Merge pull request #3662 from thinkyhead/rc_fixup_auto_filament_change

Rewritten FILAMENT_CHANGE_ENABLE feature

.travis.yml

@@ -161,11 +161,11 @@ script:
   - opt_set MOTHERBOARD BOARD_MINIRAMBO
   - build_marlin
   #
-  # Test FILAMENTCHANGEENABLE and LCD_INFO_MENU
+  # Test FILAMENT_CHANGE_FEATURE and LCD_INFO_MENU
   #
   - restore_configs
   - opt_enable ULTIMAKERCONTROLLER
-  - opt_enable_adv FILAMENTCHANGEENABLE LCD_INFO_MENU
+  - opt_enable_adv FILAMENT_CHANGE_FEATURE LCD_INFO_MENU
   - build_marlin
   #
   # Enable filament sensor

Marlin/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/Marlin.h

@@ -123,8 +123,8 @@ FORCE_INLINE void serialprintPGM(const char* str) {
 }
 
 void idle(
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    bool no_stepper_sleep=false  // pass true to keep steppers from disabling on timeout
+    bool no_stepper_sleep = false  // pass true to keep steppers from disabling on timeout
   #endif
 );
 
@@ -346,6 +346,15 @@ float code_value_temp_diff();
   extern int meas_delay_cm; //delay distance
 #endif
 
+#if ENABLED(FILAMENT_CHANGE_FEATURE)
+  enum FilamentChangeMenuResponse {
+    FILAMENT_CHANGE_RESPONSE_WAIT_FOR,
+    FILAMENT_CHANGE_RESPONSE_EXTRUDE_MORE,
+    FILAMENT_CHANGE_RESPONSE_RESUME_PRINT
+  };
+  extern FilamentChangeMenuResponse filament_change_menu_response;
+#endif
+
 #if ENABLED(PID_ADD_EXTRUSION_RATE)
   extern int lpq_len;
 #endif

Marlin/Marlin_main.cpp

@@ -294,6 +294,7 @@ static char command_queue[BUFSIZE][MAX_CMD_SIZE];
 #endif
 
 const float homing_feedrate[] = HOMING_FEEDRATE;
+
 bool axis_relative_modes[] = AXIS_RELATIVE_MODES;
 int feedrate_multiplier = 100; //100->1 200->2
 int saved_feedrate_multiplier;
@@ -490,6 +491,10 @@ static uint8_t target_extruder;
   static bool filament_ran_out = false;
 #endif
 
+#if ENABLED(FILAMENT_CHANGE_FEATURE)
+  FilamentChangeMenuResponse filament_change_menu_response;
+#endif
+
 static bool send_ok[BUFSIZE];
 
 #if HAS_SERVOS
@@ -1564,9 +1569,8 @@ inline void line_to_z(float zPosition) {
 inline void line_to_destination(float mm_m) {
   planner.buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], mm_m / 60, active_extruder);
 }
-inline void line_to_destination() {
+inline void line_to_destination() { line_to_destination(feedrate); }
-  line_to_destination(feedrate);
+
-}
 /**
  * sync_plan_position
  * Set planner / stepper positions to the cartesian current_position.
@@ -3123,7 +3127,7 @@ inline void gcode_G28() {
   enum MeshLevelingState { MeshReport, MeshStart, MeshNext, MeshSet, MeshSetZOffset, MeshReset };
 
   inline void _mbl_goto_xy(float x, float y) {
-    saved_feedrate = feedrate;
+    float old_feedrate = feedrate;
     feedrate = homing_feedrate[X_AXIS];
 
     current_position[Z_AXIS] = MESH_HOME_SEARCH_Z
@@ -3144,7 +3148,7 @@ inline void gcode_G28() {
       line_to_current_position();
     #endif
 
-    feedrate = saved_feedrate;
+    feedrate = old_feedrate;
     stepper.synchronize();
   }
 
@@ -6131,7 +6135,7 @@ inline void gcode_M503() {
 
 #endif // HAS_BED_PROBE
 
-#if ENABLED(FILAMENTCHANGEENABLE)
+#if ENABLED(FILAMENT_CHANGE_FEATURE)
 
   /**
    * M600: Pause for filament change
@@ -6153,129 +6157,160 @@ inline void gcode_M503() {
       return;
     }
 
-    float lastpos[NUM_AXIS];
+    // Show initial message and wait for synchronize steppers
-    #if ENABLED(DELTA)
+    lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_INIT);
-      float fr60 = feedrate / 60;
+    stepper.synchronize();
-    #endif
 
