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# G-Codes
This document describes the commands that Klipper supports. These are
commands that one may enter into the OctoPrint terminal tab.
## G-Code commands
Klipper supports the following standard G-Code commands:
- Move (G0 or G1): `G1 [X<pos>] [Y<pos>] [Z<pos>] [E<pos>] [F<speed>]`
- Dwell: `G4 P<milliseconds>`
- Move to origin: `G28 [X] [Y] [Z]`
- Turn off motors: `M18` or `M84`
- Wait for current moves to finish: `M400`
- Use absolute/relative distances for extrusion: `M82`, `M83`
- Use absolute/relative coordinates: `G90`, `G91`
- Set position: `G92 [X<pos>] [Y<pos>] [Z<pos>] [E<pos>]`
- Set speed factor override percentage: `M220 S<percent>`
- Set extrude factor override percentage: `M221 S<percent>`
- Set acceleration: `M204 S<value>` OR `M204 P<value> T<value>`
- Note: If S is not specified and both P and T are specified, then
the acceleration is set to the minimum of P and T. If only one of
P or T is specified, the command has no effect.
- Get extruder temperature: `M105`
- Set extruder temperature: `M104 [T<index>] [S<temperature>]`
- Set extruder temperature and wait: `M109 [T<index>] S<temperature>`
- Note: M109 always waits for temperature to settle at requested
value
- Set bed temperature: `M140 [S<temperature>]`
- Set bed temperature and wait: `M190 S<temperature>`
- Note: M190 always waits for temperature to settle at requested
value
- Set fan speed: `M106 S<value>`
- Turn fan off: `M107`
- Emergency stop: `M112`
- Get current position: `M114`
- Get firmware version: `M115`
For further details on the above commands see the
[RepRap G-Code documentation](http://reprap.org/wiki/G-code).
Klipper's goal is to support the G-Code commands produced by common
3rd party software (eg, OctoPrint, Printrun, Slic3r, Cura, etc.) in
their standard configurations. It is not a goal to support every
possible G-Code command. Instead, Klipper prefers human readable
["extended G-Code commands"](#extended-g-code-commands).
If one requires a less common G-Code command then it may be possible
to implement it with a custom
[gcode_macro config section](Config_Reference.md#gcode_macro). For
example, one might use this to implement: `G12`, `G29`, `G30`, `G31`,
`M42`, `M80`, `M81`, `T1`, etc.
### G-Code SD card commands
Klipper also supports the following standard G-Code commands if the
[virtual_sdcard config section](Config_Reference.md#virtual_sdcard) is
enabled:
- List SD card: `M20`
- Initialize SD card: `M21`
- Select SD file: `M23 <filename>`
- Start/resume SD print: `M24`
- Pause SD print: `M25`
- Set SD position: `M26 S<offset>`
- Report SD print status: `M27`
In addition, the following extended commands are availble when the
"virtual_sdcard" config section is enabled.
- Load a file and start SD print: `SDCARD_PRINT_FILE FILENAME=<filename>`
- Unload file and clear SD state: `SDCARD_RESET_FILE`
### G-Code arcs
The following standard G-Code commands are available if a
[gcode_arcs config section](Config_Reference.md#gcode_arcs) is
enabled:
- Controlled Arc Move (G2 or G3): `G2 [X<pos>] [Y<pos>] [Z<pos>]
[E<pos>] [F<speed>] I<value> J<value>`
### G-Code firmware retraction
The following standard G-Code commands are available if a
[firmware_retraction config section](Config_Reference.md#firmware_retraction)
is enabled:
- Retract: `G10`
- Unretract: `G11`
### G-Code display commands
The following standard G-Code commands are available if a
[display config section](Config_Reference.md#display) is enabled:
- Display Message: `M117 <message>`
- Set build percentage: `M73 P<percent>`
### Other available G-Code commands
The following standard G-Code commands are currently available, but
using them is not recommended:
- Get Endstop Status: `M119` (Use QUERY_ENDSTOPS instead.)
## Extended G-Code Commands
Klipper uses "extended" G-Code commands for general configuration and
status. These extended commands all follow a similar format - they
start with a command name and may be followed by one or more
parameters. For example: `SET_SERVO SERVO=myservo ANGLE=5.3`. In this
document, the commands and parameters are shown in uppercase, however
they are not case sensitive. (So, "SET_SERVO" and "set_servo" both run
the same command.)
The following standard commands are supported:
- `QUERY_ENDSTOPS`: Probe the axis endstops and report if they are
"triggered" or in an "open" state. This command is typically used to
verify that an endstop is working correctly.
- `QUERY_ADC [NAME=<config_name>] [PULLUP=<value>]`: Report the last
analog value received for a configured analog pin. If NAME is not
provided, the list of available adc names are reported. If PULLUP is
provided (as a value in Ohms), the raw analog value along with the
equivalent resistance given that pullup is reported.
- `GET_POSITION`: Return information on the current location of the
toolhead.
