adaptive_mesh.cfg

# # # Klipper Adaptive Meshing # # #

# Heads up! If you have any other BED_MESH_CALIBRATE macros defined elsewhere in your config, you will need to comment out / remove them for this to work. (Klicky/Euclid Probe)
# You will also need to be sure that [exclude_object] is defined in printer.cfg, and your slicer is labeling objects.
# This macro will parse information from objects in your gcode to define a min and max mesh area to probe, creating an adaptive mesh!
# This macro will not increase probe_count values in your [bed_mesh] config. If you want richer meshes, be sure to increase probe_count. We recommend at least 5,5.

[gcode_macro BED_MESH_CALIBRATE]
rename_existing: _BED_MESH_CALIBRATE

### This section allows control of status LEDs your printer may have.

variable_led_enable: False              # Enables/disables the use of status LEDs in this macro.
variable_status_macro: 'status_meshing' # If you have status LEDs in your printer (StealthBurner), you can use the macro that changes their status here.

### This section configures mesh point fuzzing, which allows probe points to be varied slightly if printing multiples of the same G-code file.

variable_fuzz_enable: False             # Enables/disables the use of mesh point fuzzing to slightly randomize probing points to spread out wear on a build surface, default is False.
variable_fuzz_min: 0                    # If enabled, the minimum amount in mm a probe point can be randomized, default is 0.
variable_fuzz_max: 4                    # If enabled, the maximum amount in mm a probe point can be randomized, default is 4.

### This section is for those using a dockable probe that is stored outside of the print area. ###

variable_probe_dock_enable: False       # Enables/disables the use of a dockable probe that is stored outside of the print area, default is False.
variable_attach_macro: 'Attach_Probe'   # Here is where you define the macro that ATTACHES the probe to the printhead. E.g. 'Attach_Probe'
variable_detach_macro: 'Dock_Probe'     # Here is where you define the macro that DETACHES the probe from the printhead. E.g. 'Dock_Probe'

gcode:
    {% set all_points = printer.exclude_object.objects | map(attribute='polygon') | sum(start=[]) %}
    {% set bed_mesh_min = printer.configfile.settings.bed_mesh.mesh_min %}
    {% set bed_mesh_max = printer.configfile.settings.bed_mesh.mesh_max %}
    {% set probe_count = printer.configfile.settings.bed_mesh.probe_count %}
    {% set probe_count = probe_count if probe_count|length > 1 else probe_count * 2  %}
    {% set max_probe_point_distance_x = ( bed_mesh_max[0] - bed_mesh_min[0] ) / (probe_count[0] - 1)  %}
    {% set max_probe_point_distance_y = ( bed_mesh_max[1] - bed_mesh_min[1] ) / (probe_count[1] - 1)  %}
    {% set x_min = all_points | map(attribute=0) | min | default(bed_mesh_min[0]) %}
    {% set y_min = all_points | map(attribute=1) | min | default(bed_mesh_min[1]) %}
    {% set x_max = all_points | map(attribute=0) | max | default(bed_mesh_max[0]) %}
    {% set y_max = all_points | map(attribute=1) | max | default(bed_mesh_max[1]) %}
    
    { action_respond_info("{} object points, clamping to bed mesh [{!r} {!r}]".format(
        all_points | count,
        bed_mesh_min,
        bed_mesh_max,
    )) }

    {% if fuzz_enable == True %}
        {% set fuzz_range = range(fuzz_min * 100 | int, fuzz_max * 100 | int + 1) %}
        {% set x_min = (bed_mesh_min[0] + fuzz_max, x_min) | max - (fuzz_range | random / 100.0) %}
        {% set y_min = (bed_mesh_min[1] + fuzz_max, y_min) | max - (fuzz_range | random / 100.0) %}
        {% set x_max = (bed_mesh_max[0] - fuzz_max, x_max) | min + (fuzz_range | random / 100.0) %}
        {% set y_max = (bed_mesh_max[1] - fuzz_max, y_max) | min + (fuzz_range | random / 100.0) %}
    {% else %}
        {% set x_min = [ bed_mesh_min[0], x_min ] | max %}
        {% set y_min = [ bed_mesh_min[1], y_min ] | max %}
        {% set x_max = [ bed_mesh_max[0], x_max ] | min %}
        {% set y_max = [ bed_mesh_max[1], y_max ] | min %}
    {% endif %}
   
    { action_respond_info("Object bounds, clamped to the bed_mesh: {!r}, {!r}".format(
        (x_min, y_min), 
        (x_max, y_max),
    )) }
    
    {% set points_x = (((x_max - x_min) / max_probe_point_distance_x) | round(method='ceil') | int) + 1 %}
    {% set points_y = (((y_max - y_min) / max_probe_point_distance_y) | round(method='ceil') | int) + 1 %}
    
    {% if (([points_x, points_y]|max) > 6) %}
        {% set algorithm = "bicubic" %}
        {% set min_points = 4 %}
    {% else %}
        {% set algorithm = "lagrange" %}
        {% set min_points = 3 %}
    {% endif %}
    { action_respond_info( "Algorithm: {}".format(algorithm)) }
    
    {% set points_x = [points_x, min_points]|max  %}
    {% set points_y = [points_y, min_points]|max  %}
    { action_respond_info( "Points: x: {}, y: {}".format(points_x, points_y) ) }

    {% if printer.configfile.settings.bed_mesh.relative_reference_index is defined %}
        {% set ref_index = (points_x * points_y / 2) | int %}
        { action_respond_info( "Reference index: {}".format(ref_index) ) }  
    {% else %}
        {% set ref_index = -1 %}
    {% endif %}

    {% if probe_dock_enable == True %}
        {attach_macro}              # Attach/deploy a probe if the probe is stored somewhere outside of the print area
    {% endif %}

    {% if led_enable == True %}
        {status_macro}              # Set status LEDs
    {% endif %}

    _BED_MESH_CALIBRATE mesh_min={x_min},{y_min} mesh_max={x_max},{y_max} ALGORITHM={algorithm} PROBE_COUNT={points_x},{points_y} RELATIVE_REFERENCE_INDEX={ref_index}

    {% if probe_dock_enable == True %}
        {detach_macro}              # Detach/stow a probe if the probe is stored somewhere outside of the print area
    {% endif %}