-    for (int i = 0; i < NUM_AXIS; i++)
+    float lastpos[NUM_AXIS];
+
+    // Save current position of all axes
+    for (uint8_t i = 0; i < NUM_AXIS; i++)
       lastpos[i] = destination[i] = current_position[i];
 
+    // Define runplan for move axes
     #if ENABLED(DELTA)
-      #define RUNPLAN calculate_delta(destination); \
+      #define RUNPLAN(RATE) calculate_delta(destination); \
-                      planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], destination[E_AXIS], fr60, active_extruder);
+                            planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], destination[E_AXIS], RATE, active_extruder);
     #else
-      #define RUNPLAN line_to_destination();
+      #define RUNPLAN(RATE) line_to_destination(RATE * 60);
     #endif
 
-    //retract by E
+    KEEPALIVE_STATE(IN_HANDLER);
+
+    // Initial retract before move to filament change position
     if (code_seen('E')) destination[E_AXIS] += code_value_axis_units(E_AXIS);
-    #ifdef FILAMENTCHANGE_FIRSTRETRACT
+    #if defined(FILAMENT_CHANGE_RETRACT_LENGTH) && FILAMENT_CHANGE_RETRACT_LENGTH > 0
-      else destination[E_AXIS] += FILAMENTCHANGE_FIRSTRETRACT;
+      else destination[E_AXIS] -= FILAMENT_CHANGE_RETRACT_LENGTH;
     #endif
 
-    RUNPLAN;
+    RUNPLAN(FILAMENT_CHANGE_RETRACT_FEEDRATE);
 
-    //lift Z
+    // Lift Z axis
-    if (code_seen('Z')) destination[Z_AXIS] += code_value_axis_units(Z_AXIS);
+    float z_lift = code_seen('Z') ? code_value_axis_units(Z_AXIS) :
-    #ifdef FILAMENTCHANGE_ZADD
+      #if defined(FILAMENT_CHANGE_Z_ADD) && FILAMENT_CHANGE_Z_ADD > 0
-      else destination[Z_AXIS] += FILAMENTCHANGE_ZADD;
+        FILAMENT_CHANGE_Z_ADD
-    #endif
+      #else
+        0
+      #endif
+    ;
 
-    RUNPLAN;
+    if (z_lift > 0) {
+      destination[Z_AXIS] += z_lift;
+      NOMORE(destination[Z_AXIS], Z_MAX_POS);
+      RUNPLAN(FILAMENT_CHANGE_Z_FEEDRATE);
+    }
 
-    //move xy
+    // Move XY axes to filament exchange position
     if (code_seen('X')) destination[X_AXIS] = code_value_axis_units(X_AXIS);
-    #ifdef FILAMENTCHANGE_XPOS
+    #ifdef FILAMENT_CHANGE_X_POS
-      else destination[X_AXIS] = FILAMENTCHANGE_XPOS;
+      else destination[X_AXIS] = FILAMENT_CHANGE_X_POS;
     #endif
 
     if (code_seen('Y')) destination[Y_AXIS] = code_value_axis_units(Y_AXIS);
-    #ifdef FILAMENTCHANGE_YPOS
+    #ifdef FILAMENT_CHANGE_Y_POS
-      else destination[Y_AXIS] = FILAMENTCHANGE_YPOS;
+      else destination[Y_AXIS] = FILAMENT_CHANGE_Y_POS;
     #endif
 
-    RUNPLAN;
+    RUNPLAN(FILAMENT_CHANGE_XY_FEEDRATE);
 
