Adds Printer config option to force the use of set-and-wait gcode semantics (if supported by firmware).

Fixes #3268

lib/Slic3r/GUI/PresetEditor.pm

@@ -1217,6 +1217,7 @@ sub options {
         retract_length_toolchange retract_restart_extra_toolchange retract_lift_above retract_lift_below
         printer_settings_id
         printer_notes
+        use_set_and_wait_bed use_set_and_wait_extruder
     );
 }
 
@@ -1369,6 +1370,8 @@ sub build {
             $optgroup->append_single_option_line('pressure_advance');
             $optgroup->append_single_option_line('vibration_limit');
             $optgroup->append_single_option_line('z_steps_per_mm');
+            $optgroup->append_single_option_line('use_set_and_wait_extruder');
+            $optgroup->append_single_option_line('use_set_and_wait_bed');
         }
     }
     {

xs/src/libslic3r/GCodeWriter.cpp

@@ -107,7 +107,7 @@ GCodeWriter::postamble() const
 std::string
 GCodeWriter::set_temperature(unsigned int temperature, bool wait, int tool) const
 {
-    
+    wait = this->config.use_set_and_wait_extruder ? true : wait;
     std::string code, comment;
     if (wait && FLAVOR_IS_NOT(gcfTeacup) && FLAVOR_IS_NOT(gcfMakerWare) && FLAVOR_IS_NOT(gcfSailfish)) {
         code = "M109";
@@ -143,6 +143,7 @@ std::string
 GCodeWriter::set_bed_temperature(unsigned int temperature, bool wait) const
 {
     std::string code, comment;
+    wait = this->config.use_set_and_wait_bed ? true : wait;
     if (wait && FLAVOR_IS_NOT(gcfTeacup)) {
         if (FLAVOR_IS(gcfMakerWare) || FLAVOR_IS(gcfSailfish)) {
             code = "M109";

xs/src/libslic3r/PrintConfig.cpp

@@ -1631,6 +1631,19 @@ PrintConfigDef::PrintConfigDef()
     def->cli = "use-relative-e-distances!";
     def->default_value = new ConfigOptionBool(false);
 
+    def = this->add("use_set_and_wait_extruder", coBool);
+    def->label = "Use Set-and-Wait GCode (Extruder)";
+    def->tooltip = "If your firmware supports a set and wait gcode for temperature changes, use it for automatically inserted temperature gcode for all extruders. Does not affect custom gcode.";
+    def->cli = "use-set-and-wait-extruder!";
+    def->default_value = new ConfigOptionBool(false);
+
+    def = this->add("use_set_and_wait_bed", coBool);
+    def->label = "Use Set-and-Wait GCode (Bed)";
+    def->tooltip = "If your firmware supports a set and wait gcode for temperature changes, use it for automatically inserted temperature gcode for the heatbed. Does not affect custom gcode.";
+    def->cli = "use-set-and-wait-heatbed!";
+    def->default_value = new ConfigOptionBool(false);
+
+
     def = this->add("use_volumetric_e", coBool);
     def->label = "Use volumetric E";
     def->tooltip = "This experimental setting uses outputs the E values in cubic millimeters instead of linear millimeters. If your firmware doesn't already know filament diameter(s), you can put commands like 'M200 D[filament_diameter_0] T0' in your start G-code in order to turn volumetric mode on and use the filament diameter associated to the filament selected in Slic3r. This is only supported in recent Marlin.";

xs/src/libslic3r/PrintConfig.hpp

@@ -349,6 +349,8 @@ class GCodeConfig : public virtual StaticPrintConfig
     ConfigOptionBool                use_firmware_retraction;
     ConfigOptionBool                use_relative_e_distances;
     ConfigOptionBool                use_volumetric_e;
+    ConfigOptionBool                use_set_and_wait_extruder;
+    ConfigOptionBool                use_set_and_wait_bed;
     
     GCodeConfig(bool initialize = true) : StaticPrintConfig() {
         if (initialize)
@@ -390,6 +392,8 @@ class GCodeConfig : public virtual StaticPrintConfig
         OPT_PTR(use_firmware_retraction);
         OPT_PTR(use_relative_e_distances);
         OPT_PTR(use_volumetric_e);
+        OPT_PTR(use_set_and_wait_extruder);
+        OPT_PTR(use_set_and_wait_bed);
         
         return NULL;
     };