fan_stall_detection.cfg

[gcode_button HEF_FAN]
pin: !can0:LIMIT_3
press_gcode: _HEF_ALARM_SET
release_gcode: _HEF_ALARM_CLEAR

[delayed_gcode _HEF_ALARM]
gcode:
  M118 HEF FAN Stopped
  #PAUSE_PRINT
  #TURN_OFF_HEATERS

[gcode_macro _HEF_ALARM_COUNTS]
variable_hefalarm_maxchecks:  10
variable_hefalarm_threshold:  4
variable_hefalarm_enable:     True

## should not be the need to edit anything below this line
variable_hefalarmset_count:   0
variable_hefalarmclear_count: 0
variable_hefalarm_checks:     0
variable_verbose: True
gcode:
  SET_GCODE_VARIABLE MACRO=_HEF_ALARM_COUNTS VARIABLE=hefalarmset_count VALUE=0
  SET_GCODE_VARIABLE MACRO=_HEF_ALARM_COUNTS VARIABLE=hefalarmclear_count VALUE=0
  SET_GCODE_VARIABLE MACRO=_HEF_ALARM_COUNTS VARIABLE=hefalarm_checks VALUE=0
  M118 HEF Alarm inittiated

[delayed_gcode _HEF_ALARM_INIT]
initial_duration: 1
gcode:
  _HEF_ALARM_COUNTS
  UPDATE_DELAYED_GCODE ID=_HEF_ALARM_CHECK DURATION=5

[gcode_macro _HEF_ALARM_SET]
gcode:
  M118 HEF_ALARM_SET

[gcode_macro _HEF_ALARM_CLEAR]
gcode:
  M118 HEF_ALARM_CLEAR

[delayed_gcode _HEF_ALARM_CHECK]
gcode:
  {% set hefvariables = printer["gcode_macro _HEF_ALARM_COUNTS"] %}
#  UPDATE_DELAYED_GCODE ID=_HEF_ALARM_CHECK DURATION=1

  {% if hefvariables.verbose == True %}
    M118 HEF alarm check started
  {% endif %}

  SET_GCODE_VARIABLE MACRO=_HEF_ALARM_COUNTS VARIABLE=hefalarm_checks VALUE={hefvariables.hefalarm_checks + 1}

  #button is pressed
  {% if printer["gcode_button HEF_FAN"].state == "PRESSED" %}
    SET_GCODE_VARIABLE MACRO=_HEF_ALARM_COUNTS VARIABLE=hefalarmset_count VALUE={hefvariables.hefalarmset_count + 1}
    SET_GCODE_VARIABLE MACRO=_HEF_ALARM_COUNTS VARIABLE=hefalarmclear_count VALUE=0
    {% if hefvariables.verbose == True %}
      M118 HEF alarm check ALARM Pressed increasing alarm set count
      M118 HEF alarm check set count increased from {hefvariables.hefalarmset_count} to {hefvariables.hefalarmset_count+1}
      M118 HEF alarm check check number {hefvariables.hefalarm_checks + 1}
    {% endif %}

  #button is not pressed
  {% elif hefvariables.hefalarmset_count != 0 %}
    SET_GCODE_VARIABLE MACRO=_HEF_ALARM_COUNTS VARIABLE=hefalarmclear_count VALUE={hefvariables.hefalarmclear_count + 1}
    {% if hefvariables.verbose == True %}
      M118 HEF alarm check ALARM not pressed increasing alarm clear count
      M118 HEF alarm check clear count increased from {hefvariables.hefalarmclear_count} to {hefvariables.hefalarmclear_count+1}
      M118 HEF alarm check check number {hefvariables.hefalarm_checks + 1}
    {% endif %}
  {% endif %}

  #checks if the max check were reached, if they are clear set check
  {% if (hefvariables.hefalarmclear_count > hefvariables.hefalarm_maxchecks ) and (hefvariables.hefalarmset_count != 0)%}
    {% if hefvariables.verbose == True %}
      M118 HEF alarm check max checks reached, clearing set count
    {% endif %}
    _HEF_ALARM_COUNTS

  #check if there were more than the required alarms
  {% elif hefvariables.hefalarmset_count >= hefvariables.hefalarm_threshold %}
    {% if hefvariables.verbose == True %}
      M118 HEF alarm check threshold reached, triggering fan error script
    {% endif %}
    #trigger fan error macro
    UPDATE_DELAYED_GCODE id=_HEF_ALARM DURATION=1
    #reset counters
    _HEF_ALARM_COUNTS
  {% endif %}