fix: The issue of contamination during tool change in parallel multi-tool machines.

resources/profiles/Snapmaker.json

@@ -1,6 +1,6 @@
 {
   "name": "Snapmaker",
-  "version": "02.02.00.04",
+  "version": "02.02.00.06",
   "force_update": "0",
   "description": "Snapmaker configurations",
   "machine_model_list": [

resources/profiles/Snapmaker/machine/fdm_a400.json

@@ -54,6 +54,6 @@
   ],
   "machine_start_gcode": "; Model: Snapmaker Artisan ({nozzle_diameter[0]}/{nozzle_diameter[1]})\n; Update: 20240922\n; Maintained by https://github.com/macdylan/3dp-configs\n; Printer : [printer_preset]\n; Profile : [print_preset]\n; Plate   : [plate_name]\n; --- initial_extruder: [initial_extruder]\n; --- has_wipe_tower: [has_wipe_tower]\n; --- total_toolchanges: [total_toolchanges]\n; --- T0: {is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - 1, 0))]}\n; --- T1: {is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - 0, 0))]}\n\nT[initial_extruder]\n\nM205 V[machine_max_jerk_x] ;Junction Deviation (mm)\n\nM140 S{first_layer_bed_temperature[initial_extruder]}\n\n; you can clean the nozzle\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))]}\n  M104 T{(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))} S165\n  {endif}\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))]}\n  M104 T{(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))} S165\n  {endif}\nM204 S100\nG28\nG0 Z266 F960.0\nG0 Y200.0 F6840.0\nG0 X200.0\n\n{if first_layer_print_min[0] >= 70 && first_layer_print_max[0] <= 330 && first_layer_print_min[1] >= 70 && first_layer_print_max[1] <= 330}\nM190 P0 R{first_layer_bed_temperature[initial_extruder]} ;only inner part of the bed\n{else}\nM190 R{first_layer_bed_temperature[initial_extruder]}\n{endif}\n\nG28\n{if 0==1} ; boundary check(for dual/quick swap kit), not recommanded if there are any clamps \n  G0 X0\n  G0 Z0.2 F960.0\n  G0 Y0 F6840.0\n  G0 X400\n  G0 Y400\n  G0 X0\n  G0 Y0\n{endif}\n\nM83\n{if 1==1 && max(hot_plate_temp_initial_layer[initial_extruder], hot_plate_temp[initial_extruder]) >= 90}\nG0 Z0.06\nG92 Z0 ;reset z\n{endif}\n\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))]}\n; preheat 0\nM104 T{(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))} S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))] + 15))}\n  {endif}\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))]}\n; preheat 1\nM104 T{(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))} S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))] + 15))}\n  {endif}\n\n  {if 1==1}\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))] and (initial_extruder % 2) != 0}\n; flush nozzle 0\nT{(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))}\nM104 S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))] + 15))}; common flush temp\nG0 Z1.6 F960.0\nG0 X{( 0 % 2 == 0 ? 185.0 : 215.0 )} F6840.0\nG0 Y0 F6840.0\n\nM109 S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))] + 15))} C2 W1\nG1 E20 F80.0\nG92 E0\n\nM106 S{min(255, (fan_max_speed[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))] + 10) * 2.55)}\n\nM104 S{nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))] + 5}\n\nG1 E12.0 F200\nG92 E0\nG1 E8.0 Z4.6 F200\nG92 E0\n\nG0 Z5.6 F200\nM107\n\nG0 X{( 0 % 2 == 0 ? 140.0 : 260.0 )} F6840.0\nG0 Z0.3 F960.0\nM109 S{nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))]} C3 W1\nG1 E3 F200\nG92 E0\nG1 X{( 0 % 2 == 0 ? 0 : 400 )} E8.73079 F6840.0\nG92 E0\n\nG1 E-{retract_length_toolchange[0]} F200\nG92 E0\nG0 Y20 F6840.0\n\nM104 S{temperature_vitrification[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))]}\n  {endif}\n\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))] and (initial_extruder % 2) != 1}\n; flush nozzle 1\nT{(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))}\nM104 S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))] + 15))}; common flush temp\nG0 Z1.6 F960.0\nG0 X{( 1 % 2 == 0 ? 185.0 : 215.0 )} F6840.0\nG0 Y0 F6840.0\n\nM109 S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))] + 15))} C2 W1\nG1 E20 F80.0\nG92 E0\n\nM106 S{min(255, (fan_max_speed[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))] + 10) * 2.55)}\n\nM104 S{nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))] + 5}\n\nG1 E12.0 F200\nG92 E0\nG1 E8.0 Z4.6 F200\nG92 E0\n\nG0 Z5.6 F200\nM107\n\nG0 X{( 1 % 2 == 0 ? 140.0 : 260.0 )} F6840.0\nG0 Z0.3 F960.0\nM109 S{nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))]} C3 W1\nG1 E3 F200\nG92 E0\nG1 X{( 1 % 2 == 0 ? 