diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemResultMechanical.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemResultMechanical.py
index ee1d88b0ed..b5cf9527c4 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemResultMechanical.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemResultMechanical.py
@@ -30,7 +30,7 @@ __url__ = "http://www.freecadweb.org"
 
 import FreeCAD
 import FreeCADGui
-import FemGui  # needed to display the icons in TreeView
+from . import ViewProviderFemConstraint
 
 # for the panel
 import femresult.resulttools as resulttools
@@ -42,70 +42,28 @@ import numpy as np
 import matplotlib.pyplot as plt
 
 
-False if FemGui.__name__ else True  # flake8, dummy FemGui usage
-
-
-class _ViewProviderFemResultMechanical:
+class _ViewProviderFemResultMechanical(ViewProviderFemConstraint.ViewProxy):
     "A View Provider for the FemResultObject Python derived FemResult class"
 
-    def __init__(self, vobj):
-        vobj.Proxy = self
-
     def getIcon(self):
         """after load from FCStd file, self.icon does not exist, return constant path instead"""
         return ":/icons/fem-post-result-show.svg"
 
-    def attach(self, vobj):
-        self.ViewObject = vobj
-        self.Object = vobj.Object
-
-    def updateData(self, obj, prop):
-        return
-
-    def onChanged(self, vobj, prop):
-        return
-
-    def doubleClicked(self, vobj):
-        guidoc = FreeCADGui.getDocument(vobj.Object.Document)
-        # check if another VP is in edit mode
-        # https://forum.freecadweb.org/viewtopic.php?t=13077#p104702
-        if not guidoc.getInEdit():
-            guidoc.setEdit(vobj.Object.Name)
-        else:
-            from PySide.QtGui import QMessageBox
-            message = "Active Task Dialog found! Please close this one before opening  a new one!"
-            QMessageBox.critical(None, "Error in tree view", message)
-            FreeCAD.Console.PrintError(message + "\n")
-        return True
-
     def setEdit(self, vobj, mode=0):
-        if hasattr(self.Object, "Mesh") and self.Object.Mesh:
-            hide_femmeshes_postpiplines()
-            # only show the FEM result mesh
-            self.Object.Mesh.ViewObject.show()
-            taskd = _TaskPanelFemResultShow(self.Object)
-            taskd.obj = vobj.Object
-            FreeCADGui.Control.showDialog(taskd)
-            return True
-        else:
-            error_message = "FEM: Result object has no appropriate FEM mesh.\n"
-            FreeCAD.Console.PrintError(error_message)
-            from PySide import QtGui
-            QtGui.QMessageBox.critical(None, "No result object", error_message)
-            return False
+        ViewProviderFemConstraint.ViewProxy.setEdit(
+            self,
+            vobj,
+            mode,
+            _TaskPanelFemResultShow,
+        )
 
+    # overwrite unsetEdit, because the mesh result obj needs to be hided on task panel exit
     def unsetEdit(self, vobj, mode=0):
         FreeCADGui.Control.closeDialog()
         # hide the mesh after result viewing is finished, but do not reset the coloring
         self.Object.Mesh.ViewObject.hide()
         return True
 
-    def __getstate__(self):
-        return None
-
-    def __setstate__(self, state):
-        return None
-
     def claimChildren(self):
         return [self.Object.Mesh]  # claimChildren needs to return a list !
 
diff --git a/src/Mod/Fem/femobjects/_FemResultMechanical.py b/src/Mod/Fem/femobjects/_FemResultMechanical.py
index ddfbc3b36d..d42e7b34a5 100644
--- a/src/Mod/Fem/femobjects/_FemResultMechanical.py
+++ b/src/Mod/Fem/femobjects/_FemResultMechanical.py
@@ -27,14 +27,17 @@ __url__ = "http://www.freecadweb.org"
 #  \ingroup FEM
 #  \brief FreeCAD DocumentObject class to hold mechanical results in FEM workbench
 
+from . import FemConstraint
 
-class _FemResultMechanical():
+
+class _FemResultMechanical(FemConstraint.Proxy):
     """The Fem::_FemResultMechanical's Proxy python type, add result specific properties
     """
+
+    Type = "Fem::FemResultMechanical"
+
     def __init__(self, obj):
-        self.Type = "Fem::FemResultMechanical"
-        self.Object = obj  # keep a ref to the DocObj for nonGui usage
-        obj.Proxy = self  # link between App::DocumentObject to this object
+        super(_FemResultMechanical, self).__init__(obj)
 
         obj.addProperty(
             "App::PropertyString",