nestable.cfg

[gcode_macro limit_toolhead_temp_for_tap]
gcode:
    {% set stack_level = printer["gcode_macro restore_toolhead_temp"].stack_level|int > 0 %}
    {% set already_limited = stack_level > 0 %}
    {% set probe_temp = 150 %}
    {% set max_temp = probe_temp + 3 %}
    {% set actual_temp = printer.extruder.temperature %}
    {% set target_temp = printer.extruder.target %}
    {% set target_too_high = target_temp > probe_temp %}
    {% set actual_too_high = actual_temp > max_temp %}
    {% set overheated = target_too_high or actual_too_high %}
    
    SET_GCODE_VARIABLE MACRO=restore_toolhead_temp VARIABLE=stack_level VALUE={stack_level + 1}

    {% if already_limited and overheated %} 
        { action_respond_info('Unexpectedly high extruder temperature while in nested LIMIT') }
        STATUS_HEATING
        M109 S{probe_temp}
    {% elif target_temp > probe_temp %}
        SET_GCODE_VARIABLE MACRO=restore_toolhead_temp VARIABLE=previous_target VALUE={target_temp}
        { action_respond_info('Extruder temperature target of %.1fC is too high, lowering to %.1fC' % (target_temp, probe_temp)) }
        STATUS_HEATING
        M109 S{ probe_temp }
    {% elif actual_temp > max_temp %}
        # Temperature target is already low enough, but nozzle may still be too hot.
        { action_respond_info('Extruder temperature %.1fC is still too high, waiting until below %.1fC' % (actual_temp, probe_temp)) }
        TEMPERATURE_WAIT SENSOR=extruder MAXIMUM={ probe_temp }
    {% endif %}

[gcode_macro restore_toolhead_temp]
variable_stack_level: 0
variable_previous_target: None
gcode:
    {% set level = stack_level|int %}
    {% if level <= 0 %}
        { action_respond_info('Unnested RESTORE_TOOLHEAD_TEMP') }
        SET_GCODE_VARIABLE MACRO=restore_toolhead_temp VARIABLE=stack_level VALUE=0
    {% else %}
        {% set level = level - 1 %} 
        SET_GCODE_VARIABLE MACRO=restore_toolhead_temp VARIABLE=stack_level VALUE={level}
        {% if level == 0 and previous_target %}
            { action_respond_info('Restoring previous temperature target of %.1fC' % (previous_target)) }
            SET_GCODE_VARIABLE MACRO=restore_toolhead_temp VARIABLE=previous_target VALUE=None
            STATUS_HEATING
            M104 S{previous_target}
        {% endif %}
    {% endif %}