- `SET_GCODE_OFFSET [X=<pos>|X_ADJUST=<adjust>]
[Y=<pos>|Y_ADJUST=<adjust>] [Z=<pos>|Z_ADJUST=<adjust>]
[MOVE=1 [MOVE_SPEED=<speed>]]`: Set a positional offset to apply to
future G-Code commands. This is commonly used to virtually change
the Z bed offset or to set nozzle XY offsets when switching
extruders. For example, if "SET_GCODE_OFFSET Z=0.2" is sent, then
future G-Code moves will have 0.2mm added to their Z height. If the
X_ADJUST style parameters are used, then the adjustment will be
added to any existing offset (eg, "SET_GCODE_OFFSET Z=-0.2" followed
by "SET_GCODE_OFFSET Z_ADJUST=0.3" would result in a total Z offset
of 0.1). If "MOVE=1" is specified then a toolhead move will be
issued to apply the given offset (otherwise the offset will take
effect on the next absolute G-Code move that specifies the given
axis). If "MOVE_SPEED" is specified then the toolhead move will be
performed with the given speed (in mm/s); otherwise the toolhead
move will use the last specified G-Code speed.
- `SAVE_GCODE_STATE [NAME=<state_name>]`: Save the current
g-code coordinate parsing state. Saving and restoring the g-code
state is useful in scripts and macros. This command saves the
current g-code absolute coordinate mode (G90/G91), absolute extrude
mode (M82/M83), origin (G92), offset (SET_GCODE_OFFSET), speed
override (M220), extruder override (M221), move speed, current XYZ
position, and relative extruder "E" position. If NAME is provided it
allows one to name the saved state to the given string. If NAME is
not provided it defaults to "default".
- `RESTORE_GCODE_STATE [NAME=<state_name>]
[MOVE=1 [MOVE_SPEED=<speed>]]`: Restore a state previously saved via
SAVE_GCODE_STATE. If "MOVE=1" is specified then a toolhead move will
be issued to move back to the previous XYZ position. If "MOVE_SPEED"
is specified then the toolhead move will be performed with the given
speed (in mm/s); otherwise the toolhead move will use the restored
g-code speed.
- `PID_CALIBRATE HEATER=<config_name> TARGET=<temperature>
[WRITE_FILE=1]`: Perform a PID calibration test. The specified
heater will be enabled until the specified target temperature is
reached, and then the heater will be turned off and on for several
cycles. If the WRITE_FILE parameter is enabled, then the file
/tmp/heattest.txt will be created with a log of all temperature
samples taken during the test.
- `TURN_OFF_HEATERS`: Turn off all heaters.
- `TEMPERATURE_WAIT SENSOR=<config_name> [MINIMUM=<target>] [MAXIMUM=<target>]`:
Wait until the given temperature sensor is at or above the supplied
MINIMUM and/or at or below the supplied MAXIMUM.
- `SET_VELOCITY_LIMIT [VELOCITY=<value>] [ACCEL=<value>]
[ACCEL_TO_DECEL=<value>] [SQUARE_CORNER_VELOCITY=<value>]`: Modify
the printer's velocity limits.
- `SET_HEATER_TEMPERATURE HEATER=<heater_name> [TARGET=<target_temperature>]`:
Sets the target temperature for a heater. If a target temperature is
not supplied, the target is 0.
- `ACTIVATE_EXTRUDER EXTRUDER=<config_name>`: In a printer with
multiple extruders this command is used to change the active
extruder.
- `SET_PRESSURE_ADVANCE [EXTRUDER=<config_name>] [ADVANCE=<pressure_advance>]
[SMOOTH_TIME=<pressure_advance_smooth_time>]`: Set pressure advance
parameters. If EXTRUDER is not specified, it defaults to the active
extruder.
- `SET_EXTRUDER_STEP_DISTANCE [EXTRUDER=<config_name>]
[DISTANCE=<distance>]`: Set a new value for the provided extruder's
"step distance". The "step distance" is
`rotation_distance/(full_steps_per_rotation*microsteps)`. Value is
not retained on Klipper reset. Use with caution, small changes can
result in excessive pressure between extruder and hot end. Do proper
calibration steps with filament before use. If 'DISTANCE' value is
not included command will return current step distance.
- `SET_STEPPER_ENABLE STEPPER=<config_name> ENABLE=[0|1]`: Enable or
disable only the given stepper. This is a diagnostic and debugging
tool and must be used with care. Disabling an axis motor does not
reset the homing information. Manually moving a disabled stepper may
cause the machine to operate the motor outside of safe limits. This
can lead to damage to axis components, hot ends, and print surface.
- `STEPPER_BUZZ STEPPER=<config_name>`: Move the given stepper forward
one mm and then backward one mm, repeated 10 times. This is a
diagnostic tool to help verify stepper connectivity.
- `MANUAL_PROBE [SPEED=<speed>]`: Run a helper script useful for
measuring the height of the nozzle at a given location. If SPEED is
specified, it sets the speed of TESTZ commands (the default is
5mm/s). During a manual probe, the following additional commands are
available:
- `ACCEPT`: This command accepts the current Z position and
concludes the manual probing tool.
- `ABORT`: This command terminates the manual probing tool.
- `TESTZ Z=<value>`: This command moves the nozzle up or down by the
amount specified in "value". For example, `TESTZ Z=-.1` would move
the nozzle down .1mm while `TESTZ Z=.1` would move the nozzle up
.1mm. The value may also be `+`, `-`, `++`, or `--` to move the
nozzle up or down an amount relative to previous attempts.
- `Z_ENDSTOP_CALIBRATE [SPEED=<speed>]`: Run a helper script useful
for calibrating a Z position_endstop config setting. See the
MANUAL_PROBE command for details on the parameters and the
additional commands available while the tool is active.
- `Z_OFFSET_APPLY_ENDSTOP`: Take the current Z Gcode offset (aka,
babystepping), and subtract it from the stepper_z endstop_position.
This acts to take a frequently used babystepping value, and "make
it permanent". Requires a `SAVE_CONFIG` to take effect.
