diff --git a/LuaLibs/BeamExec.lua b/LuaLibs/BeamExec.lua
index aea7b9e..5d28710 100644
--- a/LuaLibs/BeamExec.lua
+++ b/LuaLibs/BeamExec.lua
@@ -995,7 +995,7 @@ local function CalculateMachinings( vProc, Part)
       elseif Proc.bSide and CurrRotation ~= 2 then
          BeamLib.RotatePart( Part, 2 - CurrRotation)
          CurrRotation = 2
-      elseif CurrRotation ~= 1 then
+      elseif CurrRotation ~= 1 and not( Proc.bSide) and not( Proc.bDown) then
          BeamLib.RotatePart( Part, 1 - CurrRotation)
          CurrRotation = 1
       end
@@ -1016,6 +1016,9 @@ local function CalculateMachinings( vProc, Part)
    -- ripristino pezzo in posizione originale
    if CurrRotation ~= 1 then
       BeamLib.RotatePart( Part, 1 - CurrRotation)
+      -- aggiorno info pezzo
+      Part.b3Raw = EgtGetRawPartBBox( Part.idRaw)
+      Part.b3Part = EgtGetBBoxGlob( EgtGetFirstNameInGroup( Part.id, 'Box') or GDB_ID.NULL, GDB_BB.STANDARD)
       CurrRotation = 1
    end
    return MACHININGS