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Macro Introduction

Start Macro​

  • Set PRINT_START as the macro for the start of printing to customize actions before printing.
  • Note: The macro name can be customized, as long as it is referenced in the slicer's start code.
[gcode_macro PRINT_START]
gcode:
    G92 E0                         # Reset extruder
    BED_MESH_CLEAR                 # Clear bed mesh
    G28                            # Home all axes
    #Z_TILT_ADJUST                 # Z-tilt adjust
    #quad_gantry_level             # Quad gantry leveling
    #G28                           # Home all axes
    G1 Z20 F3000                   # Move nozzle away from bed
    BED_MESH_PROFILE LOAD=default  # Load bed mesh

Leveling and Bed Mesh Configuration Guide​

1. Leveling Method Selection​

  • Z_TILT_ADJUST and quad_gantry_level are mutually exclusive leveling solutions.
  • Choose one based on your device architecture; they cannot be used simultaneously.
  • If not present, delete or comment out the corresponding configuration.
  • It is recommended to home once after performing leveling.

2. Bed Mesh Configuration Specification​

BED_MESH_PROFILE LOAD=default
  • Only a single bed mesh configuration can be loaded; multiple configurations cannot be enabled at the same time.
  • In BED_MESH_PROFILE LOAD=default, default is the preset configuration name.
  • If no bed mesh has been created in advance or if it is named differently, an error may occur.

3. Standard Bed Mesh Probing Command​

BED_MESH_CALIBRATE horizontal_move_z=2 METHOD=rapid_scan
  • horizontal_move_z=2: Nozzle lift height during probing (unit: mm).
  • METHOD=rapid_scan: Use rapid scan probing method.

4. Adaptive Probing Command​

BED_MESH_CALIBRATE adaptive=1
  • Simplified command specifically designed for auto-leveling sensors.
  • Suitable for sensor systems like TAP, klicky, PL08, etc.
  • Probing height and movement method are automatically controlled by the sensor; no manual parameters needed.

End Macro​

  • Set PRINT_END as the macro for the end of printing to customize actions after printing.
  • Note: The macro name can be customized, as long as it is referenced in the slicer's end 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                            # Zero the 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 hotend
    M140 S0                           # Turn off heatbed
    M106 S0                           # Turn off part cooling fan
    G90                               # Set to absolute positioning
    G0 X{max_x / 2} Y{max_y} F3600    # Park nozzle at the rear
    BED_MESH_CLEAR                    # Clear bed mesh

Slicer Macro Settings​

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