[gcode_macro WIPE_NOZZLE]
variable_default_homing: 1              # 1 is yes, home away
variable_default_temp: 175
gcode:

      {% if 'gcode_macro PRINT_START' in printer and 'pre_home_on_wipe' in printer['gcode_macro PRINT_START']%} # needed for wipe_nozzle macro in klipper since start_print macro isn't called yet
          {% set PRE_HOME_STATE = printer['gcode_macro PRINT_START'].pre_home_on_wipe %}
      {% else %}
          {% set PRE_HOME_STATE = default_homing %}
      {% endif %}

      {% if printer.extruder.temperature|int < default_temp %}
        RESPOND TYPE=echo MSG="Heating nozzle to {default_temp}C..."
        M104 S{default_temp}                                            # non blocking heat up nozzle to luke warm, good for cleaning
      {% endif %}

      {% if PRE_HOME_STATE == 1 %}
        G28                                                              # home all axes
        G90                                                              # absolute positioning
      {% endif %}

      G1 X60 Y120 Z3 F9000                                             # move to first position before brush

      {% if printer.extruder.temperature|int < default_temp %}         # if only needed for isolated wipe_nozzle macro
        M109 S{default_temp}                                              # blocking if did not finish heating after homing
      {% endif %}

      G1 Z-1.5 F500                                                    # lower down next to brush
      # -- START clean nozzle in X direction 3x -- #
      {% for i in range(5) %}
          G1 X18 F12000  # swipe left to clean nozzle
          G1 X60 F12000  # swipe right to clean nozzle
      {% endfor %}
      # -- END clean nozzle in X direction 3x -- #

      # -- START clean nozzle in Y direction 12x -- #
      G1 X39 Y120 F1000  # move to middle of brush in X
      {% for i in range(12) %}
          G1 Y118 F12000
          G1 Y120 F12000
      {% endfor %}
      # -- END clean nozzle in Y direction 12x -- #

      G1 X60 Y120 Z3 F500                                     # park nozzle safely where nozzle clean started

[gcode_macro PRINT_START]
#   Use PRINT_START for the slicer starting script - please customize for your slicer of choice
variable_pre_home_on_wipe: 1
gcode:
    {% set target_bed = params.BED|float %}
    {% set target_extruder = params.EXTRUDER|float %}

    # --- start bed warmup --- #
    SET_LED LED=chamber_leds RED=1.0 GREEN=0.50 BLUE=0.0   # set color to orange to denote heating
    M140 S{target_bed}                                     # non-blocking heat bed
    SET_FAN_SPEED FAN=nevermore_fans SPEED=1.0             # Turn on Nevermore Fan to 100%
    WIPE_NOZZLE

    # --- heat chamber by blowing part cooling fan onto top of bed --- #
    M106 S255                                              # Turn on the PT-fan
    G1 X60 Y60 Z10 F500                                    # Go to center of the bed
    M190 S{target_bed}                                     # Set target temp for the bed

    # preheat before purge line
    M106 S0                                                # turn off part cooling fans, confirm this line is working
    G1 X60 Y120 Z3 F9000                                   ; move nozzle away from bed
    M109 S{target_extruder}

    SET_LED LED=chamber_leds RED=1.0 GREEN=1.0 BLUE=1.0    # set LED color to white for better print monitoring

    G92 E0                                                 ; Reset the extruder to 0
    M82                                                    ; set extruder to absolute mode
    G1 X60 Z0.2 E16 F500                                   ; Draw a priming line to the rear, extrude 16mm
    G92 E0                                                 ; Zero the extruder

    SET_GCODE_VARIABLE MACRO=PRINT_START VARIABLE=pre_home_on_wipe VALUE={0}
    WIPE_NOZZLE