diff --git a/NPSimulation/Detectors/Epic/Epic.cc b/NPSimulation/Detectors/Epic/Epic.cc
index 5ca337c5f7ea6f0afbafe64130caeb8e076efa3d..d47dce43611716adc7f1a6cdbe0511e5c00ada4f 100644
--- a/NPSimulation/Detectors/Epic/Epic.cc
+++ b/NPSimulation/Detectors/Epic/Epic.cc
@@ -176,7 +176,7 @@ void Epic::ConstructDetector(G4LogicalVolume* world){
 
 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 G4AssemblyVolume* Epic::BuildEpic(){
- /* 
+
   m_EpicVolume = new G4AssemblyVolume();
 
   G4RotationMatrix *Rv=new G4RotationMatrix(0,0,0);
@@ -190,17 +190,32 @@ G4AssemblyVolume* Epic::BuildEpic(){
 
 
   // --- Flange in Aluminium
-  double flange_width  = 180.*mm;
-  double flange_height =   5.*mm;
-  double flange_length = 330.*mm;
-
-*/
-
-
-
+  double flange_full_width  = 180.*mm;
+  double flange_full_height =   5.*mm;
+  double flange_full_length = 330.*mm;
+  double flange_open_width   = 150.0*mm; 
+  double flange_open_height  =   5.1*mm; 
+  double flange_open1_length =  42.0*mm; double posZ_open1 = -73.5*mm;
+  double flange_open2_length =  85.0*mm; double posZ_open2 =   0.0*mm;
+  double flange_open3_length =  74.5*mm; double posZ_open3 =  89.5*mm;
+
+  G4Box* flange_full  = new G4Box("flange_full" , 0.5*flange_full_width , 0.5*flange_full_height, 0.5*flange_full_length);
+  G4Box* flange_open1 = new G4Box("flange_open1", 0.5*flange_open_width , 0.5*flange_open_height, 0.5*flange_open1_length);
+  G4Box* flange_open2 = new G4Box("flange_open1", 0.5*flange_open_width , 0.5*flange_open_height, 0.5*flange_open2_length);
+  G4Box* flange_open3 = new G4Box("flange_open1", 0.5*flange_open_width , 0.5*flange_open_height, 0.5*flange_open3_length);
+
+  G4VSolid* flange_int1  = (G4VSolid*) new G4SubtractionSolid("flange_int1" ,flange_full,flange_open1,0,G4ThreeVector(0,0,posZ_open1));
+  G4VSolid* flange_int2  = (G4VSolid*) new G4SubtractionSolid("flange_int2" ,flange_int1,flange_open2,0,G4ThreeVector(0,0,posZ_open2));
+  G4VSolid* flange_final = (G4VSolid*) new G4SubtractionSolid("flange_final",flange_int2,flange_open3,0,G4ThreeVector(0,0,posZ_open3));
+
+  G4LogicalVolume* flange_vol = new G4LogicalVolume(flange_final, Al_material, "flange_logic", 0,0,0);
+  flange_vol->SetVisAttributes(m_VisAl);
+  Tv.setY(0);
+  m_EpicVolume->AddPlacedVolume(flange_vol, Tv, Rv);
 
 
 
+/*
 
   m_EpicVolume = new G4AssemblyVolume();
 
@@ -325,7 +340,7 @@ G4AssemblyVolume* Epic::BuildEpic(){
   m_EpicVolume->AddPlacedVolume(foil2_vol, Tv, Rv);
 
 
-
+*/