Feature: Ability to set flow ratio for brims (#11876)

Fixes #11853

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

src/libslic3r/GCode.cpp

@@ -6285,6 +6285,8 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
         _mm3_per_mm *= m_config.bottom_solid_infill_flow_ratio;
     } else if (path.role() == erInternalBridgeInfill) {
         _mm3_per_mm *= m_config.internal_bridge_flow;
+    } else if (path.role() == erBrim) {
+        _mm3_per_mm *= m_config.brim_flow_ratio;
     } else if (sloped) {
         _mm3_per_mm *= m_config.scarf_joint_flow_ratio;
     }

src/libslic3r/Preset.cpp

@@ -904,7 +904,7 @@ static std::vector<std::string> s_Preset_print_options {
     "top_surface_speed", "support_speed", "support_object_xy_distance", "support_object_first_layer_gap", "support_interface_speed",
     "bridge_speed", "internal_bridge_speed", "gap_infill_speed", "travel_speed", "travel_speed_z", "initial_layer_speed",
     "outer_wall_acceleration", "initial_layer_acceleration", "top_surface_acceleration", "default_acceleration", "skirt_type", "skirt_loops", "skirt_speed","min_skirt_length", "skirt_distance", "skirt_start_angle", "skirt_height","single_loop_draft_shield", "draft_shield",
-    "brim_width", "brim_object_gap", "brim_use_efc_outline", "combine_brims", "brim_type", "brim_ears_max_angle", "brim_ears_detection_length", "enable_support", "support_type", "support_threshold_angle", "support_threshold_overlap","enforce_support_layers",
+    "brim_width", "brim_object_gap", "brim_flow_ratio", "brim_use_efc_outline", "combine_brims", "brim_type", "brim_ears_max_angle", "brim_ears_detection_length", "enable_support", "support_type", "support_threshold_angle", "support_threshold_overlap","enforce_support_layers",
     "raft_layers", "raft_first_layer_density", "raft_first_layer_expansion", "raft_contact_distance", "raft_expansion",
     "support_base_pattern", "support_base_pattern_spacing", "support_expansion", "support_style",
     // BBS

src/libslic3r/PrintConfig.cpp

@@ -1583,6 +1583,17 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionFloat(0.));
 
+    def = this->add("brim_flow_ratio", coFloat);
+    def->label = L("Brim flow ratio");
+    def->category = L("Support");
+    def->tooltip = L("This factor affects the amount of material for brims.\n\n"
+                     "The actual brim flow used is calculated by multiplying this value by the filament flow ratio, and if set, the object's flow ratio.\n\n"
+                     "Note: The resulting value will not be affected by the first-layer flow ratio.");
+    def->min = 0;
+    def->max = 2;
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionFloat(1));
+
     def = this->add("brim_use_efc_outline", coBool);
     def->label = L("Brim follows compensated outline");
     def->category = L("Support");

src/libslic3r/PrintConfig.hpp

@@ -888,6 +888,7 @@ PRINT_CONFIG_CLASS_DEFINE(
     PrintObjectConfig,
 
     ((ConfigOptionFloat,               brim_object_gap))
+    ((ConfigOptionFloat,               brim_flow_ratio))
     ((ConfigOptionBool,                brim_use_efc_outline))
     ((ConfigOptionEnum<BrimType>,      brim_type))
     ((ConfigOptionFloat,               brim_width))

