Power Failure Resume for Klipper

Notice

• Only applicable to certain machines

Switch Branch

• This needs to be executed via SS through a network connection to the host machine after ensuring the host machine can access the internet.

git clone https://e.coding.net/g-ofpa1390/3D-Printers/klipper-dev.git -b fly-dev klipper

Reference Configuration

[power_resume]
power_pin: PA10
is_shutdown: True # Whether to perform a shutdown operation, default is enabled
start_gcode:
    # G-code to execute before resuming printing
    # All parameters saved before power failure can be retrieved using {PR}
    # Use M118 {PR} to output all available parameters
    M118 Resuming Print: {PR.print_stats.filename}
    {% if PR.print_stats.info.total_layer %}
        M118 Total Layers: {PR.print_stats.info.total_layer}
        M118 Current Layer: {PR.print_stats.info.current_layer}
    {% endif %}
    M118 Interrupt Position: X:[{PR.POS_X}] Y:[{PR.POS_Y}] Z:[{PR.POS_Z}] E:[{PR.POS_E}]
    M140 S{PR.bed.target}      ; Set bed temperature
    # M104 S180                ; Set extruder temperature
    # M109 S180                ; Wait for extruder to heat up to set temperature
    G91                        ; Relative coordinates
    G1 Z2 F100                 ; Lift Z, prepare for X,Y zeroing
    G90                        ; Absolute coordinates
    G28 X Y                    ; Home XY
    M140 S{PR.bed.target}      ; Set bed temperature
    M104 S{PR.extruder.target} ; Set extruder temperature
    M190 S{PR.bed.target}      ; Wait for bed to heat up to set temperature
    M109 S{PR.extruder.target} ; Wait for extruder to heat up to set temperature
    M106 S255                  ; Turn on cooling fan
    M83                        ; Relative extrusion
    G1 E10 F400                ; Extrude some filament
    G90                        ; Absolute coordinates
    G1 F{PR.gcode_move.speed}  ; Set movement speed
    G1 X{PR.POS_X} Y{PR.POS_Y} Z{PR.POS_Z} ; Move to starting position
    {% if PR.gcode_move.absolute_coordinates %}
        G90 ; Absolute movement
    {% else %}
        G91 ; Relative movement
    {% endif %}
    {% if PR.gcode_move.absolute_extrude %}
        M82 ; Absolute extrusion
    {% else %}
        M83 ; Relative extrusion
    {% endif %}
    G92 E{PR.POS_E} ; Set extrusion position
shutdown_gcode:
    # G-code to execute before shutting down
    M118 Low Power Supply Voltage, Shutting Down
    # M112 ; Emergency stop