diff --git a/blender/dump.py b/blender/dump.py
new file mode 100644
index 0000000..6a70a3b
--- /dev/null
+++ b/blender/dump.py
@@ -0,0 +1,83 @@
+import json
+
+import bmesh
+import bpy
+
+def main(context):
+    print(context.object.data)
+    print(type(context.object.data))
+    print(dir(context.object.data))
+
+    if context.object.mode == 'OBJECT':
+        bpy.ops.object.mode_set(mode='EDIT')
+
+    m = context.object.data
+    b = bmesh.from_edit_mesh(m)
+
+    print("info:")
+
+    data = {}
+    print("verts:")
+    for vert in b.verts:
+        print(" ", vert.index, ":", list(vert.co))
+    data['vertices'] = [list(vert.co) for vert in b.verts]
+
+    print("edges for vert:")
+    for vert in b.verts:
+        print("  ", vert.index, ":", [e.index for e in vert.link_edges])
+    print("faces for vert:")
+    for vert in b.verts:
+        print("  ", vert.index, ":", [e.index for e in vert.link_faces])
+
+    print("edges:")
+    edges = []
+    for edge in b.edges:
+        print(" ", edge.index, ":", [v.index for v in edge.verts])
+        edges.append([v.index for v in edge.verts])
+    data['edges'] = edges
+
+    print("faces for edge:")
+    for edge in b.edges:
+        print("  ", edge.index, ":", [f.index for f in edge.link_faces])
+
+
+    print("faces:")
+    faces = []
+    for face in b.faces:
+        print(" ", face.index, ":", [v.index for v in face.verts])
+        faces.append([v.index for v in face.verts])
+    data['faces'] = faces
+
+    print("edges for face:")
+    for face in b.faces:
+        print("  ", face.index, ":", [e.index for e in face.edges])
+
+
+    print(json.dumps(data))
+    bpy.ops.object.mode_set(mode='OBJECT')
+
+class DumpMesh(bpy.types.Operator):
+    '''dump mesh for surfaces'''
+    bl_idname = 'object.dump_mesh'
+    bl_label = 'Dump Mesh'
+
+    @classmethod
+    def poll(cls, context):
+        return context.active_object is not None
+
+    def execute(self, context):
+        main(context)
+        return {'FINISHED'}
+
+
+def register():
+    bpy.utils.register_class(DumpMesh)
+
+
+def unregister():
+    bpy.utils.unregister_class(DumpMesh)
+
+
+if __name__ == '__main__':
+    register()
+    bpy.ops.object.dump_mesh()
diff --git a/dump.py b/dump.py
deleted file mode 100644
index 6ef71d4..0000000
--- a/dump.py
+++ /dev/null
@@ -1,50 +0,0 @@
-import bpy
-import bmesh
-import json
-
-bpy.data.objects['Cube'].select = True
-bpy.ops.object.mode_set(mode='EDIT')
-
-m = bpy.data.meshes['Cube']
-b = bmesh.from_edit_mesh(m)
-
-print("info:")
-
-data = {}
-print("verts:")
-for vert in b.verts:
-    print(" ", vert.index, ":", list(vert.co))
-data['vertices'] = [list(vert.co) for vert in b.verts]
-
-print("edges for vert:")
-for vert in b.verts:
-    print("  ", vert.index, ":", [e.index for e in vert.link_edges])
-print("faces for vert:")
-for vert in b.verts:
-    print("  ", vert.index, ":", [e.index for e in vert.link_faces])
-
-print("edges:")
-edges = []
-for edge in b.edges:
-    print(" ", edge.index, ":", [v.index for v in edge.verts])
-    edges.append([v.index for v in edge.verts])
-data['edges'] = edges
-
-print("faces for edge:")
-for edge in b.edges:
-    print("  ", edge.index, ":", [f.index for f in edge.link_faces])
-
-
-print("faces:")
-faces = []
-for face in b.faces:
-    print(" ", face.index, ":", [v.index for v in face.verts])
-    faces.append([v.index for v in face.verts])
-data['faces'] = faces
-
-print("edges for face:")
-for face in b.faces:
-    print("  ", face.index, ":", [e.index for e in face.edges])
-
-
-print(json.dumps(data))