diff --git a/LuaLibs/WProcessLapJoint.lua b/LuaLibs/WProcessLapJoint.lua
index e94e1d5..30870b4 100644
--- a/LuaLibs/WProcessLapJoint.lua
+++ b/LuaLibs/WProcessLapJoint.lua
@@ -1351,7 +1351,7 @@ local function MakeByMill( Proc, nFacet, nOthFac, nRawId, b3Raw, dSideDist)
    if not sMilling then
       local sErr = 'Error : Side not found in library'
       EgtOutLog( sErr)
-      return false, sErr
+      return false, sErr, true
    end
    -- recupero i dati dell'utensile
    local dMillDiam = 20
@@ -2755,7 +2755,10 @@ local function MakeTwoFaces( Proc, nRawId, b3Raw)
             bLikeAsMakeFirstGroove = false
             return MakeSideGrooveByMill( Proc, nFacetVert, nRawId, b3Raw, EgtIf( bEnableMillOnSide and dMaxDepthOnSide, sMillOnSide, nil), dMaxDepthOnSide, bMakeFirstGroove, bMachFromDn, dAng, bLikeAsMakeFirstGroove, nil, nil, bDoubleMillOnSide)
          else
-            local bOk, sErr = MakeByMill( Proc, nFacet, 1 - nFacet, nRawId, b3Raw, dSideDist)
+            local bOk, sErr, bSideMachiningNotFound = MakeByMill( Proc, nFacet, 1 - nFacet, nRawId, b3Raw, dSideDist)
+            if not bOk and bSideMachiningNotFound then
+               bOk, sErr = MakeByPocketing( Proc, nFacet, nRawId, b3Raw)
+            end
             -- se angolo ottuso riprendo il lato quasi verticale
             if bOk and dAng and dAng > -90 + 10 * GEO.EPS_SMALL then
                local bOk2, sErr2 = MakeSideGrooveByMill( Proc, nFacetVert, nRawId, b3Raw, EgtIf( bEnableMillOnSide and dMaxDepthOnSide, sMillOnSide, nil), dMaxDepthOnSide, bMakeFirstGroove, bMachFromDn, dAng, false, nil, true)