diff --git a/src/Mod/Part/App/ArcOfConicPy.xml b/src/Mod/Part/App/ArcOfConicPy.xml
index 487afdc330..43745ba0fe 100644
--- a/src/Mod/Part/App/ArcOfConicPy.xml
+++ b/src/Mod/Part/App/ArcOfConicPy.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
   <PythonExport
-      Father="ArcPy"
+      Father="TrimmedCurvePy"
       Name="ArcOfConicPy"
       PythonName="Part.ArcOfConic"
       Twin="GeomArcOfConic"
       TwinPointer="GeomArcOfConic"
       Include="Mod/Part/App/Geometry.h"
       Namespace="Part"
-      FatherInclude="Mod/Part/App/ArcPy.h"
+      FatherInclude="Mod/Part/App/TrimmedCurvePy.h"
       FatherNamespace="Part"
       Constructor="true">
     <Documentation>
diff --git a/src/Mod/Part/App/ArcPy.xml b/src/Mod/Part/App/ArcPy.xml
index 0e09e690d0..32948233c9 100644
--- a/src/Mod/Part/App/ArcPy.xml
+++ b/src/Mod/Part/App/ArcPy.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
   <PythonExport
-      Father="BoundedCurvePy"
+      Father="TrimmedCurvePy"
       Name="ArcPy"
       PythonName="Part.Arc"
       Twin="GeomTrimmedCurve"
       TwinPointer="GeomTrimmedCurve"
       Include="Mod/Part/App/Geometry.h"
       Namespace="Part"
-      FatherInclude="Mod/Part/App/BoundedCurvePy.h"
+      FatherInclude="Mod/Part/App/TrimmedCurvePy.h"
       FatherNamespace="Part"
       Constructor="true">
     <Documentation>
@@ -29,12 +29,5 @@
     const Geom_Ellipse &amp; value(void) const {return *getGeom_EllipsePtr();}
 	</ClassDeclarations>
 	-->
-    <Methode Name="setParameterRange" Const="false">
-        <Documentation>
-            <UserDocu>
-                Re-trims this curve to the provided parameter range ([Float=First, Float=Last])
-                    </UserDocu>
-                </Documentation>
-            </Methode>
   </PythonExport>
 </GenerateModel>
diff --git a/src/Mod/Part/App/ArcPyImp.cpp b/src/Mod/Part/App/ArcPyImp.cpp
index bd6f217269..47348a19e8 100644
--- a/src/Mod/Part/App/ArcPyImp.cpp
+++ b/src/Mod/Part/App/ArcPyImp.cpp
@@ -197,31 +197,6 @@ int ArcPy::PyInit(PyObject* args, PyObject* /*kwd*/)
     return -1;
 }
 
-PyObject* ArcPy::setParameterRange(PyObject * args)
-{
-    Handle(Geom_Geometry) g = getGeomTrimmedCurvePtr()->handle();
-    Handle(Geom_TrimmedCurve) c = Handle(Geom_TrimmedCurve)::DownCast(g);
-    try {
-        if (!c.IsNull()) {
-            double u,v;
-            u=c->FirstParameter();
-            v=c->LastParameter();
-            if (!PyArg_ParseTuple(args, "|dd", &u,&v))
-                return 0;
-            getGeomTrimmedCurvePtr()->setRange(u,v);
-            Py_Return;
-        }
-    }
-    catch (Base::CADKernelError& e) {
-        PyErr_SetString(PartExceptionOCCError, e.what());
-        return 0;
-    }
-
-    PyErr_SetString(PartExceptionOCCError, "Geometry is not a trimmed curve");
-    return 0;
-}
-
-
 PyObject *ArcPy::getCustomAttributes(const char* /*attr*/) const
 {
     return 0;
diff --git a/src/Mod/Part/App/BoundedCurvePyImp.cpp b/src/Mod/Part/App/BoundedCurvePyImp.cpp
index 1e0b65acb2..47e9c2b0f3 100644
--- a/src/Mod/Part/App/BoundedCurvePyImp.cpp
+++ b/src/Mod/Part/App/BoundedCurvePyImp.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (c) 2009 Werner Mayer <wmayer[at]users.sourceforge.net>     *
+ *   Copyright (c) 2019 Abdullah Tahiri <abdullah.tahiri.yo@gmail.com      *
  *                                                                         *
  *   This file is part of the FreeCAD CAx development system.              *
  *                                                                         *
diff --git a/src/Mod/Part/App/CMakeLists.txt b/src/Mod/Part/App/CMakeLists.txt
index 7d5c53a353..f2f61d05c2 100644
--- a/src/Mod/Part/App/CMakeLists.txt
+++ b/src/Mod/Part/App/CMakeLists.txt
@@ -53,6 +53,7 @@ generate_from_xml(OffsetCurvePy)
 generate_from_xml(GeometryPy)
 generate_from_xml(GeometryCurvePy)
 generate_from_xml(BoundedCurvePy)
+generate_from_xml(TrimmedCurvePy)
 generate_from_xml(GeometrySurfacePy)
 generate_from_xml(LinePy)
 generate_from_xml(LineSegmentPy)
@@ -214,6 +215,8 @@ SET(Python_SRCS
     GeometryCurvePyImp.cpp
     BoundedCurvePy.xml
     BoundedCurvePyImp.cpp
+    TrimmedCurvePy.xml
+    TrimmedCurvePyImp.cpp
     GeometrySurfacePy.xml
     GeometrySurfacePyImp.cpp
     LinePy.xml
