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-rw-r--r--klippy/extras/pid_calibrate.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/klippy/extras/pid_calibrate.py b/klippy/extras/pid_calibrate.py
index bd2b29d6..99f6da71 100644
--- a/klippy/extras/pid_calibrate.py
+++ b/klippy/extras/pid_calibrate.py
@@ -59,7 +59,7 @@ class ControlAutoTune:
# Heater control
def set_pwm(self, read_time, value):
if value != self.last_pwm:
- self.pwm_samples.append((read_time + heater.PWM_DELAY, value))
+ self.pwm_samples.append((read_time + self.heater.pwm_delay, value))
self.last_pwm = value
self.heater.set_pwm(read_time, value)
def temperature_callback(self, read_time, temp):