src/libslic3r/PrintObject.cpp

@@ -1300,7 +1300,6 @@ bool PrintObject::invalidate_state_by_config_options(
             || opt_key == "scarf_angle_threshold"
             || opt_key == "scarf_overhang_threshold"
             || opt_key == "scarf_joint_speed"
-            || opt_key == "scarf_joint_flow_ratio"
             || opt_key == "seam_slope_start_height"
             || opt_key == "seam_slope_entire_loop"
             || opt_key == "seam_slope_min_length"
@@ -1324,7 +1323,24 @@ bool PrintObject::invalidate_state_by_config_options(
             || opt_key == "bed_mesh_min"
             || opt_key == "bed_mesh_max"
             || opt_key == "adaptive_bed_mesh_margin"
-            || opt_key == "bed_mesh_probe_distance") {
+            || opt_key == "bed_mesh_probe_distance"
+            || opt_key == "print_flow_ratio"
+            || opt_key == "first_layer_flow_ratio"
+            || opt_key == "top_solid_infill_flow_ratio"
+            || opt_key == "bottom_solid_infill_flow_ratio"
+            || opt_key == "outer_wall_flow_ratio"
+            || opt_key == "inner_wall_flow_ratio"
+            || opt_key == "overhang_flow_ratio"
+            || opt_key == "sparse_infill_flow_ratio"
+            || opt_key == "internal_solid_infill_flow_ratio"
+            || opt_key == "gap_fill_flow_ratio"
+            || opt_key == "support_flow_ratio"
+            || opt_key == "support_interface_flow_ratio"
+            || opt_key == "brim_flow_ratio"
+            || opt_key == "filament_flow_ratio"
+            || opt_key == "scarf_joint_flow_ratio"
+            || opt_key == "spiral_starting_flow_ratio"
+            || opt_key == "spiral_finishing_flow_ratio") {
             invalidated |= m_print->invalidate_step(psGCodeExport);
         } else if (
                opt_key == "flush_into_infill"

src/slic3r/GUI/ConfigManipulation.cpp

@@ -707,6 +707,7 @@ void ConfigManipulation::toggle_print_fff_options(DynamicPrintConfig *config, co
     bool have_brim_width = (config->opt_enum<BrimType>("brim_type") != btNoBrim) && config->opt_enum<BrimType>("brim_type") != btAutoBrim &&
                            config->opt_enum<BrimType>("brim_type") != btPainted;
     toggle_field("brim_width", have_brim_width);
+    toggle_field("brim_flow_ratio", have_brim);
     // wall_filament uses the same logic as in Print::extruders()
     toggle_field("wall_filament", have_perimeters || have_brim);
 

src/slic3r/GUI/GUI_Factories.cpp

@@ -85,16 +85,15 @@ std::map<std::string, std::vector<SimpleSettingData>>  SettingsFactory::OBJECT_C
                     {"xy_hole_compensation", "",5}, {"xy_contour_compensation", "",6}, {"elefant_foot_compensation", "",7},
                     {"make_overhang_printable_angle","", 8},{"make_overhang_printable_hole_size","",9}, {"wall_sequence","",10},
                     {"precise_z_height", "",10}
-
                     }},
-    { L("Support"), {{"brim_type", "",1},{"brim_width", "",2},{"brim_object_gap", "",3},{"brim_use_efc_outline", "",4},
+    { L("Support"), {{"brim_type", "",1},{"brim_width", "",2},{"brim_object_gap", "",3},{"brim_flow_ratio", "",4},{"brim_use_efc_outline", "",5},
-                    {"enable_support", "",5},{"support_type", "",6},{"support_threshold_angle", "",7}, {"support_threshold_overlap", "",8}, {"support_on_build_plate_only", "",9},
+                    {"enable_support", "",6},{"support_type", "",7},{"support_threshold_angle", "",8}, {"support_threshold_overlap", "",9}, {"support_on_build_plate_only", "",10},
-                    {"support_filament", "",10},{"support_interface_filament", "",11},{"support_expansion", "",12},{"support_style", "",13},
+                    {"support_filament", "",11},{"support_interface_filament", "",12},{"support_expansion", "",13},{"support_style", "",14},
-                    {"tree_support_brim_width", "",14}, {"tree_support_branch_angle", "",15},{"tree_support_branch_angle_organic","",16}, {"tree_support_wall_count", "",17},{"tree_support_branch_diameter_angle", "",18},//tree support
+                    {"tree_support_brim_width", "",15}, {"tree_support_branch_angle", "",16},{"tree_support_branch_angle_organic","",17}, {"tree_support_wall_count", "",18},{"tree_support_branch_diameter_angle", "",19},//tree support
-                    {"support_bottom_z_distance", "",19},{"support_top_z_distance", "",20},{"support_base_pattern", "",21},{"support_base_pattern_spacing", "",22},
+                    {"support_bottom_z_distance", "",20},{"support_top_z_distance", "",21},{"support_base_pattern", "",22},{"support_base_pattern_spacing", "",23},
-                    {"support_interface_top_layers", "",23},{"support_interface_bottom_layers", "",24},{"support_interface_spacing", "",25},{"support_bottom_interface_spacing", "",26},
+                    {"support_interface_top_layers", "",24},{"support_interface_bottom_layers", "",25},{"support_interface_spacing", "",26},{"support_bottom_interface_spacing", "",27},
-                    {"support_object_xy_distance", "",27}, {"bridge_no_support", "",28},{"max_bridge_length", "",29},{"support_critical_regions_only", "",30},{"support_remove_small_overhang","",31},
+                    {"support_object_xy_distance", "",28}, {"bridge_no_support", "",29},{"max_bridge_length", "",30},{"support_critical_regions_only", "",31},{"support_remove_small_overhang","",32},
-                    {"support_object_first_layer_gap","",32}
+                    {"support_object_first_layer_gap","",33}
                     }},
     { L("Speed"), {{"support_speed", "",12}, {"support_interface_speed", "",13}
                   }}

