diff --git a/OSCADSharp/OSCADSharp/OSCADSharp.csproj b/OSCADSharp/OSCADSharp/OSCADSharp.csproj
index 8289d91..8688971 100644
--- a/OSCADSharp/OSCADSharp/OSCADSharp.csproj
+++ b/OSCADSharp/OSCADSharp/OSCADSharp.csproj
@@ -40,6 +40,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Transforms\LinearExtrudedObject.cs" />
     <Compile Include="Scripting\BlockFormatter.cs" />
     <Compile Include="Scripting\BlockStatementObject.cs" />
     <Compile Include="Booleans\Difference.cs" />
diff --git a/OSCADSharp/OSCADSharp/Text3D.cs b/OSCADSharp/OSCADSharp/Text3D.cs
index f27b481..866ebbf 100644
--- a/OSCADSharp/OSCADSharp/Text3D.cs
+++ b/OSCADSharp/OSCADSharp/Text3D.cs
@@ -20,20 +20,20 @@ namespace OSCADSharp
         /// The generated text will have approximately an ascent of the given value (height above the baseline). Default is 10.
         /// Note that specific fonts will vary somewhat and may not fill the size specified exactly, usually slightly smaller.
         /// </summary>
-        public uint Size { get; set; }
+        public uint? Size { get; set; } = null;
 
         /// <summary>
         /// The name of the font that should be used. This is not the name of the font file, 
         /// but the logical font name (internally handled by the fontconfig library). This can also include a style parameter, see below. 
         /// A list of installed fonts & styles can be obtained using the font list dialog (Help -> Font List).
         /// </summary>
-        public string Font { get; set; }
+        public string Font { get; set; } = null;
 
         /// <summary>
         /// The horizontal alignment for the text. Possible values are "left", "center" and "right". Default is "left".
         /// </summary>
         /// TODO: Implement alignments
-        public string HorizontalAlignment { get; set; }
+        //public string HorizontalAlignment { get; set; }
 
         /// <summary>
         /// The vertical alignment for the text. Possible values are "top", "center", "baseline" and "bottom". Default is "baseline".
@@ -44,7 +44,7 @@ namespace OSCADSharp
         /// <summary>
         /// Factor to increase/decrease the character spacing. The default value of 1 will result in the normal spacing for the font, giving a value greater than 1 will cause the letters to be spaced further apart.
         /// </summary>
-        public uint Spacing { get; set; }
+        public uint? Spacing { get; set; } = null;
 
         /// <summary>
         /// Direction of the text flow. Possible values are "ltr" (left-to-right), "rtl" (right-to-left), "ttb" (top-to-bottom) and "btt" (bottom-to-top). Default is "ltr".
@@ -55,22 +55,38 @@ namespace OSCADSharp
         /// The language of the text. Default is "en".
         /// </summary>
         public string Language { get; set; }
-
+        
         /// <summary>
         /// Used for subdividing the curved path segments provided by freetype
         /// ($fn in OpenSCAD)
         /// </summary>
-        public int Resolution { get; set; } = 0;
+        /// TODO: Implement Resolution
+        // public int? Resolution { get; set; } = 0;
+
+        /// <summary>
+        /// The script of the text. Default is "latin".
+        /// </summary>
+        /// TODO: Implement Script
+        // public string Script { get; set; }
 
         public override OSCADObject Clone()
         {
-            throw new NotImplementedException();
+            return new Text3D()
+            {
+                Text = this.Text,
+                Size = this.Size,
+                Font = this.Font,
+                Spacing = this.Spacing,
+                TextDirection = this.TextDirection,
+                Language = this.Language                
+            };
         }
 
-        private void appendValueIfExists(string name, string value, StringBuilder sb)
+        private void appendIfValueNotNullOrEmpty(string name, string value, StringBuilder sb)
         {
             if(!String.IsNullOrEmpty(value))
             {
+                sb.Append(", ");
                 sb.Append(name);
                 sb.Append("=");
                 sb.Append(value);
@@ -85,10 +101,15 @@ namespace OSCADSharp
             sb.Append(this.Text);
             sb.Append("\"");
 
-            appendValueIfExists("font", this.Font, sb);
+            appendIfValueNotNullOrEmpty("size", this.Size?.ToString(), sb);
+            appendIfValueNotNullOrEmpty("font", this.Font, sb);
+            appendIfValueNotNullOrEmpty("spacing", this.Spacing?.ToString(), sb);
+            appendIfValueNotNullOrEmpty("direction", this.TextDirection?.ToString(), sb);
+            appendIfValueNotNullOrEmpty("language", this.Language?.ToString(), sb);            
+
             sb.Append(");");
 
-            return base.ToString();
+            return sb.ToString();
         }
     }
 }
diff --git a/OSCADSharp/OSCADSharp/Transforms/LinearExtrudedObject.cs b/OSCADSharp/OSCADSharp/Transforms/LinearExtrudedObject.cs
new file mode 100644
index 0000000..dbb8605
--- /dev/null
+++ b/OSCADSharp/OSCADSharp/Transforms/LinearExtrudedObject.cs
@@ -0,0 +1,50 @@
+using OSCADSharp.Scripting;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OSCADSharp.Transforms
+{
+    /// <summary>
+    /// Linear Extrusion is a modeling operation that takes a 2D polygon as input and extends it in the third dimension. This way a 3D shape is created.
+    /// 
+    /// This is a limited subset of the capabilities
+    /// </summary>
+    internal class LinearExtrudedObject : OSCADObject
+    {
+        /// <summary>
+        /// Height to extrude to
+        /// </summary>
+        public double Height { get; set; } = 1.0;
+        private OSCADObject obj;
+
+        //TODO: Possibly implement everything else?
+        //linear_extrude(height = fanwidth, center = true, convexity = 10, twist = -fanrot, slices = 20, scale = 1.0) {...}        
+
+        /// <summary>
+        /// An object that will be extruded from 2d to 3d
+        /// </summary>
+        /// <param name="obj"></param>
+        /// <param name="height"></param>
+        public LinearExtrudedObject(OSCADObject obj, double height)
+        {
+            this.obj = obj;
+            this.Height = height;
+        }
+
+
+        public override OSCADObject Clone()
+        {
+            return new LinearExtrudedObject(this.obj, this.Height);
+        }
+
+        public override string ToString()
+        {
+            string extrudeCommand = String.Format("linear_extrude(height = {0})", this.Height.ToString());
+            var formatter = new BlockFormatter(extrudeCommand, this.obj.ToString());
+            return formatter.ToString();
+        }
+    }
+}