- `TUNING_TOWER COMMAND=<command> PARAMETER=<name> START=<value> [SKIP=<value>]
[FACTOR=<value> [BAND=<value>]] | [STEP_DELTA=<value> STEP_HEIGHT=<value>]`:
A tool for tuning a parameter on each Z height during a print.
The tool will run the given `COMMAND` with the given `PARAMETER`
assigned to a value that varies with `Z` according to a formula. Use `FACTOR`
if you will use a ruler or calipers to measure the Z height of the optimum
value, or `STEP_DELTA` and `STEP_HEIGHT` if the tuning tower model has bands
of discrete values as is common with temperature towers. If `SKIP=<value>`
is specified, the tuning process doesn't begin until Z height `<value>` is
reached, and below that the value will be set to `START`; in this case, the
`z_height` used in the formulas below is actually `max(z - skip, 0)`.
There are three possible combinations of options:
- `FACTOR`: The value changes at a rate of `factor` per millimeter.
The formula used is
`value = start + factor * z_height`.
You can plug the optimum Z height directly into the formula to
determine the optimum parameter value.
- `FACTOR` and `BAND`: The value changes at an average rate of `factor` per
millimeter, but in discrete bands where the adjustment will only be made
every `BAND` millimeters of Z height.
The formula used is
`value = start + factor * ((floor(z_height / band) + .5) * band)`.
- `STEP_DELTA` and `STEP_HEIGHT`: The value changes by `STEP_DELTA` every
`STEP_HEIGHT` millimeters. The formula used is
`value = start + step_delta * floor(z_height / step_height)`.
You can simply count bands or read tuning tower labels to determine the
optimum value.
- `SET_DISPLAY_GROUP [DISPLAY=<display>] GROUP=<group>`: Set the
active display group of an lcd display. This allows to define
multiple display data groups in the config,
e.g. `[display_data <group> <elementname>]` and switch between them
using this extended gcode command. If DISPLAY is not specified it
defaults to "display" (the primary display).
- `SET_IDLE_TIMEOUT [TIMEOUT=<timeout>]`: Allows the user to set the
idle timeout (in seconds).
- `RESTART`: This will cause the host software to reload its config
and perform an internal reset. This command will not clear error
state from the micro-controller (see FIRMWARE_RESTART) nor will it
load new software (see
[the FAQ](FAQ.md#how-do-i-upgrade-to-the-latest-software)).
- `FIRMWARE_RESTART`: This is similar to a RESTART command, but it
also clears any error state from the micro-controller.
- `SAVE_CONFIG`: This command will overwrite the main printer config
file and restart the host software. This command is used in
conjunction with other calibration commands to store the results of
calibration tests.
- `STATUS`: Report the Klipper host software status.
- `HELP`: Report the list of available extended G-Code commands.
### G-Code Macro Commands
The following command is available when a
[gcode_macro config section](Config_Reference.md#gcode_macro) is
enabled (also see the
[command templates guide](Command_Templates.md)):
- `SET_GCODE_VARIABLE MACRO=<macro_name> VARIABLE=<name>
VALUE=<value>`: This command allows one to change the value of a
gcode_macro variable at run-time. The provided VALUE is parsed as a
Python literal.
### Custom Pin Commands
The following command is available when an
[output_pin config section](Config_Reference.md#output_pin) is
enabled:
- `SET_PIN PIN=config_name VALUE=<value> CYCLE_TIME=<cycle_time>`
Note: Hardware PWM does not currently support the CYCLE_TIME parameter
and will use the cycle time defined in the config.
### Manually Controlled Fans Commands
The following command is available when a
[fan_generic config section](Config_Reference.md#fan_generic) is
enabled:
- `SET_FAN_SPEED FAN=config_name SPEED=<speed>` This command sets
the speed of a fan. <speed> must be between 0.0 and 1.0.
### Neopixel and Dotstar Commands
The following command is available when a
[neopixel config section](Config_Reference.md#neopixel) or
[dotstar config section](Config_Reference.md#dotstar) is enabled:
- `SET_LED LED=<config_name> RED=<value> GREEN=<value> BLUE=<value>
WHITE=<value> [INDEX=<index>] [TRANSMIT=0] [SYNC=1]`: This sets the LED
output. Each color `<value>` must be between 0.0 and 1.0. The WHITE
option is only valid on RGBW LEDs. If multiple LED chips are
daisy-chained then one may specify INDEX to alter the color of just
the given chip (1 for the first chip, 2 for the second, etc.). If
INDEX is not provided then all LEDs in the daisy-chain will be set
to the provided color. If TRANSMIT=0 is specified then the color
change will only be made on the next SET_LED command that does not
specify TRANSMIT=0; this may be useful in combination with the INDEX
parameter to batch multiple updates in a daisy-chain. By default, the
SET_LED command will sync it's changes with other ongoing gcode commands.
This can lead to undesirable behavior if LEDs are being set while the
printer is not printing as it will reset the idle timeout. If careful
timing is not needed, the optional SYNC=0 parameter can be specified to
apply the changes instantly and not reset the idle timeout.
### Servo Commands
The following commands are available when a
[servo config section](Config_Reference.md#servo) is enabled:
- `SET_SERVO SERVO=config_name [ANGLE=<degrees> | WIDTH=<seconds>]`:
Set the servo position to the given angle (in degrees) or pulse
width (in seconds). Use `WIDTH=0` to disable the servo output.
