diff --git a/MatterControl.csproj b/MatterControl.csproj
index 30d5c7474..6e9320a09 100644
--- a/MatterControl.csproj
+++ b/MatterControl.csproj
@@ -107,6 +107,10 @@
       <Project>{74F6BB6C-9D02-4512-A59A-21940E35C532}</Project>
       <Name>Gui</Name>
     </ProjectReference>
+    <ProjectReference Include="Submodules\agg-sharp\VectorMath\VectorMath.csproj">
+      <Project>{d3e41b4e-bfbb-44ca-94c8-95c00f754fdd}</Project>
+      <Name>VectorMath</Name>
+    </ProjectReference>
     <ProjectReference Include="Submodules\MatterSlice\MatterSlice.csproj">
       <Project>{b0aed568-8796-42b9-baa9-ebc796134e78}</Project>
       <Name>MatterSlice</Name>
diff --git a/MatterControlLib/ApplicationView/SceneOperations.cs b/MatterControlLib/ApplicationView/SceneOperations.cs
index 1be4d832f..cd447c0bc 100644
--- a/MatterControlLib/ApplicationView/SceneOperations.cs
+++ b/MatterControlLib/ApplicationView/SceneOperations.cs
@@ -97,7 +97,10 @@ namespace MatterHackers.MatterControl
 				},
 				Icon = (invertIcon) => StaticData.Instance.LoadIcon("add_base.png", 16, 16, invertIcon).SetPreMultiply(),
 				HelpTextResolver = () => "*A path must be selected*".Localize(),
-				IsEnabled = (sceneContext) => sceneContext.Scene.SelectedItem != null && !(sceneContext.Scene.SelectedItem is IPathObject),
+				// this is for when base is working with generic meshes
+				//IsEnabled = (sceneContext) => sceneContext.Scene.SelectedItem != null && !(sceneContext.Scene.SelectedItem is IPathObject),
+				// this is for when only IPathObjects are working correctly
+				IsEnabled = (sceneContext) => sceneContext.Scene.SelectedItem != null && sceneContext.Scene.SelectedItem.DescendantsAndSelf().Where(i => i is IPathObject).Any(),
 			};
 		}
 
diff --git a/MatterControlLib/DesignTools/Primitives/BaseObject3D.cs b/MatterControlLib/DesignTools/Primitives/BaseObject3D.cs
index bb1ba147e..5f139fcda 100644
--- a/MatterControlLib/DesignTools/Primitives/BaseObject3D.cs
+++ b/MatterControlLib/DesignTools/Primitives/BaseObject3D.cs
@@ -39,7 +39,10 @@ using MatterHackers.Agg.VertexSource;
 using MatterHackers.DataConverters2D;
 using MatterHackers.DataConverters3D;
 using MatterHackers.Localizations;
+using MatterHackers.MatterControl.PartPreviewWindow;
 using MatterHackers.PolygonMesh.Csg;
+using MatterHackers.RenderOpenGl;
+using MatterHackers.RenderOpenGl.OpenGl;
 using MatterHackers.VectorMath;
 using Newtonsoft.Json;
 using Polygon = System.Collections.Generic.List<ClipperLib.IntPoint>;
@@ -56,7 +59,7 @@ namespace MatterHackers.MatterControl.DesignTools
 		Outline
 	}
 
-	public class BaseObject3D : Object3D, IPropertyGridModifier
+	public class BaseObject3D : Object3D, IPropertyGridModifier, IEditorDraw
 	{
 		public enum CenteringTypes
 		{
@@ -138,14 +141,23 @@ namespace MatterHackers.MatterControl.DesignTools
 			return totalSlice.CreateVertexStorage();
 		}
 
-		[JsonIgnore]
-		public IVertexSource VertexSource
+		private bool OutlineIsFromMesh
 		{
 			get
 			{
 				var vertexSource = (IPathObject)this.Descendants<IObject3D>().FirstOrDefault((i) => i is IPathObject);
 				var hasMesh = this.Descendants<IObject3D>().Where(m => m.Mesh != null).Any();
-				if (vertexSource?.VertexSource == null && hasMesh)
+
+				return vertexSource?.VertexSource == null && hasMesh;
+			}
+		}
+
+		[JsonIgnore]
+		public IVertexSource VertexSource
+		{
+			get
+			{
+				if (OutlineIsFromMesh)
 				{
 					if (meshVertexCache.vertexSource == null || meshVertexCache.height != CalculationHeight)
 					{
@@ -158,6 +170,7 @@ namespace MatterHackers.MatterControl.DesignTools
 					return meshVertexCache.vertexSource;
 				}
 
