diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 00000000..7408a4db
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: ['https://hiron.fanbox.cc/']
diff --git a/.github/workflows/dotnet-grasshopper.yml b/.github/workflows/dotnet-grasshopper.yml
new file mode 100644
index 00000000..638707e0
--- /dev/null
+++ b/.github/workflows/dotnet-grasshopper.yml
@@ -0,0 +1,59 @@
+name: Build Grasshopper Plugin
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+    
+jobs:
+  build:
+    strategy:
+      matrix:
+        configuration: [Debug, Release]
+
+    runs-on: windows-latest  # For a list of available runner types, refer to
+
+    env:
+      Solution_Name: HoaryFox.sln
+      Plugin_File_Name: HoaryFox
+      Debug_File_Path: '.\HoaryFox\bin\'
+      Release_File_Path: '.\HoaryFox\release\'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup MSBuild.exe
+        uses: microsoft/setup-msbuild@v1
+
+      - name: Setup NuGet
+        uses: NuGet/setup-nuget@v1
+
+      - name: Restore the application
+        run: msbuild $env:Solution_Name /t:Restore /p:Configuration=$env:Configuration
+        env:
+          Configuration: ${{ matrix.configuration }}
+
+      - name: Build the application
+        run: msbuild $env:Solution_Name /p:Configuration=$env:Configuration
+        env:
+          Configuration: ${{ matrix.configuration }}
+          
+      - name: Copy karambaConnect to /HoaryFox/bin dir
+        shell: powershell
+        run: cp ./karambaConnect/bin/karambaConnect.gha ./HoaryFox/bin/karambaConnect.gha
+          
+      - name: Upload release build of plugin as artefact
+        if: ${{ matrix.configuration == 'Release' }} # Only upload gha from a release build
+        uses: actions/upload-artifact@v2
+        with:
+          name: HoaryFox
+          path: |
+             ./HoaryFox/bin/HoaryFox.gha
+             ./HoaryFox/bin/STBReader.dll
+             ./HoaryFox/bin/karambaConnect.gha
+             
+             
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 7be0320b..00000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "HoaryFox/STBReader"]
-	path = HoaryFox/STBReader
-	url = https://github.com/hrntsm/STBReader
diff --git a/HoaryFox.sln b/HoaryFox.sln
index d45330dd..0afa892b 100644
--- a/HoaryFox.sln
+++ b/HoaryFox.sln
@@ -1,10 +1,12 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.28307.705
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30711.63
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HoaryFox", "HoaryFox\HoaryFox.csproj", "{9637855D-D144-4448-9F56-A391A3575DAC}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "karambaConnect", "karambaConnect\karambaConnect.csproj", "{CD5D3228-2B3E-4112-9B42-C82615673DFE}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{9637855D-D144-4448-9F56-A391A3575DAC}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9637855D-D144-4448-9F56-A391A3575DAC}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9637855D-D144-4448-9F56-A391A3575DAC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CD5D3228-2B3E-4112-9B42-C82615673DFE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CD5D3228-2B3E-4112-9B42-C82615673DFE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CD5D3228-2B3E-4112-9B42-C82615673DFE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CD5D3228-2B3E-4112-9B42-C82615673DFE}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/HoaryFox/HoaryFox.csproj b/HoaryFox/HoaryFox.csproj
index 9df1812d..314f83a9 100644
--- a/HoaryFox/HoaryFox.csproj
+++ b/HoaryFox/HoaryFox.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>HoaryFox</RootNamespace>
     <AssemblyName>HoaryFox</AssemblyName>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <IsWebBootstrapper>false</IsWebBootstrapper>
     <TargetFrameworkProfile />
@@ -38,7 +38,6 @@
     <Compile Include="Component\Base\NameTagBase.cs" />
     <Compile Include="Component\Base\SecTagBase.cs" />
     <Compile Include="Component\IO\StbLoader.cs" />
-    <Compile Include="Component\IO\Stb2KElem.cs" />
     <Compile Include="Component\Bar\Stb2Bar.cs" />
     <Compile Include="Component\Geometry\Stb2Line.cs" />
     <Compile Include="Component\Geometry\Stb2Brep.cs" />
@@ -52,8 +51,6 @@
     <Compile Include="Component\Tag\Section\ColumnSecTag.cs" />
     <Compile Include="Component\Tag\Section\GirderSecTag.cs" />
