diff --git a/EtchBendLines/App.config b/EtchBendLines/App.config
index 8a70eab..03eba7f 100644
--- a/EtchBendLines/App.config
+++ b/EtchBendLines/App.config
@@ -5,5 +5,6 @@
   </startup>
   <appSettings>
     <add key="MaxBendRadius" value="2.0"/>
+    <add key="EtchLength" value="1.0"/>
   </appSettings>
 </configuration>
\ No newline at end of file
diff --git a/EtchBendLines/EtchBendLines.csproj b/EtchBendLines/EtchBendLines.csproj
index b10db63..761f21d 100644
--- a/EtchBendLines/EtchBendLines.csproj
+++ b/EtchBendLines/EtchBendLines.csproj
@@ -49,6 +49,7 @@
     <Compile Include="Bend.cs" />
     <Compile Include="BendDirection.cs" />
     <Compile Include="BendLineExtractor.cs" />
+    <Compile Include="Etcher.cs" />
     <Compile Include="Extensions.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
diff --git a/EtchBendLines/Etcher.cs b/EtchBendLines/Etcher.cs
new file mode 100644
index 0000000..63a8aef
--- /dev/null
+++ b/EtchBendLines/Etcher.cs
@@ -0,0 +1,90 @@
+using netDxf;
+using netDxf.Tables;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace EtchBendLines
+{
+    public class Etcher
+    {
+        public Layer BendLayer = new Layer("BEND")
+        {
+            Color = AciColor.Yellow
+        };
+
+        public double EtchLength { get; set; } = 1.0;
+
+        public double MaxBendRadius { get; set; } = 4.0;
+
+        public void AddEtchLines(string filePath)
+        {
+            Console.WriteLine(filePath);
+
+            var bendLineExtractor = new BendLineExtractor(filePath);
+            bendLineExtractor.MaxBendRadius = MaxBendRadius;
+
+            var bendLines = bendLineExtractor.GetBendLines();
+
+            if (bendLines.Count == 0)
+            {
+                Console.WriteLine("No bend lines found.");
+                return;
+            }
+            else
+            {
+                Console.WriteLine($"Found {bendLines.Count} bend lines.");
+            }
+
+            foreach (var bendLine in bendLines)
+            {
+                bendLine.Line.Layer = BendLayer;
+                bendLine.Line.Color = AciColor.ByLayer;
+                bendLine.BendNote.Layer = BendLayer;
+            }
+
+            var upBends = bendLines.Where(b => b.Direction == BendDirection.Up);
+            var upBendCount = upBends.Count();
+            var downBendCount = bendLines.Count - upBendCount;
+
+            Console.WriteLine($"{upBendCount} Up     {downBendCount} Down");
+
+            foreach (var bendline in upBends)
+            {
+                var etchLines = bendline.GetEtchLines(EtchLength);
+
+                foreach (var etchLine in etchLines)
+                {
+                    var existing = bendLineExtractor.DxfDocument.Lines
+                        .Where(l => IsEtchLayer(l.Layer))
+                        .FirstOrDefault(l => l.StartPoint.IsEqualTo(etchLine.StartPoint) && l.EndPoint.IsEqualTo(etchLine.EndPoint));
+
+                    if (existing != null)
+                    {
+                        // ensure the layer is correct and skip adding the etch line since it already exists.
+                        existing.Layer = etchLine.Layer;
+                        continue;
+                    }
+
+                    bendLineExtractor.DxfDocument.AddEntity(etchLine);
+                }
+            }
+
+            bendLineExtractor.DxfDocument.Save(filePath);
+        }
+
+        private bool IsEtchLayer(Layer layer)
+        {
+            if (layer.Name == "ETCH")
+                return true;
+
+            if (layer.Name == "SCRIBE")
+                return true;
+
+            if (layer.Name == "SCRIBE-TEXT")
+                return true;
+
+            return false;
+        }
+    }
+}
diff --git a/EtchBendLines/Program.cs b/EtchBendLines/Program.cs
index 1aee6f2..b8ca6b7 100644
--- a/EtchBendLines/Program.cs
+++ b/EtchBendLines/Program.cs
@@ -1,6 +1,4 @@
-using netDxf;
-using netDxf.Tables;
-using System;
+using System;
 using System.Collections.Generic;
 using System.Configuration;
 using System.IO;
@@ -11,18 +9,16 @@ namespace EtchBendLines
 {
     public class Program
     {
-        const double ETCH_LENGTH = 1.0;
-
-        static Layer BendLayer = new Layer("BEND")
-        {
-            Color = AciColor.Yellow
-        };
+        static Etcher etcher = new Etcher();
 
