN 12 , the probe stopped working when I connected repetier host on USB

Now I try to activate the autolevel feature so it can also work with the endstop

Mister_Fab · December 2016

I am completely lost about the z leveling.

Seems the probe interferes between the fact it is used as endstop and as bed detection...

The probe is about 1 mm up the nozzle.

When I home z, the nozzle nearly touch the bed

When I launch a print task, after auto leveling, the nozzle start to print 3 or 4 mm away of the bed.

I am missing something, but I can't tell what.

Here's a copy of my configuration.h

If someone can have a look at it it would be nice.

#define NUM_EXTRUDER 2

#define MOTHERBOARD 33

#include "pins.h"

// ################## EDIT THESE SETTINGS MANUALLY ################

// ################ END MANUAL SETTINGS ##########################

#undef FAN_BOARD_PIN

#define FAN_BOARD_PIN -1

#define BOARD_FAN_SPEED 255

#define FAN_THERMO_PIN -1

#define FAN_THERMO_MIN_PWM 128

#define FAN_THERMO_MAX_PWM 255

#define FAN_THERMO_MIN_TEMP 45

#define FAN_THERMO_MAX_TEMP 60

#define FAN_THERMO_THERMISTOR_PIN -1

#define FAN_THERMO_THERMISTOR_TYPE 1

#undef Z_MIN_PIN

#define Z_MIN_PIN 12

//#define EXTERNALSERIAL use Arduino serial library instead of build in. Requires more ram, has only 63 byte input buffer.

// Uncomment the following line if you are using Arduino compatible firmware made for Arduino version earlier then 1.0

// If it is incompatible you will get compiler errors about write functions not being compatible!

//#define COMPAT_PRE1

#define BLUETOOTH_SERIAL -1

#define BLUETOOTH_BAUD 115200

#define MIXING_EXTRUDER 0

#define DRIVE_SYSTEM 0

#define XAXIS_STEPS_PER_MM 80

#define YAXIS_STEPS_PER_MM 160

#define ZAXIS_STEPS_PER_MM 1600

#define EXTRUDER_FAN_COOL_TEMP 50

#define PDM_FOR_EXTRUDER 0

#define PDM_FOR_COOLER 0

#define DECOUPLING_TEST_MAX_HOLD_VARIANCE 30

#define DECOUPLING_TEST_MIN_TEMP_RISE 1

#define KILL_IF_SENSOR_DEFECT 0

#define RETRACT_ON_PAUSE 2

#define PAUSE_START_COMMANDS ""

#define PAUSE_END_COMMANDS ""

#define SHARED_EXTRUDER_HEATER 1

#define EXT0_X_OFFSET 0

#define EXT0_Y_OFFSET 0

#define EXT0_Z_OFFSET 0

#define EXT0_STEPS_PER_MM 85

#define EXT0_TEMPSENSOR_TYPE 1

#define EXT0_TEMPSENSOR_PIN TEMP_0_PIN

#define EXT0_HEATER_PIN HEATER_0_PIN

#define EXT0_STEP_PIN ORIG_E0_STEP_PIN

#define EXT0_DIR_PIN ORIG_E0_DIR_PIN

#define EXT0_INVERSE 1

#define EXT0_ENABLE_PIN ORIG_E0_ENABLE_PIN

#define EXT0_ENABLE_ON 0

#define EXT0_MIRROR_STEPPER 0

#define EXT0_STEP2_PIN ORIG_E0_STEP_PIN

#define EXT0_DIR2_PIN ORIG_E0_DIR_PIN

#define EXT0_INVERSE2 0

#define EXT0_ENABLE2_PIN ORIG_E0_ENABLE_PIN

#define EXT0_MAX_FEEDRATE 50

#define EXT0_MAX_START_FEEDRATE 20

#define EXT0_MAX_ACCELERATION 2000

#define EXT0_HEAT_MANAGER 3

#define EXT0_WATCHPERIOD 1

#define EXT0_PID_INTEGRAL_DRIVE_MAX 230

#define EXT0_PID_INTEGRAL_DRIVE_MIN 40

#define EXT0_PID_PGAIN_OR_DEAD_TIME 7

#define EXT0_PID_I 2

#define EXT0_PID_D 40

#define EXT0_PID_MAX 255

#define EXT0_ADVANCE_K 0

#define EXT0_ADVANCE_L 0

#define EXT0_ADVANCE_BACKLASH_STEPS 0

#define EXT0_WAIT_RETRACT_TEMP 150

#define EXT0_WAIT_RETRACT_UNITS 0

#define EXT0_SELECT_COMMANDS ""