     <Compile Include="Component\Tag\Section\PostSecTag.cs" />
-    <Compile Include="KarambaConnect\CrossSection.cs" />
-    <Compile Include="KarambaConnect\Element.cs" />
     <Compile Include="Member\CreateBreps.cs" />
     <Compile Include="Member\FrameLines.cs" />
     <Compile Include="Member\CreateBar.cs" />
@@ -62,17 +59,6 @@
     <Compile Include="Member\FramePoints.cs" />
     <Compile Include="Member\ShapeInfo.cs" />
     <Compile Include="Member\SteelCroSecBrep.cs" />
-    <Compile Include="STBReader\STBReader\Member\Base.cs" />
-    <Compile Include="STBReader\STBReader\Member\Enum.cs" />
-    <Compile Include="STBReader\STBReader\Member\Members.cs" />
-    <Compile Include="STBReader\STBReader\Model\Base.cs" />
-    <Compile Include="STBReader\STBReader\Model\Enum.cs" />
-    <Compile Include="STBReader\STBReader\Model\Models.cs" />
-    <Compile Include="STBReader\STBReader\Section\Base.cs" />
-    <Compile Include="STBReader\STBReader\Section\Enum.cs" />
-    <Compile Include="STBReader\STBReader\Section\Sections.cs" />
-    <Compile Include="STBReader\STBReader\StbBase.cs" />
-    <Compile Include="STBReader\STBReader\StbData.cs" />
     <Compile Include="HoaryFoxInfo.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Properties\Resource.Designer.cs">
@@ -82,32 +68,10 @@
     </Compile>
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="Eto, Version=2.5.0.0, Culture=neutral, PublicKeyToken=552281e97c755530, processorArchitecture=MSIL">
-      <HintPath>..\packages\RhinoCommon.6.29.20238.11501\lib\net45\Eto.dll</HintPath>
-    </Reference>
-    <Reference Include="GH_IO, Version=6.29.20238.11500, Culture=neutral, PublicKeyToken=6a29997d2e6b4f97, processorArchitecture=MSIL">
-      <HintPath>..\packages\Grasshopper.6.29.20238.11501\lib\net45\GH_IO.dll</HintPath>
-    </Reference>
-    <Reference Include="GH_Util">
-      <HintPath>C:\Program Files\Rhino 6\Plug-ins\Grasshopper\GH_Util.dll</HintPath>
-      <Private>False</Private>
-    </Reference>
-    <Reference Include="Grasshopper, Version=6.29.20238.11500, Culture=neutral, PublicKeyToken=dda4f5ec2cd80803, processorArchitecture=MSIL">
-      <HintPath>..\packages\Grasshopper.6.29.20238.11501\lib\net45\Grasshopper.dll</HintPath>
-    </Reference>
-    <Reference Include="karambaCommon">
-      <HintPath>..\..\..\..\AppData\Roaming\Grasshopper\Libraries\Karamba\karambaCommon.dll</HintPath>
-      <Private>False</Private>
-    </Reference>
-    <Reference Include="karambaGH, Version=1.15.0.0, Culture=neutral, PublicKeyToken=null">
-      <HintPath>..\..\..\..\AppData\Roaming\Grasshopper\Libraries\Karamba\karamba.gha</HintPath>
-      <Private>False</Private>
-    </Reference>
-    <Reference Include="Rhino.UI, Version=6.29.20238.11500, Culture=neutral, PublicKeyToken=552281e97c755530, processorArchitecture=MSIL">
-      <HintPath>..\packages\RhinoCommon.6.29.20238.11501\lib\net45\Rhino.UI.dll</HintPath>
-    </Reference>
-    <Reference Include="RhinoCommon, Version=6.29.20238.11500, Culture=neutral, PublicKeyToken=552281e97c755530, processorArchitecture=MSIL">
-      <HintPath>..\packages\RhinoCommon.6.29.20238.11501\lib\net45\RhinoCommon.dll</HintPath>
+    <Reference Include="STBReader, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>Library\STBReader.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Drawing" />
@@ -115,7 +79,6 @@
     <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
-    <None Include="packages.config" />
     <None Include="Resources\Brep.afdesign" />
     <None Include="Resources\Brep.png" />
     <None Include="Resources\ColumnName.png" />
@@ -144,10 +107,22 @@
     <None Include="Resources\InfoIcon.png" />
   </ItemGroup>
   <ItemGroup>
+    <Content Include="Library\STBReader.dll" />
     <Content Include="Resources\InfoIcon_Info.txt" />
     <None Include="Resources\LoadStb.png" />
     <None Include="Resources\ToKaramba.png" />
   </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Grasshopper">
+      <Version>6.20.19322.20361</Version>
+      <IncludeAssets>compile; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="RhinoCommon">
+      <Version>6.20.19322.20361</Version>
+      <IncludeAssets>compile; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
        Other similar extension points exist, see Microsoft.Common.targets.