         static void Main(string[] args)
         {
             var path = AppDomain.CurrentDomain.BaseDirectory;
             var files = Directory.GetFiles(path, "*.dxf", SearchOption.AllDirectories);
 
+            etcher.EtchLength = double.Parse(ConfigurationManager.AppSettings["EtchLength"]);
+            etcher.MaxBendRadius = double.Parse(ConfigurationManager.AppSettings["MaxBendRadius"]);
+
             if (files == null || files.Length == 0)
             {
                 Console.WriteLine($"No DXF files founds. Place DXF files in \"{AppDomain.CurrentDomain.BaseDirectory}\" and run this program again.");
@@ -32,7 +28,7 @@ namespace EtchBendLines
 
             foreach (var file in files)
             {
-                AddEtchLines(file);
+                etcher.AddEtchLines(file);
                 Console.WriteLine();
             }
 
@@ -45,83 +41,6 @@ namespace EtchBendLines
             Console.ReadKey();
         }
 
-        public static void AddEtchLines(string filePath)
-        {
-            Console.WriteLine(filePath);
-
-            var bendLineExtractor = new BendLineExtractor(filePath);
-            bendLineExtractor.MaxBendRadius = MaxBendRadius;
-
-            var bendLines = bendLineExtractor.GetBendLines();
-
-            if (bendLines.Count == 0)
-            {
-                Console.WriteLine("No bend lines found.");
-                return;
-            }
-            else
-            {
-                Console.WriteLine($"Found {bendLines.Count} bend lines.");
-            }
-
-            foreach (var bendLine in bendLines)
-            {
-                bendLine.Line.Layer = BendLayer;
-                bendLine.Line.Color = AciColor.ByLayer;
-                bendLine.BendNote.Layer = BendLayer;
-            }
-
-            var upBends = bendLines.Where(b => b.Direction == BendDirection.Up);
-            var upBendCount = upBends.Count();
-            var downBendCount = bendLines.Count - upBendCount;
-
-            Console.WriteLine($"{upBendCount} Up     {downBendCount} Down");
-
-            var partType = GetPartType(bendLines);
-
-            foreach (var bendline in upBends)
-            {
-                var etchLines = bendline.GetEtchLines(ETCH_LENGTH);
-
-                foreach (var etchLine in etchLines)
-                {
-                    var existing = bendLineExtractor.DxfDocument.Lines
-                        .Where(l => IsEtchLayer(l.Layer))
-                        .FirstOrDefault(l => l.StartPoint.IsEqualTo(etchLine.StartPoint) && l.EndPoint.IsEqualTo(etchLine.EndPoint));
-
-                    if (existing != null)
-                    {
-                        // ensure the layer is correct and skip adding the etch line since it already exists.
-                        existing.Layer = etchLine.Layer;
-                        continue;
-                    }
-
-                    bendLineExtractor.DxfDocument.AddEntity(etchLine);
-                }
-            }
-
-            bendLineExtractor.DxfDocument.Save(filePath);
-        }
-
-        static bool IsEtchLayer(Layer layer)
-        {
-            if (layer.Name == "ETCH")
-                return true;
-
-            if (layer.Name == "SCRIBE")
-                return true;
-
-            if (layer.Name == "SCRIBE-TEXT")
-                return true;
-
-            return false;
-        }
-
-        static double MaxBendRadius
-        {
-            get { return double.Parse(ConfigurationManager.AppSettings["MaxBendRadius"]); }
-        }
-
         static PartType GetPartType(List<Bend> bends)
         {
             if (bends.Count == 0)