-    if (code_seen('L')) destination[E_AXIS] += code_value_axis_units(E_AXIS);
-    #ifdef FILAMENTCHANGE_FINALRETRACT
-      else destination[E_AXIS] += FILAMENTCHANGE_FINALRETRACT;
-    #endif
-
-    RUNPLAN;
-
-    //finish moves
     stepper.synchronize();
-    //disable extruder steppers so filament can be removed
+    lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_UNLOAD);
+
+    // Unload filament
+    if (code_seen('L')) destination[E_AXIS] += code_value_axis_units(E_AXIS);
+    #if defined(FILAMENT_CHANGE_UNLOAD_LENGTH) && FILAMENT_CHANGE_UNLOAD_LENGTH > 0
+      else destination[E_AXIS] -= FILAMENT_CHANGE_UNLOAD_LENGTH;
+    #endif
+
+    RUNPLAN(FILAMENT_CHANGE_UNLOAD_FEEDRATE);
+
+    // Synchronize steppers and then disable extruders steppers for manual filament changing
+    stepper.synchronize();
     disable_e0();
     disable_e1();
     disable_e2();
     disable_e3();
     delay(100);
-    LCD_ALERTMESSAGEPGM(MSG_FILAMENTCHANGE);
+
-    #if DISABLED(AUTO_FILAMENT_CHANGE)
+    millis_t next_tick = 0;
-      millis_t next_tick = 0;
+
-    #endif
+    // Wait for filament insert by user and press button
-    KEEPALIVE_STATE(PAUSED_FOR_USER);
+    lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_INSERT);
+
     while (!lcd_clicked()) {
-      #if DISABLED(AUTO_FILAMENT_CHANGE)
+      #if HAS_BUZZER
         millis_t ms = millis();
-        if (ELAPSED(ms, next_tick)) {
+        if (ms >= next_tick) {
-          lcd_quick_feedback();
+          buzzer.tone(300, 2000);
-          next_tick = ms + 2500UL; // feedback every 2.5s while waiting
+          next_tick = ms + 2500; // Beep every 2.5s while waiting
         }
-        idle(true);
-      #else
-        current_position[E_AXIS] += AUTO_FILAMENT_CHANGE_LENGTH;
-        destination[E_AXIS] = current_position[E_AXIS];
-        line_to_destination(AUTO_FILAMENT_CHANGE_FEEDRATE);
-        stepper.synchronize();
       #endif
-    } // while(!lcd_clicked)
+      idle(true);
-    KEEPALIVE_STATE(IN_HANDLER);
+    }
-    lcd_quick_feedback(); // click sound feedback
+    delay(100);
+    while (lcd_clicked()) idle(true);
+    delay(100);
 
-    #if ENABLED(AUTO_FILAMENT_CHANGE)
+    // Show load message
-      current_position[E_AXIS] = 0;
+    lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_LOAD);
-      stepper.synchronize();
-    #endif
 
-    //return to normal
+    // Load filament
     if (code_seen('L')) destination[E_AXIS] -= code_value_axis_units(E_AXIS);
-    #ifdef FILAMENTCHANGE_FINALRETRACT
+    #if defined(FILAMENT_CHANGE_LOAD_LENGTH) && FILAMENT_CHANGE_LOAD_LENGTH > 0
-      else destination[E_AXIS] -= FILAMENTCHANGE_FINALRETRACT;
+      else destination[E_AXIS] += FILAMENT_CHANGE_LOAD_LENGTH;
     #endif
 
-    current_position[E_AXIS] = destination[E_AXIS]; //the long retract of L is compensated by manual filament feeding
+    RUNPLAN(FILAMENT_CHANGE_LOAD_FEEDRATE);
-    sync_plan_position_e();
+    stepper.synchronize();
 
-    RUNPLAN; //should do nothing
+    #if defined(FILAMENT_CHANGE_EXTRUDE_LENGTH) && FILAMENT_CHANGE_EXTRUDE_LENGTH > 0
+      do {
+        // Extrude filament to get into hotend
+        lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_EXTRUDE);
+        destination[E_AXIS] += FILAMENT_CHANGE_EXTRUDE_LENGTH;
+        RUNPLAN(FILAMENT_CHANGE_EXTRUDE_FEEDRATE);
+        stepper.synchronize();
+        // Ask user if more filament should be extruded
+        KEEPALIVE_STATE(PAUSED_FOR_USER);
+        lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_OPTION);
+        while (filament_change_menu_response == FILAMENT_CHANGE_RESPONSE_WAIT_FOR) idle(true);
+        KEEPALIVE_STATE(IN_HANDLER);
+      } while (filament_change_menu_response != FILAMENT_CHANGE_RESPONSE_RESUME_PRINT);
+    #endif
 
-    lcd_reset_alert_level();
+    lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_RESUME);
+
+    KEEPALIVE_STATE(IN_HANDLER);
+
+    // Set extruder to saved position
+    current_position[E_AXIS] = lastpos[E_AXIS];
+    destination[E_AXIS] = lastpos[E_AXIS];
+    planner.set_e_position_mm(current_position[E_AXIS]);
 
     #if ENABLED(DELTA)
       // Move XYZ to starting position, then E
       calculate_delta(lastpos);
-      planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], destination[E_AXIS], fr60, active_extruder);
+      planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], destination[E_AXIS], FILAMENT_CHANGE_XY_FEEDRATE, active_extruder);
-      planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], lastpos[E_AXIS], fr60, active_extruder);
+      planner.buffer_line(delta[X_AXIS], delta[Y_AXIS], delta[Z_AXIS], lastpos[E_AXIS], FILAMENT_CHANGE_XY_FEEDRATE, active_extruder);
     #else
       // Move XY to starting position, then Z, then E
       destination[X_AXIS] = lastpos[X_AXIS];
       destination[Y_AXIS] = lastpos[Y_AXIS];
-      line_to_destination();
+      RUNPLAN(FILAMENT_CHANGE_XY_FEEDRATE);
       destination[Z_AXIS] = lastpos[Z_AXIS];
-      line_to_destination();
+      RUNPLAN(FILAMENT_CHANGE_Z_FEEDRATE);
-      destination[E_AXIS] = lastpos[E_AXIS];
-      line_to_destination();
     #endif
+    stepper.synchronize();
 
