printer.cfg

# Ender 3 Pro with SKR1.4 configuration

########################################
# MCU
########################################

[mcu]
serial: /dev/serial/by-id/usb-Klipper_lpc1768_0A800018A1086EAF4C63DC5EC32000F5-if00
restart_method: command

[mcu host]
serial: /tmp/klipper_host_mcu

########################################
# fluidd
########################################

[virtual_sdcard]
path: /home/printer/printer_data/gcodes
on_error_gcode: CANCEL_PRINT

[display_status]

[pause_resume]

[gcode_macro CANCEL_PRINT]
description: Cancel the actual running print
rename_existing: CANCEL_PRINT_BASE
gcode:
  TURN_OFF_HEATERS
  CANCEL_PRINT_BASE


########################################
# Mechanical
########################################

[printer]
kinematics: cartesian
max_velocity: 400
max_accel: 500
max_z_velocity: 10
max_z_accel: 100

########################################
# X-Axis
########################################

[stepper_x]
step_pin: P2.2
dir_pin: !P2.6
enable_pin: !P2.1
microsteps: 16
rotation_distance: 40
endstop_pin: tmc2209_stepper_x:virtual_endstop
position_endstop: -10
position_min: -10
position_max: 250
homing_speed: 30
homing_retract_dist: 0

[tmc2209 stepper_x]
uart_pin: P1.10
diag_pin: P1.29
run_current: 0.750
driver_SGTHRS: 92
stealthchop_threshold: 999999

[gcode_macro SENSORLESS_HOME_X]
gcode:
    {% set HOME_CUR = 0.200 %}
    {% set driver_config = printer.configfile.settings['tmc2209 stepper_x'] %}
    {% set RUN_CUR = driver_config.run_current %}
    # Set current for sensorless homing
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={HOME_CUR}
    G0 X5 F1200
    # Wait short time
    G4 P2000
    # Home
    G28 X0
    # Move away
    G0 X5 F1200
    # Set current during print
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={RUN_CUR}

########################################
# Y-Axis
########################################

[stepper_y]
step_pin: P0.19
dir_pin: !P0.20
enable_pin: !P2.8
microsteps: 16
rotation_distance: 40
endstop_pin: tmc2209_stepper_y:virtual_endstop
position_endstop: -15
position_min: -15
position_max: 230
homing_speed: 30
homing_retract_dist: 0

[tmc2209 stepper_y]
uart_pin: P1.9
diag_pin: P1.28
run_current: 0.750
driver_SGTHRS: 84
stealthchop_threshold: 999999

[gcode_macro SENSORLESS_HOME_Y]
gcode:
    {% set HOME_CUR = 0.200 %}
    {% set driver_config = printer.configfile.settings['tmc2209 stepper_y'] %}
    {% set RUN_CUR = driver_config.run_current %}
    # Set current for sensorless homing
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={HOME_CUR}
    G0 Y5 F1200
    # Wait short time
    G4 P2000
    # Home
    G28 Y0
    # Move away
    G0 Y5 F1200
    # Set current during print
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={RUN_CUR}

########################################
# Z-Axis
########################################

[stepper_z]
step_pin: P0.22
dir_pin: P2.11
enable_pin: !P0.21
microsteps: 16
rotation_distance: 8
endstop_pin: probe:z_virtual_endstop
position_min: -2
position_max: 230

[tmc2209 stepper_z]
uart_pin: P1.8
run_current: 0.500
stealthchop_threshold: 999999

[gcode_macro HOME_Z_PROBE]
gcode:
    G92 Z0
    G0 X150 Y110 F12000
    G28 Z
    G0 Z5 F1200

########################################
# Homing
########################################

[homing_override]
gcode:
    G0 Z5 F1200
    SENSORLESS_HOME_X
    SENSORLESS_HOME_Y
    HOME_Z_PROBE
set_position_x: 0
set_position_y: 0
set_position_z: 0

########################################
# Bed leveling
########################################

[bltouch]
sensor_pin: ^P0.10
control_pin: P2.0
#stow_on_each_sample: False
x_offset: -35
y_offset: 5
#z_offset: 0

[bed_mesh]
speed: 120
horizontal_move_z: 5
mesh_min: 30,30
mesh_max: 190, 190
probe_count: 4,4
fade_start: 1.0
fade_end: 10.0


[screws_tilt_adjust]
screw1: 60,30
screw1_name: front left screw
screw2: 235,30
screw2_name: front right screw
screw3: 235,205
screw3_name: rear right screw
screw4: 60,205
screw4_name: rear left screw
horizontal_move_z: 10.
speed: 50.
screw_thread: CW-M4



########################################
# Extruder
########################################

[extruder]
step_pin: P2.13
dir_pin: !P0.11
enable_pin: !P2.12
microsteps: 16
rotation_distance: 33.500
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: P2.7
sensor_type: EPCOS 100K B57560G104F
sensor_pin: P0.24
control: pid
pid_Kp: 22.2
pid_Ki: 1.08
pid_Kd: 114
min_temp: 0
max_temp: 280

[tmc2209 extruder]
uart_pin: P1.4
run_current: 0.800
stealthchop_threshold: 999999

#To-Do: Connect extruder cooling fan to HE1 (P2.4), open drain !