src/slic3r/GUI/Plater.cpp

@@ -4879,13 +4879,13 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
         "extruder_clearance_radius",
         "extruder_clearance_height_to_lid", "extruder_clearance_height_to_rod",
 		"nozzle_height", "skirt_type", "skirt_loops", "skirt_speed","min_skirt_length", "skirt_distance", "skirt_start_angle",
-        "brim_width", "brim_object_gap", "brim_use_efc_outline", "combine_brims", "brim_type", "nozzle_diameter", "single_extruder_multi_material", "preferred_orientation",
+        "brim_width", "brim_object_gap", "brim_flow_ratio", "brim_use_efc_outline", "combine_brims", "brim_type", "nozzle_diameter", "single_extruder_multi_material", "preferred_orientation",
         "enable_prime_tower", "wipe_tower_x", "wipe_tower_y", "prime_tower_width", "prime_tower_brim_width", "prime_tower_skip_points", "prime_tower_enable_framework",
         "prime_tower_infill_gap", "prime_volume",
         "extruder_colour", "filament_colour", "filament_type", "material_colour", "printable_height", "extruder_printable_height", "printer_model", "printer_technology",
         // These values are necessary to construct SlicingParameters by the Canvas3D variable layer height editor.
         "layer_height", "initial_layer_print_height", "min_layer_height", "max_layer_height",
-        "brim_width", "wall_loops", "wall_filament", "sparse_infill_density", "sparse_infill_filament", "top_shell_layers",
+        "wall_loops", "wall_filament", "sparse_infill_density", "sparse_infill_filament", "top_shell_layers",
         "enable_support", "support_filament", "support_interface_filament",
         "support_top_z_distance", "support_bottom_z_distance", "raft_layers",
         "wipe_tower_rotation_angle", "wipe_tower_cone_angle", "wipe_tower_extra_spacing", "wipe_tower_extra_flow", "wipe_tower_max_purge_speed",

src/slic3r/GUI/Tab.cpp

@@ -2659,6 +2659,7 @@ void TabPrint::build()
         optgroup->append_single_option_line("brim_type", "others_settings_brim#type");
         optgroup->append_single_option_line("brim_width", "others_settings_brim#width");
         optgroup->append_single_option_line("brim_object_gap", "others_settings_brim#brim-object-gap");
+        optgroup->append_single_option_line("brim_flow_ratio", "others_settings_brim#brim-flow-ratio");
         optgroup->append_single_option_line("brim_use_efc_outline", "others_settings_brim#brim-use-efc-outline");
         optgroup->append_single_option_line("combine_brims", "others_settings_brim#combine-brims");
         optgroup->append_single_option_line("brim_ears_max_angle", "others_settings_brim#ear-max-angle");