diff --git a/.gitignore b/.gitignore
index 49813ed..8859f1a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .DS_Store
 *.pyc
 .vscode/
+*.blend1
diff --git a/mechanism/battery_box.blend b/mechanism/battery_box.blend
new file mode 100644
index 0000000..2c2a59d
Binary files /dev/null and b/mechanism/battery_box.blend differ
diff --git a/mechanism/body_bottom.blend b/mechanism/body_bottom.blend
index f02c735..a739e3d 100644
Binary files a/mechanism/body_bottom.blend and b/mechanism/body_bottom.blend differ
diff --git a/mechanism/body_top.blend b/mechanism/body_top.blend
index 7a46ebc..c222313 100644
Binary files a/mechanism/body_top.blend and b/mechanism/body_top.blend differ