# This file contains common pin mappings for the BIGTREETECH SKR mini
# E3 v3.0. To use this config, the firmware should be compiled for the
# STM32G0B1 with a "8KiB bootloader" and USB communication.

# The "make flash" command does not work on the SKR mini E3. Instead,
# after running "make", copy the generated "out/klipper.bin" file to a
# file named "firmware.bin" on an SD card and then restart the SKR
# mini E3 with that SD card.

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

[virtual_sdcard]
path: ~/gcode_files

[display_status]

[pause_resume]


[stepper_x]
step_pin: PB13
dir_pin: !PB12
enable_pin: !PB14
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC0
position_endstop: 0
position_max: 300
homing_speed: 25


[tmc2209 stepper_x]
uart_pin: PC11
tx_pin: PC10
uart_address: 0
run_current: 0.75
stealthchop_threshold: 999999

[stepper_y]
step_pin: PB10
dir_pin: !PB2
enable_pin: !PB11
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC1
position_endstop: 0
position_max: 300
homing_speed: 25

[tmc2209 stepper_y]
uart_pin: PC11
tx_pin: PC10
uart_address: 2
run_current: 0.75
stealthchop_threshold: 999999

[stepper_z]
step_pin: PB0
dir_pin: PC5
enable_pin: !PB1
microsteps: 16
rotation_distance: 8

## for 3dtouch. comment for mannual mesh bed leveling
endstop_pin: probe:z_virtual_endstop

## uncomment below for manual mesh bed leveling and to enable Z limit switches
#endstop_pin: ^PC2
#position_endstop: 0

position_max: 350
position_min: 0
homing_speed: 10
homing_positive_dir: false
#homing_retract_dist = 5
#second_homing_speed = 3


[tmc2209 stepper_z]
uart_pin: PC11
tx_pin: PC10
uart_address: 1
run_current: 0.75
stealthchop_threshold: 999999

[extruder]
step_pin: PB3
dir_pin: PB4
enable_pin: !PD1
microsteps: 16
rotation_distance: 7.881
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PC8
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PA0
#control: pid
#pid_Kp: 21.527
#pid_Ki: 1.063
#pid_Kd: 108.982
min_temp: 0
max_temp: 260
min_extrude_temp: 0
max_extrude_only_distance: 1000


[firmware_retraction]
retract_length: 1
#   The length of filament (in mm) to retract when G10 is activated,
#   and to unretract when G11 is activated (but see
#   unretract_extra_length below). The default is 0 mm.
retract_speed: 40
#   The speed of retraction, in mm/s. The default is 20 mm/s.
unretract_extra_length: 0
#   The length (in mm) of *additional* filament to add when
#   unretracting.
unretract_speed: 30
#   The speed of unretraction, in mm/s. The default is 10 mm/s.


[tmc2209 extruder]
uart_pin: PC11
tx_pin: PC10
uart_address: 3
run_current: 0.5
stealthchop_threshold: 999999

[heater_bed]
heater_pin: PC9
sensor_type: ATC Semitec 104GT-2
sensor_pin: PC4
#control: pid
#pid_Kp: 54.027
#pid_Ki: 0.770
#pid_Kd: 948.182
min_temp: 0
max_temp: 100



[heater_fan nozzle_cooling_fan]
pin: PC7

[heater_fan controller_fan]
pin: PB15

[fan]
pin: PC6

[mcu]
serial: /dev/serial/by-id/usb-Klipper_stm32g0b1xx_34002B000750414235363020-if00



[printer]
kinematics: cartesian
max_velocity: 300
max_accel: 500
max_z_velocity: 5
max_z_accel: 100

# PROBE

[bltouch]
sensor_pin: ^PC14
control_pin: PA1
x_offset: 45
y_offset: 0
z_offset: 2.295
#stow_on_each_sample: False
#probe_with_touch_mode: True

[safe_z_home]
home_xy_position: 150,150 # Change coordinates to the center of your print bed
speed: 50
z_hop: 10
z_hop_speed: 10




[gcode_macro PAUSE]
description: Pause the actual running print
rename_existing: PAUSE_BASE
# change this if you need more or less extrusion
variable_extrude: 1.0
gcode:
  ##### read E from pause macro #####
  {% set E = printer["gcode_macro PAUSE"].extrude|float %}
  ##### set park positon for x and y #####
  # default is your max posion from your printer.cfg
  {% set x_park = printer.toolhead.axis_maximum.x|float - 5.0 %}
  {% set y_park = printer.toolhead.axis_maximum.y|float - 5.0 %}
  ##### calculate save lift position #####
  {% set max_z = printer.toolhead.axis_maximum.z|float %}
  {% set act_z = printer.toolhead.position.z|float %}
  {% if act_z < (max_z - 2.0) %}
      {% set z_safe = 2.0 %}
  {% else %}
      {% set z_safe = max_z - act_z %}
  {% endif %}
  ##### end of definitions #####
  PAUSE_BASE
  G91
  {% if printer.extruder.can_extrude|lower == 'true' %}
    G1 E-{E} F2100
  {% else %}
    {action_respond_info("Extruder not hot enough")}
  {% endif %}
  {% if "xyz" in printer.toolhead.homed_axes %}
    G1 Z{z_safe} F900
    G90
    G1 X{x_park} Y{y_park} F6000
  {% else %}
    {action_respond_info("Printer not homed")}
  {% endif %}

[gcode_macro RESUME]
description: Resume the actual running print
rename_existing: RESUME_BASE
gcode:
  ##### read E from pause macro #####
  {% set E = printer["gcode_macro PAUSE"].extrude|float %}
  #### get VELOCITY parameter if specified ####
  {% if 'VELOCITY' in params|upper %}
    {% set get_params = ('VELOCITY=' + params.VELOCITY)  %}
  {%else %}
    {% set get_params = "" %}
  {% endif %}
  ##### end of definitions #####
  {% if printer.extruder.can_extrude|lower == 'true' %}
    G91
    G1 E{E} F2100
  {% else %}
    {action_respond_info("Extruder not hot enough")}
  {% endif %}
  RESUME_BASE {get_params}

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

[board_pins]
aliases:
    # EXP1 header
    EXP1_1=PB5,  EXP1_3=PA9,   EXP1_5=PA10, EXP1_7=PB8, EXP1_9=<GND>,
    EXP1_2=PA15, EXP1_4=<RST>, EXP1_6=PB9,  EXP1_8=PD6, EXP1_10=<5V>

# See the sample-lcd.cfg file for definitions of common LCD displays.

#*# <---------------------- SAVE_CONFIG ---------------------->
#*# DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
#*#
#*# [extruder]
#*# control = pid
#*# pid_kp = 22.388
#*# pid_ki = 1.166
#*# pid_kd = 107.463
#*#
#*# [heater_bed]
#*# control = pid
#*# pid_kp = 68.981
#*# pid_ki = 1.006
#*# pid_kd = 1182.164