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-rw-r--r--klippy/extruder.py11
1 files changed, 9 insertions, 2 deletions
diff --git a/klippy/extruder.py b/klippy/extruder.py
index 4abbb7dd..12f43141 100644
--- a/klippy/extruder.py
+++ b/klippy/extruder.py
@@ -59,8 +59,15 @@ class PrinterExtruder:
prev_pressure_d += extra_accel_d
# Update decel and retract parameters when decelerating
if decel_t:
- npd = move.end_v * move_extrude_r * self.pressure_advance
- extra_decel_d = prev_pressure_d - npd
+ if move.corner_min:
+ npd = move.corner_max*move_extrude_r * self.pressure_advance
+ extra_decel_d = prev_pressure_d - npd
+ if move.end_v > move.corner_min:
+ extra_decel_d *= ((move.cruise_v - move.end_v)
+ / (move.cruise_v - move.corner_min))
+ else:
+ npd = move.end_v * move_extrude_r * self.pressure_advance
+ extra_decel_d = prev_pressure_d - npd
if extra_decel_d > 0.:
extra_decel_v = extra_decel_d / decel_t
decel_v -= extra_decel_v