klipper-macros/macros/print/print_start_end.cfg

# Print start and end: PRINT_WARMUP, PRINT_START, PRINT_END

#   Idle time (in seconds) to wait before running the above G-Code
#   commands. The default is 600 seconds.

#####################################################################
#   Macros
#####################################################################

# [gcode_macro PRINT_START]
# gcode:
#     PRINT_WARMUP BED={params.BED} EXTRUDER={params.EXTRUDER} CHAMBER={params.CHAMBER|default("0")} TOOL={params.TOOL|default("0")}
#     PRINT_START_2 EXTRUDER={params.EXTRUDER}

[gcode_macro PRINT_WARMUP]
description: Perform initial homing and heating tasks
gcode:
    {% set target_bed = params.BED|int %}
    {% set target_extruder = params.EXTRUDER|int %}
    {% set target_chamber = params.CHAMBER|default("0")|int %}
    # {% set x_wait = printer.toolhead.axis_maximum.x|float / 2 %}
    # {% set y_wait = printer.toolhead.axis_maximum.y|float / 2 %}    
    {% set initial_tool = params.TOOL|default("0")|int %}
    
    {% set chamber_temp = printer["temperature_sensor chamber"].temperature|float %}

    RESET_FAILURE
	  CLEAR_PAUSE

    _motion_detected

    #SET_PIN PIN=caselight VALUE=1.00
    UPDATE_DELAYED_GCODE ID=_delayed_motors_off DURATION=0
  
    BED_MESH_CLEAR
    SET_GCODE_OFFSET Z=0

    CLEAR_PAUSE

    SKEW_PROFILE LOAD=Califlower
    
    {% set current_temp = printer.extruder.temperature %}
    {% if current_temp > 150 %}
      RESPOND MSG="nozzle to hot, lowering to 150"
    M104 S150       ; set nozzle temp to 150
    M109 S150       ; wait until nozzle reaches 150  ; wait until nozzle reaches 0
    {% endif %}

    _status_homing
    RESPOND MSG="homing"
    HOME
    RESPOND MSG="homing finished"
    # G0 Z2   ; position beacon at 2mm for heat soak

    {% if target_bed < 60 %}
      RESPOND MSG="Using PID for <60°C bed"
      SET_HEATER_TEMPERATURE HEATER=heater_bed TARGET={target_bed} PID_KP=33.606 PID_KI=0.694 PID_KD=407.058
    {% else %}
      RESPOND MSG="Using PID for ≥60°C bed"
      SET_HEATER_TEMPERATURE HEATER=heater_bed TARGET={target_bed} pid_Kp=46.843 pid_Ki=2.002 pid_Kd=274.034
    {% endif %}
    
    G1 X175 Y175 Z2 F1200
    _status_heating
    RESPOND MSG="heating"
    {% if target_bed > 0 %}
      M140 S{target_bed}     ; start bed heater
    M104 S150       ; set nozzle temp to 150
    M109 S150       ; wait until nozzle reaches 150  ; wait until nozzle reaches 0
      M190 S{target_bed}     ; wait on bed temperature
    {% endif %}

    HOME    
    QUAD_GANTRY_LEVEL
    BLOBIFIER_CLEAN     ; call another macro to wipe nozzle if available
    G1 X175 Y175 Z5 F1200
    
    _HEAT_FOR_LOADED_LANE TOOL={initial_tool}   ; unload needs the loaded filament's temperature
    T{initial_tool} #PURGE_LENGTH=100 #Load Initial Tool
    M104 S{target_extruder}                    ; set extruder to print temp
    M109 S{target_extruder}                    ; wait for extruder temp
    _NOZZLE_RETRACT LENGTH=2                   ; no oozing while waiting; PRINT_START pushes it back
    
    M104 S150       ; set nozzle temp to 150
    M109 S150       ; wait until nozzle reaches 150  ; wait until nozzle reaches 0
    
    BLOBIFIER_CLEAN     ; call another macro to wipe nozzle if available
    
    G1 X175 Y175 Z5 F1200
    {% if target_chamber > 30 %}
      RESPOND MSG="waiting for chamber temperature"      
      M141 S{target_chamber}  
      # M191 S{target_chamber}  ; Waits until the chamber temperature reaches 60°C
      # TEMPERATURE_WAIT SENSOR="temperature_sensor chamber" MINIMUM={target_chamber}

      M106 S255
      # HEAT_SOAK HEATER='heater_bed' TARGET={BED_TEMP} SOAKER='temperature_sensor iHeater_S' SOAK_TEMP={target_chamber} TIMEOUT=60 CANCEL='_NOTHING'
      HEAT_SOAK HEATER='heater_bed' TARGET={target_bed} SOAKER='temperature_sensor chamber' SOAK_TEMP={target_chamber} TIMEOUT=60 CANCEL='_NOTHING'
      # (CANCEL='_NOTHING') and having unreachable SOAK_TEMP makes it run till the TIMEOUT and continue without canceling the print.
    {% else %}
      RESPOND MSG="waiting for bed core temperature"     
      