     #if ENABLED(FILAMENT_RUNOUT_SENSOR)
       filament_ran_out = false;
     #endif
 
+    // Show status screen
+    lcd_filament_change_show_message(FILAMENT_CHANGE_MESSAGE_STATUS);
   }
 
-#endif // FILAMENTCHANGEENABLE
+#endif // FILAMENT_CHANGE_FEATURE
 
 #if ENABLED(DUAL_X_CARRIAGE)
 
@@ -6464,11 +6499,11 @@ inline void gcode_T(uint8_t tmp_extruder) {
 
   #if HOTENDS > 1
 
-    float stored_feedrate = feedrate;
+    float old_feedrate = feedrate;
 
     if (code_seen('F')) {
       float next_feedrate = code_value_axis_units(X_AXIS);
-      if (next_feedrate > 0.0) stored_feedrate = feedrate = next_feedrate;
+      if (next_feedrate > 0.0) old_feedrate = feedrate = next_feedrate;
     }
     else
       feedrate = XY_PROBE_FEEDRATE;
@@ -6624,7 +6659,7 @@ inline void gcode_T(uint8_t tmp_extruder) {
       enable_solenoid_on_active_extruder();
     #endif // EXT_SOLENOID
 
-    feedrate = stored_feedrate;
+    feedrate = old_feedrate;
 
   #else // !HOTENDS > 1
 
@@ -7232,11 +7267,11 @@ void process_next_command() {
           break;
       #endif // HAS_BED_PROBE
 
-      #if ENABLED(FILAMENTCHANGEENABLE)
+      #if ENABLED(FILAMENT_CHANGE_FEATURE)
         case 600: //Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
           gcode_M600();
           break;
-      #endif // FILAMENTCHANGEENABLE
+      #endif // FILAMENT_CHANGE_FEATURE
 
       #if ENABLED(DUAL_X_CARRIAGE)
         case 605:
@@ -7993,14 +8028,14 @@ void disable_all_steppers() {
  * Standard idle routine keeps the machine alive
  */
 void idle(
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
     bool no_stepper_sleep/*=false*/
   #endif
 ) {
   lcd_update();
   host_keepalive();
   manage_inactivity(
-    #if ENABLED(FILAMENTCHANGEENABLE)
+    #if ENABLED(FILAMENT_CHANGE_FEATURE)
       no_stepper_sleep
     #endif
   );

Marlin/SanityCheck.h

@@ -124,8 +124,8 @@
 /**
  * Filament Change with Extruder Runout Prevention
  */
-#if ENABLED(FILAMENTCHANGEENABLE) && ENABLED(EXTRUDER_RUNOUT_PREVENT)
+#if ENABLED(FILAMENT_CHANGE_FEATURE) && ENABLED(EXTRUDER_RUNOUT_PREVENT)
-  #error "EXTRUDER_RUNOUT_PREVENT currently incompatible with FILAMENTCHANGE."
+  #error "EXTRUDER_RUNOUT_PREVENT is incompatible with FILAMENT_CHANGE_FEATURE."
 #endif
 
 /**
@@ -623,6 +623,8 @@
   #error "PROBE_SERVO_DEACTIVATION_DELAY is deprecated. Use DEACTIVATE_SERVOS_AFTER_MOVE instead."
 #elif defined(SERVO_DEACTIVATION_DELAY)
   #error "SERVO_DEACTIVATION_DELAY is deprecated. Use SERVO_DELAY instead."
+#elif ENABLED(FILAMENTCHANGEENABLE)
+  #error "FILAMENTCHANGEENABLE is now FILAMENT_CHANGE_FEATURE. Please update your configuration."
 #endif
 
 #endif //SANITYCHECK_H

Marlin/dogm_lcd_implementation.h

@@ -473,14 +473,14 @@ static void lcd_implementation_mark_as_selected(uint8_t row, bool isSelected) {
   u8g.setPrintPos((START_ROW) * (DOG_CHAR_WIDTH), (row + 1) * (DOG_CHAR_HEIGHT));
 }
 
-#if ENABLED(LCD_INFO_MENU)
+#if ENABLED(LCD_INFO_MENU) || ENABLED(FILAMENT_CHANGE_FEATURE)
 
