126 lines
3.9 KiB
INI
126 lines
3.9 KiB
INI
############### Config options ##################
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[gcode_macro _BEDFANVARS]
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variable_threshold: 100 # If bed temp target is above this threshold, fans will be enabled. If temp is set to below this threshold, fans will be disabled.
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variable_fast: 0.6 # Fan speed once bed temp is reached
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variable_slow: 0.2 # Fan speed while bed is heating
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gcode:
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########## Bed Fans #########
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[fan_generic BedFans]
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pin: PB11
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#cycle_time: 0.05
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kick_start_time: 0.5
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########## Aliases #########
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[gcode_macro BEDFANSSLOW]
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gcode:
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# Vars
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{% set SLOW = printer["gcode_macro _BEDFANVARS"].slow|float %}
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SET_FAN_SPEED FAN=BedFans SPEED={SLOW}
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[gcode_macro BEDFANSFAST]
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gcode:
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# Vars
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{% set FAST = printer["gcode_macro _BEDFANVARS"].fast|float %}
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SET_FAN_SPEED FAN=BedFans SPEED={FAST}
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[gcode_macro BEDFANSOFF]
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gcode:
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SET_FAN_SPEED FAN=BedFans SPEED=0
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############ Command overrides ############
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# Override, set fan speeds to low and start monitoring loop.
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[gcode_macro SET_HEATER_TEMPERATURE]
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rename_existing: _SET_HEATER_TEMPERATURE
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gcode:
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# Parameters
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{% set HEATER = params.HEATER|default("None") %}
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{% set TARGET = params.TARGET|default(0)|int %}
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# Vars
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{% set THRESHOLD = printer["gcode_macro _BEDFANVARS"].threshold|int %}
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{% if HEATER|lower == "extruder" %}
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M104 S{TARGET}
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{% elif HEATER|lower == "heater_bed" %}
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M99140 S{TARGET}
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{% else %}
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{action_respond_info("Heater %s not supported" % HEATER)}
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{% endif %}
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# Set fans to low if heater_bed temp is requested above threshold temp, and kick off monitoring loop.
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{% if HEATER|lower == "heater_bed" %}
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{% if TARGET >= THRESHOLD %}
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BEDFANSSLOW
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UPDATE_DELAYED_GCODE ID=bedfanloop DURATION=1
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{% else %}
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BEDFANSOFF
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UPDATE_DELAYED_GCODE ID=bedfanloop DURATION=0 # Cancel bed fan loop if it's running
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{% endif %}
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{% endif %}
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# Override M190 (Wait for Bed Temperature)
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# As a bonus, use TEMPERATURE_WAIT so we don't have to wait for PID to level off.
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[gcode_macro M190]
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rename_existing: M99190
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gcode:
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# Parameters
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{% set S = params.S|int %}
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# Vars
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{% set THRESHOLD = printer["gcode_macro _BEDFANVARS"].threshold|int %}
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{% if S >= THRESHOLD %}
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BEDFANSSLOW # >= Threshold temp: Low speed fans while heating
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{% else %}
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BEDFANSOFF # < Threshold temp: Turn bed fans off
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{% endif %}
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M140 {% for p in params
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%}{'%s%s' % (p, params[p])}{%
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endfor %} # Set bed temp
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{% if S != 0 %}
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TEMPERATURE_WAIT SENSOR=heater_bed MINIMUM={S|int} MAXIMUM={S|int + 5} # Wait for bed temp within 5 degrees
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{% endif %}
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# Post-heating fan speeds
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{% if S >= THRESHOLD %}
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BEDFANSFAST # >= Threshold temp: Higher speed fans after heating finished
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{% endif %}
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# Replace M140 (Set Bed Temperature) to just be an alias of SET_HEATER_TEMPERATURE (which has associated bed fan logic if enabled)
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[gcode_macro M140]
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rename_existing: M99140
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gcode:
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# Parameters
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{% set S = params.S|float %}
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SET_HEATER_TEMPERATURE HEATER=heater_bed TARGET={S}
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# Replace TURN_OFF_HEATERS
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[gcode_macro TURN_OFF_HEATERS]
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rename_existing: _TURN_OFF_HEATERS
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gcode:
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BEDFANSOFF
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_TURN_OFF_HEATERS
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################ Monitoring loop #####################
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# Turns bed fans to "fast" speed once target bed temp is reached.
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[delayed_gcode bedfanloop]
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gcode:
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# Vars
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{% set THRESHOLD = printer["gcode_macro _BEDFANVARS"].threshold|int %}
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{% if printer.heater_bed.target >= THRESHOLD %} # Continue only if target temp greater than threshold.
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{% if printer.heater_bed.temperature|int >= (printer.heater_bed.target|int - 1) %}
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BEDFANSFAST # If within 1 degree of target temp: Higher speed fans
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{% else %}
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UPDATE_DELAYED_GCODE ID=bedfanloop DURATION=5 # If temp not reached yet: loop again
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{% endif %}
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{% endif %}
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