+				var vertexSource = (IPathObject)this.Descendants<IObject3D>().FirstOrDefault((i) => i is IPathObject);
 				return vertexSource?.VertexSource;
 			}
 
@@ -443,5 +456,18 @@ namespace MatterHackers.MatterControl.DesignTools
 				change.SetRowVisible(kvp.Key, () => kvp.Value);
 			}
 		}
+
+		public void DrawEditor(Object3DControlsLayer layer, List<Object3DView> transparentMeshes, DrawEventArgs e)
+		{
+			if (OutlineIsFromMesh)
+			{
+				var aabb = this.GetAxisAlignedBoundingBox(this.WorldMatrix());
+				// ExtrusionHeight
+				layer.World.RenderPathOutline(this.WorldMatrix() * Matrix4X4.CreateTranslation(0, 0, CalculationHeight - aabb.MinXYZ.Z + ExtrusionHeight), VertexSource, Agg.Color.Red, 5);
+
+				// turn the lighting back on
+				GL.Enable(EnableCap.Lighting);
+			}
+		}
 	}
 }
\ No newline at end of file
diff --git a/Program.cs b/Program.cs
index cd521c096..2c346338f 100644
--- a/Program.cs
+++ b/Program.cs
@@ -36,6 +36,7 @@ using System.Runtime.InteropServices;
 using System.ServiceModel;
 using System.ServiceModel.Description;
 using System.Threading;
+using MatterControl.Printing;
 using MatterHackers.Agg;
 using MatterHackers.Agg.Platform;
 using MatterHackers.Agg.UI;
@@ -43,6 +44,7 @@ using MatterHackers.MatterControl.DataStorage;
 using MatterHackers.MatterControl.SettingsManagement;
 using MatterHackers.MatterControl.SlicerConfiguration;
 using MatterHackers.SerialPortCommunication.FrostedSerial;
+using MatterHackers.VectorMath;
 using Microsoft.Extensions.Configuration;
 using Mindscape.Raygun4Net;
 using Photon.Parts;
@@ -92,7 +94,7 @@ namespace MatterHackers.MatterControl
 		[STAThread]
 		public static void Main(string[] args)
 		{
-#if false
+#if false // this is for some early testing of SLA output
 			var test = new PhotonFile();
 			void Progress(string message)
 			{
@@ -113,6 +115,36 @@ namespace MatterHackers.MatterControl
 			}
 #endif
 
+#if false // this is for processing print log exports
+			var filename = "C:\\Users\\LarsBrubaker\\Downloads\\210309 B2 print_log.txt";
+			var lines = File.ReadAllLines(filename);
+			var newPosition = default(Vector3);
+			var ePosition = 0.0;
+			var instruction = 0;
+			var layer = 0;
+			using (var writetext = new StreamWriter("C:\\Temp\\printlog.gcode"))
+			{
+				foreach (var line in lines)
+				{
+					if (line.Contains(" G1 "))
+					{
+						GCodeFile.GetFirstNumberAfter("X", line, ref newPosition.X);
+						GCodeFile.GetFirstNumberAfter("Y", line, ref newPosition.Y);
+						GCodeFile.GetFirstNumberAfter("Z", line, ref newPosition.Z);
+						GCodeFile.GetFirstNumberAfter("E", line, ref ePosition);
+
+						writetext.WriteLine($"G1 X{newPosition.X} Y{newPosition.Y} Z{newPosition.Z} E{ePosition}");
+						instruction++;
+
+						if(instruction % 500 == 0)
+						{
+							writetext.WriteLine($"; LAYER:{layer++}");
+						}
+					}
+				}
+			}
+#endif
+
 			// Set the global culture for the app, current thread and all new threads
 			CultureInfo.DefaultThreadCurrentCulture = CultureInfo.InvariantCulture;
 			CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.InvariantCulture;
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 859bcc06d..e6bd74906 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 859bcc06d3dd9afb98f6a395ca730230321bc985
+Subproject commit e6bd74906e62891c0e62d5129f30dfd2672bf55a