### Manual stepper Commands
The following command is available when a
[manual_stepper config section](Config_Reference.md#manual_stepper) is
enabled:
- `MANUAL_STEPPER STEPPER=config_name [ENABLE=[0|1]]
[SET_POSITION=<pos>] [SPEED=<speed>] [ACCEL=<accel>]
[MOVE=<pos> [STOP_ON_ENDSTOP=[1|2|-1|-2]] [SYNC=0]]`: This command
will alter the state of the stepper. Use the ENABLE parameter to
enable/disable the stepper. Use the SET_POSITION parameter to force
the stepper to think it is at the given position. Use the MOVE
parameter to request a movement to the given position. If SPEED
and/or ACCEL is specified then the given values will be used instead
of the defaults specified in the config file. If an ACCEL of zero is
specified then no acceleration will be performed. If
STOP_ON_ENDSTOP=1 is specified then the move will end early should
the endstop report as triggered (use STOP_ON_ENDSTOP=2 to complete
the move without error even if the endstop does not trigger, use -1
or -2 to stop when the endstop reports not triggered). Normally
future G-Code commands will be scheduled to run after the stepper
move completes, however if a manual stepper move uses SYNC=0 then
future G-Code movement commands may run in parallel with the stepper
movement.
### Extruder stepper Commands
The following command is available when an
[extruder_stepper config section](Config_Reference.md#extruder_stepper)
is enabled:
- `SYNC_STEPPER_TO_EXTRUDER STEPPER=<extruder_stepper config_name>
[EXTRUDER=<extruder config_name>]`: This command will cause the given
STEPPER to become synchronized to the given EXTRUDER, overriding
the extruder defined in the "extruder_stepper" config section.
### Probe
The following commands are available when a
[probe config section](Config_Reference.md#probe) is enabled (also see
the [probe calibrate guide](Probe_Calibrate.md)):
- `PROBE [PROBE_SPEED=<mm/s>] [LIFT_SPEED=<mm/s>] [SAMPLES=<count>]
[SAMPLE_RETRACT_DIST=<mm>] [SAMPLES_TOLERANCE=<mm>]
[SAMPLES_TOLERANCE_RETRIES=<count>]
[SAMPLES_RESULT=median|average]`: Move the nozzle downwards until
the probe triggers. If any of the optional parameters are provided
they override their equivalent setting in the
[probe config section](Config_Reference.md#probe).
- `QUERY_PROBE`: Report the current status of the probe ("triggered"
or "open").
- `PROBE_ACCURACY [PROBE_SPEED=<mm/s>] [SAMPLES=<count>]
[SAMPLE_RETRACT_DIST=<mm>]`: Calculate the maximum, minimum,
average, median, and standard deviation of multiple probe
samples. By default, 10 SAMPLES are taken. Otherwise the optional
parameters default to their equivalent setting in the probe config
section.
- `PROBE_CALIBRATE [SPEED=<speed>] [<probe_parameter>=<value>]`: Run a
helper script useful for calibrating the probe's z_offset. See the
PROBE command for details on the optional probe parameters. See
the MANUAL_PROBE command for details on the SPEED parameter and the
additional commands available while the tool is active. Please note,
the PROBE_CALIBRATE command uses the speed variable
to move in XY direction as well as Z.
- `Z_OFFSET_APPLY_PROBE`: Take the current Z Gcode offset (aka,
babystepping), and subtract if from the probe's z_offset.
This acts to take a frequently used babystepping value, and "make
it permanent". Requires a `SAVE_CONFIG` to take effect.
### BLTouch
The following command is available when a
[bltouch config section](Config_Reference.md#bltouch) is enabled (also
see the [BL-Touch guide](BLTouch.md)):
- `BLTOUCH_DEBUG COMMAND=<command>`: This sends a command to the
BLTouch. It may be useful for debugging. Available commands are:
`pin_down`, `touch_mode`, `pin_up`, `self_test`, `reset`,
(*1): `set_5V_output_mode`, `set_OD_output_mode`, `output_mode_store`
*** Note that the commands marked by (*1) are solely supported
by a BL-Touch V3.0 or V3.1(+)
- `BLTOUCH_STORE MODE=<output_mode>`: This stores an output mode in the
EEPROM of a BLTouch V3.1 Available output_modes are: `5V`, `OD`
### Delta Calibration
The following commands are available when the
[delta_calibrate config section](Config_Reference.md#linear-delta-kinematics)
is enabled (also see the [delta calibrate guide](Delta_Calibrate.md)):
- `DELTA_CALIBRATE [METHOD=manual] [<probe_parameter>=<value>]`: This
command will probe seven points on the bed and recommend updated
endstop positions, tower angles, and radius. See the PROBE command
for details on the optional probe parameters. If METHOD=manual is
specified then the manual probing tool is activated - see the
MANUAL_PROBE command above for details on the additional commands
available while this tool is active.
- `DELTA_ANALYZE`: This command is used during enhanced delta
calibration. See [Delta Calibrate](Delta_Calibrate.md) for details.
### Bed Tilt
The following commands are available when the
[bed_tilt config section](Config_Reference.md#bed_tilt) is enabled:
- `BED_TILT_CALIBRATE [METHOD=manual] [<probe_parameter>=<value>]`:
This command will probe the points specified in the config and then
recommend updated x and y tilt adjustments. See the PROBE command
for details on the optional probe parameters. If METHOD=manual is
specified then the manual probing tool is activated - see the
MANUAL_PROBE command above for details on the additional commands
available while this tool is active.
