diff --git a/resources/extruders/mingda_base_extruder_1.def.json b/resources/extruders/mingda_base_extruder_1.def.json
deleted file mode 100644
index d6a49e62f1..0000000000
--- a/resources/extruders/mingda_base_extruder_1.def.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "version": 2,
-    "name": "Extruder 2",
-    "inherits": "fdmextruder",
-    "metadata":
-    {
-        "machine": "mingda_base",
-        "position": "1"
-    },
-    "overrides":
-    {
-        "extruder_nr":
-        {
-            "default_value": 1,
-            "maximum_value": "3"
-        },
-        "machine_nozzle_offset_x": { "default_value": 0.0 },
-        "machine_nozzle_offset_y": { "default_value": 0.0 },
-        "machine_nozzle_size": { "default_value": 0.5 },
-        "material_diameter": { "default_value": 1.75 }
-    }
-}
\ No newline at end of file