diff --git a/Zylinder.scad b/Zylinder.scad
new file mode 100644
index 0000000..8aab404
--- /dev/null
+++ b/Zylinder.scad
@@ -0,0 +1,6 @@
+$fn=100;
+difference() {
+    cylinder(h=70,r=10.25);
+    translate([0,0,-0.5])cylinder(h=10.7,r=8);
+    cylinder(h=71,r=4.25);
+}
diff --git a/Zylinder.stl b/Zylinder.stl
new file mode 100644
index 0000000..47902cb
Binary files /dev/null and b/Zylinder.stl differ