@@ -168,15 +143,5 @@ Erase "$(TargetPath)"</PostBuildEvent>
     <StartArguments>
     </StartArguments>
     <StartAction>Program</StartAction>
-    <RunCodeAnalysis>true</RunCodeAnalysis>
   </PropertyGroup>
-  <Import Project="..\packages\RhinoCommon.6.29.20238.11501\build\net45\RhinoCommon.targets" Condition="Exists('..\packages\RhinoCommon.6.29.20238.11501\build\net45\RhinoCommon.targets')" />
-  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
-    <PropertyGroup>
-      <ErrorText>このプロジェクトは、このコンピューター上にない NuGet パッケージを参照しています。それらのパッケージをダウンロードするには、[NuGet パッケージの復元] を使用します。詳細については、http://go.microsoft.com/fwlink/?LinkID=322105 を参照してください。見つからないファイルは {0} です。</ErrorText>
-    </PropertyGroup>
-    <Error Condition="!Exists('..\packages\RhinoCommon.6.29.20238.11501\build\net45\RhinoCommon.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\RhinoCommon.6.29.20238.11501\build\net45\RhinoCommon.targets'))" />
-    <Error Condition="!Exists('..\packages\Grasshopper.6.29.20238.11501\build\net45\Grasshopper.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Grasshopper.6.29.20238.11501\build\net45\Grasshopper.targets'))" />
-  </Target>
-  <Import Project="..\packages\Grasshopper.6.29.20238.11501\build\net45\Grasshopper.targets" Condition="Exists('..\packages\Grasshopper.6.29.20238.11501\build\net45\Grasshopper.targets')" />
 </Project>
\ No newline at end of file
diff --git a/HoaryFox/Library/STBReader.dll b/HoaryFox/Library/STBReader.dll
new file mode 100644
index 00000000..c2851d80
Binary files /dev/null and b/HoaryFox/Library/STBReader.dll differ
diff --git a/HoaryFox/Properties/Resource.Designer.cs b/HoaryFox/Properties/Resource.Designer.cs
index db135b4f..889a4167 100644
--- a/HoaryFox/Properties/Resource.Designer.cs
+++ b/HoaryFox/Properties/Resource.Designer.cs
@@ -19,7 +19,7 @@ namespace HoaryFox.Properties {
     // または Visual Studio のようなツールを使用して自動生成されました。
     // メンバーを追加または削除するには、.ResX ファイルを編集して、/str オプションと共に
     // ResGen を実行し直すか、または VS プロジェクトをビルドし直します。
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0")]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
     internal class Resource {
diff --git a/HoaryFox/STBReader b/HoaryFox/STBReader
deleted file mode 160000
index 872ca18f..00000000
--- a/HoaryFox/STBReader
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 872ca18f9dac1437696dbeceb6316015ed07b9eb
diff --git a/HoaryFox/packages.config b/HoaryFox/packages.config
deleted file mode 100644
index 971cef3e..00000000
--- a/HoaryFox/packages.config
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="Grasshopper" version="6.29.20238.11501" targetFramework="net461" />
-  <package id="RhinoCommon" version="6.29.20238.11501" targetFramework="net461" />
-</packages>
\ No newline at end of file
diff --git a/HoaryFox/Component/IO/Stb2KElem.cs b/karambaConnect/Component/Stb2KElem.cs
similarity index 96%
rename from HoaryFox/Component/IO/Stb2KElem.cs
rename to karambaConnect/Component/Stb2KElem.cs
index ab55b10a..1b2a8ccd 100644
--- a/HoaryFox/Component/IO/Stb2KElem.cs
+++ b/karambaConnect/Component/Stb2KElem.cs
@@ -5,14 +5,14 @@
 using Grasshopper.Kernel;
 using HoaryFox.KarambaConnect;
 using STBReader;
+using STBReader.Model;
+using STBReader.Member;
 using Karamba.CrossSections;
 using Karamba.Elements;
 using Karamba.Geometry;
 using Karamba.GHopper.CrossSections;
 using Karamba.GHopper.Elements;
 using Karamba.Utilities;
-using STBReader.Member;
-using STBReader.Model;
 
 namespace HoaryFox.Component.IO
 {
@@ -59,7 +59,7 @@ protected override void SolveInstance(IGH_DataAccess DA)
             DA.SetDataList(1, k3CroSec);
         }
 
-        protected override Bitmap Icon => Properties.Resource.ToKaramba;
+        protected override Bitmap Icon => karambaConnect.Properties.Resource.ToKaramba;
