diff --git a/BtlGeom.cpp b/BtlGeom.cpp
index 0d9924a..091ce35 100644
--- a/BtlGeom.cpp
+++ b/BtlGeom.cpp
@@ -247,6 +247,17 @@ BtlGeom::ErasePart( void)
   // se non c'è il DB geometrico o il pezzo corrente, errore
    if ( m_pGDB == nullptr  ||  m_nPartId == GDB_ID_NULL)
       return false ;
+  // rimuovo eventuali riferimenti e copie nell'assemblato
+   int nAsseBaseRefId = GDB_ID_NULL ;
+   if ( m_pGDB->GetInfo( m_nPartId, GDB_SI_LIST, nAsseBaseRefId)) {
+      m_pGDB->Erase( nAsseBaseRefId) ;
+      int nInd = 1 ;
+      int nSouPartId = GDB_ID_NULL ;
+      while ( m_pGDB->GetInfo( nAsseBaseRefId + nInd, GDB_SI_SOURCE, nSouPartId)  &&  nSouPartId == m_nPartId) {
+         m_pGDB->Erase( nAsseBaseRefId + nInd) ;
+         ++ nInd ;
+      }
+   }
   // cancello il pezzo
    m_pGDB->Erase( m_nPartId) ;
   // annullo tutti gli identificativi del pezzo
diff --git a/BtlGeom.h b/BtlGeom.h
index d3a7eb3..c6f40fb 100644
--- a/BtlGeom.h
+++ b/BtlGeom.h
@@ -217,6 +217,7 @@ class BtlGeom
       ISurfTriMesh* CreateOneCurveFreeContour( const ICurveComposite* pCrvCompo) ;
       bool AdjustFreeContourCurve( ICurve* pCrv, int nSide, bool& bClosed, bool& bEndsOnCont) ;
       bool VerifyFreeContourCurveSideAng( const ICurveComposite* pCrvCompo) ;
+      bool GetFreeContourCurveSideAngles( const ICurveComposite* pCrvCompo, DBLVECTOR& vSideAng) ;
       bool CreatePolygonInBox( const Point3d& ptP, const Vector3d& vtN, int nSide, Polygon3d& Polyg,
                                double dMatMin = FACE_MIN_BACK_MAT, double dAreaMin = FACE_MIN_BACK_AREA) ;
       double GetPlaneElevation( const Plane3d& plPlane) ;
diff --git a/BtlGeomCoStru.h b/BtlGeomCoStru.h
index c432194..cb1b72d 100644
--- a/BtlGeomCoStru.h
+++ b/BtlGeomCoStru.h
@@ -67,6 +67,7 @@ static const std::string IKEY_AUXID = "AUXID" ;
 static const std::string IKEY_ORIGID = "ORIGID" ;
 static const std::string IKEY_START_FACE = "FCS" ;
 static const std::string IKEY_END_FACE = "FCE" ;
+static const std::string IKEY_SIDEANGS = "SideAngs" ;
 static const std::string IKEY_DEPTH = "DEPTH" ;
 static const std::string IKEY_POCKET = "PCKT" ;
 static const std::string IKEY_RULED = "RULED" ;
diff --git a/BtlGeomOutline.cpp b/BtlGeomOutline.cpp
index a1ab07e..79e6a29 100644
--- a/BtlGeomOutline.cpp
+++ b/BtlGeomOutline.cpp
@@ -77,8 +77,14 @@ BtlGeom::AddPartOutline( int nSide, const FCEDEQUE& dqFce, int nContType, int nC
    int nId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pStm)) ;
    if ( nId == GDB_ID_NULL)
       return false ;
+  // recupero eventuali angoli di fianco
+   DBLVECTOR vSideAng ;
+   if ( VerifyFreeContourCurveSideAng( pCrvCompo))
+      GetFreeContourCurveSideAngles( pCrvCompo, vSideAng) ;
   // inserisco la curva nel DB geometrico
    int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pCrvCompo)) ;
+   if ( nTId != GDB_ID_NULL  &&  vSideAng.size() > 0)
+      m_pGDB->SetInfo( nTId, IKEY_SIDEANGS, vSideAng) ;
   // colore
    Color cCol = m_ProcsCol ;
    m_pGDB->SetMaterial( nId, cCol) ;
@@ -152,6 +158,13 @@ BtlGeom::AddPartOutline( int nSide, int nCrvId, const DBLVECTOR& vdPar, const ST
   // verifico che sia chiuso
    if ( ! pCrvCompo->IsClosed())
       return false ;
+  // assegno eventuali angoli di fianco
+   {  DBLVECTOR vSideAng ;
+      if ( m_pGDB->GetInfo( nCrvId, IKEY_SIDEANGS, vSideAng)) {
+         for ( int i = 0 ; i < int( vSideAng.size()) ; ++ i)
+            pCrvCompo->SetCurveTempProp( i, int( vSideAng[i] * 1000)) ;
