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Fix mixing extruder filament change (#13803)

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This commit is contained in:
Thomas Moore
2019-05-01 22:55:58 -04:00
committed by Scott Lahteine
parent bf54251a10
commit ee243e4edf
15 changed files with 182 additions and 52 deletions
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15
Marlin/src/feature/pause.cpp
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@@ -302,16 +302,22 @@ bool load_filament(const float &slow_load_length/*=0*/, const float &fast_load_l
*/
bool unload_filament(const float &unload_length, const bool show_lcd/*=false*/,
const PauseMode mode/*=PAUSE_MODE_PAUSE_PRINT*/
#if BOTH(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
, const float &mix_multiplier/*=1.0*/
#endif
) {
#if !HAS_LCD_MENU
UNUSED(show_lcd);
#endif
#if !BOTH(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
constexpr float mix_multiplier = 1.0;
#endif
if (!ensure_safe_temperature(mode)) {
#if HAS_LCD_MENU
if (show_lcd) lcd_pause_show_message(PAUSE_MESSAGE_STATUS);
#endif
return false;
}
@@ -320,13 +326,14 @@ bool unload_filament(const float &unload_length, const bool show_lcd/*=false*/,
#endif
// Retract filament
do_pause_e_move(-FILAMENT_UNLOAD_RETRACT_LENGTH, PAUSE_PARK_RETRACT_FEEDRATE);
do_pause_e_move(-(FILAMENT_UNLOAD_RETRACT_LENGTH) * mix_multiplier, (PAUSE_PARK_RETRACT_FEEDRATE) * mix_multiplier);
// Wait for filament to cool
safe_delay(FILAMENT_UNLOAD_DELAY);
// Quickly purge
do_pause_e_move(FILAMENT_UNLOAD_RETRACT_LENGTH + FILAMENT_UNLOAD_PURGE_LENGTH, planner.settings.max_feedrate_mm_s[E_AXIS]);
do_pause_e_move((FILAMENT_UNLOAD_RETRACT_LENGTH + FILAMENT_UNLOAD_PURGE_LENGTH) * mix_multiplier,
planner.settings.max_feedrate_mm_s[E_AXIS] * mix_multiplier);
// Unload filament
#if FILAMENT_CHANGE_UNLOAD_ACCEL > 0
@@ -334,7 +341,7 @@ bool unload_filament(const float &unload_length, const bool show_lcd/*=false*/,
planner.settings.retract_acceleration = FILAMENT_CHANGE_UNLOAD_ACCEL;
#endif
do_pause_e_move(unload_length, FILAMENT_CHANGE_UNLOAD_FEEDRATE);
do_pause_e_move(unload_length * mix_multiplier, (FILAMENT_CHANGE_UNLOAD_FEEDRATE) * mix_multiplier);
#if FILAMENT_CHANGE_FAST_LOAD_ACCEL > 0
planner.settings.retract_acceleration = saved_acceleration;