-  static void lcd_implementation_drawmenu_static(uint8_t row, const char* pstr, const char* valstr=NULL, bool center=false) {
+  static void lcd_implementation_drawmenu_static(uint8_t row, const char* pstr, const char* valstr=NULL, bool center=true) {
     char c;
     int8_t n = LCD_WIDTH;
     u8g.setPrintPos(0, (row + 1) * (DOG_CHAR_HEIGHT));
     u8g.setColorIndex(1); // normal text
-    if (center) {
+    if (center && !valstr) {
       int8_t pad = (LCD_WIDTH - lcd_strlen_P(pstr)) / 2;
       while (--pad >= 0) { lcd_print(' '); n--; }
     }
@@ -495,10 +495,9 @@ static void lcd_implementation_mark_as_selected(uint8_t row, bool isSelected) {
     while (n-- > 0) lcd_print(' ');
   }
 
-#endif // LCD_INFO_MENU
+#endif // LCD_INFO_MENU || FILAMENT_CHANGE_FEATURE
 
 static void lcd_implementation_drawmenu_generic(bool isSelected, uint8_t row, const char* pstr, char pre_char, char post_char) {
-  UNUSED(pstr);
   UNUSED(pre_char);
 
   char c;

Marlin/example_configurations/Felix/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/Hephestos/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/Hephestos_2/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/K8200/Configuration_adv.h

@@ -557,16 +557,30 @@ const unsigned int dropsegments = 2; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/RigidBot/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/SCARA/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/TAZ4/Configuration_adv.h

@@ -559,16 +559,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  #define FILAMENTCHANGEENABLE
+  #define FILAMENT_CHANGE_FEATURE               // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    //#define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    //#define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    //#define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/WITBOX/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/delta/biv2.5/Configuration_adv.h

@@ -553,16 +553,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/delta/generic/Configuration_adv.h

@@ -553,16 +553,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

@@ -552,16 +552,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

@@ -557,16 +557,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

@@ -553,16 +553,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/makibox/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

@@ -551,16 +551,30 @@ const unsigned int dropsegments = 5; //everything with less than this number of
 
 // Add support for experimental filament exchange support M600; requires display
 #if ENABLED(ULTIPANEL)
-  //#define FILAMENTCHANGEENABLE
+  // #define FILAMENT_CHANGE_FEATURE             // Enable filament exchange menu and M600 g-code (used for runout sensor too)
-  #if ENABLED(FILAMENTCHANGEENABLE)
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
-    #define FILAMENTCHANGE_XPOS 3
+    #define FILAMENT_CHANGE_X_POS 3             // X position of hotend
-    #define FILAMENTCHANGE_YPOS 3
+    #define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
-    #define FILAMENTCHANGE_ZADD 10
+    #define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
-    #define FILAMENTCHANGE_FIRSTRETRACT -2
+    #define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
-    #define FILAMENTCHANGE_FINALRETRACT -100
+    #define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
-    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
-    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+                                                // It is a short retract used immediately after print interrupt before move to filament exchange position
-    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
+    #define FILAMENT_CHANGE_RETRACT_FEEDRATE 60 // Initial retract feedrate in mm/s
+    #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                                // Longer length for bowden printers to unload filament from whole bowden tube,
+                                                // shorter lenght for printers without bowden to unload filament from extruder only,
+                                                // 0 to disable unloading for manual unloading
+    #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
+    #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
+                                                // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                                // Short or zero length for printers without bowden where loading is not used
+    #define FILAMENT_CHANGE_LOAD_FEEDRATE 10    // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+    #define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                                // 0 to disable for manual extrusion
+                                                // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                                // or until outcoming filament color is not clear for filament color change
+    #define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 3  // Extrude filament feedrate in mm/s - must be slower than load feedrate
   #endif
 #endif
 

Marlin/language_cz.h

@@ -200,4 +200,27 @@
 #define MSG_DELTA_CALIBRATE_Z               "Kalibrovat Z"
 #define MSG_DELTA_CALIBRATE_CENTER          "Kalibrovat Stred"
 
