diff --git a/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.fcstd b/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.fcstd
new file mode 100644
index 00000000..1e3ac010
Binary files /dev/null and b/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.fcstd differ
diff --git a/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.stl b/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.stl
new file mode 100644
index 00000000..bbe7f1ff
Binary files /dev/null and b/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.stl differ
diff --git a/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.stp b/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.stp
new file mode 100644
index 00000000..f6715faf
--- /dev/null
+++ b/Mechanical Parts/Bearings/F623ZZ_Ball_Bearing.stp	
@@ -0,0 +1,924 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION(('FreeCAD Model'),'2;1');
+FILE_NAME(
+'/Users/diegotrap/repos/FreeCAD-library/Mechanical 
+Parts/Bearings/F623ZZ_Ball_Bearing.step','2018-02-11T13:52:26',('Author'
+    ),(''),'Open CASCADE STEP processor 6.8','FreeCAD','Unknown');
+FILE_SCHEMA(('AUTOMOTIVE_DESIGN_CC2 { 1 2 10303 214 -1 1 5 4 }'));
+ENDSEC;
+DATA;
+#1 = APPLICATION_PROTOCOL_DEFINITION('committee draft',
+  'automotive_design',1997,#2);
+#2 = APPLICATION_CONTEXT(
+  'core data for automotive mechanical design processes');
+#3 = SHAPE_DEFINITION_REPRESENTATION(#4,#10);
+#4 = PRODUCT_DEFINITION_SHAPE('','',#5);
+#5 = PRODUCT_DEFINITION('design','',#6,#9);
+#6 = PRODUCT_DEFINITION_FORMATION('','',#7);
+#7 = PRODUCT('ASSEMBLY','ASSEMBLY','',(#8));
+#8 = MECHANICAL_CONTEXT('',#2,'mechanical');
+#9 = PRODUCT_DEFINITION_CONTEXT('part definition',#2,'design');
+#10 = SHAPE_REPRESENTATION('',(#11,#15),#19);
+#11 = AXIS2_PLACEMENT_3D('',#12,#13,#14);
+#12 = CARTESIAN_POINT('',(0.,0.,0.));
+#13 = DIRECTION('',(0.,0.,1.));
+#14 = DIRECTION('',(1.,0.,-0.));
+#15 = AXIS2_PLACEMENT_3D('',#16,#17,#18);
+#16 = CARTESIAN_POINT('',(0.,0.,0.));
+#17 = DIRECTION('',(0.,-1.,2.22044604925E-16));
+#18 = DIRECTION('',(1.,0.,0.));
+#19 = ( GEOMETRIC_REPRESENTATION_CONTEXT(3) 
+GLOBAL_UNCERTAINTY_ASSIGNED_CONTEXT((#23)) GLOBAL_UNIT_ASSIGNED_CONTEXT(
+(#20,#21,#22)) REPRESENTATION_CONTEXT('Context #1',
+  '3D Context with UNIT and UNCERTAINTY') );
+#20 = ( LENGTH_UNIT() NAMED_UNIT(*) SI_UNIT(.MILLI.,.METRE.) );
+#21 = ( NAMED_UNIT(*) PLANE_ANGLE_UNIT() SI_UNIT($,.RADIAN.) );
+#22 = ( NAMED_UNIT(*) SI_UNIT($,.STERADIAN.) SOLID_ANGLE_UNIT() );
+#23 = UNCERTAINTY_MEASURE_WITH_UNIT(LENGTH_MEASURE(1.E-07),#20,
+  'distance_accuracy_value','confusion accuracy');
+#24 = PRODUCT_TYPE('part',$,(#7));
+#25 = ADVANCED_BREP_SHAPE_REPRESENTATION('',(#11,#26),#674);
+#26 = MANIFOLD_SOLID_BREP('',#27);
+#27 = CLOSED_SHELL('',(#28,#100,#155,#210,#245,#280,#335,#394,#429,#464,
+    #523,#578,#617,#647));
+#28 = ADVANCED_FACE('',(#29,#65),#42,.F.);
+#29 = FACE_BOUND('',#30,.T.);
+#30 = EDGE_LOOP('',(#31));
+#31 = ORIENTED_EDGE('',*,*,#32,.F.);
+#32 = EDGE_CURVE('',#33,#33,#35,.T.);
+#33 = VERTEX_POINT('',#34);
+#34 = CARTESIAN_POINT('',(5.,4.,-5.329070518201E-15));
+#35 = SURFACE_CURVE('',#36,(#41,#53),.PCURVE_S1.);
+#36 = CIRCLE('',#37,5.);
+#37 = AXIS2_PLACEMENT_3D('',#38,#39,#40);
+#38 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#39 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#40 = DIRECTION('',(1.,-1.972152263053E-31,-1.7763568394E-16));
+#41 = PCURVE('',#42,#47);
+#42 = PLANE('',#43);
+#43 = AXIS2_PLACEMENT_3D('',#44,#45,#46);
+#44 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#45 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#46 = DIRECTION('',(1.,-6.573840876842E-31,-5.921189464668E-16));
+#47 = DEFINITIONAL_REPRESENTATION('',(#48),#52);
+#48 = CIRCLE('',#49,5.);
+#49 = AXIS2_PLACEMENT_2D('',#50,#51);
+#50 = CARTESIAN_POINT('',(0.,0.));
+#51 = DIRECTION('',(1.,4.144832625267E-16));
+#52 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#53 = PCURVE('',#54,#59);
+#54 = CYLINDRICAL_SURFACE('',#55,5.);
+#55 = AXIS2_PLACEMENT_3D('',#56,#57,#58);
+#56 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#57 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#58 = DIRECTION('',(1.,-1.972152263053E-31,-1.7763568394E-16));
+#59 = DEFINITIONAL_REPRESENTATION('',(#60),#64);
+#60 = LINE('',#61,#62);
+#61 = CARTESIAN_POINT('',(0.,0.));
+#62 = VECTOR('',#63,1.);
+#63 = DIRECTION('',(1.,0.));
+#64 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#65 = FACE_BOUND('',#66,.T.);
+#66 = EDGE_LOOP('',(#67));
+#67 = ORIENTED_EDGE('',*,*,#68,.F.);
+#68 = EDGE_CURVE('',#69,#69,#71,.T.);
+#69 = VERTEX_POINT('',#70);
+#70 = CARTESIAN_POINT('',(-4.,4.,-4.440892098501E-15));