+      }
+   }
   // Lo porto nel riferimento del lato e ve lo appiattisco
    Frame3d frRef = GetSideFrame( nSide) ;
    pCrvCompo->ToLoc( frRef) ;
@@ -164,7 +177,7 @@ BtlGeom::AddPartOutline( int nSide, int nCrvId, const DBLVECTOR& vdPar, const ST
       for ( int i = 0 ; i < pCrvCompo->GetCurveCount() ; ++ i) {
          int nAng ;
          if ( pCrvCompo->GetCurveTempProp( i, nAng)  &&  abs( nAng) > 10)
-            pCrvCompo->SetCurveTempProp( i, - nAng) ;
+            pCrvCompo->SetCurveTempProp( i, -nAng) ;
       }
    }
   // Porto il percorso sul piano corretto
@@ -181,8 +194,14 @@ BtlGeom::AddPartOutline( int nSide, int nCrvId, const DBLVECTOR& vdPar, const ST
    int nId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pStm)) ;
    if ( nId == GDB_ID_NULL)
       return false ;
+  // recupero eventuali angoli di fianco
+   DBLVECTOR vSideAng ;
+   if ( VerifyFreeContourCurveSideAng( pCrvCompo))
+      GetFreeContourCurveSideAngles( pCrvCompo, vSideAng) ;
   // inserisco la curva nel DB geometrico
    int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pCrvCompo)) ;
+   if ( nTId != GDB_ID_NULL  &&  vSideAng.size() > 0)
+      m_pGDB->SetInfo( nTId, IKEY_SIDEANGS, vSideAng) ;
   // colore
    Color cCol = m_ProcsCol ;
    m_pGDB->SetMaterial( nId, cCol) ;
@@ -253,8 +272,14 @@ BtlGeom::AddPartAperture( int nSide, const FCEDEQUE& dqFce, int nContType, int n
    int nId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pStm)) ;
    if ( nId == GDB_ID_NULL)
       return false ;
+  // recupero eventuali angoli di fianco
+   DBLVECTOR vSideAng ;
+   if ( VerifyFreeContourCurveSideAng( pCrvCompo))
+      GetFreeContourCurveSideAngles( pCrvCompo, vSideAng) ;
   // inserisco la curva nel DB geometrico
    int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pCrvCompo)) ;
+   if ( nTId != GDB_ID_NULL  &&  vSideAng.size() > 0)
+      m_pGDB->SetInfo( nTId, IKEY_SIDEANGS, vSideAng) ;
   // colore
    Color cCol = m_ProcsCol ;
    m_pGDB->SetMaterial( nId, cCol) ;
@@ -312,6 +337,13 @@ BtlGeom::AddPartAperture( int nSide, int nCrvId, const DBLVECTOR& vdPar, const S
   // verifico che sia chiuso
    if ( ! pCrvCompo->IsClosed())
       return false ;
+  // assegno eventuali angoli di fianco
+   {  DBLVECTOR vSideAng ;
+      if ( m_pGDB->GetInfo( nCrvId, IKEY_SIDEANGS, vSideAng)) {
+         for ( int i = 0 ; i < int( vSideAng.size()) ; ++ i)
+            pCrvCompo->SetCurveTempProp( i, int( vSideAng[i] * 1000)) ;
+      }
+   }
   // Lo porto nel riferimento del lato e ve lo appiattisco
    Frame3d frRef = GetSideFrame( nSide) ;
    pCrvCompo->ToLoc( frRef) ;
@@ -335,8 +367,14 @@ BtlGeom::AddPartAperture( int nSide, int nCrvId, const DBLVECTOR& vdPar, const S
    int nId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pStm)) ;
    if ( nId == GDB_ID_NULL)
       return false ;
+  // recupero eventuali angoli di fianco
+   DBLVECTOR vSideAng ;
+   if ( VerifyFreeContourCurveSideAng( pCrvCompo))
+      GetFreeContourCurveSideAngles( pCrvCompo, vSideAng) ;
   // inserisco la curva nel DB geometrico
    int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pCrvCompo)) ;
+   if ( nTId != GDB_ID_NULL  &&  vSideAng.size() > 0)
+      m_pGDB->SetInfo( nTId, IKEY_SIDEANGS, vSideAng) ;
   // colore
    Color cCol = m_ProcsCol ;
    m_pGDB->SetMaterial( nId, cCol) ;
diff --git a/BtlGeomProc.cpp b/BtlGeomProc.cpp
index 185ee5d..03e577a 100644
