ENH: add decel para

thanks SoftFever

Signed-off-by: qing.zhang <qing.zhang@bambulab.com>
Change-Id: I95a1240c8d6ce7365055e840e526f279a55939e4

src/libslic3r/GCodeWriter.cpp

@@ -175,6 +175,11 @@ std::string GCodeWriter::set_acceleration(unsigned int acceleration)
         // This is new MarlinFirmware with separated print/retraction/travel acceleration.
         // Use M204 P, we don't want to override travel acc by M204 S (which is deprecated anyway).
         gcode << "M204 P" << acceleration;
+    } else if (FLAVOR_IS(gcfKlipper) && this->config.accel_to_decel_enable) {
+        gcode << "SET_VELOCITY_LIMIT ACCEL_TO_DECEL=" << acceleration * this->config.accel_to_decel_factor / 100;
+        if (GCodeWriter::full_gcode_comment) gcode << " ; adjust ACCEL_TO_DECEL";
+        gcode << "\nM204 S" << acceleration;
+        // Set max accel to decel to half of acceleration
     } else {
         // M204: Set default acceleration
         gcode << "M204 S" << acceleration;

src/libslic3r/Preset.cpp

@@ -728,8 +728,10 @@ static std::vector<std::string> s_Preset_print_options {
 #endif /* HAS_PRESSURE_EQUALIZER */
     "inner_wall_speed", "outer_wall_speed", "sparse_infill_speed", "internal_solid_infill_speed",
     "top_surface_speed", "support_speed", "support_object_xy_distance", "support_interface_speed",
-    "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_loops", "skirt_distance", "skirt_height", "draft_shield",
+    "bridge_speed", "gap_infill_speed", "travel_speed", "travel_speed_z", "initial_layer_speed", "outer_wall_acceleration",
+    "initial_layer_acceleration", "top_surface_acceleration", "default_acceleration", 
+    "accel_to_decel_enable", "accel_to_decel_factor", "skirt_loops", "skirt_distance",
+    "skirt_height", "draft_shield",
     "brim_width", "brim_object_gap", "brim_type", "enable_support", "support_type", "support_threshold_angle", "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",

src/libslic3r/Print.cpp

@@ -107,6 +107,8 @@ bool Print::invalidate_state_by_config_options(const ConfigOptionResolver & /* n
         "initial_layer_acceleration",
         "outer_wall_acceleration",
         "top_surface_acceleration",
+        "accel_to_decel_enable",
+        "accel_to_decel_factor",
         // BBS
         "cool_plate_temp_initial_layer",
         "eng_plate_temp_initial_layer",

src/libslic3r/PrintConfig.cpp

@@ -1411,6 +1411,21 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionFloat(300));
 
+    def = this->add("accel_to_decel_enable", coBool);
+    def->label = L("Enable accel_to_decel");
+    def->tooltip = L("Klipper's max_accel_to_decel will be adjusted automatically");
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionBool(false));
+
+    def = this->add("accel_to_decel_factor", coPercent);
+    def->label = L("accel_to_decel");
+    def->tooltip = L("Klipper's max_accel_to_decel will be adjusted to this % of acceleration");
+    def->sidetext = L("%");
+    def->min = 1;
+    def->max = 100;
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionPercent(50));
+    
     def = this->add("default_jerk", coFloat);
     def->label = L("Default");
     def->tooltip = L("Default jerk");

src/libslic3r/PrintConfig.hpp

@@ -859,6 +859,8 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionEnum<NozzleType>,    nozzle_type))
     ((ConfigOptionInt,                 nozzle_hrc))
     ((ConfigOptionBool,                auxiliary_fan))
+    ((ConfigOptionBool,                accel_to_decel_enable))
+    ((ConfigOptionPercent,             accel_to_decel_factor))
 )
 
 // This object is mapped to Perl as Slic3r::Config::Print.