diff --git a/Beam/BeamData.lua b/Beam/BeamData.lua
index d5e734a..dadaa7b 100644
--- a/Beam/BeamData.lua
+++ b/Beam/BeamData.lua
@@ -184,6 +184,67 @@ local function GetChainSawInitAngs( vtN, vtO, nInd)
 end
 BeamData.GetChainSawInitAngs = GetChainSawInitAngs
 
+---------------------------------------------------------------------
+local function GetMinNzTopHead( vtNFace)
+   if vtNFace and abs( vtNFace:getY()) > 0.8659 then
+      return -0.2499
+   else
+      return sin( -45)
+   end
+end
+
+---------------------------------------------------------------------
+local function GetMinNzDownUp( b3Raw, vtNFace, vtToolDirection)
+   if vtToolDirection and vtToolDirection:getZ() > 0.35 then
+      -- N_HorAng < 15° or N_HorAng > 55°
+      if vtNFace and ( abs( vtNFace:getY()) < 0.259 or abs( vtNFace:getY()) > 0.819) then
+         return -0.708
+      -- N_HorAng > 50°
+      elseif vtNFace and abs( vtNFace:getY()) > 0.766 then
+         return -0.383
+      else
+         return EgtIf( b3Raw:getDimZ() < BeamData.MIN_DIM_HBEAM, -0.609, -0.383)
+      end
+   else
+      -- N_HorAng > 60°
+      if vtNFace and ( abs( vtNFace:getY()) > 0.866) then
+         return -0.708
+      else
+         if b3Raw:getDimZ() < 120 then
+            return -0.708
+         elseif b3Raw:getDimZ() < 200 then
+            -- N_HorAng < 15° or N_HorAng > 55°
+            if vtNFace and ( abs( vtNFace:getY()) < 0.259 or abs( vtNFace:getY()) > 0.819) then
+               return -0.5
+            else
+               return -0.383
+            end
+         elseif b3Raw:getDimZ() < 300 then
+            -- N_HorAng < 10°
+            if vtNFace and ( abs( vtNFace:getY()) < 0.174) then
+               return -0.5
+            else
+               return -0.259
+            end
+         elseif b3Raw:getDimZ() < BeamData.MIN_DIM_HBEAM then
+            -- N_HorAng < 10°
+            if vtNFace and ( abs( vtNFace:getY()) < 0.174) then
+               return -0.342
+            else
+               return -0.259
+            end
+         else
+            -- N_HorAng < 10°
+            if vtNFace and ( abs( vtNFace:getY()) < 0.174) then
+               return -0.383
+            else
+               return -0.174
+            end
+         end
+      end
+   end
+end
+
 ---------------------------------------------------------------------
 local function GetSetupInfo( sHead)
    local SetupInfo = {}
@@ -197,23 +258,24 @@ local function GetSetupInfo( sHead)
    if sHead == 'H1' then
       SetupInfo.HeadType = { bTop = true, bBottom = false}
       SetupInfo.PreferredSide = {}
-      SetupInfo.dMinNz = sin( -45)
+      SetupInfo.GetMinNz = GetMinNzTopHead
    -- lama su testa 5 assi da sopra
    elseif sHead == 'H2' then
       SetupInfo.HeadType = { bTop = true, bBottom = false}
       SetupInfo.PreferredSide = {}
-      SetupInfo.dMinNz = sin( -45)
+      SetupInfo.GetMinNz = GetMinNzTopHead
+      SetupInfo.GetMinNzDownUp = GetMinNzDownUp
    -- motosega
    elseif sHead == 'H3' then
       SetupInfo.HeadType = { bTop = true, bBottom = false}
       SetupInfo.PreferredSide = {}
-      SetupInfo.dMinNz = 0
+      SetupInfo.GetMinNz = function() return 0 end
    -- rinvio angolare 90° (considerato come fosse una testa da sotto)
    elseif sHead == 'H5' then
       SetupInfo.bToolOnAggregate = true
       SetupInfo.HeadType = { bTop = false, bBottom = true}
       SetupInfo.PreferredSide = {}
-      SetupInfo.dMaxNz = 0
+      SetupInfo.GetMaxNz = function() return 0 end
    end
 
    return SetupInfo