diff --git a/src/Mod/Part/App/LineSegmentPy.xml b/src/Mod/Part/App/LineSegmentPy.xml
index f15a47a74d..4408592c6f 100644
--- a/src/Mod/Part/App/LineSegmentPy.xml
+++ b/src/Mod/Part/App/LineSegmentPy.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
   <PythonExport
-      Father="ArcPy"
+      Father="TrimmedCurvePy"
       Name="LineSegmentPy"
       PythonName="Part.LineSegment"
       Twin="GeomLineSegment"
       TwinPointer="GeomLineSegment"
       Include="Mod/Part/App/Geometry.h"
       Namespace="Part"
-      FatherInclude="Mod/Part/App/ArcPy.h"
+      FatherInclude="Mod/Part/App/TrimmedCurvePy.h"
       FatherNamespace="Part"
       Constructor="true">
     <Documentation>
diff --git a/src/Mod/Part/App/TrimmedCurvePy.xml b/src/Mod/Part/App/TrimmedCurvePy.xml
new file mode 100644
index 0000000000..5749c3ca46
--- /dev/null
+++ b/src/Mod/Part/App/TrimmedCurvePy.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
+    <PythonExport
+        Father="BoundedCurvePy"
+	Name="TrimmedCurvePy"
+        PythonName="Part.TrimmedCurve"
+        Twin="GeomTrimmedCurve"
+        TwinPointer="GeomTrimmedCurve"
+	Include="Mod/Part/App/Geometry.h"
+	Namespace="Part"
+        FatherInclude="Mod/Part/App/BoundedCurvePy.h"
+	FatherNamespace="Part"
+	Constructor="true">
+	<Documentation>
+            <Author Licence="LGPL" Name="Abdullah Tahiri" EMail="abdullah.tahiri.yo@gmail.com" />
+            <UserDocu>
+                The abstract class TrimmedCurve is the root class of all trimmed curve objects.
+            </UserDocu>
+        </Documentation>
+        <Methode Name="setParameterRange" Const="false">
+            <Documentation>
+                <UserDocu>
+                    Re-trims this curve to the provided parameter range ([Float=First, Float=Last])
+                </UserDocu>
+            </Documentation>
+        </Methode>
+        </PythonExport>
+</GenerateModel>
diff --git a/src/Mod/Part/App/TrimmedCurvePyImp.cpp b/src/Mod/Part/App/TrimmedCurvePyImp.cpp
new file mode 100644
index 0000000000..40a365905d
--- /dev/null
+++ b/src/Mod/Part/App/TrimmedCurvePyImp.cpp
@@ -0,0 +1,93 @@
+/***************************************************************************
+ *   Copyright (c) 2019 Abdullah Tahiri <abdullah.tahiri.yo@gmail.com      *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  is distributed in the hope that it will be useful,      *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#include "PreCompiled.h"
+#ifndef _PreComp_
+# include <sstream>
+#endif
+
+#include <Base/GeometryPyCXX.h>
+#include <Base/VectorPy.h>
+
+#include "OCCError.h"
+
+#include "Geometry.h"
+#include "TrimmedCurvePy.h"
+#include "TrimmedCurvePy.cpp"
+
+
+using namespace Part;
+
+// returns a string which represents the object e.g. when printed in python
+std::string TrimmedCurvePy::representation(void) const
+{
+    return "<Curve object>";
+}
+
+PyObject *TrimmedCurvePy::PyMake(struct _typeobject *, PyObject *, PyObject *)  // Python wrapper
+{
+    // never create such objects with the constructor
+    PyErr_SetString(PyExc_RuntimeError,
+                    "You cannot create an instance of the abstract class 'BoundedCurve'.");
+    return 0;
+}
+
+// constructor method
+int TrimmedCurvePy::PyInit(PyObject* /*args*/, PyObject* /*kwd*/)
+{
+    return 0;
+}
+
+PyObject* TrimmedCurvePy::setParameterRange(PyObject * args)
+{
+    Handle(Geom_Geometry) g = getGeomTrimmedCurvePtr()->handle();
+    Handle(Geom_TrimmedCurve) c = Handle(Geom_TrimmedCurve)::DownCast(g);
+    try {
+        if (!c.IsNull()) {
+            double u,v;
+            u=c->FirstParameter();
+            v=c->LastParameter();
+            if (!PyArg_ParseTuple(args, "|dd", &u,&v))
+                return 0;
+            getGeomTrimmedCurvePtr()->setRange(u,v);
+            Py_Return;
+        }
+    }
+    catch (Base::CADKernelError& e) {
+        PyErr_SetString(PartExceptionOCCError, e.what());
+        return 0;
+    }
+
+    PyErr_SetString(PartExceptionOCCError, "Geometry is not a trimmed curve");
+    return 0;
+}
+
+PyObject *TrimmedCurvePy::getCustomAttributes(const char* /*attr*/) const
+{
+    return 0;
+}
+
+int TrimmedCurvePy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
+{
+    return 0;
+}