AI3M Nozzle Brush (Klipper macro + instruction)

Dmitry made a great model and supplied the Marco code for Klipper. I just made it work for the AI3M bed!

For macro setup, look back at Dmitry post.

Note: You may need to take off the bed to get it on. 

[gcode_macro WIPE]
description: Wipe nozzle on silicone comb (center-based + zigzag)

# Comb parameters
variable_comb_x: 100.     ; X center of the comb
variable_comb_y: 223.       ; Y center of the comb
variable_comb_z: 4.00   ; Z when touching the comb

# General parameters
variable_comb_z_lift: 5.0     ; Nozzle lift before/after wiping
variable_comb_width: 40.0     ; Full width of the comb (mm)
variable_comb_cycles_1: 4     ; Number of cycles in the first pass
variable_comb_cycles_2: 3     ; Number of zigzags in the second pass
variable_comb_offset_y: 1.0   ; Y offset for the second pass
variable_comb_zigzag_shift: 1.5 ; X shift for each zigzag step

# Return to specified position
variable_return_x: 100.0
variable_return_y: 20.0

gcode:
    {% set half_width = comb_width / 2 %}
    {% set zigzag_shift = comb_zigzag_shift %}

    G90 ; Absolute coordinates
    G1 Z{comb_z_lift} F3000 ; Lift nozzle before moving
    G1 X{comb_x} Y{comb_y} F6000 ; Center of the comb
    G1 Z{comb_z} F3000 ; Contact with the comb

    ; First straight pass
    G91 ; Relative coordinates
    {% for i in range(comb_cycles_1) %}
        G1 X{half_width} F4500
        G1 X-{half_width * 2} F4500
        G1 X{half_width} F4500
    {% endfor %}

    ; Lift slightly and move Y offset
    G1 Z0.3 Y{comb_offset_y} F3000

    ; Second pass — zigzag along X with a slight shift
    {% for i in range(comb_cycles_2) %}
        G1 X{half_width + (zigzag_shift * i)} F4500
        G1 X-{(half_width + (zigzag_shift * i)) * 2} F4500
        G1 X{half_width + (zigzag_shift * i)} F4500
    {% endfor %}

    ; Lift and return
    G90
    G1 Z{comb_z_lift} F3000
    G1 X{return_x} Y{return_y} F6000
    G4 P500