From 664a34f129836745ea046a81f97e3eafdb22d126 Mon Sep 17 00:00:00 2001
From: Noisyfox <timemanager.rick@gmail.com>
Date: Mon, 3 Nov 2025 23:43:23 +0800
Subject: [PATCH] Fix initial filament loading for non-bbl printers
 (SoftFever/OrcaSlicer#11218)

---
 src/libslic3r/GCode.cpp | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 300514a470..f4af9825ee 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -2874,16 +2874,18 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     m_writer.set_current_position_clear(false);
     m_start_gcode_filament = GCodeProcessor::get_gcode_last_filament(machine_start_gcode);
 
-    m_writer.init_extruder(initial_non_support_extruder_id);
-    // add the missing filament start gcode in machine start gcode
-    {
-        DynamicConfig config;
-        config.set_key_value("filament_extruder_id", new ConfigOptionInt((int)(initial_non_support_extruder_id)));
-        config.set_key_value("layer_num", new ConfigOptionInt(m_layer_index));
-        std::string filament_start_gcode = this->placeholder_parser_process("filament_start_gcode", print.config().filament_start_gcode.values.at(initial_non_support_extruder_id), initial_non_support_extruder_id,&config);
-        file.writeln(filament_start_gcode);
-        // mark the first filament used in print
-        file.write_format(";VT%d\n", initial_extruder_id);
+    if (is_bbl_printers) {
+        m_writer.init_extruder(initial_non_support_extruder_id);
+        // add the missing filament start gcode in machine start gcode
+        {
+            DynamicConfig config;
+            config.set_key_value("filament_extruder_id", new ConfigOptionInt((int)(initial_non_support_extruder_id)));
+            config.set_key_value("layer_num", new ConfigOptionInt(m_layer_index));
+            std::string filament_start_gcode = this->placeholder_parser_process("filament_start_gcode", print.config().filament_start_gcode.values.at(initial_non_support_extruder_id), initial_non_support_extruder_id,&config);
+            file.writeln(filament_start_gcode);
+            // mark the first filament used in print
+            file.write_format(";VT%d\n", initial_extruder_id);
+        }
     }
 
     //flush FanMover buffer to avoid modifying the start gcode if it's manual.