#Part cooling fan
[fan]
pin: P2.3

########################################
# Bed heater configuration
########################################

[heater_bed]
heater_pin: P2.5
sensor_type: EPCOS 100K B57560G104F
sensor_pin: P0.25
control: pid
pid_Kp: 54.027
pid_Ki: 0.770
pid_Kd: 948.182
min_temp: 0
max_temp: 130

########################################
# Display configuration
########################################

[display]
lcd_type: st7920
encoder_pins: ^P1.20, ^P1.18
click_pin: ^!P0.28
cs_pin: P1.22
sid_pin: P1.23
sclk_pin: P1.21

########################################
# Custom G-Codes
########################################
[gcode_macro START_PRINT]
description: Ender 3 Custom Start G-code
gcode:
    {% set bed_temp = params.BED|default(40)|float %}
    {% set nozzle_temp = params.NOZZLE|default(190)|float %}
    M104 S150           # set temporary nozzle temp to prevent oozing during homing and auto bed leveling
    M140 S{bed_temp}    
    M190 S{bed_temp}    # wait for bed temp to stabilize
    

    G92 E0      # Reset Extruder
    G28         # Home all axes
    BED_MESH_CALIBRATE
    #BED_MESH_PROFILE LOAD=FR4_1.5   # Load saved mesh
    G1 X-5 Y-15 F5000          # move to front left to heat up nozzle
    M104 S{nozzle_temp}     # set final nozzle temp
    M109 S{nozzle_temp}     # wait for nozzle temp to stabilize

    G1 Z2.0 F3000                   # Move Z Axis up little to prevent scratching of Heat Bed
    G1 X0.1 Y20 Z0.5 F5000.0        # Move to start position
    G1 X0.1 Y200.0 Z0.5 F1500.0 E12 # Draw the first line
    G1 X0.4 Y200.0 Z0.5 F5000.0     # Move to side a little
    G1 X0.4 Y20 Z0.5 F1500.0 E24    # Draw the second line
    G92 E0                          # Reset Extruder
    G1 Z2.0 F3000                   # Move Z Axis up little to prevent scratching of Heat Bed
    G1 X5 Y20 Z0.4 F5000.0          # Move over to prevent blob squish

[gcode_macro END_PRINT]
description: Ender 3 Custom End G-code
gcode:
    G91 # Set axes to relative positioning
    G1 Z2 F600 # Move print head up
    G90 # Set axes to absolute positioning
    G1 X5 Y{printer.toolhead.axis_maximum.y*0.8} F5000.0 # Present print
    M140 S0 # Turn off heatbed
    M104 S0 # Turn off temperature
    M107 # Turn off fan
    M84 X Y E # Disable motors

########################################
# Shutdown printer
########################################
[gcode_macro SHUTDOWN_MACHINE]
gcode:
    {action_respond_info("Shutdown requested")}
    {% if printer.idle_timeout.state != "Printing" %}
        M117 Shutdown
        {action_respond_info("Shutdown initiated")}
        G4 S1
        {action_call_remote_method('shutdown_machine')}
    {% else %}
        {action_respond_info("Cannot shutdown during printing")}
    {% endif %}
#initial_duration: 0.0

[menu __main __poweroff]
type: command
enable: {printer.idle_timeout.state != "Printing"}
name: Turn off Pi
gcode:
    { menu.exit() }
    SHUTDOWN_MACHINE

[gcode_button shutdown_button]
pin: ^!P1.0
press_gcode:
    SHUTDOWN_MACHINE

#*# <---------------------- SAVE_CONFIG ---------------------->
#*# DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
#*#
#*# [bltouch]
#*# z_offset = 1.950
#*#
#*# [bed_mesh FR4_1.5]
#*# version = 1
#*# points =
#*# 	0.077500, 0.137500, 0.082500
#*# 	0.015000, -0.020000, -0.047500
#*# 	0.032500, -0.032500, 0.057500
#*# tension = 0.2
#*# min_x = 30.0
#*# algo = lagrange
#*# y_count = 3
#*# mesh_y_pps = 2
#*# min_y = 30.0
#*# x_count = 3
#*# max_y = 205.0
#*# mesh_x_pps = 2
#*# max_x = 205.0
#*#
#*# [bed_mesh default]
#*# version = 1
#*# points =
#*# 	  0.362500, 0.217500, 0.112500, 0.075000
#*# 	  0.295000, 0.115000, 0.020000, -0.072500
#*# 	  0.240000, 0.037500, -0.080000, -0.155000
#*# 	  0.265000, 0.087500, -0.045000, -0.105000
#*# x_count = 4
#*# y_count = 4
#*# mesh_x_pps = 2
#*# mesh_y_pps = 2
#*# algo = lagrange
#*# tension = 0.2
#*# min_x = 30.0
#*# max_x = 204.99
#*# min_y = 30.0
#*# max_y = 204.99