--- a/BtlGeomProc.cpp
+++ b/BtlGeomProc.cpp
@@ -6700,6 +6700,8 @@ BtlGeom::AdjustFreeContourCurve( ICurve* pCrv, int nSide, bool& bClosed, bool& b
 bool
 BtlGeom::VerifyFreeContourCurveSideAng( const ICurveComposite* pCrvCompo)
 {
+   if ( pCrvCompo == nullptr)
+      return false ;
    bool bSideAng = false ;
    for ( int i = 0 ; i < pCrvCompo->GetCurveCount() ; ++ i) {
       int nAng ;
@@ -6711,6 +6713,20 @@ BtlGeom::VerifyFreeContourCurveSideAng( const ICurveComposite* pCrvCompo)
    return bSideAng ;
 }
 
+//----------------------------------------------------------------------------
+bool
+BtlGeom::GetFreeContourCurveSideAngles( const ICurveComposite* pCrvCompo, DBLVECTOR& vSideAng)
+{
+   if ( pCrvCompo == nullptr)
+      return false ;
+   for ( int i = 0 ; i < pCrvCompo->GetCurveCount() ; ++ i) {
+      int nAng = 0 ;
+      pCrvCompo->GetCurveTempProp( i, nAng) ;
+      vSideAng.emplace_back( nAng / 1000.) ;
+   }
+   return true ;
+}
+
 //----------------------------------------------------------------------------
 static ISurfTriMesh*
 MyCreateSubSurfTm( const ISurfTriMesh* pStm, const INTVECTOR& vTria)
@@ -7075,8 +7091,14 @@ BtlGeom::CreateFreeContours( void)
          continue ;
      // eseguo trim con le facce della trave
       TrimFlatCurveWithBox( pCrvCompo, FC_OUT_CRV_TOL) ;
+     // recupero eventuali angoli di fianco
+      DBLVECTOR vSideAng ;
+      if ( bOneCurve  &&  VerifyFreeContourCurveSideAng( pCrvCompo))
+         GetFreeContourCurveSideAngles( pCrvCompo, vSideAng) ;
      // inserisco la curva nel DB geometrico
       int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nProcsId, Release( pCrvCompo)) ;
+      if ( nTId != GDB_ID_NULL  &&  vSideAng.size() > 0)
+         m_pGDB->SetInfo( nTId, IKEY_SIDEANGS, vSideAng) ;
      // inserisco eventuale seconda curva
       int nT2Id = GDB_ID_NULL ;
       if ( ! bOneCurve) {
@@ -7177,6 +7199,13 @@ BtlGeom::AddOneFreeContour( int nGroup, int nProc, int nSide, const string& sDes
    else if ( nCrvCnt == 1) {
      // se previsto, imposto spessore
       pCrvCompo->SetThickness( -dDepth) ;
+     // assegno eventuali angoli di fianco
+      {  DBLVECTOR vSideAng ;
+         if ( m_pGDB->GetInfo( nCrvId, IKEY_SIDEANGS, vSideAng)) {
+            for ( int i = 0 ; i < int( vSideAng.size()) ; ++ i)
+               pCrvCompo->SetCurveTempProp( i, int( vSideAng[i] * 1000)) ;
+         }
+      }
      // porto la curva nel riferimento della faccia
       Frame3d frSide = GetSideFrame( nSide) ;
       pCrvCompo->ToLoc( frSide) ;
@@ -7334,8 +7363,14 @@ BtlGeom::AddOneFreeContour( int nGroup, int nProc, int nSide, const string& sDes
       return false ;
   // eseguo trim con le facce della trave
    TrimFlatCurveWithBox( pCrvCompo, FC_OUT_CRV_TOL) ;
+  // recupero eventuali angoli di fianco
+   DBLVECTOR vSideAng ;
+   if ( nCrvCnt == 1  &&  VerifyFreeContourCurveSideAng( pCrvCompo))
+      GetFreeContourCurveSideAngles( pCrvCompo, vSideAng) ;
   // inserisco la curva nel DB geometrico
    int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nProcsId, Release( pCrvCompo)) ;
+   if ( nTId != GDB_ID_NULL  &&  vSideAng.size() > 0)
+      m_pGDB->SetInfo( nTId, IKEY_SIDEANGS, vSideAng) ;
   // inserisco eventuale seconda curva
    int nT2Id = GDB_ID_NULL ;
    if ( nCrvCnt == 2)
diff --git a/EgtExchange.rc b/EgtExchange.rc
index 6268340..b32ac23 100644
Binary files a/EgtExchange.rc and b/EgtExchange.rc differ