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-rw-r--r--klippy/extras/output_pin.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/klippy/extras/output_pin.py b/klippy/extras/output_pin.py
index b59611fb..8b41aca7 100644
--- a/klippy/extras/output_pin.py
+++ b/klippy/extras/output_pin.py
@@ -91,7 +91,7 @@ class PrinterOutputPin:
systime = self.reactor.monotonic()
print_time = self.mcu_pin.get_mcu().estimated_print_time(systime)
- time_diff = print_time - (self.last_print_time + self.resend_interval)
+ time_diff = (self.last_print_time + self.resend_interval) - print_time
if time_diff > 0.:
# Reschedule for resend time
return systime + time_diff