+#71 = SURFACE_CURVE('',#72,(#77,#88),.PCURVE_S1.);
+#72 = CIRCLE('',#73,4.);
+#73 = AXIS2_PLACEMENT_3D('',#74,#75,#76);
+#74 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#75 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#76 = DIRECTION('',(-1.,0.,0.));
+#77 = PCURVE('',#42,#78);
+#78 = DEFINITIONAL_REPRESENTATION('',(#79),#87);
+#79 = ( BOUNDED_CURVE() B_SPLINE_CURVE(2,(#80,#81,#82,#83,#84,#85,#86),
+.UNSPECIFIED.,.F.,.F.) B_SPLINE_CURVE_WITH_KNOTS((1,2,2,2,2,1),(
+    -2.094395102393,0.,2.094395102393,4.188790204786,6.28318530718,
+8.377580409573),.UNSPECIFIED.) CURVE() GEOMETRIC_REPRESENTATION_ITEM() 
+RATIONAL_B_SPLINE_CURVE((1.,0.5,1.,0.5,1.,0.5,1.)) REPRESENTATION_ITEM(
+  '') );
+#80 = CARTESIAN_POINT('',(-4.,-2.368475785867E-15));
+#81 = CARTESIAN_POINT('',(-4.,6.928203230276));
+#82 = CARTESIAN_POINT('',(2.,3.464101615138));
+#83 = CARTESIAN_POINT('',(8.,5.716669011052E-15));
+#84 = CARTESIAN_POINT('',(2.,-3.464101615138));
+#85 = CARTESIAN_POINT('',(-4.,-6.928203230276));
+#86 = CARTESIAN_POINT('',(-4.,-2.368475785867E-15));
+#87 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#88 = PCURVE('',#89,#94);
+#89 = CYLINDRICAL_SURFACE('',#90,4.);
+#90 = AXIS2_PLACEMENT_3D('',#91,#92,#93);
+#91 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#92 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#93 = DIRECTION('',(-1.,0.,0.));
+#94 = DEFINITIONAL_REPRESENTATION('',(#95),#99);
+#95 = LINE('',#96,#97);
+#96 = CARTESIAN_POINT('',(0.,0.));
+#97 = VECTOR('',#98,1.);
+#98 = DIRECTION('',(1.,0.));
+#99 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#100 = ADVANCED_FACE('',(#101),#54,.T.);
+#101 = FACE_BOUND('',#102,.T.);
+#102 = EDGE_LOOP('',(#103,#104,#127,#154));
+#103 = ORIENTED_EDGE('',*,*,#32,.T.);
+#104 = ORIENTED_EDGE('',*,*,#105,.T.);
+#105 = EDGE_CURVE('',#33,#106,#108,.T.);
+#106 = VERTEX_POINT('',#107);
+#107 = CARTESIAN_POINT('',(5.,1.,-1.33226762955E-15));
+#108 = SEAM_CURVE('',#109,(#113,#120),.PCURVE_S1.);
+#109 = LINE('',#110,#111);
+#110 = CARTESIAN_POINT('',(5.,4.,-5.329070518201E-15));
+#111 = VECTOR('',#112,1.);
+#112 = DIRECTION('',(0.,-1.,1.33226762955E-15));
+#113 = PCURVE('',#54,#114);
+#114 = DEFINITIONAL_REPRESENTATION('',(#115),#119);
+#115 = LINE('',#116,#117);
+#116 = CARTESIAN_POINT('',(0.,0.));
+#117 = VECTOR('',#118,1.);
+#118 = DIRECTION('',(0.,1.));
+#119 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#120 = PCURVE('',#54,#121);
+#121 = DEFINITIONAL_REPRESENTATION('',(#122),#126);
+#122 = LINE('',#123,#124);
+#123 = CARTESIAN_POINT('',(6.28318530718,0.));
+#124 = VECTOR('',#125,1.);
+#125 = DIRECTION('',(0.,1.));
+#126 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#127 = ORIENTED_EDGE('',*,*,#128,.F.);
+#128 = EDGE_CURVE('',#106,#106,#129,.T.);
+#129 = SURFACE_CURVE('',#130,(#135,#142),.PCURVE_S1.);
+#130 = CIRCLE('',#131,5.);
+#131 = AXIS2_PLACEMENT_3D('',#132,#133,#134);
+#132 = CARTESIAN_POINT('',(0.,1.,-1.110223024625E-15));
+#133 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#134 = DIRECTION('',(1.,-4.930380657631E-32,-4.440892098501E-17));
+#135 = PCURVE('',#54,#136);
+#136 = DEFINITIONAL_REPRESENTATION('',(#137),#141);
+#137 = LINE('',#138,#139);
+#138 = CARTESIAN_POINT('',(0.,3.));
+#139 = VECTOR('',#140,1.);
+#140 = DIRECTION('',(1.,0.));
+#141 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#142 = PCURVE('',#143,#148);
+#143 = PLANE('',#144);
+#144 = AXIS2_PLACEMENT_3D('',#145,#146,#147);
+#145 = CARTESIAN_POINT('',(0.,1.,-1.110223024625E-15));
+#146 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#147 = DIRECTION('',(1.,-4.930380657631E-32,-4.440892098501E-17));
+#148 = DEFINITIONAL_REPRESENTATION('',(#149),#153);
+#149 = CIRCLE('',#150,5.);
+#150 = AXIS2_PLACEMENT_2D('',#151,#152);
+#151 = CARTESIAN_POINT('',(0.,0.));
+#152 = DIRECTION('',(1.,-9.860761315263E-33));
+#153 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#154 = ORIENTED_EDGE('',*,*,#105,.F.);
+#155 = ADVANCED_FACE('',(#156),#89,.F.);
+#156 = FACE_BOUND('',#157,.F.);
+#157 = EDGE_LOOP('',(#158,#159,#182,#209));
+#158 = ORIENTED_EDGE('',*,*,#68,.F.);
+#159 = ORIENTED_EDGE('',*,*,#160,.T.);
+#160 = EDGE_CURVE('',#69,#161,#163,.T.);
+#161 = VERTEX_POINT('',#162);
+#162 = CARTESIAN_POINT('',(-4.,3.8,-4.218847493576E-15));
+#163 = SEAM_CURVE('',#164,(#168,#175),.PCURVE_S1.);
+#164 = LINE('',#165,#166);
+#165 = CARTESIAN_POINT('',(-4.,4.,-4.440892098501E-15));
+#166 = VECTOR('',#167,1.);
+#167 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#168 = PCURVE('',#89,#169);
+#169 = DEFINITIONAL_REPRESENTATION('',(#170),#174);
+#170 = LINE('',#171,#172);