         public override Guid ComponentGuid => new Guid("C57461DA-E79B-49A0-B44B-71CF32057709");
     }
 }
diff --git a/HoaryFox/KarambaConnect/CrossSection.cs b/karambaConnect/KarambaConnect/CrossSection.cs
similarity index 100%
rename from HoaryFox/KarambaConnect/CrossSection.cs
rename to karambaConnect/KarambaConnect/CrossSection.cs
diff --git a/HoaryFox/KarambaConnect/Element.cs b/karambaConnect/KarambaConnect/Element.cs
similarity index 61%
rename from HoaryFox/KarambaConnect/Element.cs
rename to karambaConnect/KarambaConnect/Element.cs
index dc5abe3c..37e9ab6d 100644
--- a/HoaryFox/KarambaConnect/Element.cs
+++ b/karambaConnect/KarambaConnect/Element.cs
@@ -13,14 +13,11 @@ public static class Element
     {
         public static List<BuilderBeam> BuilderBeams(StbData stbData, List<string>[] k3Ids)
         {
-            var logger = new MessageLogger();
             var k3d = new KarambaCommon.Toolkit();
             var elems = new List<BuilderBeam>();
             StbNodes nodes = stbData.Nodes;
             
-            var k3Elems = new List<Line3>[2];
-            k3Elems[0] = new List<Line3>();
-            k3Elems[1] = new List<Line3>();
+            var k3Elems = new[]{ new List<Line3>() , new List<Line3>() };
 
             foreach (StbFrame frame in new List<StbFrame>{ stbData.Columns, stbData.Girders, stbData.Braces} )
             {
@@ -31,19 +28,11 @@ public static List<BuilderBeam> BuilderBeams(StbData stbData, List<string>[] k3I
                 {
                     int idNodeStart = nodes.Id.IndexOf(frame.IdNodeStart[i]);
                     int idNodeEnd = nodes.Id.IndexOf(frame.IdNodeEnd[i]);
-                    var p0 = new Karamba.Geometry.Point3(
-                        nodes.Position[idNodeStart].X / 1000d,
-                        nodes.Position[idNodeStart].Y / 1000d,
-                        nodes.Position[idNodeStart].Z / 1000d
-                    );
-                    var p1 = new Karamba.Geometry.Point3(
-                        nodes.Position[idNodeEnd].X / 1000d,
-                        nodes.Position[idNodeEnd].Y / 1000d,
-                        nodes.Position[idNodeEnd].Z / 1000d
-                    );
+                    var p0 = new Karamba.Geometry.Point3(nodes.Position[idNodeStart].X / 1000d, nodes.Position[idNodeStart].Y / 1000d, nodes.Position[idNodeStart].Z / 1000d);
+                    var p1 = new Karamba.Geometry.Point3(nodes.Position[idNodeEnd].X / 1000d, nodes.Position[idNodeEnd].Y / 1000d, nodes.Position[idNodeEnd].Z / 1000d);
                     k3Elems[elemIndex].Add(new Line3(p0, p1));
                 }
-                elems.AddRange(k3d.Part.LineToBeam(k3Elems[elemIndex], k3Ids[elemIndex], new List<CroSec>(), logger, out _, bending));
+                elems.AddRange(k3d.Part.LineToBeam(k3Elems[elemIndex], k3Ids[elemIndex], new List<CroSec>(), new MessageLogger(), out _, bending));
             }
 
             return elems;
diff --git a/karambaConnect/Library/STBReader.dll b/karambaConnect/Library/STBReader.dll
new file mode 100644
index 00000000..c2851d80
Binary files /dev/null and b/karambaConnect/Library/STBReader.dll differ
diff --git a/karambaConnect/Library/karamba132/karambaCommon.dll b/karambaConnect/Library/karamba132/karambaCommon.dll
new file mode 100644
index 00000000..007a79a0
Binary files /dev/null and b/karambaConnect/Library/karamba132/karambaCommon.dll differ
diff --git a/karambaConnect/Library/karamba132/karambaGH.dll b/karambaConnect/Library/karamba132/karambaGH.dll
new file mode 100644
index 00000000..4d64f821
Binary files /dev/null and b/karambaConnect/Library/karamba132/karambaGH.dll differ
