Added travel_speed_z. (supermerill/superslicer#1231)

resources/ui_layout/print.ui

@@ -240,7 +240,10 @@ group:label_width$8:sidetext_width$7:Speed for print moves
 	end_line
 	setting:label$Ironing post-process speed:label_width$30:width$4:ironing_speed
 group:Speed for non-print moves
-	setting:travel_speed
+	line:Travel speed
+		setting:label$xy:travel_speed
+		setting:label$z:travel_speed_z
+	end_line
 group:sidetext_width$7:Modifiers
 	line:First layer speed
 		setting:label_width$8:width$4:first_layer_speed

src/libslic3r/GCodeWriter.cpp

@@ -496,7 +496,9 @@ std::string GCodeWriter::_travel_to_z(double z, const std::string &comment)
         gcode << "G1 Z" << PRECISION(z, 6);
     else
         gcode << "G1 Z" << XYZF_NUM(z);
-    gcode <<   " F" << XYZF_NUM(this->config.travel_speed.value * 60.0);
+
+    const double speed = this->config.travel_speed_z.value == 0.0 ? this->config.travel_speed.value : this->config.travel_speed_z.value;
+    gcode <<   " F" << XYZF_NUM(speed * 60.0);
     COMMENT(comment);
     gcode << "\n";
     return gcode.str();

src/libslic3r/Preset.cpp

@@ -505,7 +505,7 @@ const std::vector<std::string>& Preset::print_options()
         "gap_fill_min_area",
         "gap_fill_overlap",
         "gap_fill_speed",
-        "travel_speed", "first_layer_speed", "perimeter_acceleration", "infill_acceleration",
+        "travel_speed", "travel_speed_z", "first_layer_speed", "perimeter_acceleration", "infill_acceleration",
         "bridge_acceleration", "first_layer_acceleration", "default_acceleration", 
         "duplicate_distance",
         "skirts", "skirt_distance", "skirt_height",

src/libslic3r/Print.cpp

@@ -173,6 +173,7 @@ bool Print::invalidate_state_by_config_options(const std::vector<t_config_option
         "top_fan_speed",
         "threads",
         "travel_speed",
+        "travel_speed_z",
         "use_firmware_retraction",
         "use_relative_e_distances",
         "use_volumetric_e",

src/libslic3r/PrintConfig.cpp

@@ -4059,6 +4059,18 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionFloat(130));
 
+    def = this->add("travel_speed_z", coFloat);
+    def->label = L("Z Travel");
+    def->full_label = L("Z travel speed");
+    def->category = OptionCategory::speed;
+    def->tooltip = L("Speed for movements along the Z axis.\nWhen set to zero, this value "
+                     "is ignored and regular travel speed is used instead.");
+    def->sidetext = L("mm/s");
+    def->aliases = { "travel_feed_rate_z" };
+    def->min = 0;
+    def->mode = comExpert;
+    def->set_default_value(new ConfigOptionFloat(0.));
+
     def = this->add("use_firmware_retraction", coBool);
     def->label = L("Use firmware retraction");
     def->category = OptionCategory::general;
@@ -5475,7 +5487,7 @@ void PrintConfigDef::to_prusa(t_config_option_key& opt_key, std::string& value,
 "top_infill_extrusion_spacing",
 "start_gcode_manual",
 "perimeter_round_corners",
-
+"travel_speed_z",
     };
     //looks if it's to be removed, or have to be transformed
     if (to_remove_keys.find(opt_key) != to_remove_keys.end()) {

src/libslic3r/PrintConfig.hpp

@@ -1106,6 +1106,7 @@ public:
     ConfigOptionStrings             tool_name;
     ConfigOptionString              toolchange_gcode;
     ConfigOptionFloat               travel_speed;
+    ConfigOptionFloat               travel_speed_z;
     ConfigOptionBool                use_firmware_retraction;
     ConfigOptionBool                use_relative_e_distances;
     ConfigOptionBool                use_volumetric_e;
@@ -1218,6 +1219,7 @@ protected:
         OPT_PTR(tool_name);
         OPT_PTR(toolchange_gcode);
         OPT_PTR(travel_speed);
+        OPT_PTR(travel_speed_z);
         OPT_PTR(use_firmware_retraction);
         OPT_PTR(use_relative_e_distances);
         OPT_PTR(use_volumetric_e);