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66 lines
2.4 KiB
Markdown
66 lines
2.4 KiB
Markdown
# Chamber Temperature Control
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OrcaSlicer use `M141/M191` command to control active chamber heater.
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If your Filament's `Activate temperature control` and your printer `Support control chamber temperature` option are checked , OrcaSlicer will insert `M191` command at the beginning of the gcode (before `Machine G-code`).
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> [!NOTE]
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> If the machine is equipped with an auxiliary fan, OrcaSlicer will automatically activate the fan during the heating period to help circulate air in the chamber.
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## Using Chamber Temperature Variables in Machine G-code
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You can use chamber temperature variables in your `Machine G-code` to control the chamber temperature manually, if desired:
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- To set the chamber temperature to the value specified for the first filament:
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```gcode
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M191 S{chamber_temperature[0]}
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```
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- To set the chamber temperature to the highest value specified across all filaments:
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```gcode
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M191 S{overall_chamber_temperature}
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```
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## Klipper
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If you are using Klipper, you can define these macros to control the active chamber heater.
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Bellow is a reference configuration for Klipper.
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> [!IMPORTANT]
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> Don't forget to change the pin name/values to the actual values you are using in the configuration.
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```gcode
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[heater_generic chamber_heater]
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heater_pin:PB10
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max_power:1.0
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# Orca note: here the temperature sensor should be the sensor you are using for chamber temperature, not the PTC sensor
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sensor_type:NTC 100K MGB18-104F39050L32
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sensor_pin:PA1
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control = pid
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pid_Kp = 63.418
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pid_ki = 0.960
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pid_kd = 1244.716
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min_temp:0
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max_temp:70
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[gcode_macro M141]
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gcode:
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SET_HEATER_TEMPERATURE HEATER=chamber_heater TARGET={params.S|default(0)}
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[gcode_macro M191]
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gcode:
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{% set s = params.S|float %}
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{% if s == 0 %}
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# If target temperature is 0, do nothing
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M117 Chamber heating cancelled
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{% else %}
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SET_HEATER_TEMPERATURE HEATER=chamber_heater TARGET={s}
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# Orca: uncomment the following line if you want to use heat bed to assist chamber heating
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# M140 S100
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TEMPERATURE_WAIT SENSOR="heater_generic chamber_heater" MINIMUM={s-1} MAXIMUM={s+1}
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M117 Chamber at target temperature
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{% endif %}
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```
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