📜 Klipper Guide Series

1. What is Klipper? 2. RPi OS Setup 3. KIAUH Setup 4. Input Shaping 5. Macros 6. Advanced Macros 7. Obico 8. Cura Settings 9. Orca Slicer

📜 START_PRINT & END_PRINT Macros

Custom start and end codes for Klipper

🎯 Why Are Macros Important?

🔄

Central Management

Control all settings from printer.cfg without changing slicer

🌡️

Dynamic Parameters

Automatically receive temperature values from slicer

🧹

Clean Start

Nozzle cleaning, prime line and bed mesh automation

🛡️

Safe Shutdown

Safely shut down the printer and prepare for next print

🚀 START_PRINT Macro

This macro runs automatically at every print start:

[gcode_macro START_PRINT]
gcode:
    # Get parameters from slicer
    {% set BED_TEMP = params.BED_TEMP|default(60)|float %}
    {% set EXTRUDER_TEMP = params.EXTRUDER_TEMP|default(200)|float %}

    # Initial settings
    G90                    ; Absolute positioning
    M83                    ; Relative extrusion
    G28                    ; Home all axes

    # Heat bed (wait)
    M190 S{BED_TEMP}

    # Bed mesh (optional)
    BED_MESH_CALIBRATE

    # Heat hotend
    M109 S{EXTRUDER_TEMP}

    # Draw prime line
    G1 Z5 F3000
    G1 X10 Y10 F5000
    G1 Z0.3
    G1 X100 E20 F1000
    G1 X110 F5000
    G92 E0              ; Reset E value

💡 Tip: If you don't want to run bed mesh every print, use BED_MESH_PROFILE LOAD=default to load a pre-saved profile.

🏁 END_PRINT Macro

Provides safe shutdown when print finishes:

[gcode_macro END_PRINT]
gcode:
    # Print complete settings
    M400                   ; Wait for buffer
    G92 E0                 ; Reset E
    G1 E-2 F2700           ; Short retract
    G91                    ; Relative positioning

    # Raise nozzle
    G1 Z10 F3000

    # Present part
    G90                    ; Absolute positioning
    G1 X10 Y200 F5000

    # Turn off heaters
    M104 S0               ; Hotend off
    M140 S0               ; Bed off
    M106 S0               ; Fan off

    # Disable motors
    M84                   ; Steppers off

⚙️ Slicer Settings

You need to edit start/end G-codes in your slicer to use macros:

Slicer	Start G-code	End G-code
OrcaSlicer / PrusaSlicer	`START_PRINT BED_TEMP=[bed_temperature_initial_layer_single] EXTRUDER_TEMP=[nozzle_temperature_initial_layer]`	`END_PRINT`
Cura	`START_PRINT BED_TEMP={material_bed_temperature_layer_0} EXTRUDER_TEMP={material_print_temperature_layer_0}`	`END_PRINT`
SuperSlicer	`START_PRINT BED_TEMP=[first_layer_bed_temperature] EXTRUDER_TEMP=[first_layer_temperature]`	`END_PRINT`

⚠️ Important: Don't forget to remove existing slicer start codes (heating, homing etc.)! Otherwise double operations will occur.

🔧 Additional Helper Macros

CANCEL_PRINT - Print Cancellation

[gcode_macro CANCEL_PRINT]
rename_existing: BASE_CANCEL_PRINT
gcode:
    END_PRINT
    BASE_CANCEL_PRINT

PAUSE / RESUME

[gcode_macro PAUSE]
rename_existing: BASE_PAUSE
gcode:
    {% set X = params.X|default(10)|float %}
    {% set Y = params.Y|default(10)|float %}
    {% set Z = params.Z|default(10)|float %}
    SAVE_GCODE_STATE NAME=PAUSE_state
    BASE_PAUSE
    G91
    G1 Z{Z} F3000
    G90
    G1 X{X} Y{Y} F5000

[gcode_macro RESUME]
rename_existing: BASE_RESUME
gcode:
    RESTORE_GCODE_STATE NAME=PAUSE_state MOVE=1
    BASE_RESUME

🎉 Macros Ready!

Your basic macros are now working. For more advanced features, check out the jschuh macro collection!

Next: Advanced jschuh Macros →

Klipper Automation: The Power of START_PRINT and END_PRINT Macros (Part 4)