### Mesh Bed Leveling
The following commands are available when the
[bed_mesh config section](Config_Reference.md#bed_mesh) is enabled
(also see the [bed mesh guide](Bed_Mesh.md)):
- `BED_MESH_CALIBRATE [METHOD=manual] [<probe_parameter>=<value>]
[<mesh_parameter>=<value>]`:
This command probes the bed using generated points specified by the
parameters in the config. After probing, a mesh is generated and
z-movement is adjusted according to the mesh. See the PROBE command
for details on the optional probe parameters. If METHOD=manual is
specified then the manual probing tool is activated - see the
MANUAL_PROBE command above for details on the additional commands
available while this tool is active.
- `BED_MESH_OUTPUT PGP=[<0:1>]`: This command outputs the current probed
z values and current mesh values to the terminal. If PGP=1 is specified
the x,y coordinates generated by bed_mesh, along with their associated
indices, will be output to the terminal.
- `BED_MESH_MAP`: Like to BED_MESH_OUTPUT, this command prints the current
state of the mesh to the terminal. Instead of printing the values in a
human readable format, the state is serialized in json format. This allows
octoprint plugins to easily capture the data and generate height maps
approximating the bed's surface.
- `BED_MESH_CLEAR`: This command clears the mesh and removes all
z adjustment. It is recommended to put this in your end-gcode.
- `BED_MESH_PROFILE LOAD=<name> SAVE=<name> REMOVE=<name>`: This
command provides profile management for mesh state. LOAD will
restore the mesh state from the profile matching the supplied name.
SAVE will save the current mesh state to a profile matching the
supplied name. Remove will delete the profile matching the
supplied name from persistent memory. Note that after SAVE or
REMOVE operations have been run the SAVE_CONFIG gcode must be run
to make the changes to peristent memory permanent.
- `BED_MESH_OFFSET [X=<value>] [Y=<value>]`: Applies X and/or Y
offsets to the mesh lookup. This is useful for printers with
independent extruders, as an offset is necessary to produce
correct Z adjustment after a tool change.
### Bed Screws Helper
The following commands are available when the
[bed_screws config section](Config_Reference.md#bed_screws) is enabled
(also see the
[manual level guide](Manual_Level.md#adjusting-bed-leveling-screws)):
- `BED_SCREWS_ADJUST`: This command will invoke the bed screws
adjustment tool. It will command the nozzle to different locations
(as defined in the config file) and allow one to make adjustments to
the bed screws so that the bed is a constant distance from the
nozzle.
### Bed Screws Tilt Adjust Helper
The following commands are available when the
[screws_tilt_adjust config section](Config_Reference.md#screws_tilt_adjust)
is enabled (also see the
[manual level guide](Manual_Level.md#adjusting-bed-leveling-screws-using-the-bed-probe)):
- `SCREWS_TILT_CALCULATE [DIRECTION=CW|CCW] [<probe_parameter>=<value>]`:
This command will invoke the bed screws adjustment tool. It will command the
nozzle to different locations (as defined in the config file)
probing the z height and calculate the number of knob turns to
adjust the bed level. If DIRECTION is specified, the knob turns will all
be in the same direction, clockwise (CW) or counterclockwise (CCW).
See the PROBE command for details on the optional probe parameters.
IMPORTANT: You MUST always do a G28 before using this command.
### Z Tilt
The following commands are available when the
[z_tilt config section](Config_Reference.md#z_tilt) is enabled:
- `Z_TILT_ADJUST [<probe_parameter>=<value>]`: This command will probe
the points specified in the config and then make independent
adjustments to each Z stepper to compensate for tilt. See the PROBE
command for details on the optional probe parameters.
### Dual Carriages
The following command is available when the
[dual_carriage config section](Config_Reference.md#dual_carriage) is
enabled:
- `SET_DUAL_CARRIAGE CARRIAGE=[0|1]`: This command will set the active
carriage. It is typically invoked from the activate_gcode and
deactivate_gcode fields in a multiple extruder configuration.
### TMC stepper drivers
The following commands are available when any of the
[tmcXXXX config sections](Config_Reference.md#tmc-stepper-driver-configuration)
are enabled:
- `DUMP_TMC STEPPER=<name>`: This command will read the TMC driver
registers and report their values.
- `INIT_TMC STEPPER=<name>`: This command will intitialize the TMC
registers. Needed to re-enable the driver if power to the chip is
turned off then back on.
- `SET_TMC_CURRENT STEPPER=<name> CURRENT=<amps> HOLDCURRENT=<amps>`:
This will adjust the run and hold currents of the TMC driver.
(HOLDCURRENT is not applicable to tmc2660 drivers.)
- `SET_TMC_FIELD STEPPER=<name> FIELD=<field> VALUE=<value>`: This
will alter the value of the specified register field of the TMC
driver. This command is intended for low-level diagnostics and
debugging only because changing the fields during run-time can lead
to undesired and potentially dangerous behavior of your printer.
Permanent changes should be made using the printer configuration
file instead. No sanity checks are performed for the given values.
### Endstop adjustments by stepper phase
The following commands are available when an
[endstop_phase config section](Config_Reference.md#endstop_phase) is
enabled (also see the [endstop phase guide](Endstop_Phase.md)):
- `ENDSTOP_PHASE_CALIBRATE [STEPPER=<config_name>]`: If no STEPPER
parameter is provided then this command will reports statistics on
endstop stepper phases during past homing operations. When a STEPPER
parameter is provided it arranges for the given endstop phase
setting to be written to the config file (in conjunction with the
SAVE_CONFIG command).