diff --git a/karambaConnect/Library/karamba132full/kConnect.dll b/karambaConnect/Library/karamba132full/kConnect.dll
new file mode 100644
index 00000000..ff3fffcc
Binary files /dev/null and b/karambaConnect/Library/karamba132full/kConnect.dll differ
diff --git a/karambaConnect/Library/karamba132full/karambaCommon.dll b/karambaConnect/Library/karamba132full/karambaCommon.dll
new file mode 100644
index 00000000..34294a37
Binary files /dev/null and b/karambaConnect/Library/karamba132full/karambaCommon.dll differ
diff --git a/karambaConnect/Library/karamba133/karambaCommon.dll b/karambaConnect/Library/karamba133/karambaCommon.dll
new file mode 100644
index 00000000..53c318ec
Binary files /dev/null and b/karambaConnect/Library/karamba133/karambaCommon.dll differ
diff --git a/karambaConnect/Library/karamba133/karambaGH.dll b/karambaConnect/Library/karamba133/karambaGH.dll
new file mode 100644
index 00000000..c00e90ec
Binary files /dev/null and b/karambaConnect/Library/karamba133/karambaGH.dll differ
diff --git a/karambaConnect/Properties/AssemblyInfo.cs b/karambaConnect/Properties/AssemblyInfo.cs
new file mode 100644
index 00000000..032c241f
--- /dev/null
+++ b/karambaConnect/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("HoaryFox(karambaConnect)")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("hrntsm")]
+[assembly: AssemblyProduct("HoaryFox(karambaConnect)")]
+[assembly: AssemblyCopyright("Copyright ©hrntsm 2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("cd5d3228-2b3e-4112-9b42-c82615673dfe")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/karambaConnect/Properties/Resource.Designer.cs b/karambaConnect/Properties/Resource.Designer.cs
new file mode 100644
index 00000000..fd0d121b
--- /dev/null
+++ b/karambaConnect/Properties/Resource.Designer.cs
@@ -0,0 +1,73 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     このコードはツールによって生成されました。
+//     ランタイム バージョン:4.0.30319.42000
+//
+//     このファイルへの変更は、以下の状況下で不正な動作の原因になったり、
+//     コードが再生成されるときに損失したりします。
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace karambaConnect.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   ローカライズされた文字列などを検索するための、厳密に型指定されたリソース クラスです。
+    /// </summary>
+    // このクラスは StronglyTypedResourceBuilder クラスが ResGen
+    // または Visual Studio のようなツールを使用して自動生成されました。
+    // メンバーを追加または削除するには、.ResX ファイルを編集して、/str オプションと共に
+    // ResGen を実行し直すか、または VS プロジェクトをビルドし直します。
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resource {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resource() {
+        }
+        
+        /// <summary>
+        ///   このクラスで使用されているキャッシュされた ResourceManager インスタンスを返します。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("karambaConnect.Properties.Resource", typeof(Resource).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   すべてについて、現在のスレッドの CurrentUICulture プロパティをオーバーライドします
+        ///   現在のスレッドの CurrentUICulture プロパティをオーバーライドします。
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   型 System.Drawing.Bitmap のローカライズされたリソースを検索します。
+        /// </summary>
+        internal static System.Drawing.Bitmap ToKaramba {
+            get {
+                object obj = ResourceManager.GetObject("ToKaramba", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+    }
+}
diff --git a/karambaConnect/Properties/Resource.resx b/karambaConnect/Properties/Resource.resx
new file mode 100644
index 00000000..fb5f3a7d
--- /dev/null
+++ b/karambaConnect/Properties/Resource.resx
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="ToKaramba" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\resources\tokaramba.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+</root>
\ No newline at end of file
diff --git a/karambaConnect/Resources/ToKaramba.png b/karambaConnect/Resources/ToKaramba.png
new file mode 100644
