diff --git a/LuaLibs/ProcessCut.lua b/LuaLibs/ProcessCut.lua
index 1684f3a..fd7c70c 100644
--- a/LuaLibs/ProcessCut.lua
+++ b/LuaLibs/ProcessCut.lua
@@ -522,8 +522,10 @@ local function MakeFromTop( sCutting, Proc, nPhase, nRawId, nPartId, dOvmHead, b
             vtOrthoO = -X_AX()
          end
       else
-         if vtN:getZ() < dVzLimDwnUp or Proc.Head or Proc.Tail then
+         if vtN:getZ() < dVzLimDwnUp or Proc.Tail or ( Proc.Head and abs( vtN:getY()) > 0.01) then
             vtOrthoO = EgtIf( vtN:getY() > -0.02, -Y_AX(), Y_AX())
+         elseif Proc.Head then
+            vtOrthoO = EgtIf( vtN:getY() > -0.02, Y_AX(), -Y_AX())
          else
             vtOrthoO = EgtIf( vtN:getY() > 0.02, Y_AX(), -Y_AX())
          end
diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index e5f013f..0d9ba6d 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -4942,7 +4942,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
                   end
                elseif Proc.Fct == 3 and bIsL then
                   -- per rifinire gli angoli premio utensile diam 25 o da BD
-                  dDiam = min( ( 2 * dDiam) + 0.1, BD.MAXDIAM_POCK_CORNER)
+                  dDiam = min( ( 2 * dDiam) + 10 * GEO.EPS_SMALL, BD.MAXDIAM_POCK_CORNER)
                else
                   dDiam = 2 * dDiam
                end