0 : 400 )} E8.73079 F6840.0\nG92 E0\n\nG1 E-{retract_length_toolchange[1]} F200\nG92 E0\nG0 Y20 F6840.0\n\nM104 S{temperature_vitrification[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))]}\n  {endif}\n\n  {endif}\n; flush initial nozzle\nT[initial_extruder]\nM104 S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + initial_extruder, 63) : max(initial_extruder - (1-initial_extruder), 0))] + 15))}; common flush temp\nG0 Z1.6 F960.0\nG0 X{( initial_extruder % 2 == 0 ? 185.0 : 215.0 )} F6840.0\nG0 Y0 F6840.0\n\nM109 S{max(250, min(290, nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + initial_extruder, 63) : max(initial_extruder - (1-initial_extruder), 0))] + 15))} C2 W1\nG1 E20 F80.0\nG92 E0\n\nM106 S{min(255, (fan_max_speed[(initial_extruder % 2 == 0 ? min(initial_extruder + initial_extruder, 63) : max(initial_extruder - (1-initial_extruder), 0))] + 10) * 2.55)}\n\nM104 S{nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + initial_extruder, 63) : max(initial_extruder - (1-initial_extruder), 0))] + 5}\n\nG1 E12.0 F200\nG92 E0\nG1 E8.0 Z4.6 F200\nG92 E0\n\nG0 Z5.6 F200\nM107\n\nG0 X{( initial_extruder % 2 == 0 ? 140.0 : 260.0 )} F6840.0\nG0 Z0.3 F960.0\nM109 S{nozzle_temperature_initial_layer[(initial_extruder % 2 == 0 ? min(initial_extruder + initial_extruder, 63) : max(initial_extruder - (1-initial_extruder), 0))]} C3 W1\nG1 E3 F200\nG92 E0\nG1 X{( initial_extruder % 2 == 0 ? 0 : 400 )} E8.73079 F6840.0\nG92 E0\n\nG1 E-{retraction_length[initial_extruder]} F200\nG92 E0\nG0 Y20 F6840.0\n\n; ready [plate_name]",
   "machine_end_gcode": "G92 E0\n\nG0 Z{max_layer_z + 2.0} F600\n; retract the filament to make it easier to replace\nG0 E-10 F200\nG28\n\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))]}\nM104 T{(initial_extruder % 2 == 0 ? min(initial_extruder + 0, 63) : max(initial_extruder - (1-0), 0))} S0\n  {endif}\n{if is_extruder_used[(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))]}\nM104 T{(initial_extruder % 2 == 0 ? min(initial_extruder + 1, 63) : max(initial_extruder - (1-1), 0))} S0\n  {endif}\nM140 S0\nM107\nM220 S100\nM84\n\n;\n; DON'T REMOVE these lines if you're using the smfix (https://github.com/macdylan/SMFix)\n; min_x = [first_layer_print_min_0]\n; min_y = [first_layer_print_min_1]\n; max_x = [first_layer_print_max_0]\n; max_y = [first_layer_print_max_1]\n; max_z = [max_layer_z]\n; total_layer_number = [layer_num]\n;",
-  "change_filament_gcode": ";***** Update: 20240823\n{if current_extruder != next_extruder}\n; Change T[current_extruder] -> T[next_extruder] (layer [layer_num]\n; layer\nT{next_extruder}\n\n{if layer_num == 1 &&\n ((filament_type[current_extruder] == \"PLA\" || filament_type[current_extruder] == \"TPU\")\n  || (filament_type[next_extruder] == \"PLA\" || filament_type[next_extruder] == \"TPU\"))\n}\n  ; set bed temp: {filament_type[current_extruder]}({bed_temperature[current_extruder]}) -> {filament_type[next_extruder]}({bed_temperature[next_extruder]})\n  M140 S{min(bed_temperature[current_extruder], bed_temperature[next_extruder])}\n{endif}\n\nM109 T[next_extruder] S{if layer_num < 1}[nozzle_temperature_initial_layer]{else}[nozzle_temperature]{endif} C3 W1 ;wait T[next_extruder]\n{if layer_num == 1}\n  G1 E{retraction_length[next_extruder]} F200;deretract\n{endif}\n\n{if layer_z > first_layer_height && layer_num >= close_fan_the_first_x_layers[next_extruder]}\n;  M106 P[next_extruder] S{fan_min_speed[next_extruder] * 255.0 / 100.0} ;restore fan speed for T[next_extruder]\n{endif}\n; End Toolchange\n{endif}",
+  "change_filament_gcode": ";***** Update: 20230923\n{if current_extruder != next_extruder}\n; {if (next_wipe_x > 0) || (next_wipe_y > 0)}\n; use wipeTower\n; move to wipeTower before changing tool\nG0 X[next_wipe_x] Y[next_wipe_y]\n{endif}\n Change T[current_extruder] -> T[next_extruder] (layer [layer_num]\n; layer\nT{next_extruder}\n\nM107 P[current_extruder] ;fan off T[current_extruder]\n\n{if layer_num == 1 &&\n ((filament_type[current_extruder] == \"PLA\" || filament_type[current_extruder] == \"TPU\")\n  || (filament_type[next_extruder] == \"PLA\" || filament_type[next_extruder] == \"TPU\"))\n}\n  ; set bed temp: {filament_type[current_extruder]}({bed_temperature[current_extruder]}) -> {filament_type[next_extruder]}({bed_temperature[next_extruder]})\n  M140 S{min(bed_temperature[current_extruder], bed_temperature[next_extruder])}\n{endif}\n\nM109 T[next_extruder] S{if layer_num < 1}[nozzle_temperature_initial_layer]{else}[nozzle_temperature]{endif} C3 W1 ;wait T[next_extruder]\n{if layer_num == 1}\n  G1 E{retraction_length[next_extruder]} F200;deretract\n{endif}\n\n{if layer_z > first_layer_height && layer_num >= close_fan_the_first_x_layers[next_extruder]}\n;  M106 P[next_extruder] S{fan_min_speed[next_extruder] * 255.0 / 100.0} ;restore fan speed for T[next_extruder]\n{endif}\n; End Toolchange\n{endif}",
   "before_layer_change_gcode": "; layer_num: [layer_num]\nG92 E0"
 }

