diff --git a/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs b/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs
index 5e22705..660e587 100644
--- a/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs
+++ b/OSCADSharp/OSCADSharp.ConsoleTests/Program.cs
@@ -14,23 +14,15 @@ namespace OSCADSharp.ConsoleTests
     {
         static void Main(string[] args)
         {
-            Variables.Global.Add("myColor", "\"Red\"");
-            Variables.Global.Add("sphereRadius", 15);
-            Variables.Global.Add("cubeWidth", 10);
+            var diam = new Variable("mainColumn", Sizes.HalfInch);
+            var height = new Variable("overallHeight", Sizes.QuarterInch);
+            Variables.Global.Add(diam);
+            Variables.Global.Add(height);
 
-            OSCADObject obj = new Sphere();
-            obj.Bind("Radius", Variables.Global["sphereRadius"]);
+            var cyl = new Cylinder(diam, diam, height);
+            
 
-            var cube = new Cube();
-            cube.Bind("Width", Variables.Global["cubeWidth"]);
-            cube.Bind("Height", Variables.Global["sphereRadius"]);
-            cube.Size.X = 30;
-            var cb = cube.Color(Variables.Global["myColor"]);
-
-
-            obj = obj + cb;
-
-            var pos = obj.Position();
+            var pos = cyl.Position();
             var cyl1 = new Cylinder(1, 100, true).Translate(pos);
             var cyl2 = new Cylinder(1, 100, true).Rotate(0, 90, 0).Translate(pos);
             var cyl3 = new Cylinder(1, 100, true).Rotate(90, 0, 0).Translate(pos);
@@ -39,7 +31,7 @@ namespace OSCADSharp.ConsoleTests
             //var topCorner = new Sphere().Translate(obj.Bounds().TopRight);
             //var botCorner = new Sphere().Translate(obj.Bounds().BottomLeft);
 
-            (obj  + axisHelper).ToFile("test.scad").Open();
+            (cyl + axisHelper).ToFile("test.scad").Open();
             
             //Console.ReadKey();
         }
diff --git a/OSCADSharp/OSCADSharp.UnitTests/Solids/CylinderTests.cs b/OSCADSharp/OSCADSharp.UnitTests/Solids/CylinderTests.cs
index fd9b5ea..7d0bd05 100644
--- a/OSCADSharp/OSCADSharp.UnitTests/Solids/CylinderTests.cs
+++ b/OSCADSharp/OSCADSharp.UnitTests/Solids/CylinderTests.cs
@@ -179,5 +179,24 @@ namespace OSCADSharp.UnitTests
             Assert.IsTrue(script.Contains("$fa = angle"));
             Assert.IsTrue(script.Contains("$fs = circLength"));
         }
+
+        [TestMethod]
+        public void Cylinder_CanCreatePreBoundCylinderWithConstructor()
+        {
+            var diam = new Variable("mainColumn", Sizes.HalfInch);
+            var height = new Variable("overallHeight", Sizes.QuarterInch);
+
+            var cyl = new Cylinder(diam, diam, height);
+
+            Assert.AreEqual(diam.Value, cyl.Diameter);
+            Assert.AreEqual(height.Value, cyl.Height);
+
+            string script = cyl.ToString();
+
+            Assert.IsTrue(script.Contains("d1 = mainColumn"));
+            Assert.IsTrue(script.Contains("d2 = mainColumn"));
+            Assert.IsTrue(script.Contains("h = overallHeight"));
+
+        }
     }
 }
diff --git a/OSCADSharp/OSCADSharp/Scripting/Variables.cs b/OSCADSharp/OSCADSharp/Scripting/Variables.cs
index 79a2367..84be48b 100644
--- a/OSCADSharp/OSCADSharp/Scripting/Variables.cs
+++ b/OSCADSharp/OSCADSharp/Scripting/Variables.cs
@@ -29,6 +29,15 @@ namespace OSCADSharp.Scripting
             this.variables[name] = new Variable(name, value);
         }
 
+        /// <summary>
+        /// Adds a variable to the collection
+        /// </summary>
+        /// <param name="variable"></param>
+        public void Add(Variable variable)
+        {
+            this.variables[variable.Name] = variable;
+        }
+
         /// <summary>
         /// Removes a variable from the collection
         /// </summary>
diff --git a/OSCADSharp/OSCADSharp/Solids/Cylinder.cs b/OSCADSharp/OSCADSharp/Solids/Cylinder.cs
index 9e1e71a..ad2391e 100644
--- a/OSCADSharp/OSCADSharp/Solids/Cylinder.cs
+++ b/OSCADSharp/OSCADSharp/Solids/Cylinder.cs
@@ -129,6 +129,28 @@ namespace OSCADSharp.Solids
             this.Height = height;
             this.Center = center;
         }
+
+        /// <summary>
+        /// Creates a cylinder with one or more pre-bound variables
+        /// </summary>
+        /// <param name="diameter1"></param>
+        /// <param name="diameter2"></param>
+        /// <param name="height"></param>
+        /// <param name="center"></param>
+        /// <param name="resolution"></param>
+        /// <param name="minimumangle"></param>
+        /// <param name="minimumcircumferentiallength"></param>
+        public Cylinder(Variable diameter1 = null, Variable diameter2 = null, Variable height = null, 
+            Variable center = null, Variable resolution = null, Variable minimumangle = null, Variable minimumcircumferentiallength = null)
+        {
+            this.BindIfVariableNotNull("diameter1", diameter1);
+            this.BindIfVariableNotNull("diameter2", diameter2);
+            this.BindIfVariableNotNull("height", height);
+            this.BindIfVariableNotNull("center", center);
+            this.BindIfVariableNotNull("resolution", resolution);
+            this.BindIfVariableNotNull("minimumangle", minimumangle);
+            this.BindIfVariableNotNull("minimumcircumferentiallength", minimumcircumferentiallength);
+        }
         #endregion
 
         #region Overrides
@@ -245,6 +267,7 @@ namespace OSCADSharp.Solids
             {"diameter", "d" },
             {"diameter1", "d1" },
             {"diameter2", "d2" },
+            {"height", "h" },
             {"resolution", "$fn" },
             {"minimumangle", "$fa" },
             {"minimumcircumferentiallength", "$fs" }