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Multi-Z Reference Configuration

Dual Z with Single Endstop​

  • No need to add endstop_pin: in the second Z configuration

    [stepper_z]
    step_pin: PA5
    dir_pin: PA4
    enable_pin: !PA6
    rotation_distance: 4
    full_steps_per_rotation: 200
    microsteps: 16
    endstop_pin: ^!PA9
    position_endstop: 0
    position_max: 300
    homing_speed: 50
    homing_retract_dist: 5

    [stepper_z1]
    step_pin: PB10
    dir_pin:  PB2
    enable_pin: !PB11
    rotation_distance: 4
    full_steps_per_rotation: 200
    microsteps: 16

Dual Z with Dual Endstops​

  • Need to add endstop_pin: in the second Z configuration

    [stepper_z]
    step_pin: PA5
    dir_pin: PA4
    enable_pin: !PA6
    rotation_distance: 4
    full_steps_per_rotation: 200
    microsteps: 16
    endstop_pin: ^!PA9
    position_endstop: 0
    position_max: 300
    homing_speed: 50
    homing_retract_dist: 5


    [stepper_z1]
    step_pin: PB10
    dir_pin:  PB2
    enable_pin: !PB11
    rotation_distance: 4
    full_steps_per_rotation: 200
    microsteps: 16
    endstop_pin: ^!PA10

Dual Z Using Probe or BL Touch​

  • Modify the pin after endstop_pin: in the first Z configuration to probe:z_virtual_endstop

  • Need to configure the Probe or BL Touch

    [stepper_z]
    step_pin: PA5
    dir_pin: PA4
    enable_pin: !PA6
    rotation_distance: 4
    full_steps_per_rotation: 200
    microsteps: 16
    endstop_pin: probe:z_virtual_endstop  
    # position_endstop: 0
    position_max: 300
    homing_speed: 50
    homing_retract_dist: 5
    step_pulse_duration: 0.000004

    [stepper_z1]
    step_pin: PB10
    dir_pin:  PB2
    enable_pin: !PB11
    rotation_distance: 4
    full_steps_per_rotation: 200
    microsteps: 16

    [probe]
    pin: ^PB4                    # Signal interface
    x_offset: 0                  # X-axis - Sensor offset relative to nozzle
    y_offset: 0                  # Y-axis - Sensor offset relative to nozzle
    #z_offset: 0                 # Z-axis - Sensor offset relative to nozzle
    speed: 3.0                   # Leveling speed
    lift_speed: 5                # Probe lift speed
    samples: 3                   # Sampling count
    samples_result: median       # Sampling method (default median)
    sample_retract_dist: 3.0     # Leveling retract distance
    samples_tolerance: 0.075     # Sampling tolerance (note: too small value may increase sampling count)
    samples_tolerance_retries: 3 # Number of retries on tolerance exceeded
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