diff --git a/modelle/test-pyramid.stl b/modelle/test-pyramid.stl
new file mode 100644
index 0000000..00f5482
--- /dev/null
+++ b/modelle/test-pyramid.stl
@@ -0,0 +1,30 @@
+solid pyramid
+  facet normal 0 -1 0
+    outer loop
+      vertex 0 0 0
+      vertex 1 0 0
+      vertex 0.5 0 0.866
+    endloop
+  endfacet
+  facet normal 0.816 0.333 0.471
+    outer loop
+      vertex 1 0 0
+      vertex 0.5 1 0.433
+      vertex 0.5 0 0.866
+    endloop
+  endfacet
+  facet normal -0.816 0.333 0.471
+    outer loop
+      vertex 0 0 0
+      vertex 0.5 0 0.866
+      vertex 0.5 1 0.433
+    endloop
+  endfacet
+  facet normal 0 0.333 -0.943
+    outer loop
+      vertex 0 0 0
+      vertex 0.5 1 0.433
+      vertex 1 0 0
+    endloop
+  endfacet
+endsolid pyramid