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Advanced Commands and System Operations

This article collects common debugging commands for extrusion, motion control, bed mesh, resonance compensation, system control, and special module types.

For basic debugging commands related to drivers, heating, endstops, and probes, please refer to Common Debugging Commands.

Manual Extrude/Retract​

G91                                     # Switch to relative positioning mode
G1 E10 F300                             # Extrude 10mm at 300mm/min
G1 E-10 F300                            # Retract 10mm
G90                                     # Switch back to absolute positioning mode

Filament Sensor​

QUERY_FILAMENT_SENSOR SENSOR=filament_sensor   # Query filament runout detection status

Pressure Advance Calibration​

TUNING_TOWER COMMAND=SET_PRESSURE_ADVANCE PARAMETER=ADVANCE START=0 FACTOR=.005
  • Save after calibration:
SET_PRESSURE_ADVANCE ADVANCE=0.05       # Set pressure advance value
SAVE_CONFIG                             # Save to configuration

Motion Control​

Basic Movement Commands​

G90                                     # Absolute positioning mode
G91                                     # Relative positioning mode
G1 X100 Y100 Z20 F6000                  # Move to specified coordinates
G28                                     # Home all axes
G28 X                                   # Home X axis only
G28 Y                                   # Home Y axis only
G28 Z                                   # Home Z axis only

Direction Verification After Homing​

G90
G1 X10 Y10 Z20 F3000                    # Move towards minimum direction
G1 X150 Y150 Z20 F3000                  # Move towards maximum direction

Motor Control​

M84                                     # Release all motors (disable)
M84 X Y                                 # Release X and Y axis motors only
M18                                     # Equivalent to M84, disable all motors
M17                                     # Re-enable all motors

Manual Stepper Control​

MANUAL_STEPPER STEPPER=stepper_x ENABLE=1 SPEED=10 MOVE=10     # Move X axis 10mm in positive direction
MANUAL_STEPPER STEPPER=stepper_x ENABLE=1 SPEED=10 MOVE=-10    # Move X axis 10mm in negative direction

Bed Mesh​

Bed Mesh Probing​

BED_MESH_CALIBRATE                                  # Full bed mesh probing
BED_MESH_CALIBRATE horizontal_move_z=2 METHOD=rapid_scan  # Fast scan mode
BED_MESH_CALIBRATE ADAPTIVE=1                       # Adaptive probing (probe only the print area)

Bed Mesh Management​

BED_MESH_PROFILE SAVE=default                       # Save bed mesh as default
BED_MESH_PROFILE LOAD=default                       # Load default bed mesh
BED_MESH_PROFILE REMOVE=default                     # Delete default bed mesh
BED_MESH_CLEAR                                      # Unload current bed mesh
BED_MESH_OUTPUT                                     # Output bed mesh data to console

Z Tilt Adjustment​

Z_TILT_ADJUST                                       # Z tilt adjustment (dual Z / triple Z)
QUAD_GANTRY_LEVEL                                   # Quad gantry leveling (Voron, etc.)

Resonance Compensation​

Accelerometer​

ACCELEROMETER_QUERY                                 # Query accelerometer status

Resonance Test​

TEST_RESONANCES AXIS=X                              # X axis resonance test
TEST_RESONANCES AXIS=Y                              # Y axis resonance test
SHAPER_CALIBRATE AXIS=X                             # X axis input shaper auto calibration
SHAPER_CALIBRATE AXIS=Y                             # Y axis input shaper auto calibration
  • Save after calibration:
SAVE_CONFIG                                         # Save resonance compensation results

System Control​

Firmware Restart​

RESTART                                             # Reload Klipper host firmware
FIRMWARE_RESTART                                    # Full restart (MCU reset)

Status View​

STATUS                                              # View printer current status
M115                                                # View firmware version information

Emergency Stop​

M112                                                # Emergency stop (immediately stop all actions)
M999                                                # Clear emergency stop state

Configuration File Operations​

SAVE_CONFIG                                         # Save calibration results to printer.cfg
Note

The configuration written by SAVE_CONFIG is located in the #*# DO NOT EDIT THIS BLOCK comment block at the bottom of the file. These values will take effect after the next restart.

Special Types​

Servo​

Tip

Servos are divided into 180° and 360° types; please pay attention to the distinction.

  • Reference configuration:

    [servo my_servo]
    pin: <servo_pin>

  • Reference commands:

    SET_SERVO SERVO=my_servo ANGLE=360
    SET_SERVO SERVO=my_servo ANGLE=180
    SET_SERVO SERVO=my_servo ANGLE=0

LED / Neopixel​

SET_LED LED=my_neopixel RED=1 GREEN=0 BLUE=0       # Set to red
SET_LED LED=my_neopixel RED=0 GREEN=0 BLUE=0       # Turn off
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