#define EXT0_DESELECT_COMMANDS ""

#define EXT0_EXTRUDER_COOLER_PIN -1

#define EXT0_EXTRUDER_COOLER_SPEED 255

#define EXT0_DECOUPLE_TEST_PERIOD 12000

#define EXT0_JAM_PIN -1

#define EXT0_JAM_PULLUP 0

#define EXT1_X_OFFSET 0

#define EXT1_Y_OFFSET 0

#define EXT1_Z_OFFSET 0

#define EXT1_STEPS_PER_MM 85

#define EXT1_TEMPSENSOR_TYPE 1

#define EXT1_TEMPSENSOR_PIN TEMP_0_PIN

#define EXT1_HEATER_PIN HEATER_0_PIN

#define EXT1_STEP_PIN ORIG_E1_STEP_PIN

#define EXT1_DIR_PIN ORIG_E1_DIR_PIN

#define EXT1_INVERSE 0

#define EXT1_ENABLE_PIN ORIG_E1_ENABLE_PIN

#define EXT1_ENABLE_ON 0

#define EXT1_MIRROR_STEPPER 0

#define EXT1_STEP2_PIN ORIG_E1_STEP_PIN

#define EXT1_DIR2_PIN ORIG_E1_DIR_PIN

#define EXT1_INVERSE2 0

#define EXT1_ENABLE2_PIN ORIG_E1_ENABLE_PIN

#define EXT1_MAX_FEEDRATE 50

#define EXT1_MAX_START_FEEDRATE 20

#define EXT1_MAX_ACCELERATION 2000

#define EXT1_HEAT_MANAGER 3

#define EXT1_WATCHPERIOD 1

#define EXT1_PID_INTEGRAL_DRIVE_MAX 230

#define EXT1_PID_INTEGRAL_DRIVE_MIN 40

#define EXT1_PID_PGAIN_OR_DEAD_TIME 7

#define EXT1_PID_I 2

#define EXT1_PID_D 40

#define EXT1_PID_MAX 255

#define EXT1_ADVANCE_K 0

#define EXT1_ADVANCE_L 0

#define EXT1_ADVANCE_BACKLASH_STEPS 0

#define EXT1_WAIT_RETRACT_TEMP 150

#define EXT1_WAIT_RETRACT_UNITS 0

#define EXT1_SELECT_COMMANDS ""

#define EXT1_DESELECT_COMMANDS ""

