diff --git a/EInAPI.h b/EInAPI.h
index 7af8c10..2085b71 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -577,6 +577,13 @@ EIN_EXPORT BOOL __stdcall EgtLineSurfTmInters( const double ptP[3], const double
 EIN_EXPORT int  __stdcall EgtSurfTmSurfTmInters( int nId1, int nId2, int nDestGrpId,
                                                  int* pnPntCount, int* pnCrvCount, int* pnSrfCount) ;
 
+// Maximum Filler
+EIN_EXPORT BOOL __stdcall EgtMaxFillerStart( void) ;
+EIN_EXPORT BOOL __stdcall EgtMaxFillerAddPart( int nPartId, double dLen, double dDispLen, int nCount) ;
+EIN_EXPORT BOOL __stdcall EgtMaxFillerCompute( double dLenToFill, double dStartGap, double dMidGap, double dEndGap, int nSortType) ;
+EIN_EXPORT BOOL __stdcall EgtMaxFillerGetResults( int* pnFilledParts, int* pnDiffParts, double* pdTotFillRatio) ;
+EIN_EXPORT BOOL __stdcall EgtMaxFillerGetOneResult( int nInd, int* pnPartId, int* pnCount) ;
+
 // Nesting
 EIN_EXPORT BOOL __stdcall EgtCreateAdjustFlatParts( int nType, double dToler) ;
 EIN_EXPORT BOOL __stdcall EgtCreateFlatParts( int nType, double dToler) ;
diff --git a/ENkMaximumFiller.h b/ENkMaximumFiller.h
new file mode 100644
index 0000000..4144d3b
--- /dev/null
+++ b/ENkMaximumFiller.h
@@ -0,0 +1,39 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2020-2020
+//----------------------------------------------------------------------------
+// File : MaximumFiller.h      Data : 05.11.20        Versione : 2.2k1
+// Contenuto : Classe per il calcolo del massimo riempimento (nesting 1D).
+//
+//
+//
+// Modifiche : 05.11.20 DS Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+//----------------------- Macro per import/export ----------------------------
+#undef ENK_EXPORT
+#if defined( I_AM_ENK)            // da definirsi solo nella DLL
+   #define ENK_EXPORT __declspec( dllexport)
+#else
+   #define ENK_EXPORT __declspec( dllimport)
+#endif
+
+
+//----------------------------------------------------------------------------
+class __declspec( novtable) IMaximumFiller
+{
+   public :
+      virtual ~IMaximumFiller( void) {} 
+      virtual bool Clear( void) = 0 ;
+      virtual bool AddPart( int nPartId, double dLen) = 0 ;
+      virtual bool AddPart( int nPartId, double dLen, double dDispLen, int nCount) = 0 ;
+      virtual bool Compute( double dLenToFill, double dStartGap, double dMidGap, double dEndGap, int nSortType = 0) = 0 ;
+      virtual bool GetResults( int& nFilledParts, int& nDiffParts, double& dTotFillRatio) const = 0 ;
+      virtual bool GetOneResult( int nInd, int& nPartId, int& nCount) const = 0 ;
+} ;
+
+//-----------------------------------------------------------------------------
+ENK_EXPORT IMaximumFiller* CreateMaximumFiller( void) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 5bb1ea4..e0c0e55 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -693,6 +693,14 @@ EXE_EXPORT int  ExeCDeBoxSolid( const Frame3d& frBox, const Vector3d& vtDiag, in
 EXE_EXPORT int  ExeCDeCylSolid( const Frame3d& frCyl, double dH, double dR, int nSolidId, double dSafeDist, int nRefType) ;
 EXE_EXPORT int  ExeCDeSpheSolid( const Point3d& ptCen, double dR, int nSolidId, double dSafeDist, int nRefType) ;
 
+// Maximum Filler
+EXE_EXPORT bool ExeMaxFillerStart( void) ;
+EXE_EXPORT bool ExeMaxFillerAddPart( int nPartId, double dLen) ;
+EXE_EXPORT bool ExeMaxFillerAddPart( int nPartId, double dLen, double dDispLen, int nCount) ;
+EXE_EXPORT bool ExeMaxFillerCompute( double dLenToFill, double dStartGap, double dMidGap, double dEndGap, int nSortType) ;
+EXE_EXPORT bool ExeMaxFillerGetResults( int& nFilledParts, int& nDiffParts, double& dTotFillRatio) ;
+EXE_EXPORT bool ExeMaxFillerGetOneResult( int nInd, int& nPartId, int& nCount) ;
+
 // Nesting
 // CreateFlatParts
 EXE_EXPORT bool ExeCreateAdjustFlatParts( int nType, double dToler) ;