diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index c9a2ef2549..f6c11632aa 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -1898,36 +1898,42 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     if (!print.config().small_area_infill_flow_compensation_model.empty())
         m_small_area_infill_flow_compensator = make_unique<SmallAreaInfillFlowCompensator>(print.config());
     
-
-    file.write_format("; HEADER_BLOCK_START\n");
-    // Write information on the generator.
-    file.write_format("; generated by %s on %s\n", Slic3r::header_slic3r_generated().c_str(), Slic3r::Utils::local_timestamp().c_str());
-    if (is_bbl_printers)
-        file.write_format(";%s\n", GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Estimated_Printing_Time_Placeholder).c_str());
-    //BBS: total layer number
-    file.write_format(";%s\n", GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Total_Layer_Number_Placeholder).c_str());
-    m_enable_exclude_object = config().exclude_object;
-    //Orca: extra check for bbl printer
-    if (is_bbl_printers) {
-        if (print.calib_params().mode == CalibMode::Calib_None) { // Don't support skipping in cali mode
-            // list all label_object_id with sorted order here
-            m_enable_exclude_object = true;
-            m_label_objects_ids.clear();
-            m_label_objects_ids.reserve(print.num_object_instances());
-            for (const PrintObject *print_object : print.objects())
-                for (const PrintInstance &print_instance : print_object->instances())
-                    m_label_objects_ids.push_back(print_instance.model_instance->get_labeled_id());
-
-            std::sort(m_label_objects_ids.begin(), m_label_objects_ids.end());
-
-            std::string objects_id_list = "; model label id: ";
-            for (auto it = m_label_objects_ids.begin(); it != m_label_objects_ids.end(); it++)
-                objects_id_list += (std::to_string(*it) + (it != m_label_objects_ids.end() - 1 ? "," : "\n"));
-            file.writeln(objects_id_list);
-        } else {
-            m_enable_exclude_object = false;
-            m_label_objects_ids.clear();
-        }
+    // Orca: Don't output Header block if BTT thumbnail is identified in the list
+    // Get the thumbnails value as a string
+    std::string thumbnails_value = print.config().option<ConfigOptionString>("thumbnails")->value;
+    // search string for the BTT_TFT label
+    bool has_BTT_thumbnail = (thumbnails_value.find("BTT_TFT") != std::string::npos);
+    
+    if(!has_BTT_thumbnail){   
+        file.write_format("; HEADER_BLOCK_START\n");
+        // Write information on the generator.
+        file.write_format("; generated by %s on %s\n", Slic3r::header_slic3r_generated().c_str(), Slic3r::Utils::local_timestamp().c_str());
+        if (is_bbl_printers)
+            file.write_format(";%s\n", GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Estimated_Printing_Time_Placeholder).c_str());
+        //BBS: total layer number
+        file.write_format(";%s\n", GCodeProcessor::reserved_tag(GCodeProcessor::ETags::Total_Layer_Number_Placeholder).c_str());
+        m_enable_exclude_object = config().exclude_object;
+        //Orca: extra check for bbl printer
+        if (is_bbl_printers) {
+            if (print.calib_params().mode == CalibMode::Calib_None) { // Don't support skipping in cali mode
+                // list all label_object_id with sorted order here
+                m_enable_exclude_object = true;
+                m_label_objects_ids.clear();
+                m_label_objects_ids.reserve(print.num_object_instances());
+                for (const PrintObject *print_object : print.objects())
+                    for (const PrintInstance &print_instance : print_object->instances())
+                        m_label_objects_ids.push_back(print_instance.model_instance->get_labeled_id());
+  
+                std::sort(m_label_objects_ids.begin(), m_label_objects_ids.end());
+  
+                std::string objects_id_list = "; model label id: ";
+                for (auto it = m_label_objects_ids.begin(); it != m_label_objects_ids.end(); it++)
+                    objects_id_list += (std::to_string(*it) + (it != m_label_objects_ids.end() - 1 ? "," : "\n"));
+                file.writeln(objects_id_list);
+            } else {
+                m_enable_exclude_object = false;
+                m_label_objects_ids.clear();
+            }
     }
 
     {
@@ -1949,7 +1955,7 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     }
 
     file.write_format("; HEADER_BLOCK_END\n\n");
-
+    }
     
       // BBS: write global config at the beginning of gcode file because printer
       // need these config information