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Klipper Configuration

ALPS Example Configuration Files​

  • Reference configuration using the BL-Touch port
  • Other mainboards are configured similarly 
    [output_pin _probe_ready]
    pin: SHT36:gpio24
    shutdown_value: 0
    value:0

    [probe]
    pin: ^SHT36:gpio22
    x_offset: 0                  # X-axis - Sensor offset relative to the nozzle
    y_offset: 0                  # Y-axis - Sensor offset relative to the nozzle
    z_offset:0                   # Z-axis - Sensor offset relative to the nozzle
    speed: 8                     # Leveling speed
    samples: 2                   # Number of samples
    samples_result: median       # Sampling method (default: median)
    sample_retract_dist: 2       # Leveling retraction distance
    samples_tolerance: 0.05      # Sampling tolerance (Note: too small a value may increase the number of samples)
    samples_tolerance_retries: 3 # Number of retries for exceeding tolerance
    activate_gcode:
            G4 P500
            SET_PIN PIN=_probe_ready VALUE=1
    deactivate_gcode:
            SET_PIN PIN=_probe_ready VALUE=0

Homing Reference Configuration​

The following is the recommended configuration file content. Please adjust it according to your actual needs:

Tip
  • If you need to use the ALPS pressure module as the Z limit switch, refer to the configuration below.
[stepper_z]
endstop_pin: probe:z_virtual_endstop
# position_endstop: -0.5
Tip
  • ALPS Pressure Module Reference Configuration
[homing_override]
axes: xyz
set_position_z: 10
gcode:
    {% set home_all = 'X' not in params and 'Y' not in params and 'Z' not in params %}
    {% set e_target = printer.extruder.target %} # Save current temperature
    {% set fan_speed = printer.fan.speed %}      # Save current fan speed
    
    {% if home_all or 'X' in params %}
        G28 X
    {% endif %}

    {% if home_all or 'Y' in params %}
        G28 Y
    {% endif %}

    {% if home_all or 'Z' in params %}
        G0 X{printer.toolhead.axis_maximum.x / 2} Y{printer.toolhead.axis_maximum.y / 2} F6000
        {% if e_target >= 150 or printer.extruder.temperature >= 150 %}
            M106 S255 # Turn on the fan
            M109 S150 # Ensure homing Z at 150°C
        {% endif %}
        M106 S0       # Turn off the fan

        G91
        G1 Z5 F2000 # Prevent the nozzle from being too close to the bed; lift it in advance
        G90

        # If using eddy current plus pressure sensor simultaneously, uncomment the following lines
        #SET_PIN PIN=_probe_ready VALUE=1 
        G28 Z 
        #SET_PIN PIN=_probe_ready VALUE=0
        G1 Z10 F2000
        
        M109 S{e_target}  # Restore temperature
        M106 S{fan_speed} # Restore fan speed
    {% endif %}
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