+#171 = CARTESIAN_POINT('',(6.28318530718,0.));
+#172 = VECTOR('',#173,1.);
+#173 = DIRECTION('',(0.,-1.));
+#174 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#175 = PCURVE('',#89,#176);
+#176 = DEFINITIONAL_REPRESENTATION('',(#177),#181);
+#177 = LINE('',#178,#179);
+#178 = CARTESIAN_POINT('',(0.,0.));
+#179 = VECTOR('',#180,1.);
+#180 = DIRECTION('',(0.,-1.));
+#181 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#182 = ORIENTED_EDGE('',*,*,#183,.T.);
+#183 = EDGE_CURVE('',#161,#161,#184,.T.);
+#184 = SURFACE_CURVE('',#185,(#190,#197),.PCURVE_S1.);
+#185 = CIRCLE('',#186,4.);
+#186 = AXIS2_PLACEMENT_3D('',#187,#188,#189);
+#187 = CARTESIAN_POINT('',(0.,3.8,-4.218847493576E-15));
+#188 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#189 = DIRECTION('',(-1.,0.,0.));
+#190 = PCURVE('',#89,#191);
+#191 = DEFINITIONAL_REPRESENTATION('',(#192),#196);
+#192 = LINE('',#193,#194);
+#193 = CARTESIAN_POINT('',(0.,-0.2));
+#194 = VECTOR('',#195,1.);
+#195 = DIRECTION('',(1.,0.));
+#196 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#197 = PCURVE('',#198,#203);
+#198 = PLANE('',#199);
+#199 = AXIS2_PLACEMENT_3D('',#200,#201,#202);
+#200 = CARTESIAN_POINT('',(2.563950248511E-16,3.8,-3.9274164667E-15));
+#201 = DIRECTION('',(-3.700743415417E-17,1.,-1.114825108265E-15));
+#202 = DIRECTION('',(0.,-1.114825108265E-15,-1.));
+#203 = DEFINITIONAL_REPRESENTATION('',(#204),#208);
+#204 = CIRCLE('',#205,4.);
+#205 = AXIS2_PLACEMENT_2D('',#206,#207);
+#206 = CARTESIAN_POINT('',(2.91431026876E-16,2.563950248511E-16));
+#207 = DIRECTION('',(0.,1.));
+#208 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#209 = ORIENTED_EDGE('',*,*,#160,.F.);
+#210 = ADVANCED_FACE('',(#211,#214),#143,.F.);
+#211 = FACE_BOUND('',#212,.T.);
+#212 = EDGE_LOOP('',(#213));
+#213 = ORIENTED_EDGE('',*,*,#128,.T.);
+#214 = FACE_BOUND('',#215,.T.);
+#215 = EDGE_LOOP('',(#216));
+#216 = ORIENTED_EDGE('',*,*,#217,.F.);
+#217 = EDGE_CURVE('',#218,#218,#220,.T.);
+#218 = VERTEX_POINT('',#219);
+#219 = CARTESIAN_POINT('',(5.75,1.,-1.33226762955E-15));
+#220 = SURFACE_CURVE('',#221,(#226,#233),.PCURVE_S1.);
+#221 = CIRCLE('',#222,5.75);
+#222 = AXIS2_PLACEMENT_3D('',#223,#224,#225);
+#223 = CARTESIAN_POINT('',(0.,1.,-1.110223024625E-15));
+#224 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#225 = DIRECTION('',(1.,-4.287287528375E-32,-3.861645303044E-17));
+#226 = PCURVE('',#143,#227);
+#227 = DEFINITIONAL_REPRESENTATION('',(#228),#232);
+#228 = CIRCLE('',#229,5.75);
+#229 = AXIS2_PLACEMENT_2D('',#230,#231);
+#230 = CARTESIAN_POINT('',(0.,0.));
+#231 = DIRECTION('',(1.,5.792467954566E-18));
+#232 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#233 = PCURVE('',#234,#239);
+#234 = CYLINDRICAL_SURFACE('',#235,5.75);
+#235 = AXIS2_PLACEMENT_3D('',#236,#237,#238);
+#236 = CARTESIAN_POINT('',(0.,1.,-1.110223024625E-15));
+#237 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#238 = DIRECTION('',(1.,-4.287287528375E-32,-3.861645303044E-17));
+#239 = DEFINITIONAL_REPRESENTATION('',(#240),#244);
+#240 = LINE('',#241,#242);
+#241 = CARTESIAN_POINT('',(0.,0.));
+#242 = VECTOR('',#243,1.);
+#243 = DIRECTION('',(1.,0.));
+#244 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#245 = ADVANCED_FACE('',(#246,#249),#198,.T.);
+#246 = FACE_BOUND('',#247,.T.);
+#247 = EDGE_LOOP('',(#248));
+#248 = ORIENTED_EDGE('',*,*,#183,.T.);
+#249 = FACE_BOUND('',#250,.F.);
+#250 = EDGE_LOOP('',(#251));
+#251 = ORIENTED_EDGE('',*,*,#252,.T.);
+#252 = EDGE_CURVE('',#253,#253,#255,.T.);
+#253 = VERTEX_POINT('',#254);
+#254 = CARTESIAN_POINT('',(-2.75,3.8,-4.218847493576E-15));
+#255 = SURFACE_CURVE('',#256,(#261,#268),.PCURVE_S1.);
+#256 = CIRCLE('',#257,2.75);
+#257 = AXIS2_PLACEMENT_3D('',#258,#259,#260);
+#258 = CARTESIAN_POINT('',(0.,3.8,-4.218847493576E-15));
+#259 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#260 = DIRECTION('',(-1.,0.,0.));
+#261 = PCURVE('',#198,#262);
+#262 = DEFINITIONAL_REPRESENTATION('',(#263),#267);
+#263 = CIRCLE('',#264,2.75);
+#264 = AXIS2_PLACEMENT_2D('',#265,#266);
+#265 = CARTESIAN_POINT('',(2.91431026876E-16,2.563950248511E-16));
+#266 = DIRECTION('',(0.,1.));
+#267 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#268 = PCURVE('',#269,#274);
+#269 = CYLINDRICAL_SURFACE('',#270,2.75);
+#270 = AXIS2_PLACEMENT_3D('',#271,#272,#273);
+#271 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#272 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#273 = DIRECTION('',(-1.,0.,0.));
+#274 = DEFINITIONAL_REPRESENTATION('',(#275),#279);
+#275 = LINE('',#276,#277);
+#276 = CARTESIAN_POINT('',(0.,-0.2));
+#277 = VECTOR('',#278,1.);
+#278 = DIRECTION('',(1.,0.));