      HEAT_SOAK HEATER='heater_bed' TARGET={target_bed} SOAKER='temperature_sensor bed_core' SOAK_TEMP={target_bed - 5} TIMEOUT=30 CANCEL='_NOTHING'
      # (CANCEL='_NOTHING') and having unreachable SOAK_TEMP makes it run till the TIMEOUT and continue without canceling the print. 
    {% endif %}

# AFC heats for a tool change from the print file's per-tool temperatures.
# When the loaded lane's tool number is not in that list (for example lane5 =
# T4 loaded, single-colour print with only T0), AFC does not heat at all and
# the unload fails below min_extrude_temp. Heat for the loaded filament first.
[gcode_macro _HEAT_FOR_LOADED_LANE]
description: Heat to the loaded lane's filament temperature before changing to another tool
gcode:
    {% set tool = 'T' ~ params.TOOL|default(0)|int %}
    {% set cur = printer.AFC.current_load %}
    {% if cur and ('AFC_stepper ' ~ cur) in printer %}
        {% set lane = printer['AFC_stepper ' ~ cur] %}
        {% if lane.map != tool %}
            {% set min_temp = printer.configfile.settings.extruder.min_extrude_temp|int + 20 %}
            {% set temp = [lane.extruder_temp|default(0, true)|int, min_temp]|max %}
            RESPOND MSG="Heating to {temp}C to unload {cur} ({lane.material}) before {tool}"
            M109 S{temp}
        {% endif %}
    {% endif %}

[gcode_macro _NOTHING]
gcode:
  RESUME_BASE

[gcode_macro PRINT_START]
gcode:
    RESPOND MSG="print start macro continued"

    _motion_detected

    {% set target_extruder = params.EXTRUDER|int %}

    M106 S0

    M104 S150       ; set nozzle temp to 150
    M109 S150       ; wait until nozzle reaches 150  ; wait until nozzle reaches 0

    HOME    
    BLOBIFIER_CLEAN     ; call another macro to wipe nozzle if available

    _status_calibrating_z
    G28 Z METHOD=CONTACT CALIBRATE=1    ; calibrate z offset and beacon model hot
    
    _status_leveling
    RESPOND MSG="quad ganrty level"
    QUAD_GANTRY_LEVEL
    
    _status_meshing
    RESPOND MSG="meshing"
    BED_MESH_CALIBRATE RUNS=2           ; bed mesh in scan mode

    BLOBIFIER_CLEAN     ; call another macro to wipe nozzle if available
    
    M104 S150       ; set nozzle temp to 150
    M109 S150       ; wait until nozzle reaches 150  ; wait until nozzle reaches 0
    
    _status_calibrating_z
    G28 Z METHOD=CONTACT CALIBRATE=1    ; calibrate z offset and beacon model hot
    
    _status_heating
    M104 S{target_extruder}                    ; set extruder to print temp
    M109 S{target_extruder}                    ; wait for extruder temp
    BLOBIFIER_PARK                             ; over the bucket, then undo the retracts
    _NOZZLE_UNRETRACT                          ; of PRINT_WARMUP and the previous PRINT_END
    
    #                             ; needs fine tuning, long meltzones require more
    # SET_GCODE_OFFSET Z_ADJUST={OFFSET}  ; apply optional material squish via slicer
    #SET_GCODE_OFFSET Z=-0.06     ; squish
    # SET_GCODE_OFFSET Z=0.02     ; squish # worked before but a bit to high now
    # SET_GCODE_OFFSET Z=-0.05     ; squish
    SET_GCODE_OFFSET Z=-0.00     ; squish
    
    RESPOND MSG="starting"
    ;PRIME_NOZZLE    ; call another macro to purge or prime nozzle
    # WIPE_NOZZLE     ; call another macro to wipe nozzle if available
    # Line_Purge
    # AFC_POOP PURGE_LENGTH=100
    # AFC_KICK
    
    BLOBIFIER_CLEAN

    PA_CALIBRATE_ALL_LANES LANES="lane1,lane2,lane3,lane4,lane5"

    M104 S{target_extruder}                    ; set extruder to print temp
    M109 S{target_extruder}                    ; wait for extruder temp
    
    BLOBIFIER_CLEAN
    
    ; start printing
    
    G90                            ; absolute positioning
    G1 Z20 F30000                   ; move nozzle away from bed
    G1 X175 Y175 F30000                   ; move nozzle away from bed
    