### Force movement
The following commands are available when the
[force_move config section](Config_Reference.md#force_move) is
enabled:
- `FORCE_MOVE STEPPER=<config_name> DISTANCE=<value> VELOCITY=<value>
[ACCEL=<value>]`: This command will forcibly move the given stepper
the given distance (in mm) at the given constant velocity (in
mm/s). If ACCEL is specified and is greater than zero, then the
given acceleration (in mm/s^2) will be used; otherwise no
acceleration is performed. No boundary checks are performed; no
kinematic updates are made; other parallel steppers on an axis will
not be moved. Use caution as an incorrect command could cause
damage! Using this command will almost certainly place the low-level
kinematics in an incorrect state; issue a G28 afterwards to reset
the kinematics. This command is intended for low-level diagnostics
and debugging.
- `SET_KINEMATIC_POSITION [X=<value>] [Y=<value>] [Z=<value>]`: Force
the low-level kinematic code to believe the toolhead is at the given
cartesian position. This is a diagnostic and debugging command; use
SET_GCODE_OFFSET and/or G92 for regular axis transformations. If an
axis is not specified then it will default to the position that the
head was last commanded to. Setting an incorrect or invalid position
may lead to internal software errors. This command may invalidate
future boundary checks; issue a G28 afterwards to reset the
kinematics.
### SDcard loop
When the [sdcard_loop config section](Config_Reference.md#sdcard_loop)
is enabled, the following extended commands are available:
- `SDCARD_LOOP_BEGIN COUNT=<count>`: Begin a looped section in the SD
print. A count of 0 indicates that the section should be looped
indefinately.
- `SDCARD_LOOP_END`: End a looped section in the SD print.
- `SDCARD_LOOP_DESIST`: Complete existing loops without further
iterations.
### Send message (respond) to host
The following commands are availabe when the
[respond config section](Config_Reference.md#respond) is enabled.
- `M118 <message>`: echo the message prepended with the configured
default prefix (or `echo: ` if no prefix is configured).
- `RESPOND MSG="<message>"`: echo the message prepended with the
configured default prefix (or `echo: ` if no prefix is configured).
- `RESPOND TYPE=echo MSG="<message>"`: echo the message prepended with
`echo: `.
- `RESPOND TYPE=command MSG="<message>"`: echo the message prepended
with `// `. Octopint can be configured to respond to these messages
(e.g. `RESPOND TYPE=command MSG=action:pause`).
- `RESPOND TYPE=error MSG="<message>"`: echo the message prepended
with `!! `.
- `RESPOND PREFIX=<prefix> MSG="<message>"`: echo the message
prepended with `<prefix>`. (The `PREFIX` parameter will take
priority over the `TYPE` parameter)
### Pause Resume
The following commands are available when the
[pause_resume config section](Config_Reference.md#pause_resume) is
enabled:
- `PAUSE`: Pauses the current print. The current position is captured
for restoration upon resume.
- `RESUME [VELOCITY=<value>]`: Resumes the print from a pause, first
restoring the previously captured position. The VELOCITY parameter
determines the speed at which the tool should return to the original
captured position.
- `CLEAR_PAUSE`: Clears the current paused state without resuming the
print. This is useful if one decides to cancel a print after a
PAUSE. It is recommended to add this to your start gcode to make
sure the paused state is fresh for each print.
- `CANCEL_PRINT`: Cancels the current print.
### Filament Sensor
The following command is available when the
[filament_switch_sensor or filament_motion_sensor config section](Config_Reference.md#filament_switch_sensor)
is enabled.
- `QUERY_FILAMENT_SENSOR SENSOR=<sensor_name>`: Queries the current
status of the filament sensor. The data displayed on the terminal
will depend on the sensor type defined in the confguration.
- `SET_FILAMENT_SENSOR SENSOR=<sensor_name> ENABLE=[0|1]`: Sets the
filament sensor on/off. If ENABLE is set to 0, the filament sensor
will be disabled, if set to 1 it is enabled.
### Firmware Retraction
The following commands are available when the
[firmware_retraction config section](Config_Reference.md#firmware_retraction)
is enabled. These commands allow you to utilise the firmware
retraction feature available in many slicers, to reduce stringing
during non-extrusion moves from one part of the print to another.
Appropriately configuring pressure advance reduces the length of
retraction required.
- `SET_RETRACTION [RETRACT_LENGTH=<mm>] [RETRACT_SPEED=<mm/s>]
[UNRETRACT_EXTRA_LENGTH=<mm>] [UNRETRACT_SPEED=<mm/s>]`: Adjust the
parameters used by firmware retraction. RETRACT_LENGTH determines
the length of filament to retract and unretract. The speed of
retraction is adjusted via RETRACT_SPEED, and is typically set
relatively high. The speed of unretraction is adjusted via
UNRETRACT_SPEED, and is not particularly critical, although often
lower than RETRACT_SPEED. In some cases it is useful to add a small
amount of additional length on unretraction, and this is set via
UNRETRACT_EXTRA_LENGTH. SET_RETRACTION is commonly set as part of
slicer per-filament configuration, as different filaments require
different parameter settings.
- `GET_RETRACTION`: Queries the current parameters used by firmware
retraction and displays them on the terminal.
- `G10`: Retracts the extruder using the currently configured
parameters.
- `G11`: Unretracts the extruder using the currently configured
parameters.
