diff --git a/LuaLibs/CalcToolPath.lua b/LuaLibs/CalcToolPath.lua
index c40caa3..294bdee 100644
--- a/LuaLibs/CalcToolPath.lua
+++ b/LuaLibs/CalcToolPath.lua
@@ -955,6 +955,17 @@ local function SpiralVase( vLayIds, dCorrZ, LayerParams)
    
    local nOldId
    local bFirst = true
+   local nSlicingType = EgtGetInfo( s_nPartId, KEY_SLICING_TYPE, 'i')
+   
+   -- copio ultimo layer
+   if nSlicingType ~= SLICING_TYPE.DEG45 then
+      local nNewLay = EgtCopyGlob( vLayIds[#vLayIds], vLayIds[#vLayIds], GDB_IN.AFTER)
+      table.insert( vLayIds, nNewLay)
+      local sOldIdx = string.sub( EgtGetName( vLayIds[#vLayIds]), 6)
+      local nNewIdx = tonumber( sOldIdx) + 1
+      EgtSetName( nNewLay, SLICE_LAYER .. EgtNumToString( nNewIdx))
+      EgtMove( nNewLay, LayerParams.dLayHeight * LayerParams.vtSlicing, GDB_RT.GLOB)
+   end
     
    -- ciclo sui layer
    for nIdx = 1, #vLayIds do
@@ -986,16 +997,16 @@ local function SpiralVase( vLayIds, dCorrZ, LayerParams)
          end
 
          -- creo il percorso di lavoro :
-         -- copio le curve, le ordino, le oriento e le muovo in Z
          local nEntId = EgtGetFirstInGroup( nPathGrpId)
          while nEntId do
             local nNewEntId = EgtCopyGlob( nEntId, nTpathGrpId, GDB_IN.LAST_SON)
-            
+               
             -- correggo posizione in Z ( per essere sicuri di appoggiare sul piano)
             EgtMove( nNewEntId, dCorrZ * Z_AX(), GDB_RT.GLOB)
-            -- mi sposto dell'altezza layer
-            EgtMove( nNewEntId, LayerParams.dLayHeight * LayerParams.vtSlicing, GDB_RT.GLOB)
-            
+            if nSlicingType == SLICING_TYPE.DEG45 then
+               -- eventuale spostamento dell'altezza layer
+               EgtMove( nNewEntId, LayerParams.dLayHeight * LayerParams.vtSlicing, GDB_RT.GLOB)
+            end
             EgtModifyCurveExtrusion( nNewEntId, LayerParams.vtSlicing, GDB_RT.GLOB)
             -- eventuale inversione
             if LayerParams.bInvert then
@@ -1004,32 +1015,31 @@ local function SpiralVase( vLayIds, dCorrZ, LayerParams)
             end
             EgtSetColor( nNewEntId, EgtStdColor('GRAY'))
             
-            -- se primo layer devo farne copia
+            -- se primo layer 
             if bFirst and nNewEntId then
-               local nFirstCrv = EgtCopyGlob( nNewEntId, nTpathGrpId, GDB_IN.FIRST_SON)
-               EgtModifyCurveExtrusion( nFirstCrv, LayerParams.vtSlicing, GDB_RT.GLOB)
+               -- mi sposto dell'altezza layer
+               EgtMove( nNewEntId, LayerParams.dLayHeight * LayerParams.vtSlicing, GDB_RT.GLOB)
                -- eventuale lead in
                if LayerParams.nLeadInType ~= LEAD_TYPE.NONE then
-                  EgtTrimCurveStartAtLen( nFirstCrv, LayerParams.dOffsetLP)
-                  AddLeadIn( nFirstCrv, LayerParams, nTpathGrpId)
+                  EgtTrimCurveStartAtLen( nNewEntId, LayerParams.dOffsetLP)
+                  AddLeadIn( nNewEntId, LayerParams, nTpathGrpId)
                end
-               nOldId = nNewEntId
                bFirst = false
-            end
-            
-            -- modifico lo start point per collegarlo alla curva precedente
-            local ptOld = EgtEP( nOldId)
-            if dist( EgtSP( nNewEntId), ptOld) < LayerParams.dStrand + 10 then
-               EgtChangeClosedCurveStartPoint( nNewEntId, ptOld)
-               EgtModifyCurveStartPoint( nNewEntId, ptOld)
             else
-               EgtOutLog( 'Warning : in spiral vase mode no link betweeen toolpaths (layer '..tostring( nIdx)..') - CalcToolPath')
-               -- aggiungo uscita, coasting e wipe sulla curva precedente
-               AddSpiralVaseLeadOut( nOldId, LayerParams)
+               -- modifico lo start point per collegarlo alla curva precedente
+               local ptOld = EgtEP( nOldId, GDB_ID.ROOT)
+               if dist( EgtSP( nNewEntId, GDB_ID.ROOT), ptOld) < LayerParams.dStrand + 10 then
+                  EgtChangeClosedCurveStartPoint( nNewEntId, ptOld, GDB_RT.GLOB)
+                  EgtModifyCurveStartPoint( nNewEntId, ptOld, GDB_RT.GLOB)
+               else
+                  EgtOutLog( 'Warning : in spiral vase mode no link betweeen toolpaths (layer '..tostring( nIdx)..') - CalcToolPath')
+                  -- aggiungo uscita, coasting e wipe sulla curva precedente
+                  AddSpiralVaseLeadOut( nOldId, LayerParams)
+               end
+               EgtSpiralizeCurve( nNewEntId, LayerParams.dLayHeight)
             end
             
             nOldId = nNewEntId
-            EgtSpiralizeCurve( nNewEntId, LayerParams.dLayHeight)
             nEntId = EgtGetNext( nEntId)
          end
       end
@@ -1042,7 +1052,7 @@ local function SpiralVase( vLayIds, dCorrZ, LayerParams)
    
    -- aggiungo uscita, coasting e wipe su ultima curva
    AddSpiralVaseLeadOut( nOldId, LayerParams)
-
+   
 end
 
 ---------------------------------------------------------------------