Introduce minimal chamber temperature field (gcode chamber_min_temperature (#14340)

Introduce minimal chamber temperature field (gcode chamber_min_temperature)

src/libslic3r/GCode.cpp

@@ -3034,6 +3034,7 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
         this->placeholder_parser().set("bed_temperature_initial_layer_vector", new ConfigOptionString());
         this->placeholder_parser().set("chamber_temperature", new ConfigOptionInts(m_config.chamber_temperature));
         this->placeholder_parser().set("overall_chamber_temperature", new ConfigOptionInt(max_chamber_temp));
+        this->placeholder_parser().set("chamber_minimal_temperature", new ConfigOptionInts(m_config.chamber_minimal_temperature));
         this->placeholder_parser().set("enable_high_low_temp_mix", new ConfigOptionBool(!print.need_check_multi_filaments_compatibility()));
         this->placeholder_parser().set("min_vitrification_temperature", new ConfigOptionInt(min_temperature_vitrification));
 

src/libslic3r/Preset.cpp

@@ -1339,7 +1339,7 @@ static std::vector<std::string> s_Preset_filament_options {/*"filament_colour",
     "filament_loading_speed", "filament_loading_speed_start",
     "filament_unloading_speed", "filament_unloading_speed_start", "filament_toolchange_delay", "filament_cooling_moves", "filament_stamping_loading_speed", "filament_stamping_distance",
     "filament_cooling_initial_speed", "filament_cooling_final_speed", "filament_ramming_parameters",
-    "filament_multitool_ramming", "filament_multitool_ramming_volume", "filament_multitool_ramming_flow", "activate_chamber_temp_control",
+    "filament_multitool_ramming", "filament_multitool_ramming_volume", "filament_multitool_ramming_flow", "activate_chamber_temp_control", "chamber_minimal_temperature",
     "filament_long_retractions_when_cut","filament_retraction_distances_when_cut", "idle_temperature",
     //BBS filament change length while the extruder color
     "filament_change_length","filament_flush_volumetric_speed","filament_flush_temp", "filament_cooling_before_tower",

src/libslic3r/Print.cpp

@@ -205,6 +205,7 @@ bool Print::invalidate_state_by_config_options(const ConfigOptionResolver & /* n
         "is_infill_first",
         // Orca
         "chamber_temperature",
+        "chamber_minimal_temperature",
         "thumbnails",
         "thumbnails_format",
         "seam_gap",

src/libslic3r/PrintConfig.cpp

@@ -6557,6 +6557,21 @@ void PrintConfigDef::init_fff_params()
     def->max = max_temp;
     def->set_default_value(new ConfigOptionInts{0});
 
+    def = this->add("chamber_minimal_temperature", coInts);
+    def->label = L("Minimal");
+    def->tooltip = L("This is the chamber temperature at which printing should start, while the chamber continues heating "
+                     "toward the \"Target\" chamber temperature. For example, set the Target to 60 and the Minimal to 50 to "
+                     "begin printing once the chamber reaches 50°C, without waiting for the full 60°C.\n\n"
+                     "It sets a G-code variable named chamber_minimal_temperature, which can be passed to your print start macro "
+                     "or a heat soak macro, like this: PRINT_START (other variables) CHAMBER_MIN_TEMP=[chamber_minimal_temperature].\n\n"
+                     "Unlike the \"Target\" chamber temperature, this option does not emit any M141/M191 commands; it only exposes "
+                     "the value to your custom G-code. It should not exceed the \"Target\" chamber temperature.");
+    def->sidetext = L(u8"\u2103" /* °C */);	// degrees Celsius, CIS languages need translation
+    def->full_label = L("Chamber minimal temperature");
+    def->min = 0;
+    def->max = max_temp;
+    def->set_default_value(new ConfigOptionInts{0});
+
     def = this->add("nozzle_temperature", coInts);
     def->label = L("Other layers");
     def->tooltip = L("Nozzle temperature after the first layer");
@@ -11202,6 +11217,7 @@ TemperaturesConfigDef::TemperaturesConfigDef()
     new_def("bed_temperature_initial_layer", coInts, "First layer bed temperature", "Vector of first layer bed temperatures for each extruder/filament. Provides the same value as first_layer_bed_temperature.")
     new_def("bed_temperature_initial_layer_single", coInt, "First layer bed temperature (initial extruder)", "First layer bed temperature for the initial extruder. Same as bed_temperature_initial_layer[initial_extruder]")
     new_def("chamber_temperature", coInts, "Chamber temperature", "Vector of chamber temperatures for each extruder/filament.")
+    new_def("chamber_minimal_temperature", coInts, "Chamber minimal temperature", "Vector of minimal chamber temperatures for each extruder/filament.")
     new_def("overall_chamber_temperature", coInt, "Overall chamber temperature", "Overall chamber temperature. This value is the maximum chamber temperature of any extruder/filament used.")
     new_def("first_layer_bed_temperature", coInts, "First layer bed temperature", "Vector of first layer bed temperatures for each extruder/filament. Provides the same value as bed_temperature_initial_layer.")
     new_def("first_layer_temperature", coInts, "First layer temperature", "Vector of first layer temperatures for each extruder/filament.")

src/libslic3r/PrintConfig.hpp

@@ -1647,7 +1647,8 @@ PRINT_CONFIG_CLASS_DERIVED_DEFINE(
 
     ((ConfigOptionBools,               activate_chamber_temp_control))
     ((ConfigOptionInts ,               chamber_temperature))
-    
+    ((ConfigOptionInts ,               chamber_minimal_temperature))
+
     // Orca: support adaptive bed mesh
     ((ConfigOptionFloat,               preferred_orientation))
     ((ConfigOptionPoint,               bed_mesh_min))