+#279 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#280 = ADVANCED_FACE('',(#281),#234,.T.);
+#281 = FACE_BOUND('',#282,.T.);
+#282 = EDGE_LOOP('',(#283,#284,#307,#334));
+#283 = ORIENTED_EDGE('',*,*,#217,.T.);
+#284 = ORIENTED_EDGE('',*,*,#285,.T.);
+#285 = EDGE_CURVE('',#218,#286,#288,.T.);
+#286 = VERTEX_POINT('',#287);
+#287 = CARTESIAN_POINT('',(5.75,0.,0.));
+#288 = SEAM_CURVE('',#289,(#293,#300),.PCURVE_S1.);
+#289 = LINE('',#290,#291);
+#290 = CARTESIAN_POINT('',(5.75,1.,-1.33226762955E-15));
+#291 = VECTOR('',#292,1.);
+#292 = DIRECTION('',(0.,-1.,1.33226762955E-15));
+#293 = PCURVE('',#234,#294);
+#294 = DEFINITIONAL_REPRESENTATION('',(#295),#299);
+#295 = LINE('',#296,#297);
+#296 = CARTESIAN_POINT('',(0.,0.));
+#297 = VECTOR('',#298,1.);
+#298 = DIRECTION('',(0.,1.));
+#299 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#300 = PCURVE('',#234,#301);
+#301 = DEFINITIONAL_REPRESENTATION('',(#302),#306);
+#302 = LINE('',#303,#304);
+#303 = CARTESIAN_POINT('',(6.28318530718,0.));
+#304 = VECTOR('',#305,1.);
+#305 = DIRECTION('',(0.,1.));
+#306 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#307 = ORIENTED_EDGE('',*,*,#308,.F.);
+#308 = EDGE_CURVE('',#286,#286,#309,.T.);
+#309 = SURFACE_CURVE('',#310,(#315,#322),.PCURVE_S1.);
+#310 = CIRCLE('',#311,5.75);
+#311 = AXIS2_PLACEMENT_3D('',#312,#313,#314);
+#312 = CARTESIAN_POINT('',(0.,0.,0.));
+#313 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#314 = DIRECTION('',(1.,0.,0.));
+#315 = PCURVE('',#234,#316);
+#316 = DEFINITIONAL_REPRESENTATION('',(#317),#321);
+#317 = LINE('',#318,#319);
+#318 = CARTESIAN_POINT('',(0.,1.));
+#319 = VECTOR('',#320,1.);
+#320 = DIRECTION('',(1.,0.));
+#321 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#322 = PCURVE('',#323,#328);
+#323 = PLANE('',#324);
+#324 = AXIS2_PLACEMENT_3D('',#325,#326,#327);
+#325 = CARTESIAN_POINT('',(0.,0.,0.));
+#326 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#327 = DIRECTION('',(1.,0.,0.));
+#328 = DEFINITIONAL_REPRESENTATION('',(#329),#333);
+#329 = CIRCLE('',#330,5.75);
+#330 = AXIS2_PLACEMENT_2D('',#331,#332);
+#331 = CARTESIAN_POINT('',(0.,0.));
+#332 = DIRECTION('',(1.,-0.));
+#333 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#334 = ORIENTED_EDGE('',*,*,#285,.F.);
+#335 = ADVANCED_FACE('',(#336),#269,.T.);
+#336 = FACE_BOUND('',#337,.T.);
+#337 = EDGE_LOOP('',(#338,#371,#392,#393));
+#338 = ORIENTED_EDGE('',*,*,#339,.F.);
+#339 = EDGE_CURVE('',#340,#340,#342,.T.);
+#340 = VERTEX_POINT('',#341);
+#341 = CARTESIAN_POINT('',(-2.75,4.,-4.440892098501E-15));
+#342 = SURFACE_CURVE('',#343,(#348,#355),.PCURVE_S1.);
+#343 = CIRCLE('',#344,2.75);
+#344 = AXIS2_PLACEMENT_3D('',#345,#346,#347);
+#345 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#346 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#347 = DIRECTION('',(-1.,0.,0.));
+#348 = PCURVE('',#269,#349);
+#349 = DEFINITIONAL_REPRESENTATION('',(#350),#354);
+#350 = LINE('',#351,#352);
+#351 = CARTESIAN_POINT('',(0.,0.));
+#352 = VECTOR('',#353,1.);
+#353 = DIRECTION('',(1.,0.));
+#354 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#355 = PCURVE('',#356,#361);
+#356 = PLANE('',#357);
+#357 = AXIS2_PLACEMENT_3D('',#358,#359,#360);
+#358 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#359 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#360 = DIRECTION('',(1.,-6.573840876842E-31,-5.921189464668E-16));
+#361 = DEFINITIONAL_REPRESENTATION('',(#362),#370);
+#362 = ( BOUNDED_CURVE() B_SPLINE_CURVE(2,(#363,#364,#365,#366,#367,#368
+,#369),.UNSPECIFIED.,.F.,.F.) B_SPLINE_CURVE_WITH_KNOTS((1,2,2,2,2,1),(
+    -2.094395102393,0.,2.094395102393,4.188790204786,6.28318530718,
+8.377580409573),.UNSPECIFIED.) CURVE() GEOMETRIC_REPRESENTATION_ITEM() 
+RATIONAL_B_SPLINE_CURVE((1.,0.5,1.,0.5,1.,0.5,1.)) REPRESENTATION_ITEM(
+  '') );
+#363 = CARTESIAN_POINT('',(-2.75,-1.628327102784E-15));
+#364 = CARTESIAN_POINT('',(-2.75,4.763139720814));
+#365 = CARTESIAN_POINT('',(1.375,2.381569860407));
+#366 = CARTESIAN_POINT('',(5.5,3.930209945098E-15));
+#367 = CARTESIAN_POINT('',(1.375,-2.381569860407));
+#368 = CARTESIAN_POINT('',(-2.75,-4.763139720814));
+#369 = CARTESIAN_POINT('',(-2.75,-1.628327102784E-15));
+#370 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#371 = ORIENTED_EDGE('',*,*,#372,.T.);
+#372 = EDGE_CURVE('',#340,#253,#373,.T.);
+#373 = SEAM_CURVE('',#374,(#378,#385),.PCURVE_S1.);
+#374 = LINE('',#375,#376);
+#375 = CARTESIAN_POINT('',(-2.75,4.,-4.440892098501E-15));
+#376 = VECTOR('',#377,1.);
+#377 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#378 = PCURVE('',#269,#379);
+#379 = DEFINITIONAL_REPRESENTATION('',(#380),#384);
