--- FreeCAD-0.12.5284/src/Mod/Part/App/AppPartPy.cpp	2012-01-02 16:32:09.000000000 -0200
+++ FreeCAD-0.12.5284_patched/src/Mod/Part/App/AppPartPy.cpp	2012-01-02 21:36:18.000000000 -0200
@@ -492,7 +492,7 @@
             d.SetCoord(vec.x, vec.y, vec.z);
         }
         Handle_Geom_Plane aPlane = new Geom_Plane(p, d);
-        BRepBuilderAPI_MakeFace Face(aPlane, 0.0, length, 0.0, width);
+        BRepBuilderAPI_MakeFace Face(aPlane, 0.0, length, 0.0, width, Precision::Confusion());
         return new TopoShapeFacePy(new TopoShape((Face.Face()))); 
     }
     catch (Standard_DomainError) {
--- FreeCAD-0.12.5284/src/Mod/Part/App/GeometrySurfacePyImp.cpp	2012-01-02 16:32:09.000000000 -0200
+++ FreeCAD-0.12.5284_patched/src/Mod/Part/App/GeometrySurfacePyImp.cpp	2012-01-02 22:08:47.000000000 -0200
@@ -79,7 +79,7 @@
             s->Bounds(u1,u2,v1,v2);
             if (!PyArg_ParseTuple(args, "|dddd", &u1,&u2,&v1,&v2))
                 return 0;
-            BRepBuilderAPI_MakeFace mkBuilder(s, u1, u2, v1, v2);
+            BRepBuilderAPI_MakeFace mkBuilder(s, u1, u2, v1, v2, Precision::Confusion());
             TopoDS_Shape sh = mkBuilder.Shape();
             return new TopoShapeFacePy(new TopoShape(sh));
         }
--- FreeCAD-0.12.5284/src/Mod/Part/App/Geometry.cpp	2012-01-02 16:32:09.000000000 -0200
+++ FreeCAD-0.12.5284_patched/src/Mod/Part/App/Geometry.cpp	2012-01-02 22:37:08.000000000 -0200
@@ -1252,7 +1252,7 @@
     Handle_Geom_Surface s = Handle_Geom_Surface::DownCast(handle());
     Standard_Real u1,u2,v1,v2;
     s->Bounds(u1,u2,v1,v2);
-    BRepBuilderAPI_MakeFace mkBuilder(s, u1, u2, v1, v2);
+    BRepBuilderAPI_MakeFace mkBuilder(s, u1, u2, v1, v2, Precision::Confusion());
     return mkBuilder.Shape();
 }
 
--- FreeCAD-0.12.5284/src/Mod/Part/App/PrimitiveFeature.cpp	2012-01-02 16:32:09.000000000 -0200
+++ FreeCAD-0.12.5284_patched/src/Mod/Part/App/PrimitiveFeature.cpp	2012-01-02 22:40:21.000000000 -0200
@@ -191,7 +191,7 @@
     gp_Pnt pnt(0.0,0.0,0.0);
     gp_Dir dir(0.0,0.0,1.0);
     Handle_Geom_Plane aPlane = new Geom_Plane(pnt, dir);
-    BRepBuilderAPI_MakeFace mkFace(aPlane, 0.0, L, 0.0, W);
+    BRepBuilderAPI_MakeFace mkFace(aPlane, 0.0, L, 0.0, W, Precision::Confusion());
 
     const char *error=0;
     switch (mkFace.Error())
--- FreeCAD-0.12.5284/src/Mod/Part/App/TopoShape.cpp	2012-01-02 16:32:09.000000000 -0200
+++ FreeCAD-0.12.5284_patched/src/Mod/Part/App/TopoShape.cpp	2012-01-03 00:19:12.000000000 -0200
@@ -1338,7 +1338,7 @@
     double u1,u2,v1,v2;
     surf->Bounds(u1,u2,v1,v2);
 
-    BRepBuilderAPI_MakeFace mkBuilder(surf, umin, umax, v1, v2);
+    BRepBuilderAPI_MakeFace mkBuilder(surf, umin, umax, v1, v2, Precision::Confusion());
     return mkBuilder.Face();
 }
 
@@ -1391,7 +1391,7 @@
 
         Standard_Real u1,u2,v1,v2;
         mySurface->Bounds(u1,u2,v1,v2);
-        BRepBuilderAPI_MakeFace mkBuilder(mySurface, u1, u2, v1, v2);
+        BRepBuilderAPI_MakeFace mkBuilder(mySurface, u1, u2, v1, v2, Precision::Confusion());
         return mkBuilder.Shape();
     }
 
@@ -1443,7 +1443,7 @@
     mkSweep.Perform(tol, Standard_False, GeomAbs_C1, BSplCLib::MaxDegree(), 1000);
 
     const Handle_Geom_Surface& surf = mkSweep.Surface();
-    BRepBuilderAPI_MakeFace mkBuilder(surf, umin, umax, vmin, vmax);
+    BRepBuilderAPI_MakeFace mkBuilder(surf, umin, umax, vmin, vmax, Precision::Confusion());
     return mkBuilder.Face();
 }
 
--- FreeCAD-0.12.5284/src/Mod/Part/App/TopoShapeFacePyImp.cpp	2012-01-02 16:32:09.000000000 -0200
+++ FreeCAD-0.12.5284_patched/src/Mod/Part/App/TopoShapeFacePyImp.cpp	2012-01-03 00:24:40.000000000 -0200
@@ -135,7 +135,7 @@
                 return -1;
             }
 
-            BRepBuilderAPI_MakeFace mkFace(S);
+            BRepBuilderAPI_MakeFace mkFace(S, Precision::Confusion());
             if (bound) {
                 Py::List list(bound);
                 for (Py::List::iterator it = list.begin(); it != list.end(); ++it) {