diff --git a/hardware/ht-dn50_stopfen.scad b/hardware/ht-dn50_stopfen.scad
new file mode 100644
index 0000000..a877828
--- /dev/null
+++ b/hardware/ht-dn50_stopfen.scad
@@ -0,0 +1,22 @@
+
+
+union() {
+	difference() {
+		cylinder(h=30, r=25, $fn=300);
+		translate([0, 0, -5])
+            cylinder(h=40, r=23, $fn=300);
+	}
+    difference() {
+        union() {
+            translate([0, 0, 30])
+                cylinder(h=3, r=30, $fn=300);
+            color("green")
+                translate([-22, -12, 31])
+                    cube([44, 24, 5]);
+        }
+        color("red")
+            translate([-20, -10, 25])
+                cube([40, 20, 15]);
+    }
+}
+