+#380 = LINE('',#381,#382);
+#381 = CARTESIAN_POINT('',(6.28318530718,0.));
+#382 = VECTOR('',#383,1.);
+#383 = DIRECTION('',(0.,-1.));
+#384 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#385 = PCURVE('',#269,#386);
+#386 = DEFINITIONAL_REPRESENTATION('',(#387),#391);
+#387 = LINE('',#388,#389);
+#388 = CARTESIAN_POINT('',(0.,0.));
+#389 = VECTOR('',#390,1.);
+#390 = DIRECTION('',(0.,-1.));
+#391 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#392 = ORIENTED_EDGE('',*,*,#252,.T.);
+#393 = ORIENTED_EDGE('',*,*,#372,.F.);
+#394 = ADVANCED_FACE('',(#395,#398),#323,.T.);
+#395 = FACE_BOUND('',#396,.F.);
+#396 = EDGE_LOOP('',(#397));
+#397 = ORIENTED_EDGE('',*,*,#308,.F.);
+#398 = FACE_BOUND('',#399,.F.);
+#399 = EDGE_LOOP('',(#400));
+#400 = ORIENTED_EDGE('',*,*,#401,.T.);
+#401 = EDGE_CURVE('',#402,#402,#404,.T.);
+#402 = VERTEX_POINT('',#403);
+#403 = CARTESIAN_POINT('',(4.,0.,0.));
+#404 = SURFACE_CURVE('',#405,(#410,#417),.PCURVE_S1.);
+#405 = CIRCLE('',#406,4.);
+#406 = AXIS2_PLACEMENT_3D('',#407,#408,#409);
+#407 = CARTESIAN_POINT('',(0.,0.,0.));
+#408 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#409 = DIRECTION('',(1.,0.,0.));
+#410 = PCURVE('',#323,#411);
+#411 = DEFINITIONAL_REPRESENTATION('',(#412),#416);
+#412 = CIRCLE('',#413,4.);
+#413 = AXIS2_PLACEMENT_2D('',#414,#415);
+#414 = CARTESIAN_POINT('',(0.,0.));
+#415 = DIRECTION('',(1.,-0.));
+#416 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#417 = PCURVE('',#418,#423);
+#418 = CYLINDRICAL_SURFACE('',#419,4.);
+#419 = AXIS2_PLACEMENT_3D('',#420,#421,#422);
+#420 = CARTESIAN_POINT('',(0.,0.,0.));
+#421 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#422 = DIRECTION('',(1.,0.,0.));
+#423 = DEFINITIONAL_REPRESENTATION('',(#424),#428);
+#424 = LINE('',#425,#426);
+#425 = CARTESIAN_POINT('',(0.,0.));
+#426 = VECTOR('',#427,1.);
+#427 = DIRECTION('',(1.,0.));
+#428 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#429 = ADVANCED_FACE('',(#430,#433),#356,.F.);
+#430 = FACE_BOUND('',#431,.T.);
+#431 = EDGE_LOOP('',(#432));
+#432 = ORIENTED_EDGE('',*,*,#339,.T.);
+#433 = FACE_BOUND('',#434,.T.);
+#434 = EDGE_LOOP('',(#435));
+#435 = ORIENTED_EDGE('',*,*,#436,.T.);
+#436 = EDGE_CURVE('',#437,#437,#439,.T.);
+#437 = VERTEX_POINT('',#438);
+#438 = CARTESIAN_POINT('',(1.5,4.,-5.329070518201E-15));
+#439 = SURFACE_CURVE('',#440,(#445,#452),.PCURVE_S1.);
+#440 = CIRCLE('',#441,1.5);
+#441 = AXIS2_PLACEMENT_3D('',#442,#443,#444);
+#442 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#443 = DIRECTION('',(-8.75811540203E-47,-1.,1.110223024625E-15));
+#444 = DIRECTION('',(1.,-6.573840876842E-31,-5.921189464668E-16));
+#445 = PCURVE('',#356,#446);
+#446 = DEFINITIONAL_REPRESENTATION('',(#447),#451);
+#447 = CIRCLE('',#448,1.5);
+#448 = AXIS2_PLACEMENT_2D('',#449,#450);
+#449 = CARTESIAN_POINT('',(0.,0.));
+#450 = DIRECTION('',(1.,-0.));
+#451 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#452 = PCURVE('',#453,#458);
+#453 = CYLINDRICAL_SURFACE('',#454,1.5);
+#454 = AXIS2_PLACEMENT_3D('',#455,#456,#457);
+#455 = CARTESIAN_POINT('',(0.,4.,-4.440892098501E-15));
+#456 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#457 = DIRECTION('',(1.,-6.573840876842E-31,-5.921189464668E-16));
+#458 = DEFINITIONAL_REPRESENTATION('',(#459),#463);
+#459 = LINE('',#460,#461);
+#460 = CARTESIAN_POINT('',(0.,0.));
+#461 = VECTOR('',#462,1.);
+#462 = DIRECTION('',(1.,0.));
+#463 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#464 = ADVANCED_FACE('',(#465),#418,.F.);
+#465 = FACE_BOUND('',#466,.F.);
+#466 = EDGE_LOOP('',(#467,#468,#491,#522));
+#467 = ORIENTED_EDGE('',*,*,#401,.F.);
+#468 = ORIENTED_EDGE('',*,*,#469,.T.);
+#469 = EDGE_CURVE('',#402,#470,#472,.T.);
+#470 = VERTEX_POINT('',#471);
+#471 = CARTESIAN_POINT('',(4.,0.2,-2.22044604925E-16));
+#472 = SEAM_CURVE('',#473,(#477,#484),.PCURVE_S1.);
+#473 = LINE('',#474,#475);
+#474 = CARTESIAN_POINT('',(4.,0.,0.));
+#475 = VECTOR('',#476,1.);
+#476 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#477 = PCURVE('',#418,#478);
+#478 = DEFINITIONAL_REPRESENTATION('',(#479),#483);
+#479 = LINE('',#480,#481);
+#480 = CARTESIAN_POINT('',(6.28318530718,0.));
+#481 = VECTOR('',#482,1.);
+#482 = DIRECTION('',(0.,-1.));
+#483 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#484 = PCURVE('',#418,#485);
+#485 = DEFINITIONAL_REPRESENTATION('',(#486),#490);
+#486 = LINE('',#487,#488);
+#487 = CARTESIAN_POINT('',(0.,0.));
+#488 = VECTOR('',#489,1.);
+#489 = DIRECTION('',(0.,-1.));
+#490 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#491 = ORIENTED_EDGE('',*,*,#492,.T.);
+#492 = EDGE_CURVE('',#470,#470,#493,.T.);