+#define MSG_FILAMENT_CHANGE_HEADER          "VYMENA FILAMENTU"
+#define MSG_FILAMENT_CHANGE_INIT_1          "Cekejte prosim"
+#define MSG_FILAMENT_CHANGE_INIT_2          "na zahajeni"
+#define MSG_FILAMENT_CHANGE_INIT_3          "vymeny filamentu"
+#define MSG_FILAMENT_CHANGE_UNLOAD_1        "Cekejte prosim"
+#define MSG_FILAMENT_CHANGE_UNLOAD_2        "na vysunuti"
+#define MSG_FILAMENT_CHANGE_UNLOAD_3        "filamentu"
+#define MSG_FILAMENT_CHANGE_INSERT_1        "Vlozte filament"
+#define MSG_FILAMENT_CHANGE_INSERT_2        "a stisknete"
+#define MSG_FILAMENT_CHANGE_INSERT_3        "tlacitko..."
+#define MSG_FILAMENT_CHANGE_LOAD_1          "Cekejte prosim"
+#define MSG_FILAMENT_CHANGE_LOAD_2          "na zavedeni"
+#define MSG_FILAMENT_CHANGE_LOAD_3          "filamentu"
+#define MSG_FILAMENT_CHANGE_EXTRUDE_1       "Cekejte prosim"
+#define MSG_FILAMENT_CHANGE_EXTRUDE_2       "na vytlaceni"
+#define MSG_FILAMENT_CHANGE_EXTRUDE_3       "filamentu"
+#define MSG_FILAMENT_CHANGE_OPTION_HEADER   "CO DAL?"
+#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  "Jeste vytlacit"
+#define MSG_FILAMENT_CHANGE_OPTION_RESUME   "Obnovit tisk"
+#define MSG_FILAMENT_CHANGE_RESUME_1        "Cekejte prosim"
+#define MSG_FILAMENT_CHANGE_RESUME_2        "na pokracovani"
+#define MSG_FILAMENT_CHANGE_RESUME_3        "tisku"
+
 #endif // LANGUAGE_CZ_H

Marlin/language_en.h

@@ -563,4 +563,92 @@
   #define MSG_INFO_PSU                        "Power Supply"
 #endif
 
+#ifndef MSG_FILAMENT_CHANGE_HEADER
+  #define MSG_FILAMENT_CHANGE_HEADER          "CHANGE FILAMENT"
+#endif
+#ifndef MSG_FILAMENT_CHANGE_OPTION_HEADER
+  #define MSG_FILAMENT_CHANGE_OPTION_HEADER   "CHANGE OPTIONS:"
+#endif
+#ifndef MSG_FILAMENT_CHANGE_OPTION_EXTRUDE
+  #define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  "Extrude more"
+#endif
+#ifndef MSG_FILAMENT_CHANGE_OPTION_RESUME
+  #define MSG_FILAMENT_CHANGE_OPTION_RESUME   "Resume print"
+#endif
+#if LCD_HEIGHT >= 4
+  #ifndef MSG_FILAMENT_CHANGE_INIT_1
+    #define MSG_FILAMENT_CHANGE_INIT_1          "Wait for start"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_INIT_2
+    #define MSG_FILAMENT_CHANGE_INIT_2          "of the filament"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_INIT_3
+    #define MSG_FILAMENT_CHANGE_INIT_3          "change"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_UNLOAD_1
+    #define MSG_FILAMENT_CHANGE_UNLOAD_1        "Wait for"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_UNLOAD_2
+    #define MSG_FILAMENT_CHANGE_UNLOAD_2        "filament unload"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_UNLOAD_3
+    #define MSG_FILAMENT_CHANGE_UNLOAD_3        ""
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_INSERT_1
+    #define MSG_FILAMENT_CHANGE_INSERT_1        "Insert filament"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_INSERT_2
+    #define MSG_FILAMENT_CHANGE_INSERT_2        "and press button"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_INSERT_3
+    #define MSG_FILAMENT_CHANGE_INSERT_3        "to continue..."
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_LOAD_1
+    #define MSG_FILAMENT_CHANGE_LOAD_1          "Wait for"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_LOAD_2
+    #define MSG_FILAMENT_CHANGE_LOAD_2          "filament load"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_LOAD_3
+    #define MSG_FILAMENT_CHANGE_LOAD_3          ""
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_EXTRUDE_1
+    #define MSG_FILAMENT_CHANGE_EXTRUDE_1       "Wait for"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_EXTRUDE_2
+    #define MSG_FILAMENT_CHANGE_EXTRUDE_2       "filament extrude"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_EXTRUDE_3
+    #define MSG_FILAMENT_CHANGE_EXTRUDE_3       ""
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_RESUME_1
+    #define MSG_FILAMENT_CHANGE_RESUME_1        "Wait for print"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_RESUME_2
+    #define MSG_FILAMENT_CHANGE_RESUME_2        "to resume"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_RESUME_3
+    #define MSG_FILAMENT_CHANGE_RESUME_3        ""
+  #endif
+#else // LCD_HEIGHT < 4
+  #ifndef MSG_FILAMENT_CHANGE_INIT_1
+    #define MSG_FILAMENT_CHANGE_INIT_1          "Please wait..."
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_UNLOAD_1
+    #define MSG_FILAMENT_CHANGE_UNLOAD_1        "Ejecting..."
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_INSERT_1
+    #define MSG_FILAMENT_CHANGE_INSERT_1        "Insert and Click"
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_LOAD_1
+    #define MSG_FILAMENT_CHANGE_LOAD_1          "Loading..."
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_EXTRUDE_1
+    #define MSG_FILAMENT_CHANGE_EXTRUDE_1       "Extruding..."
+  #endif
+  #ifndef MSG_FILAMENT_CHANGE_RESUME_1
+    #define MSG_FILAMENT_CHANGE_RESUME_1        "Resuming..."
+  #endif
+#endif // LCD_HEIGHT < 4
+
 #endif // LANGUAGE_EN_H

