diff --git a/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs b/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs
index a0748ee..7d1ff28 100644
--- a/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs
+++ b/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs
@@ -13,7 +13,10 @@ namespace OSCADSharp.ConsoleTests
     {
         static void Main(string[] args)
         {
-            var obj = new Cube(5, 10, 20).Mirror(0, 0, 1);
+            var obj = new Cube(5, 10, 20).Mirror(0, 0, 1).Mirror(0, 1, 0)
+                .Rotate(15, -45, 120).Translate(-20, 10, 15).Rotate(90, 15, 25)
+                .Translate(-10, -20, -20).Rotate(-90, -90, -45);
+            obj = obj.Minkowski(new Cube(1, 1, 5));
 
             var pos = obj.Position();
             var cyl1 = new Cylinder(1, 100, true).Translate(pos);
diff --git a/OSCADSharp/OSCADSharp.UnitTests/DifferenceTests.cs b/OSCADSharp/OSCADSharp.UnitTests/DifferenceTests.cs
new file mode 100644
index 0000000..16b5c31
--- /dev/null
+++ b/OSCADSharp/OSCADSharp.UnitTests/DifferenceTests.cs
@@ -0,0 +1,19 @@
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using OSCADSharp.Solids;
+
+namespace OSCADSharp.UnitTests
+{
+    [TestClass]
+    public class DifferenceTests
+    {
+        [TestMethod]
+        [ExpectedException(typeof(NotSupportedException))]
+        public void Difference_PositionThrowsNotSupportedException()
+        {
+            var diff = new Sphere().Difference(new Cube());
+
+            var pos = diff.Position();
+        }
+    }
+}
diff --git a/OSCADSharp/OSCADSharp.UnitTests/IntersectionTests.cs b/OSCADSharp/OSCADSharp.UnitTests/IntersectionTests.cs
new file mode 100644
index 0000000..fadd682
--- /dev/null
+++ b/OSCADSharp/OSCADSharp.UnitTests/IntersectionTests.cs
@@ -0,0 +1,19 @@
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using OSCADSharp.Solids;
+
+namespace OSCADSharp.UnitTests
+{
+    [TestClass]
+    public class IntersectionTests
+    {
+        [TestMethod]
+        [ExpectedException(typeof(NotSupportedException))]
+        public void Intersection_PositionThrowsNotSupportedException()
+        {
+            var obj = new Sphere().Intersection(new Text3D("Sup"));
+
+            var pos = obj.Position();
+        }
+    }
+}
diff --git a/OSCADSharp/OSCADSharp.UnitTests/MinkowskiTests.cs b/OSCADSharp/OSCADSharp.UnitTests/MinkowskiTests.cs
new file mode 100644
index 0000000..abbc9c7
--- /dev/null
+++ b/OSCADSharp/OSCADSharp.UnitTests/MinkowskiTests.cs
@@ -0,0 +1,19 @@
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using OSCADSharp.Solids;
+
+namespace OSCADSharp.UnitTests
+{
+    [TestClass]
+    public class MinkowskiTests
+    {
+        [TestMethod]
+        [ExpectedException(typeof(NotSupportedException))]
+        public void Minkowski_PositionThrowsNotSupportedException()
+        {
+            var obj = new Cylinder().Intersection(new Sphere()).Translate(0, 5, 5);
+
+            var pos = obj.Position();
+        }
+    }
+}
diff --git a/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj b/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj
index b2e1d2e..f66616f 100644
--- a/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj
+++ b/OSCADSharp/OSCADSharp.UnitTests/OSCADSharp.UnitTests.csproj
@@ -62,6 +62,9 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Text3DTests.cs" />
     <Compile Include="UnionTests.cs" />
+    <Compile Include="DifferenceTests.cs" />
+    <Compile Include="IntersectionTests.cs" />
+    <Compile Include="MinkowskiTests.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OSCADSharp\OSCADSharp.csproj">
diff --git a/OSCADSharp/OSCADSharp/Booleans/Difference.cs b/OSCADSharp/OSCADSharp/Booleans/Difference.cs
index 3877265..bd66924 100644
--- a/OSCADSharp/OSCADSharp/Booleans/Difference.cs
+++ b/OSCADSharp/OSCADSharp/Booleans/Difference.cs
@@ -18,6 +18,11 @@ namespace OSCADSharp.Booleans
         /// <param name="children"></param>
         public Difference(IEnumerable<OSCADObject> children) : base("difference()", children)
         {
-        }        
+        }
+
+        public override Vector3 Position()
+        {
+            throw new NotSupportedException("Position is not supported on Differenced objects.");
+        }
     }
 }
diff --git a/OSCADSharp/OSCADSharp/Booleans/Intersection.cs b/OSCADSharp/OSCADSharp/Booleans/Intersection.cs
index a67f010..f5c0f72 100644
--- a/OSCADSharp/OSCADSharp/Booleans/Intersection.cs
+++ b/OSCADSharp/OSCADSharp/Booleans/Intersection.cs
@@ -19,5 +19,10 @@ namespace OSCADSharp.Booleans
         public Intersection(IEnumerable<OSCADObject> children) : base("intersection()", children)
         {
         }
+
+        public override Vector3 Position()
+        {
+            throw new NotSupportedException("Position is not supported on Intersected objects.");
+        }
     }
 }
diff --git a/OSCADSharp/OSCADSharp/Transforms/MinkowskiedObject.cs b/OSCADSharp/OSCADSharp/Transforms/MinkowskiedObject.cs
index 1af5640..3b4693c 100644
--- a/OSCADSharp/OSCADSharp/Transforms/MinkowskiedObject.cs
+++ b/OSCADSharp/OSCADSharp/Transforms/MinkowskiedObject.cs
@@ -15,6 +15,11 @@ namespace OSCADSharp.Transforms
         
         public MinkowskiedObject(IEnumerable<OSCADObject> children) : base("minkowski()", children)
         {
-        }        
+        }
+
+        public override Vector3 Position()
+        {
+            throw new NotSupportedException("Position is not supported on Minkowskied objects.");
+        }
     }
 }