Macro Introduction

Start Macro

• Set PRINT_START as the macro when starting print, customize actions before printing
• Note that the macro name can be customized as long as it is referenced in the start slicing code

[gcode_macro PRINT_START]
gcode:
    G92 E0                         # Reset extruder
    BED_MESH_CLEAR                 # Unload bed mesh
    G28                            # Home all axes
    #Z_TILT_ADJUST                 # Gantries leveling
    #quad_gantry_level             # Gantries leveling
    #G28                           # Home all axes
    G1 Z20 F3000                   # Move nozzle away from heated bed
    BED_MESH_PROFILE LOAD=default  # Load bed mesh

Leveling and Bed Mesh Configuration Guide

I. Leveling Method Selection

• Z_TILT_ADJUST and quad_gantry_level are mutually exclusive leveling solutions
• Please choose one according to the equipment architecture, do not use both simultaneously
• Delete or comment out the corresponding configuration if not needed
• It is recommended to home the axes once after completing leveling

II. Bed Mesh Configuration Standards

BED_MESH_PROFILE LOAD=default

• Only a single bed mesh configuration can be loaded, multiple configurations cannot be enabled simultaneously
• In BED_MESH_PROFILE LOAD=default, default is the preset configuration name
• Errors may occur if no bed mesh has been created or if it is named differently

III. Standard Bed Mesh Calibration Command

BED_MESH_CALIBRATE horizontal_move_z=2 METHOD=rapid_scan

• horizontal_move_z=2: Nozzle lift height during calibration (unit: mm)
• METHOD=rapid_scan: Use fast scanning calibration method

IV. Adaptive Calibration Command

BED_MESH_CALIBRATE adaptive=1

• Simplified command specifically designed for auto-leveling sensors
• Applicable for sensor systems such as TAP, klicky, PL08
• Probe height and movement are automatically controlled by the sensor, no manual parameters required

End Macro

• Set PRINT_END as the macro when ending print, customize actions after printing
• Note that the macro name can be customized as long as it is referenced in the end slicing code

[gcode_macro PRINT_END]
gcode:
    #   Get Boundaries
    {% set max_x = printer.configfile.config["stepper_x"]["position_max"]|float %}
    {% set max_y = printer.configfile.config["stepper_y"]["position_max"]|float %}
    {% set max_z = printer.configfile.config["stepper_z"]["position_max"]|float %}
    
    #   Check end position to determine safe directions to move
    {% if printer.toolhead.position.x < (max_x - 20) %}
        {% set x_safe = 20.0 %}
    {% else %}
        {% set x_safe = -20.0 %}
    {% endif %}

    {% if printer.toolhead.position.y < (max_y - 20) %}
        {% set y_safe = 20.0 %}
    {% else %}
        {% set y_safe = -20.0 %}
    {% endif %}

    {% if printer.toolhead.position.z < (max_z - 2) %}
        {% set z_safe = 2.0 %}
    {% else %}
        {% set z_safe = max_z - printer.toolhead.position.z %}
    {% endif %}

    M400                              # Wait for buffer to clear
    G92 E0                            # Reset extruder
    G1 E-10.0 F3600                   # Retract filament
    G91                               # Relative positioning
    G0 Z{z_safe} F3600                # Raise gantry
    G0 X{x_safe} Y{y_safe} F20000     # Move nozzle to remove stringing
    M104 S0                           # Turn off extruder
    M140 S0                           # Turn off heated bed
    M106 S0                           # Turn off model fan
    G90                               # Set absolute positioning
    G0 X{max_x / 2} Y{max_y} F3600    # Park nozzle at the back
    BED_MESH_CLEAR                    # Unload bed mesh

Slicer Macro Settings

Example: PrusaSlicer

• Select Printer
• Change Beginner mode to Expert mode at the top right corner
• Finally select Custom G-code
  
• If Start G-code appears, proceed to the next step
  

Example: OrcaSlicer

• Click on the icon at the top left
  
• Click Machine G-code, if Machine start G-code appears, you can proceed to the next step