Marlin/ultralcd.cpp

@@ -128,7 +128,17 @@ uint8_t lcdDrawUpdate = LCDVIEW_CLEAR_CALL_REDRAW; // Set when the LCD needs to
     static void lcd_info_thermistors_menu();
     static void lcd_info_board_menu();
     static void lcd_info_menu();
-  #endif
+  #endif // LCD_INFO_MENU
+
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
+    static void lcd_filament_change_option_menu();
+    static void lcd_filament_change_init_message();
+    static void lcd_filament_change_unload_message();
+    static void lcd_filament_change_insert_message();
+    static void lcd_filament_change_load_message();
+    static void lcd_filament_change_extrude_message();
+    static void lcd_filament_change_resume_message();
+  #endif 
 
   #if HAS_LCD_CONTRAST
     static void lcd_set_contrast();
@@ -791,7 +801,7 @@ static void lcd_status_screen() {
     //
     // Change filament
     //
-    #if ENABLED(FILAMENTCHANGEENABLE)
+    #if ENABLED(FILAMENT_CHANGE_FEATURE)
        MENU_ITEM(gcode, MSG_FILAMENTCHANGE, PSTR("M600"));
     #endif
 
@@ -2036,6 +2046,139 @@ static void lcd_status_screen() {
     }
   #endif // LCD_INFO_MENU
 
+  #if ENABLED(FILAMENT_CHANGE_FEATURE)
+
+    static void lcd_filament_change_resume_print() {
+      filament_change_menu_response = FILAMENT_CHANGE_RESPONSE_RESUME_PRINT;
+      lcdDrawUpdate = 2;
+      lcd_goto_screen(lcd_status_screen);
+    }
+
+    static void lcd_filament_change_extrude_more() {
+      filament_change_menu_response = FILAMENT_CHANGE_RESPONSE_EXTRUDE_MORE;
+    }
+
+    static void lcd_filament_change_option_menu() {
+      START_MENU();
+      #if LCD_HEIGHT > 2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_OPTION_HEADER);
+      #endif
+      MENU_ITEM(function, MSG_FILAMENT_CHANGE_OPTION_RESUME, lcd_filament_change_resume_print);
+      MENU_ITEM(function, MSG_FILAMENT_CHANGE_OPTION_EXTRUDE, lcd_filament_change_extrude_more);
+      END_MENU();
+    }
+
+    static void lcd_filament_change_init_message() {
+      START_MENU();
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER);
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_INIT_1);
+      #ifdef MSG_FILAMENT_CHANGE_INIT_2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_INIT_2);
+      #endif
+      #ifdef MSG_FILAMENT_CHANGE_INIT_3
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_INIT_3);
+      #endif
+      END_MENU();
+    }
+
+    static void lcd_filament_change_unload_message() {
+      START_MENU();
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER);
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_UNLOAD_1);
+      #ifdef MSG_FILAMENT_CHANGE_UNLOAD_2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_UNLOAD_2);
+      #endif
+      #ifdef MSG_FILAMENT_CHANGE_UNLOAD_3
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_UNLOAD_3);
+      #endif
+      END_MENU();
+    }
+
+    static void lcd_filament_change_insert_message() {
+      START_MENU();
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER);
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_INSERT_1);
+      #ifdef MSG_FILAMENT_CHANGE_INSERT_2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_INSERT_2);
+      #endif
+      #ifdef MSG_FILAMENT_CHANGE_INSERT_3
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_INSERT_3);
+      #endif
+      END_MENU();
+    }
+
+    static void lcd_filament_change_load_message() {
+      START_MENU();
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER);
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_LOAD_1);
+      #ifdef MSG_FILAMENT_CHANGE_LOAD_2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_LOAD_2);
+      #endif
+      #ifdef MSG_FILAMENT_CHANGE_LOAD_3
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_LOAD_3);
+      #endif
+      END_MENU();
+    }
+
+    static void lcd_filament_change_extrude_message() {
+      START_MENU();
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER);
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_EXTRUDE_1);
+      #ifdef MSG_FILAMENT_CHANGE_EXTRUDE_2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_EXTRUDE_2);
+      #endif
+      #ifdef MSG_FILAMENT_CHANGE_EXTRUDE_3
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_EXTRUDE_3);
+      #endif
+      END_MENU();
+    }
+
+    static void lcd_filament_change_resume_message() {
+      START_MENU();
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER);
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_RESUME_1);
+      #ifdef MSG_FILAMENT_CHANGE_RESUME_2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_RESUME_2);
+      #endif
+      #ifdef MSG_FILAMENT_CHANGE_RESUME_3
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_RESUME_3);
+      #endif
+      END_MENU();
+    }
+  
+    void lcd_filament_change_show_message(FilamentChangeMessage message) {
+      switch (message) {
+        case FILAMENT_CHANGE_MESSAGE_INIT:
+          defer_return_to_status = true;
+          lcd_goto_screen(lcd_filament_change_init_message);
+          break;
+        case FILAMENT_CHANGE_MESSAGE_UNLOAD:
+          lcd_goto_screen(lcd_filament_change_unload_message);
+          break;
+        case FILAMENT_CHANGE_MESSAGE_INSERT:
+          lcd_goto_screen(lcd_filament_change_insert_message);
+          break;
+        case FILAMENT_CHANGE_MESSAGE_LOAD:
+          lcd_goto_screen(lcd_filament_change_load_message);
+          break;
+        case FILAMENT_CHANGE_MESSAGE_EXTRUDE:
+          lcd_goto_screen(lcd_filament_change_extrude_message);
+          break;
+        case FILAMENT_CHANGE_MESSAGE_OPTION:
+          filament_change_menu_response = FILAMENT_CHANGE_RESPONSE_WAIT_FOR;
+          lcd_goto_screen(lcd_filament_change_option_menu);
+          break;
+        case FILAMENT_CHANGE_MESSAGE_RESUME:
+          lcd_goto_screen(lcd_filament_change_resume_message);
+          break;
+        case FILAMENT_CHANGE_MESSAGE_STATUS:
+          lcd_return_to_status();
+          break;
+      }
+    }
+
+  #endif // FILAMENT_CHANGE_FEATURE
+
   /**
    *
    * Functions for editing single values