src/libslic3r/GCode.cpp

@@ -723,6 +723,11 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
         float wipe_tower_rotation = tcr.priming ? 0.f : alpha;
         Vec2f plate_origin_2d(m_plate_origin(0), m_plate_origin(1));
 
+        // Record the position that is about to wipe.
+        auto transformed_pos   = Eigen::Rotation2Df(wipe_tower_rotation) * tcr.start_pos + wipe_tower_offset;
+        gcodegen.m_next_wipe_x = transformed_pos(0);
+        gcodegen.m_next_wipe_y = transformed_pos(1);
+
 
         std::string tcr_rotated_gcode = post_process_wipe_tower_moves(tcr, wipe_tower_offset, wipe_tower_rotation);
 
@@ -6387,7 +6392,8 @@ std::string GCode::set_extruder(unsigned int extruder_id, double print_z, bool b
     dyn_config.set_key_value("travel_point_3_y", new ConfigOptionFloat(float(travel_point_3.y())));
 
     dyn_config.set_key_value("flush_length", new ConfigOptionFloat(wipe_length));
-
+    dyn_config.set_key_value("next_wipe_x", new ConfigOptionFloat(m_next_wipe_x));
+    dyn_config.set_key_value("next_wipe_y", new ConfigOptionFloat(m_next_wipe_y));
     int flush_count = std::min(g_max_flush_count, (int)std::round(wipe_volume / g_purge_volume_one_time));
     float flush_unit = wipe_length / flush_count;
     int flush_idx = 0;

src/libslic3r/GCode.hpp

@@ -541,6 +541,8 @@ class GCode {
     float                               m_last_layer_z{ 0.0f };
     float                               m_max_layer_z{ 0.0f };
     float                               m_last_width{ 0.0f };
+    float                               m_next_wipe_x {0.0f};
+    float                               m_next_wipe_y {0.0f};
 #if ENABLE_GCODE_VIEWER_DATA_CHECKING
     double                              m_last_mm3_per_mm;
 #endif // ENABLE_GCODE_VIEWER_DATA_CHECKING

src/libslic3r/PrintConfig.cpp

@@ -7723,7 +7723,7 @@ static std::map<t_custom_gcode_key, t_config_option_keys> s_CustomGcodeSpecificP
                                "new_retract_length_toolchange", "old_filament_e_feedrate", "old_filament_temp", "old_retract_length",
                                "old_retract_length_toolchange", "relative_e_axis", "second_flush_volume", "toolchange_count", "toolchange_z",
                                "travel_point_1_x", "travel_point_1_y", "travel_point_2_x", "travel_point_2_y", "travel_point_3_x",
-                               "travel_point_3_y", "x_after_toolchange", "y_after_toolchange", "z_after_toolchange"}},
+                               "travel_point_3_y", "x_after_toolchange", "y_after_toolchange", "z_after_toolchange", "next_wipe_x", "next_wipe_y"}},
     {"change_extrusion_role_gcode", {"layer_num", "layer_z", "extrusion_role", "last_extrusion_role"}},
     {"printing_by_object_gcode",    {}},
     {"machine_pause_gcode",         {}},
@@ -7788,7 +7788,8 @@ CustomGcodeSpecificConfigDef::CustomGcodeSpecificConfigDef()
     new_def("flush_length_2", coFloat, "Flush Length 2", "The second flush length");
     new_def("flush_length_3", coFloat, "Flush Length 3", "The third flush length");
     new_def("flush_length_4", coFloat, "Flush Length 4", "The fourth flush length");
-
+    new_def("next_wipe_x", coFloat, "Next Wipe X", "For Snapmaker Artision, next x after toolchange");
+    new_def("next_wipe_y", coFloat, "Next Wipe Y", "For Snapmaker Artision, next y after toolchange");
 // change_extrusion_role_gcode
     std::string extrusion_role_types = "Possible Values:\n[\"Perimeter\", \"ExternalPerimeter\", "
                                                      "\"OverhangPerimeter\", \"InternalInfill\", \"SolidInfill\", \"TopSolidInfill\", \"BottomSurface\", \"BridgeInfill\", \"GapFill\", \"Ironing\", "