printer.cfg

# This file contains pin mappings for the stock 2020 Creality Ender 3
# V2. To use this config, during "make menuconfig" select the
# STM32F103 with a "28KiB bootloader" and serial (on USART1 PA10/PA9)
# communication.

# If you prefer a direct serial connection, in "make menuconfig"
# select "Enable extra low-level configuration options" and select
# serial (on USART3 PB11/PB10), which is broken out on the 10 pin IDC
# cable used for the LCD module as follows:
# 3: Tx, 4: Rx, 9: GND, 10: VCC

# Flash this firmware by copying "out/klipper.bin" to a SD card and
# turning on the printer with the card inserted. The firmware
# filename must end in ".bin" and must not match the last filename
# that was flashed.

# See docs/Config_Reference.md for a description of parameters.

[include mainsail.cfg]
[include macros/macros.cfg]

[gcode_macro START_PRINT]
gcode:
  SAVE_GCODE_STATE NAME=start_print_state

  {% set BED_TEMP = params.BED_TEMP|default(0)|float %}
  {% set EXTRUDER_TEMP = params.EXTRUDER_TEMP|default(210)|float %}

  # These are duplicates of what is happening in the gcodes generated by Prusaslicer,
  # so they are pretty useless unless I switch to a different slicer.
  M140 S{BED_TEMP} # Start heating the bed
  M104 S{EXTRUDER_TEMP} # Start heating the extruder

  G28 # Home printer

  BED_MESH_CALIBRATE ; Do new default bed mesh and apply

  M190 S{BED_TEMP} # Wait for bed temp
  M109 S{EXTRUDER_TEMP} # Wait for extruder temp

  NOZZLE_PRIME_LINE

  RESTORE_GCODE_STATE NAME=start_print_state

  # We do not want this to be restored. Need this to be set for the print!
  SET_GCODE_OFFSET Z=-0.075 # Set Z-Offset

[gcode_macro END_PRINT]
gcode:
  SAVE_GCODE_STATE NAME=end_print_state
  # Move nozzle away from print while retracting
  G91 # Use incremental positioning

  # The important thing is for the extruder retraction here.
  G1 X-2 E-3 F300

  G90 # Use absolute coordinates

  # Setting Z we will move to if there is room.
  {% set current_z_plus_some = printer.toolhead.position.z + 10 %}

  {% set new_z = current_z_plus_some %}

  {% if printer.toolhead.axis_maximum.z < current_z_plus_some %}
    {% set new_z = printer.toolhead.axis_maximum.z %}
  {% endif %}

  G1 Z{new_z} F240

  # I think that the best Y position for showing the print would be at least such that the extruder is a few milimeters
  # behind the furthest Y axis position that we print on.
  # Barring that, what we should do is not go backwards if the Y is already further than our presentation preset.
  {% set good_y_presentation_value = printer.toolhead.axis_maximum.y * 0.85 %}

  {% set new_y = good_y_presentation_value %}

  {% if printer.toolhead.position.y > good_y_presentation_value %}
    {% set new_y = printer.toolhead.position.y %}
  {% endif %}

  G1 X5 Y{new_y} F2000 # present print

  M140 S0 # Turn off bed
  M104 S0 # Turn off extruder
  M106 S0 # Turn off fan

  M84 # Disable stepper motors

  RESTORE_GCODE_STATE NAME=end_print_state

[temperature_sensor raspberry_pi]
sensor_type: temperature_host
min_temp: 5
max_temp: 100

[stepper_x]
step_pin: PC2
dir_pin: PB9
enable_pin: !PC3
microsteps: 16
rotation_distance: 40
endstop_pin: ^PA5
position_endstop: 0
position_max: 235
homing_speed: 50

[stepper_y]
step_pin: PB8
dir_pin: PB7
enable_pin: !PC3
microsteps: 16
rotation_distance: 40
endstop_pin: ^PA6
position_endstop: 0
position_max: 237
homing_speed: 50

[stepper_z]
step_pin: PB6
dir_pin: !PB5
enable_pin: !PC3
microsteps: 16
rotation_distance: 8
#endstop_pin: ^PA7
endstop_pin: probe:z_virtual_endstop
#position_endstop: 0.0
position_max: 250
position_min: -3

[bltouch]
sensor_pin: ^PB1
control_pin: PB0
x_offset: -32
y_offset: -38
#z_offset: 0