### Skew Correction
The following commands are available when the
[skew_correction config section](Config_Reference.md#skew_correction)
is enabled (also see the [Skew Correction](Skew_Correction.md) guide):
- `SET_SKEW [XY=<ac_length,bd_length,ad_length>] [XZ=<ac,bd,ad>]
[YZ=<ac,bd,ad>] [CLEAR=<0|1>]`: Configures the [skew_correction]
module with measurements (in mm) taken from a calibration print.
One may enter measurements for any combination of planes, planes not
entered will retain their current value. If `CLEAR=1` is entered
then all skew correction will be disabled.
- `GET_CURRENT_SKEW`: Reports the current printer skew for each plane
in both radians and degrees. The skew is calculated based on
parameters provided via the `SET_SKEW` gcode.
- `CALC_MEASURED_SKEW [AC=<ac_length>] [BD=<bd_length>]
[AD=<ad_length>]`: Calculates and reports the skew (in radians and
degrees) based on a measured print. This can be useful for
determining the printer's current skew after correction has been
applied. It may also be useful before correction is applied to
determine if skew correction is necessary. See [Skew Correction](Skew_Correction.md)
for details on skew calibration objects and measurements.
- `SKEW_PROFILE [LOAD=<name>] [SAVE=<name>] [REMOVE=<name>]`: Profile
management for skew_correction. LOAD will restore skew state from
the profile matching the supplied name. SAVE will save the current
skew state to a profile matching the supplied name. Remove will
delete the profile matching the supplied name from persistent
memory. Note that after SAVE or REMOVE operations have been run the
SAVE_CONFIG gcode must be run to make the changes to peristent
memory permanent.
### Delayed GCode
The following command is enabled if a
[delayed_gcode config section](Config_Reference.md#delayed_gcode) has
been enabled (also see the
[template guide](Command_Templates.md#delayed-gcodes)):
- `UPDATE_DELAYED_GCODE [ID=<name>] [DURATION=<seconds>]`: Updates the
delay duration for the identified [delayed_gcode] and starts the timer
for gcode execution. A value of 0 will cancel a pending delayed gcode
from executing.
### Save Variables
The following command is enabled if a
[save_variables config section](Config_Reference.md#save_variables)
has been enabled:
- `SAVE_VARIABLE VARIABLE=<name> VALUE=<value>`: Saves the variable to
disk so that it can be used across restarts. All stored variables
are loaded into the `printer.save_variables.variables` dict at
startup and can be used in gcode macros. The provided VALUE is
parsed as a Python literal.
### Resonance compensation
The following command is enabled if an
[input_shaper config section](Config_Reference.md#input_shaper) has
been enabled (also see the
[resonance compensation guide](Resonance_Compensation.md)):
- `SET_INPUT_SHAPER [SHAPER_FREQ_X=<shaper_freq_x>]
[SHAPER_FREQ_Y=<shaper_freq_y>]
[DAMPING_RATIO_X=<damping_ratio_x>]
[DAMPING_RATIO_Y=<damping_ratio_y>] [SHAPER_TYPE=<shaper>]
[SHAPER_TYPE_X=<shaper_type_x>] [SHAPER_TYPE_Y=<shaper_type_y>]`:
Modify input shaper parameters. Note that SHAPER_TYPE parameter
resets input shaper for both X and Y axes even if different shaper
types have been configured in [input_shaper] section. SHAPER_TYPE
cannot be used together with either of SHAPER_TYPE_X and
SHAPER_TYPE_Y parameters. See
[config reference](Config_Reference.md#input_shaper) for more
details on each of these parameters.
### Temperature Fan Commands
The following command is available when a
[temperature_fan config section](Config_Reference.md#temperature_fan)
is enabled:
- `SET_TEMPERATURE_FAN_TARGET temperature_fan=<temperature_fan_name>
[target=<target_temperature>] [min_speed=<min_speed>] [max_speed=<max_speed>]`: Sets the target temperature for a
temperature_fan. If a target is not supplied, it is set to the
specified temperature in the config file. If speeds are not supplied, no change is applied.
### Adxl345 Accelerometer Commands
The following commands are available when an
[adxl345 config section](Config_Reference.md#adxl345) is enabled:
- `ACCELEROMETER_MEASURE [CHIP=<config_name>] [NAME=<value>]`: Starts
accelerometer measurements at the requested number of samples per
second. If CHIP is not specified it defaults to "adxl345". The
command works in a start-stop mode: when executed for the first
time, it starts the measurements, next execution stops them. The
results of measurements are written to a file named
`/tmp/adxl345-<chip>-<name>.csv` where `<chip>` is the name of the
accelerometer chip (`my_chip_name` from `[adxl345 my_chip_name]`)
and `<name>` is the optional NAME parameter. If NAME is not
specified it defaults to the current time in "YYYYMMDD_HHMMSS"
format. If the accelerometer does not have a name in its config
section (simply `[adxl345]`) then `<chip>` part of the name is not
generated.
- `ACCELEROMETER_QUERY [CHIP=<config_name>] [RATE=<value>]`: queries
accelerometer for the current value. If CHIP is not specified it
defaults to "adxl345". If RATE is not specified, the default value
is used. This command is useful to test the connection to the
ADXL345 accelerometer: one of the returned values should be a
free-fall acceleration (+/- some noise of the chip).
- `ACCELEROMETER_DEBUG_READ [CHIP=<config_name>] REG=<register>`: queries
ADXL345 register <register> (e.g. 44 or 0x2C). Can be useful for
debugging purposes.