    G28 XYZ    
    
    #G11 ; unretract

    _AFC_STORE_HOME_REFERENCE

    # Width only (flow compensation and runout when no filament is measured).
    # The CCD motion reading stays at 0 (actual_total_move:0), so motion mode
    # (ENABLE_MOTION / ENABLE_ALL) only gives false "Rounout" messages.
    SET_BDWIDTH NAME=fila_width_0 COMMAND=ENABLE_WIDTH
    
    _status_printing


[gcode_macro PRINT_END]
#   Use PRINT_END for the slicer ending script - please customise for your slicer of choice
gcode:
    # safe anti-stringing move coords
    {% set th = printer.toolhead %}
    {% set x_safe = th.position.x + 20 * (1 if th.axis_maximum.x - th.position.x > 20 else -1) %}
    {% set y_safe = th.position.y + 20 * (1 if th.axis_maximum.y - th.position.y > 20 else -1) %}
    {% set z_safe = [th.position.z + 2, th.axis_maximum.z]|min %}
    
    SAVE_GCODE_STATE NAME=STATE_PRINT_END

    _motion_detected

    M400                           ; wait for buffer to clear
    G92 E0                         ; zero the extruder
    _NOZZLE_RETRACT                ; so the nozzle does not leak while cooling down
    
    TURN_OFF_HEATERS
    iHEATER_OFF   ; Turns off the chamber heater
    
    G90                                      ; absolute positioning
    G0 X{x_safe} Y{y_safe} Z{z_safe} F20000  ; move nozzle to remove stringing
    G0 X{th.axis_maximum.x//2} Y{th.axis_maximum.y - 5} F3600  ; park nozzle at rear
    M107                                     ; turn off fan

    #SET_PIN PIN=caselight VALUE=0.03
    _status_part_ready

    UPDATE_DELAYED_GCODE ID=_delayed_motors_off DURATION=3600

    RESTORE_GCODE_STATE NAME=STATE_PRINT_END
    # After the restore: RESTORE_GCODE_STATE also restores the flow (M221)
    _PRINT_CLEANUP

# End-of-print cleanup shared by PRINT_END and CANCEL_PRINT
[gcode_macro _PRINT_CLEANUP]
description: Heaters (incl. chamber heater) and part fan off, flow back to 100%, bdwidth off, mesh and skew cleared
gcode:
    TURN_OFF_HEATERS
    iHEATER_OFF                                     ; stops the chamber heater control loop too
    M107
    SET_BDWIDTH NAME=fila_width_0 COMMAND=DISABLE   ; also sets M221 S100
    M221 S100
    BED_MESH_CLEAR
    SET_SKEW CLEAR=1

# Retract/unretract that is remembered across prints and restarts.
# Klipper's G10 only retracts once until a G11, and nothing sends G11 here,
# so G10 in PRINT_WARMUP used up the retract and PRINT_END's G10 did nothing.
# _NOZZLE_RETRACT adds to the saved variable nozzle_retract, _NOZZLE_UNRETRACT
# extrudes that amount again (over the bucket, in PRINT_START) and clears it.
[gcode_macro _NOZZLE_RETRACT]
description: Retract LENGTH mm (default variable_length) and remember it for _NOZZLE_UNRETRACT; EXTRA=mm already retracted elsewhere, only remembered
variable_length: 5.0           # end-of-print retract; more stops leaking, too much can jam (PLA/heat creep)
variable_max_total: 15.0       # never remember more than this in total
gcode:
    {% set length = params.LENGTH|default(length)|float %}
    {% set extra = params.EXTRA|default(0)|float %}
    {% set done = printer.save_variables.variables.nozzle_retract|default(0)|float %}
    {% set length = [length, max_total - done - extra]|min %}
    {% if length > 0 and printer.extruder.can_extrude %}
        SAVE_GCODE_STATE NAME=_nozzle_retract
        M83
        G1 E-{length} F1800
        RESTORE_GCODE_STATE NAME=_nozzle_retract
    {% else %}
        {% set length = 0 %}
    {% endif %}
    {% if length + extra > 0 %}
        SAVE_VARIABLE VARIABLE=nozzle_retract VALUE={[done + extra + length, max_total]|min}
    {% endif %}

[gcode_macro _NOZZLE_UNRETRACT]
description: Extrude what _NOZZLE_RETRACT retracted (call over the bucket, nozzle hot)
gcode:
    {% set done = printer.save_variables.variables.nozzle_retract|default(0)|float %}
    {% if done > 0 %}
        {% if printer.extruder.can_extrude %}
            SAVE_GCODE_STATE NAME=_nozzle_unretract
            M83
            G1 E{done} F300
            RESTORE_GCODE_STATE NAME=_nozzle_unretract
            SAVE_VARIABLE VARIABLE=nozzle_retract VALUE=0
        {% else %}
            RESPOND TYPE=error MSG="_NOZZLE_UNRETRACT: extruder too cold, {done} mm still retracted"
        {% endif %}
    {% endif %}

[delayed_gcode _delayed_motors_off]
gcode:
  M84