diff --git a/models/box.py b/models/box.py
new file mode 100644
index 0000000..cbc51ae
--- /dev/null
+++ b/models/box.py
@@ -0,0 +1,23 @@
+"""
+Offene Box: 40 x 60 x 50 mm, Wand- und Bodenstärke 2 mm
+"""
+import cadquery as cq
+from cadquery import exporters
+from pathlib import Path
+
+OUTPUT = Path.home() / "3d-models"
+OUTPUT.mkdir(exist_ok=True)
+
+wall = 2
+
+result = (
+    cq.Workplane("XY")
+    .box(40, 60, 50)
+    .faces(">Z")
+    .shell(-wall)
+)
+
+out = OUTPUT / "box_40x60x50.stl"
+exporters.export(result, str(out))
+print(f"STL gespeichert: {out}")
+print(f"Größe: {out.stat().st_size // 1024} KB")