[safe_z_home]
home_xy_position: 117.5,117.5
z_hop: 10
z_hop_speed: 5

[extruder]
max_extrude_only_distance: 100.0
step_pin: PB4
dir_pin: PB3
enable_pin: !PC3
microsteps: 16
gear_ratio: 42:12
rotation_distance: 26.359
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PA1
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PC5
min_temp: 0
max_temp: 300
pressure_advance = 0.0375

[bed_mesh]
speed: 150
horizontal_move_z: 5
mesh_min: 15,15
mesh_max: 190,190
probe_count: 5,5
algorithm: bicubic

[screws_tilt_adjust]
# The sprite pro's offset is -36.5,-40.
# Calcualted offset: -4.5,2
# Calculated bl touch offset: -32,-38
# Screw positions based on my own eyeballing:
#screw1: 27,29
#screw2: 197,29
#screw3: 27,199
#screw4: 197,199
screw1: 59,71
screw1_name: front left screw
screw2: 229,71
screw2_name: front right screw
screw3: 59,237
screw3_name: back left screw
screw4: 229,237
screw4_name: back right screw
horizontal_move_z: 10
speed: 150
screw_thread: CW-M4

[heater_bed]
heater_pin: PA2
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PC4
control: pid
# tuned for stock hardware with 50 degree Celsius target
pid_Kp: 54.027
pid_Ki: 0.770
pid_Kd: 948.182
min_temp: 0
max_temp: 130

[fan]
pin: PA0

[mcu]
serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0
restart_method: command

[printer]
kinematics: cartesian
max_velocity: 300
max_accel: 3000
max_z_velocity: 5
max_z_accel: 100

#*# <---------------------- SAVE_CONFIG ---------------------->
#*# DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
#*#
#*# [bed_mesh Glass]
#*# version = 1
#*# points =
#*# 	-0.187500, -0.047500, -0.102500, -0.147500, -0.180000
#*# 	-0.122500, 0.042500, -0.017500, -0.052500, -0.075000
#*# 	-0.115000, 0.065000, 0.005000, -0.020000, -0.042500
#*# 	-0.100000, 0.077500, -0.017500, -0.080000, -0.100000
#*# 	-0.130000, 0.047500, -0.017500, -0.052500, -0.087500
#*# x_count = 5
#*# y_count = 5
#*# mesh_x_pps = 2
#*# mesh_y_pps = 2
#*# algo = bicubic
#*# tension = 0.2
#*# min_x = 15.0
#*# max_x = 188.0
#*# min_y = 15.0
#*# max_y = 191.0
#*#
#*# [bltouch]
#*# z_offset = 2.840
#*#
#*# [bed_mesh PEI]
#*# version = 1
#*# points =
#*# 	-0.207500, -0.082500, -0.072500, -0.070000, -0.105000
#*# 	-0.145000, -0.025000, 0.022500, -0.010000, -0.060000
#*# 	-0.057500, 0.045000, 0.050000, 0.010000, -0.062500
#*# 	0.012500, 0.090000, 0.065000, -0.022500, -0.142500
#*# 	0.057500, 0.120000, 0.075000, -0.037500, -0.165000
#*# x_count = 5
#*# y_count = 5
#*# mesh_x_pps = 2
#*# mesh_y_pps = 2
#*# algo = bicubic
#*# tension = 0.2
#*# min_x = 15.0
#*# max_x = 188.0
#*# min_y = 15.0
#*# max_y = 191.0
#*#
#*# [bed_mesh default]
#*# version = 1
#*# points =
#*# 	  -0.065000, -0.017500, -0.095000, -0.130000, -0.222500
#*# 	  -0.075000, 0.032500, -0.020000, -0.047500, -0.132500
#*# 	  -0.112500, 0.012500, -0.012500, -0.012500, -0.065000
#*# 	  -0.130000, 0.020000, -0.007500, -0.002500, -0.072500
#*# 	  -0.202500, -0.047500, -0.052500, -0.027500, -0.062500
#*# x_count = 5
#*# y_count = 5
#*# mesh_x_pps = 2
#*# mesh_y_pps = 2
#*# algo = bicubic
#*# tension = 0.2
#*# min_x = 15.0
#*# max_x = 190.0
#*# min_y = 15.0
#*# max_y = 190.0
#*#
#*# [extruder]
#*# control = pid
#*# pid_kp = 19.764
#*# pid_ki = 1.046
#*# pid_kd = 93.385