#define EXT1_EXTRUDER_COOLER_PIN -1

#define EXT1_EXTRUDER_COOLER_SPEED 255

#define EXT1_DECOUPLE_TEST_PERIOD 12000

#define EXT1_JAM_PIN -1

#define EXT1_JAM_PULLUP 0

#define FEATURE_RETRACTION 1

#define AUTORETRACT_ENABLED 0

#define RETRACTION_LENGTH 3

#define RETRACTION_LONG_LENGTH 13

#define RETRACTION_SPEED 40

#define RETRACTION_Z_LIFT 0

#define RETRACTION_UNDO_EXTRA_LENGTH 0

#define RETRACTION_UNDO_EXTRA_LONG_LENGTH 0

#define RETRACTION_UNDO_SPEED 20

#define FILAMENTCHANGE_X_POS 0

#define FILAMENTCHANGE_Y_POS 0

#define FILAMENTCHANGE_Z_ADD 2

#define FILAMENTCHANGE_REHOME 1

#define FILAMENTCHANGE_SHORTRETRACT 5

#define FILAMENTCHANGE_LONGRETRACT 50

#define JAM_STEPS 220

#define JAM_SLOWDOWN_STEPS 320

#define JAM_SLOWDOWN_TO 70

#define JAM_ERROR_STEPS 500

#define JAM_MIN_STEPS 10

#define JAM_ACTION 1

#define RETRACT_DURING_HEATUP true

#define PID_CONTROL_RANGE 20

#define SKIP_M109_IF_WITHIN 2

#define SCALE_PID_TO_MAX 0

#define TEMP_HYSTERESIS 0

#define EXTRUDE_MAXLENGTH 160

#define NUM_TEMPS_USERTHERMISTOR0 0

#define USER_THERMISTORTABLE0 {}

#define NUM_TEMPS_USERTHERMISTOR1 0

#define USER_THERMISTORTABLE1 {}

#define NUM_TEMPS_USERTHERMISTOR2 0

#define USER_THERMISTORTABLE2 {}

#define GENERIC_THERM_VREF 5

#define GENERIC_THERM_NUM_ENTRIES 33

#define HEATER_PWM_SPEED 0

// ############# Heated bed configuration ########################

#define HAVE_HEATED_BED 1

#define HEATED_BED_MAX_TEMP 120

#define SKIP_M190_IF_WITHIN 3

#define HEATED_BED_SENSOR_TYPE 1

#define HEATED_BED_SENSOR_PIN TEMP_1_PIN

#define HEATED_BED_HEATER_PIN HEATER_1_PIN

#define HEATED_BED_SET_INTERVAL 5000

#define HEATED_BED_HEAT_MANAGER 0

#define HEATED_BED_PID_INTEGRAL_DRIVE_MAX 255

#define HEATED_BED_PID_INTEGRAL_DRIVE_MIN 80

#define HEATED_BED_PID_PGAIN_OR_DEAD_TIME 196

#define HEATED_BED_PID_IGAIN 33

#define HEATED_BED_PID_DGAIN 290

#define HEATED_BED_PID_MAX 255

#define HEATED_BED_DECOUPLE_TEST_PERIOD 300000

#define MIN_EXTRUDER_TEMP 150

#define MAXTEMP 275

#define MIN_DEFECT_TEMPERATURE 5

#define MAX_DEFECT_TEMPERATURE 290

// ################ 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 true

#define ENDSTOP_Z_MIN_INVERTING true

#define MIN_HARDWARE_ENDSTOP_Z true

#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 false

#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 2

#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

// #################### 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

#define Z_PROBE_BED_DISTANCE 1

#define Z_PROBE_PIN 12

#define Z_PROBE_PULLUP 0

#define Z_PROBE_ON_HIGH 0

#define Z_PROBE_X_OFFSET 0

#define Z_PROBE_Y_OFFSET 0

#define Z_PROBE_WAIT_BEFORE_TEST 0

#define Z_PROBE_SPEED 2

#define Z_PROBE_XY_SPEED 150

#define Z_PROBE_SWITCHING_DISTANCE 1

#define Z_PROBE_REPETITIONS 1

#define Z_PROBE_HEIGHT 0

#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 40

#define Z_PROBE_Y1 40

#define Z_PROBE_X2 140

#define Z_PROBE_Y2 40

#define Z_PROBE_X3 40

#define Z_PROBE_Y3 140

#define BED_LEVELING_METHOD 1

#define BED_CORRECTION_METHOD 0

#define BED_LEVELING_GRID_SIZE 3

#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

#ifndef SDSUPPORT // Some boards have sd support on board. These define the values already in pins.h

#define SDSUPPORT 0

#undef SDCARDDETECT

#define SDCARDDETECT -1

#define SDCARDDETECTINVERTED 0

#endif

#define SD_EXTENDED_DIR 1 /** Show extended directory including file length. Don't use this with Pronterface! */

#define SD_RUN_ON_STOP ""

