Optimise Klipper Start G-code and print faster thanks to TEMPERATURE_WAIT

created on
  Wednesday, 28 February 2024
edited on
  Monday, 29 December 2025
by
  Stefan Trucker  

This G-code replaces the standard heating cycle, which waits until the temperature has stabilised. Instead, as soon as the temperature has been reached, the next step is initiated.

M109 for the hot end

 [gcode_macro M109]
rename_existing: M99109
gcode:
    #Parameters
    {% set s = params.S|float %}
    
    M104 {% for p in params %}{“%s%s” % (p, params[p])}{% endfor %}  ; Set hotend temp
    {% if s != 0 %}
        TEMPERATURE_WAIT SENSOR=extruder MINIMUM={s} MAXIMUM={s+1}   ; Wait for hotend temp (within 1 degree)
    {% endif %}

M190 for the heating bed

[gcode_macro M190]
rename_existing: M99190
gcode:
    #Parameters
    {% set s = params.S|float %}

    M140 {% for p in params %}{“%s%s” % (p, params[p])}{% endfor %}   ; Set bed temp
    {% if s != 0 %}
        TEMPERATURE_WAIT SENSOR=heater_bed MINIMUM={s} MAXIMUM={s+1}  ; Wait for bed temp (within 1 degree)
    {% endif %}

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