- `ACCELEROMETER_DEBUG_WRITE [CHIP=<config_name>] REG=<reg> VAL=<value>`:
writes raw <value> into a register <register>. Both <value> and
<register> can be a decimal or a hexadecimal integer. Use with care,
and refer to ADXL345 data sheet for the reference.
### Resonance Testing Commands
The following commands are available when a
[resonance_tester config section](Config_Reference.md#resonance_tester)
is enabled (also see the
[measuring resonances guide](Measuring_Resonances.md)):
- `MEASURE_AXES_NOISE`: Measures and outputs the noise for all axes of
all enabled accelerometer chips.
- `TEST_RESONANCES AXIS=<axis> OUTPUT=<resonances,raw_data>
[NAME=<name>] [FREQ_START=<min_freq>] [FREQ_END=<max_freq>]
[HZ_PER_SEC=<hz_per_sec>] [INPUT_SHAPING=[<0:1>]]`: Runs the resonance
test in all configured probe points for the requested <axis>
and measures the acceleration using the accelerometer chips configured
for the respective axis. <axis> can either be X or Y, or specify an
arbitrary direction as `AXIS=dx,dy`, where dx and dy are floating point
numbers defining a direction vector (e.g. `AXIS=X`, `AXIS=Y`, or
`AXIS=1,-1` to define a diagonal direction). Note that `AXIS=dx,dy` and
`AXIS=-dx,-dy` is equivalent. If `INPUT_SHAPING=0` or not set (default),
disables input shaping for the resonance testing, because it is not valid
to run the resonance testing with the input shaper enabled.
`OUTPUT` parameter is a comma-separated list of which outputs will be
written. If `raw_data` is requested, then the raw accelerometer data
is written into a file or a series of files
`/tmp/raw_data_<axis>_[<point>_]<name>.csv` with (`<point>_` part of
the name generated only if more than 1 probe point is configured).
If `resonances` is specified, the frequency response is calculated
(across all probe points) and written into
`/tmp/resonances_<axis>_<name>.csv` file. If unset, OUTPUT defaults
to `resonances`, and NAME defaults to the current time in
"YYYYMMDD_HHMMSS" format.
- `SHAPER_CALIBRATE [AXIS=<axis>] [NAME=<name>]
[FREQ_START=<min_freq>] [FREQ_END=<max_freq>]
[HZ_PER_SEC=<hz_per_sec>] [MAX_SMOOTHING=<max_smoothing>]`:
Similarly to `TEST_RESONANCES`, runs the resonance test as configured,
and tries to find the optimal parameters for the input shaper for the
requested axis (or both X and Y axes if `AXIS` parameter is unset).
If `MAX_SMOOTHING` is unset, its value is taken from `[resonance_tester]`
section, with the default being unset. See the
[Max smoothing](Measuring_Resonances.md#max-smoothing) of the measuring
resonances guide for more information on the use of this feature.
The results of the tuning are printed to the console, and the frequency
responses and the different input shapers values are written to a CSV
file(s) `/tmp/calibration_data_<axis>_<name>.csv`. Unless specified, NAME
defaults to the current time in "YYYYMMDD_HHMMSS" format. Note that
the suggested input shaper parameters can be persisted in the config
by issuing `SAVE_CONFIG` command.
### Palette 2 Commands
The following command is available when the
[palette2 config section](Config_Reference.md#palette2)
is enabled:
- `PALETTE_CONNECT`: This command initializes the connection with
the Palette 2.
- `PALETTE_DISCONNECT`: This command disconnects from the Palette 2.
- `PALETTE_CLEAR`: This command instructs the Palette 2 to clear all of the
input and output paths of filament.
- `PALETTE_CUT`: This command instructs the Palette 2 to cut the filament
currently loaded in the splice core.
- `PALETTE_SMART_LOAD`: This command start the smart load sequence on the
Palette 2. Filament is loaded automatically by extruding it the distance
calibrated on the device for the printer, and instructs the Palette 2
once the loading has been completed. This command is the same as pressing
**Smart Load** directly on the Palette 2 screen after the filament load
is complete.
Palette prints work by embedding special OCodes (Omega Codes)
in the GCode file:
- `O1`...`O32`: These codes are read from the GCode stream and processed
by this module and passed to the Palette 2 device.
### Filament Width Sensor Commands
The following command is available when the
[tsl1401cl filament width sensor config section](Config_Reference.md#tsl1401cl_filament_width_sensor)
or [hall filament width sensor config section](Config_Reference.md#hall_filament_width_sensor)
is enabled (also see [TSLl401CL Filament Width Sensor](TSL1401CL_Filament_Width_Sensor.md)
and [Hall Filament Width Sensor](Hall_Filament_Width_Sensor.md)):
- `QUERY_FILAMENT_WIDTH` - Return the current measured filament width
- `RESET_FILAMENT_WIDTH_SENSOR` - Clear all sensor readings. Helpful after
filament change
- `DISABLE_FILAMENT_WIDTH_SENSOR` - Turn off the filament width sensor and
stop using it for flow control
- `ENABLE_FILAMENT_WIDTH_SENSOR` - Turn on the filament width sensor and
start using it for flow control
### Hall Filament Width Sensor Commands
The following command is available when the
[hall filament width sensor config section](Config_Reference.md#hall_filament_width_sensor)
is enabled:
- `QUERY_RAW_FILAMENT_WIDTH` - Return the current ADC channel readings and
RAW sensor value for calibration points
- `ENABLE_FILAMENT_WIDTH_LOG` - Turn on diameter logging
- `DISABLE_FILAMENT_WIDTH_LOG` - Turn off diameter logging
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