diff --git a/core/nodeslicer/nodes/output.py b/core/nodeslicer/nodes/output.py
index e1e353f..c79f985 100644
--- a/core/nodeslicer/nodes/output.py
+++ b/core/nodeslicer/nodes/output.py
@@ -25,8 +25,7 @@ class SLICENODE_GcodeToFile(ExecSliceNode):
         super().draw_buttons(context, layout)
 
     def evaluate(self, operator=None):
-        from ....infra.networking.bgcode import convert_to_bgcode
-        from ....infra.networking.gcode_utils import get_gcode_name_from_metadata
+        from ....infra.networking.gcode_utils import get_gcode_name_from_metadata, prepare_gcode_file
         
         gcodes: list[str] = [gc for gc in self.resolve_multi_input('Gcode') if gc]
 
@@ -49,20 +48,14 @@ class SLICENODE_GcodeToFile(ExecSliceNode):
             name_part = basename.split('.')[0]
             os.makedirs(dirname, exist_ok=True)
 
-            # Detect binary trigger in gcode comments
-            is_binary = "; binary_gcode = 1" in gc
-
             try:
-                if is_binary:
-                    filepath = os.path.join(dirname, name_part + ".bgcode")
-                    content = convert_to_bgcode(gc, name_part, True)
-                    with open(filepath, "wb") as f:
-                        f.write(content)
+                file_bytes, filename = prepare_gcode_file(gc, name_part)
+                filepath = os.path.join(dirname, filename)
+                with open(filepath, "wb") as f:
+                    f.write(file_bytes)
+                if filename.endswith(".bgcode"):
                     if operator: operator.report({'INFO'}, f"Binary G-code generated at {filepath}")
                 else:
-                    filepath = os.path.join(dirname, name_part + ".gcode")
-                    with open(filepath, "w", encoding="utf-8", newline="\n") as f:
-                        f.write(gc)
                     if operator: operator.report({'INFO'}, f"G-code saved to {filepath}")
             except Exception as e:
                 if operator: operator.report({'ERROR'}, str(e))
@@ -149,14 +142,23 @@ class SLICENODE_StartPrint(ExecSliceNode):
             if operator: operator.report({'ERROR'}, f"Unsupported host type: {config.host_type}")
             return 'unsupported'
 
+        from ....infra.networking.gcode_utils import prepare_gcode_file
+
         # Write to temp file to send
-        with tempfile.NamedTemporaryFile(mode='w', suffix='.gcode', delete=False) as tf:
-            tf.write(gcode)
+        name_part = f"NodeSlicer_{config.label}".replace(" ", "_")
+        try:
+            file_bytes, filename = prepare_gcode_file(gcode, name_part)
+        except Exception as e:
+            if operator: operator.report({'ERROR'}, f"Failed to prepare G-code: {str(e)}")
+            return 'error'
+
+        suffix = Path(filename).suffix
+        with tempfile.NamedTemporaryFile(mode='wb', suffix=suffix, delete=False) as tf:
+            tf.write(file_bytes)
             temp_path = Path(tf.name)
 
         try:
-            print_name = f"NodeSlicer_{config.label}.gcode".replace(" ", "_")
-            backend.start_print(temp_path, print_name)
+            backend.start_print(temp_path, filename)
             if operator: operator.report({'INFO'}, f"Print started on {config.label}")
         except Exception as e:
             if operator: operator.report({'ERROR'}, f"Failed to start print: {str(e)}")
diff --git a/core/nodeslicer/nodes/system.py b/core/nodeslicer/nodes/system.py
index 95db19e..06ac285 100644
--- a/core/nodeslicer/nodes/system.py
+++ b/core/nodeslicer/nodes/system.py
@@ -72,6 +72,7 @@ class SLICENODE_PrinterList(ExecSliceNode):
             CrealityBackend,
             MoonrakerBackend
         )
+        from ....infra.networking.gcode_utils import prepare_gcode_file
         
         self._refresh()
 
@@ -124,13 +125,20 @@ class SLICENODE_PrinterList(ExecSliceNode):
                 continue
 
             # Write to temp file to send
-            with tempfile.NamedTemporaryFile(mode='w', suffix='.gcode', delete=False) as tf:
-                tf.write(gcode)
+            name_part = f"NodeSlicer_{sock.name}".replace(" ", "_")
+            try:
+                file_bytes, filename = prepare_gcode_file(gcode, name_part)
+            except Exception as e:
+                if operator: operator.report({'ERROR'}, f"Failed to prepare G-code for {sock.name}: {str(e)}")
+                continue
+
+            suffix = Path(filename).suffix
+            with tempfile.NamedTemporaryFile(mode='wb', suffix=suffix, delete=False) as tf:
+                tf.write(file_bytes)
                 temp_path = Path(tf.name)
 
             try:
-                print_name = f"NodeSlicer_{sock.name}.gcode".replace(" ", "_")
-                backend.start_print(temp_path, print_name)
+                backend.start_print(temp_path, filename)
                 if operator: operator.report({'INFO'}, f"Print started on {sock.name}")
                 any_printed = True
             except Exception as e:
diff --git a/infra/networking/gcode_utils.py b/infra/networking/gcode_utils.py
index 4d32205..e47bd97 100644
--- a/infra/networking/gcode_utils.py
+++ b/infra/networking/gcode_utils.py
@@ -57,3 +57,18 @@ def get_gcode_name_from_metadata(gcode: str, default: str = "output") -> str:
         except:
             pass
     return default
+
+
+def prepare_gcode_file(gcode: str, name_part: str) -> tuple[bytes, str]:
+    """
+    Checks if the G-code string contains instructions to generate binary BGcode.
+    Converts to binary if needed.
+    Returns a tuple of (file_bytes, filename_with_suffix).
+    """
+    is_binary = "; binary_gcode = 1" in gcode
+    if is_binary:
+        from .bgcode import convert_to_bgcode
+        bgcode_bytes = convert_to_bgcode(gcode, name_part, True)
+        return bgcode_bytes, f"{name_part}.bgcode"
+    else:
+        return gcode.encode("utf-8"), f"{name_part}.gcode"