Marlin/ultralcd.h

@@ -69,6 +69,21 @@
     void lcd_quick_feedback(); // Audible feedback for a button click - could also be visual
     bool lcd_clicked();
     void lcd_ignore_click(bool b=true);
+
+    #if ENABLED(FILAMENT_CHANGE_FEATURE)
+      enum FilamentChangeMessage {
+        FILAMENT_CHANGE_MESSAGE_INIT,
+        FILAMENT_CHANGE_MESSAGE_UNLOAD,
+        FILAMENT_CHANGE_MESSAGE_INSERT,
+        FILAMENT_CHANGE_MESSAGE_LOAD,
+        FILAMENT_CHANGE_MESSAGE_EXTRUDE,
+        FILAMENT_CHANGE_MESSAGE_OPTION,
+        FILAMENT_CHANGE_MESSAGE_RESUME,
+        FILAMENT_CHANGE_MESSAGE_STATUS
+      };
+      void lcd_filament_change_show_message(FilamentChangeMessage message);
+    #endif // FILAMENT_CHANGE_FEATURE
+
   #else
     FORCE_INLINE void lcd_buttons_update() {}
   #endif

Marlin/ultralcd_implementation_hitachi_HD44780.h

@@ -815,13 +815,13 @@ static void lcd_implementation_status_screen() {
   lcd_print(lcd_status_message);
 }
 
-#if ENABLED(LCD_INFO_MENU)
+#if ENABLED(LCD_INFO_MENU) || ENABLED(FILAMENT_CHANGE_FEATURE)
 
   static void lcd_implementation_drawmenu_static(uint8_t row, const char* pstr, const char *valstr=NULL, bool center=true) {
     char c;
     int8_t n = LCD_WIDTH;
     lcd.setCursor(0, row);
-    if (center) {
+    if (center && !valstr) {
       int8_t pad = (LCD_WIDTH - lcd_strlen_P(pstr)) / 2;
       while (--pad >= 0) { lcd.print(' '); n--; }
     }
@@ -836,7 +836,7 @@ static void lcd_implementation_status_screen() {
     while (n-- > 0) lcd.print(' ');
   }
 
-#endif // LCD_INFO_MENU
+#endif // LCD_INFO_MENU || FILAMENT_CHANGE_FEATURE
 
 static void lcd_implementation_drawmenu_generic(bool sel, uint8_t row, const char* pstr, char pre_char, char post_char) {
   char c;