diff --git a/models/box.obj b/models/box.obj
index 4c4bd71..92ce3c6 100644
--- a/models/box.obj
+++ b/models/box.obj
@@ -1,33 +1,443 @@
 # Created by FreeCAD <http://www.freecadweb.org>
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diff --git a/models/box.step b/models/box.step
index a9eaf98..43bf584 100644
--- a/models/box.step
+++ b/models/box.step
@@ -1,7 +1,7 @@
 ISO-10303-21;
 HEADER;
 FILE_DESCRIPTION(('FreeCAD Model'),'2;1');
-FILE_NAME('Open CASCADE Shape Model','2023-05-09T04:58:44',(''),(''),
+FILE_NAME('Open CASCADE Shape Model','2023-05-09T05:11:25',(''),(''),
   'Open CASCADE STEP processor 7.6','FreeCAD','Unknown');
 FILE_SCHEMA(('AUTOMOTIVE_DESIGN { 1 0 10303 214 1 1 1 1 }'));
 ENDSEC;
@@ -17,13 +17,14 @@ DATA;
 #7 = PRODUCT('Body','Body','',(#8));
 #8 = PRODUCT_CONTEXT('',#2,'mechanical');
 #9 = PRODUCT_DEFINITION_CONTEXT('part definition',#2,'design');
-#10 = ADVANCED_BREP_SHAPE_REPRESENTATION('',(#11,#15),#345);
+#10 = ADVANCED_BREP_SHAPE_REPRESENTATION('',(#11,#15),#690);
 #11 = AXIS2_PLACEMENT_3D('',#12,#13,#14);
 #12 = CARTESIAN_POINT('',(0.,0.,0.));
 #13 = DIRECTION('',(0.,0.,1.));
 #14 = DIRECTION('',(1.,0.,-0.));
 #15 = MANIFOLD_SOLID_BREP('',#16);
-#16 = CLOSED_SHELL('',(#17,#137,#213,#284,#331,#338));
+#16 = CLOSED_SHELL('',(#17,#137,#218,#299,#379,#428,#460,#509,#593,#620,
+    #624,#631,#686));
 #17 = ADVANCED_FACE('',(#18),#32,.F.);
 #18 = FACE_BOUND('',#19,.F.);
 #19 = EDGE_LOOP('',(#20,#55,#83,#111));
@@ -32,7 +33,7 @@ DATA;
 #22 = VERTEX_POINT('',#23);
 #23 = CARTESIAN_POINT('',(0.,0.,0.));
 #24 = VERTEX_POINT('',#25);
-#25 = CARTESIAN_POINT('',(0.,0.,10.));
+#25 = CARTESIAN_POINT('',(0.,3.330669073875E-16,9.));
 #26 = SURFACE_CURVE('',#27,(#31,#43),.PCURVE_S1.);
 #27 = LINE('',#28,#29);
 #28 = CARTESIAN_POINT('',(0.,0.,0.));
@@ -69,16 +70,16 @@ PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
 #55 = ORIENTED_EDGE('',*,*,#56,.T.);
 #56 = EDGE_CURVE('',#24,#57,#59,.T.);
 #57 = VERTEX_POINT('',#58);
-#58 = CARTESIAN_POINT('',(10.,0.,10.));
+#58 = CARTESIAN_POINT('',(10.,3.330669073875E-16,9.));
 #59 = SURFACE_CURVE('',#60,(#64,#71),.PCURVE_S1.);
 #60 = LINE('',#61,#62);
-#61 = CARTESIAN_POINT('',(0.,0.,10.));
+#61 = CARTESIAN_POINT('',(0.,0.,9.));
 #62 = VECTOR('',#63,1.);
 #63 = DIRECTION('',(1.,0.,0.));
 #64 = PCURVE('',#32,#65);
 #65 = DEFINITIONAL_REPRESENTATION('',(#66),#70);
 #66 = LINE('',#67,#68);
-#67 = CARTESIAN_POINT('',(0.,-10.));
+#67 = CARTESIAN_POINT('',(0.,-9.));
 #68 = VECTOR('',#69,1.);
 #69 = DIRECTION('',(1.,0.));
 #70 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
@@ -87,14 +88,14 @@ PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
 #71 = PCURVE('',#72,#77);
 #72 = PLANE('',#73);
 #73 = AXIS2_PLACEMENT_3D('',#74,#75,#76);
-#74 = CARTESIAN_POINT('',(5.,5.,10.));
-#75 = DIRECTION('',(0.,0.,1.));
-#76 = DIRECTION('',(1.,0.,0.));
+#74 = CARTESIAN_POINT('',(0.,0.5,9.5));
+#75 = DIRECTION('',(0.,0.707106781187,-0.707106781187));
+#76 = DIRECTION('',(-1.,-0.,-0.));
 #77 = DEFINITIONAL_REPRESENTATION('',(#78),#82);
 #78 = LINE('',#79,#80);
-#79 = CARTESIAN_POINT('',(-5.,-5.));
+#79 = CARTESIAN_POINT('',(-0.,-0.707106781187));
 #80 = VECTOR('',#81,1.);
-#81 = DIRECTION('',(1.,0.));
+#81 = DIRECTION('',(-1.,0.));
 #82 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
 PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
   ) );
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diff --git a/models/box.stl b/models/box.stl
index b71bb39..c54ac17 100644
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