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-rw-r--r--klippy/fan.py7
1 files changed, 4 insertions, 3 deletions
diff --git a/klippy/fan.py b/klippy/fan.py
index bd66f7b5..54cace6c 100644
--- a/klippy/fan.py
+++ b/klippy/fan.py
@@ -11,21 +11,22 @@ class PrinterFan:
def __init__(self, printer, config):
self.last_fan_value = 0.
self.last_fan_time = 0.
+ self.max_power = config.getfloat('max_power', 1., above=0., maxval=1.)
self.kick_start_time = config.getfloat('kick_start_time', 0.1, minval=0.)
pin = config.get('pin')
hard_pwm = config.getint('hard_pwm', 0)
self.mcu_fan = printer.mcu.create_pwm(pin, PWM_CYCLE_TIME, hard_pwm, 0.)
# External commands
def set_speed(self, print_time, value):
- value = max(0., min(1., value))
+ value = max(0., min(self.max_power, value))
if value == self.last_fan_value:
return
mcu_time = self.mcu_fan.print_to_mcu_time(print_time)
mcu_time = max(self.last_fan_time + FAN_MIN_TIME, mcu_time)
- if (value and value < 1.
+ if (value and value < self.max_power
and not self.last_fan_value and self.kick_start_time):
# Run fan at full speed for specified kick_start_time
- self.mcu_fan.set_pwm(mcu_time, 1.)
+ self.mcu_fan.set_pwm(mcu_time, self.max_power)
mcu_time += self.kick_start_time
self.mcu_fan.set_pwm(mcu_time, value)
self.last_fan_time = mcu_time