+#493 = SURFACE_CURVE('',#494,(#499,#506),.PCURVE_S1.);
+#494 = CIRCLE('',#495,4.);
+#495 = AXIS2_PLACEMENT_3D('',#496,#497,#498);
+#496 = CARTESIAN_POINT('',(0.,0.2,-2.22044604925E-16));
+#497 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#498 = DIRECTION('',(1.,0.,0.));
+#499 = PCURVE('',#418,#500);
+#500 = DEFINITIONAL_REPRESENTATION('',(#501),#505);
+#501 = LINE('',#502,#503);
+#502 = CARTESIAN_POINT('',(0.,-0.2));
+#503 = VECTOR('',#504,1.);
+#504 = DIRECTION('',(1.,0.));
+#505 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#506 = PCURVE('',#507,#512);
+#507 = PLANE('',#508);
+#508 = AXIS2_PLACEMENT_3D('',#509,#510,#511);
+#509 = CARTESIAN_POINT('',(4.,0.2,-2.22044604925E-16));
+#510 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#511 = DIRECTION('',(0.,-1.110223024625E-15,-1.));
+#512 = DEFINITIONAL_REPRESENTATION('',(#513),#521);
+#513 = ( BOUNDED_CURVE() B_SPLINE_CURVE(2,(#514,#515,#516,#517,#518,#519
+,#520),.UNSPECIFIED.,.F.,.F.) B_SPLINE_CURVE_WITH_KNOTS((1,2,2,2,2,1),(
+    -2.094395102393,0.,2.094395102393,4.188790204786,6.28318530718,
+8.377580409573),.UNSPECIFIED.) CURVE() GEOMETRIC_REPRESENTATION_ITEM() 
+RATIONAL_B_SPLINE_CURVE((1.,0.5,1.,0.5,1.,0.5,1.)) REPRESENTATION_ITEM(
+  '') );
+#514 = CARTESIAN_POINT('',(0.,0.));
+#515 = CARTESIAN_POINT('',(-6.928203230276,0.));
+#516 = CARTESIAN_POINT('',(-3.464101615138,6.));
+#517 = CARTESIAN_POINT('',(-9.797174393179E-16,12.));
+#518 = CARTESIAN_POINT('',(3.464101615138,6.));
+#519 = CARTESIAN_POINT('',(6.928203230276,6.661338147751E-15));
+#520 = CARTESIAN_POINT('',(0.,0.));
+#521 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#522 = ORIENTED_EDGE('',*,*,#469,.F.);
+#523 = ADVANCED_FACE('',(#524),#453,.F.);
+#524 = FACE_BOUND('',#525,.F.);
+#525 = EDGE_LOOP('',(#526,#527,#550,#577));
+#526 = ORIENTED_EDGE('',*,*,#436,.T.);
+#527 = ORIENTED_EDGE('',*,*,#528,.T.);
+#528 = EDGE_CURVE('',#437,#529,#531,.T.);
+#529 = VERTEX_POINT('',#530);
+#530 = CARTESIAN_POINT('',(1.5,0.,0.));
+#531 = SEAM_CURVE('',#532,(#536,#543),.PCURVE_S1.);
+#532 = LINE('',#533,#534);
+#533 = CARTESIAN_POINT('',(1.5,4.,-5.329070518201E-15));
+#534 = VECTOR('',#535,1.);
+#535 = DIRECTION('',(0.,-1.,1.33226762955E-15));
+#536 = PCURVE('',#453,#537);
+#537 = DEFINITIONAL_REPRESENTATION('',(#538),#542);
+#538 = LINE('',#539,#540);
+#539 = CARTESIAN_POINT('',(0.,0.));
+#540 = VECTOR('',#541,1.);
+#541 = DIRECTION('',(0.,1.));
+#542 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#543 = PCURVE('',#453,#544);
+#544 = DEFINITIONAL_REPRESENTATION('',(#545),#549);
+#545 = LINE('',#546,#547);
+#546 = CARTESIAN_POINT('',(6.28318530718,0.));
+#547 = VECTOR('',#548,1.);
+#548 = DIRECTION('',(0.,1.));
+#549 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#550 = ORIENTED_EDGE('',*,*,#551,.F.);
+#551 = EDGE_CURVE('',#529,#529,#552,.T.);
+#552 = SURFACE_CURVE('',#553,(#558,#565),.PCURVE_S1.);
+#553 = CIRCLE('',#554,1.5);
+#554 = AXIS2_PLACEMENT_3D('',#555,#556,#557);
+#555 = CARTESIAN_POINT('',(0.,0.,0.));
+#556 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#557 = DIRECTION('',(1.,0.,0.));
+#558 = PCURVE('',#453,#559);
+#559 = DEFINITIONAL_REPRESENTATION('',(#560),#564);
+#560 = LINE('',#561,#562);
+#561 = CARTESIAN_POINT('',(0.,4.));
+#562 = VECTOR('',#563,1.);
+#563 = DIRECTION('',(1.,0.));
+#564 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#565 = PCURVE('',#566,#571);
+#566 = PLANE('',#567);
+#567 = AXIS2_PLACEMENT_3D('',#568,#569,#570);
+#568 = CARTESIAN_POINT('',(0.,0.,0.));
+#569 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#570 = DIRECTION('',(1.,0.,0.));
+#571 = DEFINITIONAL_REPRESENTATION('',(#572),#576);
+#572 = CIRCLE('',#573,1.5);
+#573 = AXIS2_PLACEMENT_2D('',#574,#575);
+#574 = CARTESIAN_POINT('',(0.,0.));
+#575 = DIRECTION('',(1.,-0.));
+#576 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#577 = ORIENTED_EDGE('',*,*,#528,.F.);
+#578 = ADVANCED_FACE('',(#579,#582),#507,.F.);
+#579 = FACE_BOUND('',#580,.T.);
+#580 = EDGE_LOOP('',(#581));
+#581 = ORIENTED_EDGE('',*,*,#492,.T.);
+#582 = FACE_BOUND('',#583,.F.);
+#583 = EDGE_LOOP('',(#584));
+#584 = ORIENTED_EDGE('',*,*,#585,.T.);
+#585 = EDGE_CURVE('',#586,#586,#588,.T.);
+#586 = VERTEX_POINT('',#587);
+#587 = CARTESIAN_POINT('',(2.75,0.2,-2.22044604925E-16));
+#588 = SURFACE_CURVE('',#589,(#594,#605),.PCURVE_S1.);
+#589 = CIRCLE('',#590,2.75);
+#590 = AXIS2_PLACEMENT_3D('',#591,#592,#593);
+#591 = CARTESIAN_POINT('',(0.,0.2,-2.22044604925E-16));
+#592 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#593 = DIRECTION('',(1.,0.,0.));
+#594 = PCURVE('',#507,#595);
+#595 = DEFINITIONAL_REPRESENTATION('',(#596),#604);