#define SD_STOP_HEATER_AND_MOTORS_ON_STOP 1

#define ARC_SUPPORT 1

#define FEATURE_MEMORY_POSITION 1

#define FEATURE_CHECKSUM_FORCED 0

#define FEATURE_FAN_CONTROL 1

#define FEATURE_FAN2_CONTROL 0

#define FEATURE_CONTROLLER 2

#define ADC_KEYPAD_PIN -1

#define LANGUAGE_EN_ACTIVE 0

#define LANGUAGE_DE_ACTIVE 0

#define LANGUAGE_NL_ACTIVE 0

#define LANGUAGE_PT_ACTIVE 0

#define LANGUAGE_IT_ACTIVE 0

#define LANGUAGE_ES_ACTIVE 0

#define LANGUAGE_FI_ACTIVE 0

#define LANGUAGE_SE_ACTIVE 0

#define LANGUAGE_FR_ACTIVE 1

#define LANGUAGE_CZ_ACTIVE 0

#define LANGUAGE_PL_ACTIVE 0

#define LANGUAGE_TR_ACTIVE 0

#define UI_PRINTER_NAME "RepRap"

#define UI_PRINTER_COMPANY "Home made"

#define UI_PAGES_DURATION 4000

#define UI_ANIMATION 1

#define UI_SPEEDDEPENDENT_POSITIONING 0

#define UI_DISABLE_AUTO_PAGESWITCH 1

#define UI_AUTORETURN_TO_MENU_AFTER 30000

#define FEATURE_UI_KEYS 0

#define UI_ENCODER_SPEED 1

#define UI_REVERSE_ENCODER 0

#define UI_KEY_BOUNCETIME 10

#define UI_KEY_FIRST_REPEAT 500

#define UI_KEY_REDUCE_REPEAT 50

#define UI_KEY_MIN_REPEAT 50

#define FEATURE_BEEPER 1

#define CASE_LIGHTS_PIN -1

#define CASE_LIGHT_DEFAULT_ON 1

#define UI_START_SCREEN_DELAY 1000

#define UI_DYNAMIC_ENCODER_SPEED 1

Repetier · December 2016

#define Z_PROBE_HEIGHT 0

is wrong. You need to set this to the distance of the nozzle to bed when the probe triggers. This is also in eeprom so changing it there is enough.

Since it triggers before touching you need to disable ALWAYS_CHECK_ENDSTOPS as well or it will prevent z move down.

Last is you need to start at a height where probe is not triggered. I think I need to add a test here that it moves up if probe is triggered before going down.

Mister_Fab · December 2016

Thanks a lot for the precision.
I just had the time to change the parameters and I saw the nozzle had already a better position.
Didn't have the time to launch a test print, but I ll tell you when I will.

Mister_Fab · December 2016

So I tried to launch a print test, leaving the probe untriggered as you said, but I am getting an error at the moment the automatic bed level gets its first point.

For information, my homing is good with the value Z-probe height = 0.950

Repetier · December 2016

You know G29 does not autolevel bed but only measure z height using an average?

Short time ago someone had the same error. Reason was that M119 shows a "h" for z max preventing it from succeeding.

Mister_Fab · December 2016

I think I solved my problem.

I added the command G1 Z20 in the custom start GCODE of Silc3r and it made it!

Mister_Fab · January 2017

Hi,

As I still have little problems, I'll continue with this thread.

I tried to configure the probe/nozzle offset, as the probe is 30mm away from the nozzle on the X and 7mm on the Y

So I defined the values Z_PROBE_X_OFFSET=30 and Z_PROBE_Y_OFFSET=-7 directly in the eeprom menu from repetier host, but when I modify the values, when starting a print and the printer starts, the X homing violently hits the endstop several times and I hear the motor cracking.

I tried several values for X offset, same problem, except when set to 0.

I used this to find the value (my probe on the same X side, but negative for Y)

Repetier · January 2017

What version are you using?

If you start at x home and enable z probe it will move 30mm left so it might crash into endstop. In dev it should not do that but position might then be wrong, so first do

G1 X50 Y50

and then enable z probe. Also consider the offset when setting the probe points. Extruder is always moved 30 left 7 front!

Prusa i3, Z probe, repetier firmware and problems...

Comments