index 00000000..cad94734
Binary files /dev/null and b/karambaConnect/Resources/ToKaramba.png differ
diff --git a/karambaConnect/karambaConnect.csproj b/karambaConnect/karambaConnect.csproj
new file mode 100644
index 00000000..28c501d2
--- /dev/null
+++ b/karambaConnect/karambaConnect.csproj
@@ -0,0 +1,116 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{CD5D3228-2B3E-4112-9B42-C82615673DFE}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>karambaConnect</RootNamespace>
+    <AssemblyName>karambaConnect</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <IsWebBootstrapper>false</IsWebBootstrapper>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisIgnoreBuiltInRules>false</CodeAnalysisIgnoreBuiltInRules>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="karambaCommon, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>Library\karamba132full\karambaCommon.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="kConnect, Version=1.15.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>Library\karamba132full\kConnect.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="STBReader">
+      <HintPath>Library\STBReader.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Component\Stb2KElem.cs" />
+    <Compile Include="karambaConnectInfo.cs" />
+    <Compile Include="KarambaConnect\CrossSection.cs" />
+    <Compile Include="KarambaConnect\Element.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Properties\Resource.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Resource.resx</DependentUpon>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Library\karamba132full\karambaCommon.dll" />
+    <Content Include="Library\karamba132full\kConnect.dll" />
+    <Content Include="Library\karamba132\karambaCommon.dll" />
+    <Content Include="Library\karamba132\karambaGH.dll" />
+    <Content Include="Library\karamba133\karambaCommon.dll" />
+    <Content Include="Library\karamba133\karambaGH.dll" />
+    <None Include="Resources\ToKaramba.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="Properties\Resource.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resource.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Grasshopper">
+      <Version>6.20.19322.20361</Version>
+      <IncludeAssets>compile; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="RhinoCommon">
+      <Version>6.20.19322.20361</Version>
+      <IncludeAssets>compile; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+  <PropertyGroup>
+    <PostBuildEvent>Copy "$(TargetPath)" "$(TargetDir)$(ProjectName).gha"
+Erase "$(TargetPath)"</PostBuildEvent>
+  </PropertyGroup>
+  <PropertyGroup>
+    <FallbackCulture>en-US</FallbackCulture>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
+    <StartProgram>C:\Program Files\Rhino 6\System\Rhino.exe</StartProgram>
+    <StartArguments>
+    </StartArguments>
+    <StartAction>Program</StartAction>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/karambaConnect/karambaConnectInfo.cs b/karambaConnect/karambaConnectInfo.cs
new file mode 100644
index 00000000..26369fba
--- /dev/null
+++ b/karambaConnect/karambaConnectInfo.cs
@@ -0,0 +1,21 @@
+using Grasshopper.Kernel;
+using System;
+using System.Drawing;
+
+namespace karambaConnect
+{
+    public class karambaConnectInfo : GH_AssemblyInfo
+    {
+        public override string Name => "HoaryFox(karambaConnect)";
+
+        public override Bitmap Icon => null;
+
+        public override string Description => "HoaryFox karamba connect extension";
+
+        public override Guid Id => new Guid("ffa60c17-4050-4232-96db-011eccbd402d");
+
+        public override string AuthorName => "hrntsm";
+
+        public override string AuthorContact => "contact@hrntsm.com";
+    }
+}