+#596 = ( BOUNDED_CURVE() B_SPLINE_CURVE(2,(#597,#598,#599,#600,#601,#602
+,#603),.UNSPECIFIED.,.F.,.F.) B_SPLINE_CURVE_WITH_KNOTS((1,2,2,2,2,1),(
+    -2.094395102393,0.,2.094395102393,4.188790204786,6.28318530718,
+8.377580409573),.UNSPECIFIED.) CURVE() GEOMETRIC_REPRESENTATION_ITEM() 
+RATIONAL_B_SPLINE_CURVE((1.,0.5,1.,0.5,1.,0.5,1.)) REPRESENTATION_ITEM(
+  '') );
+#597 = CARTESIAN_POINT('',(0.,1.25));
+#598 = CARTESIAN_POINT('',(-4.763139720814,1.25));
+#599 = CARTESIAN_POINT('',(-2.381569860407,5.375));
+#600 = CARTESIAN_POINT('',(-6.73555739531E-16,9.5));
+#601 = CARTESIAN_POINT('',(2.381569860407,5.375));
+#602 = CARTESIAN_POINT('',(4.763139720814,1.25));
+#603 = CARTESIAN_POINT('',(0.,1.25));
+#604 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#605 = PCURVE('',#606,#611);
+#606 = CYLINDRICAL_SURFACE('',#607,2.75);
+#607 = AXIS2_PLACEMENT_3D('',#608,#609,#610);
+#608 = CARTESIAN_POINT('',(0.,0.,0.));
+#609 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#610 = DIRECTION('',(1.,0.,0.));
+#611 = DEFINITIONAL_REPRESENTATION('',(#612),#616);
+#612 = LINE('',#613,#614);
+#613 = CARTESIAN_POINT('',(0.,-0.2));
+#614 = VECTOR('',#615,1.);
+#615 = DIRECTION('',(1.,0.));
+#616 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#617 = ADVANCED_FACE('',(#618,#644),#566,.T.);
+#618 = FACE_BOUND('',#619,.F.);
+#619 = EDGE_LOOP('',(#620));
+#620 = ORIENTED_EDGE('',*,*,#621,.F.);
+#621 = EDGE_CURVE('',#622,#622,#624,.T.);
+#622 = VERTEX_POINT('',#623);
+#623 = CARTESIAN_POINT('',(2.75,0.,0.));
+#624 = SURFACE_CURVE('',#625,(#630,#637),.PCURVE_S1.);
+#625 = CIRCLE('',#626,2.75);
+#626 = AXIS2_PLACEMENT_3D('',#627,#628,#629);
+#627 = CARTESIAN_POINT('',(0.,0.,0.));
+#628 = DIRECTION('',(0.,-1.,1.110223024625E-15));
+#629 = DIRECTION('',(1.,0.,0.));
+#630 = PCURVE('',#566,#631);
+#631 = DEFINITIONAL_REPRESENTATION('',(#632),#636);
+#632 = CIRCLE('',#633,2.75);
+#633 = AXIS2_PLACEMENT_2D('',#634,#635);
+#634 = CARTESIAN_POINT('',(0.,0.));
+#635 = DIRECTION('',(1.,-0.));
+#636 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#637 = PCURVE('',#606,#638);
+#638 = DEFINITIONAL_REPRESENTATION('',(#639),#643);
+#639 = LINE('',#640,#641);
+#640 = CARTESIAN_POINT('',(0.,0.));
+#641 = VECTOR('',#642,1.);
+#642 = DIRECTION('',(1.,0.));
+#643 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#644 = FACE_BOUND('',#645,.F.);
+#645 = EDGE_LOOP('',(#646));
+#646 = ORIENTED_EDGE('',*,*,#551,.T.);
+#647 = ADVANCED_FACE('',(#648),#606,.T.);
+#648 = FACE_BOUND('',#649,.T.);
+#649 = EDGE_LOOP('',(#650,#651,#672,#673));
+#650 = ORIENTED_EDGE('',*,*,#621,.F.);
+#651 = ORIENTED_EDGE('',*,*,#652,.T.);
+#652 = EDGE_CURVE('',#622,#586,#653,.T.);
+#653 = SEAM_CURVE('',#654,(#658,#665),.PCURVE_S1.);
+#654 = LINE('',#655,#656);
+#655 = CARTESIAN_POINT('',(2.75,0.,0.));
+#656 = VECTOR('',#657,1.);
+#657 = DIRECTION('',(0.,1.,-1.110223024625E-15));
+#658 = PCURVE('',#606,#659);
+#659 = DEFINITIONAL_REPRESENTATION('',(#660),#664);
+#660 = LINE('',#661,#662);
+#661 = CARTESIAN_POINT('',(6.28318530718,0.));
+#662 = VECTOR('',#663,1.);
+#663 = DIRECTION('',(0.,-1.));
+#664 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#665 = PCURVE('',#606,#666);
+#666 = DEFINITIONAL_REPRESENTATION('',(#667),#671);
+#667 = LINE('',#668,#669);
+#668 = CARTESIAN_POINT('',(0.,0.));
+#669 = VECTOR('',#670,1.);
+#670 = DIRECTION('',(0.,-1.));
+#671 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2) 
+PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
+  ) );
+#672 = ORIENTED_EDGE('',*,*,#585,.T.);
+#673 = ORIENTED_EDGE('',*,*,#652,.F.);
+#674 = ( GEOMETRIC_REPRESENTATION_CONTEXT(3) 
+GLOBAL_UNCERTAINTY_ASSIGNED_CONTEXT((#678)) GLOBAL_UNIT_ASSIGNED_CONTEXT
+((#675,#676,#677)) REPRESENTATION_CONTEXT('Context #1',
+  '3D Context with UNIT and UNCERTAINTY') );
+#675 = ( LENGTH_UNIT() NAMED_UNIT(*) SI_UNIT(.MILLI.,.METRE.) );
+#676 = ( NAMED_UNIT(*) PLANE_ANGLE_UNIT() SI_UNIT($,.RADIAN.) );
+#677 = ( NAMED_UNIT(*) SI_UNIT($,.STERADIAN.) SOLID_ANGLE_UNIT() );
+#678 = UNCERTAINTY_MEASURE_WITH_UNIT(LENGTH_MEASURE(1.E-07),#675,
+  'distance_accuracy_value','confusion accuracy');
+#679 = SHAPE_DEFINITION_REPRESENTATION(#680,#25);
+#680 = PRODUCT_DEFINITION_SHAPE('','',#681);
+#681 = PRODUCT_DEFINITION('design','',#682,#685);
+#682 = PRODUCT_DEFINITION_FORMATION('','',#683);
+#683 = PRODUCT('bottom_channel','bottom_channel','',(#684));
+#684 = MECHANICAL_CONTEXT('',#2,'mechanical');
+#685 = PRODUCT_DEFINITION_CONTEXT('part definition',#2,'design');
+#686 = CONTEXT_DEPENDENT_SHAPE_REPRESENTATION(#687,#689);
+#687 = ( REPRESENTATION_RELATIONSHIP('','',#25,#10) 
