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Fan Reference Configuration

Driver Fan​

  • There are two configuration methods for the driver fan

  • The first method activates the fan as soon as a motor moves after self-configuration

  • The second method runs the fan directly on startup

  • First Method

  • The 1 in value:1 indicates that it turns on when connected to Klipper

[output_pin driver_fan]
pin: PF7
value:1
  • Second Method
[controller_fan driver_fan]      # Driver cooling fan
pin: 
cycle_time: 0.00003              # Cycle time
max_power: 1.0                   # Maximum power
shutdown_speed: 0.0              # Shutdown speed
fan_speed: 0.9                   # Fan speed when heater or stepper driver is active (0.0 to 1.0). Default is 1.0.
idle_timeout: 90                 # Time in seconds to keep the fan running after the stepper driver or heater is no longer active. Default is 30 seconds.
idle_speed: 0.4                  # Fan speed after the stepper driver is no longer active and before idle_timeout is reached (0.0 to 1.0). Default is fan_speed.
stepper: stepper_x               # Active motors
#Define the name of the heater/stepper configuration section associated with this fan. 
#If a comma-separated list of heater/stepper names is provided here, the fan will be enabled when any of the given heaters/steppers are enabled.
#The default heater is "extruder", and the default stepper is all steppers.

7040 Fan​

  • Mainly introduces the solution for fans that run on startup
Info
  • This is only a brief explanation
  • During firmware compilation, add the PWM signal pin and invert its state
  • For testing with SUPER8_PRO, use pin PF8, and add !PF8 in the GPIO pins to set at micro-controller startup option during firmware compilation
  • Please note that the ! entered should be an English exclamation mark
  • The same applies to other motherboards
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[fan]
##    Print Cooling Fan 
pin:
max_power: 0.9
cycle_time: 0.002
hardware_pwm: false
shutdown_speed: 0

Multiple Fans Sharing Pin Configuration​

  • Not applicable to stepper motor pins 
    [multi_pin my_fan]
    pins:PA1,PA2,PA3,PA4

    [fan]
    pin:multi_pin:my_fan
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