+REPRESENTATION_RELATIONSHIP_WITH_TRANSFORMATION(#688) 
+SHAPE_REPRESENTATION_RELATIONSHIP() );
+#688 = ITEM_DEFINED_TRANSFORMATION('','',#11,#15);
+#689 = PRODUCT_DEFINITION_SHAPE('Placement','Placement of an item',#690
+  );
+#690 = NEXT_ASSEMBLY_USAGE_OCCURRENCE('2','=>[0:1:1:2]','',#5,#681,$);
+#691 = PRODUCT_TYPE('part',$,(#683));
+#692 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#693,
+    #701,#708,#715,#722,#730,#737,#744,#751,#758,#765,#772,#779,#786),
+  #674);
+#693 = STYLED_ITEM('color',(#694),#28);
+#694 = PRESENTATION_STYLE_ASSIGNMENT((#695));
+#695 = SURFACE_STYLE_USAGE(.BOTH.,#696);
+#696 = SURFACE_SIDE_STYLE('',(#697));
+#697 = SURFACE_STYLE_FILL_AREA(#698);
+#698 = FILL_AREA_STYLE('',(#699));
+#699 = FILL_AREA_STYLE_COLOUR('',#700);
+#700 = COLOUR_RGB('',0.800000011921,0.800000011921,0.800000011921);
+#701 = STYLED_ITEM('color',(#702),#100);
+#702 = PRESENTATION_STYLE_ASSIGNMENT((#703));
+#703 = SURFACE_STYLE_USAGE(.BOTH.,#704);
+#704 = SURFACE_SIDE_STYLE('',(#705));
+#705 = SURFACE_STYLE_FILL_AREA(#706);
+#706 = FILL_AREA_STYLE('',(#707));
+#707 = FILL_AREA_STYLE_COLOUR('',#700);
+#708 = STYLED_ITEM('color',(#709),#155);
+#709 = PRESENTATION_STYLE_ASSIGNMENT((#710));
+#710 = SURFACE_STYLE_USAGE(.BOTH.,#711);
+#711 = SURFACE_SIDE_STYLE('',(#712));
+#712 = SURFACE_STYLE_FILL_AREA(#713);
+#713 = FILL_AREA_STYLE('',(#714));
+#714 = FILL_AREA_STYLE_COLOUR('',#700);
+#715 = STYLED_ITEM('color',(#716),#210);
+#716 = PRESENTATION_STYLE_ASSIGNMENT((#717));
+#717 = SURFACE_STYLE_USAGE(.BOTH.,#718);
+#718 = SURFACE_SIDE_STYLE('',(#719));
+#719 = SURFACE_STYLE_FILL_AREA(#720);
+#720 = FILL_AREA_STYLE('',(#721));
+#721 = FILL_AREA_STYLE_COLOUR('',#700);
+#722 = STYLED_ITEM('color',(#723),#245);
+#723 = PRESENTATION_STYLE_ASSIGNMENT((#724));
+#724 = SURFACE_STYLE_USAGE(.BOTH.,#725);
+#725 = SURFACE_SIDE_STYLE('',(#726));
+#726 = SURFACE_STYLE_FILL_AREA(#727);
+#727 = FILL_AREA_STYLE('',(#728));
+#728 = FILL_AREA_STYLE_COLOUR('',#729);
+#729 = COLOUR_RGB('',0.20000000298,0.20000000298,0.20000000298);
+#730 = STYLED_ITEM('color',(#731),#280);
+#731 = PRESENTATION_STYLE_ASSIGNMENT((#732));
+#732 = SURFACE_STYLE_USAGE(.BOTH.,#733);
+#733 = SURFACE_SIDE_STYLE('',(#734));
+#734 = SURFACE_STYLE_FILL_AREA(#735);
+#735 = FILL_AREA_STYLE('',(#736));
+#736 = FILL_AREA_STYLE_COLOUR('',#700);
+#737 = STYLED_ITEM('color',(#738),#335);
+#738 = PRESENTATION_STYLE_ASSIGNMENT((#739));
+#739 = SURFACE_STYLE_USAGE(.BOTH.,#740);
+#740 = SURFACE_SIDE_STYLE('',(#741));
+#741 = SURFACE_STYLE_FILL_AREA(#742);
+#742 = FILL_AREA_STYLE('',(#743));
+#743 = FILL_AREA_STYLE_COLOUR('',#700);
+#744 = STYLED_ITEM('color',(#745),#394);
+#745 = PRESENTATION_STYLE_ASSIGNMENT((#746));
+#746 = SURFACE_STYLE_USAGE(.BOTH.,#747);
+#747 = SURFACE_SIDE_STYLE('',(#748));
+#748 = SURFACE_STYLE_FILL_AREA(#749);
+#749 = FILL_AREA_STYLE('',(#750));
+#750 = FILL_AREA_STYLE_COLOUR('',#700);
+#751 = STYLED_ITEM('color',(#752),#429);
+#752 = PRESENTATION_STYLE_ASSIGNMENT((#753));
+#753 = SURFACE_STYLE_USAGE(.BOTH.,#754);
+#754 = SURFACE_SIDE_STYLE('',(#755));
+#755 = SURFACE_STYLE_FILL_AREA(#756);
+#756 = FILL_AREA_STYLE('',(#757));
+#757 = FILL_AREA_STYLE_COLOUR('',#700);
+#758 = STYLED_ITEM('color',(#759),#464);
+#759 = PRESENTATION_STYLE_ASSIGNMENT((#760));
+#760 = SURFACE_STYLE_USAGE(.BOTH.,#761);
+#761 = SURFACE_SIDE_STYLE('',(#762));
+#762 = SURFACE_STYLE_FILL_AREA(#763);
+#763 = FILL_AREA_STYLE('',(#764));
+#764 = FILL_AREA_STYLE_COLOUR('',#700);
+#765 = STYLED_ITEM('color',(#766),#523);
+#766 = PRESENTATION_STYLE_ASSIGNMENT((#767));
+#767 = SURFACE_STYLE_USAGE(.BOTH.,#768);
+#768 = SURFACE_SIDE_STYLE('',(#769));
+#769 = SURFACE_STYLE_FILL_AREA(#770);
+#770 = FILL_AREA_STYLE('',(#771));
+#771 = FILL_AREA_STYLE_COLOUR('',#700);
+#772 = STYLED_ITEM('color',(#773),#578);
+#773 = PRESENTATION_STYLE_ASSIGNMENT((#774));
+#774 = SURFACE_STYLE_USAGE(.BOTH.,#775);
+#775 = SURFACE_SIDE_STYLE('',(#776));
+#776 = SURFACE_STYLE_FILL_AREA(#777);
+#777 = FILL_AREA_STYLE('',(#778));
+#778 = FILL_AREA_STYLE_COLOUR('',#729);
+#779 = STYLED_ITEM('color',(#780),#617);
+#780 = PRESENTATION_STYLE_ASSIGNMENT((#781));
+#781 = SURFACE_STYLE_USAGE(.BOTH.,#782);
+#782 = SURFACE_SIDE_STYLE('',(#783));
+#783 = SURFACE_STYLE_FILL_AREA(#784);
+#784 = FILL_AREA_STYLE('',(#785));
+#785 = FILL_AREA_STYLE_COLOUR('',#700);
+#786 = STYLED_ITEM('color',(#787),#647);
+#787 = PRESENTATION_STYLE_ASSIGNMENT((#788));
+#788 = SURFACE_STYLE_USAGE(.BOTH.,#789);
+#789 = SURFACE_SIDE_STYLE('',(#790));
+#790 = SURFACE_STYLE_FILL_AREA(#791);
+#791 = FILL_AREA_STYLE('',(#792));
+#792 = FILL_AREA_STYLE_COLOUR('',#700);
+ENDSEC;
+END-ISO-10303-21;