Modelação tridimensional EXC 03

Exc 03:
download file at:

http://gaudi.fa.utl.pt/~20108209/03 exc.3dm

Command:  _Rectangle
1 curve added to selection.
Command:  co
Command:  copy
2 curves added to selection.
Command:  co
Command:  copy
2 curves added to selection.
Command:  co
Command:  copy
2 curves added to selection.
Command:  Union
Unknown command: Union
Command:  _BooleanUnion
Command:  _Join
Can't join closed curves.
Can't join closed curves.
Command:  _Split
Command:  _Split
One curve split into 2 pieces.
Command:  Trim
1 curve added to selection.
Command:  _Delete
Command:  _Split
One curve split into 2 pieces.
1 curve added to selection.
Command:  _Delete
Command:  _Split
One curve split into 2 pieces.
2 curves added to selection.
1 curve added to selection.
Command:  _Delete
1 curve added to selection.
Command:  _Split
One curve split into 2 pieces.
1 curve added to selection.
Command:  _Delete
Command:  _Split
1 curve added to selection.
Command:  _Split
One curve split into 2 pieces.
1 curve added to selection.
Command:  _Split
Split failed, objects may not be within tolerance of one another.
1 curve added to selection.
1 curve added to selection.
Command:  _Split
One curve split into 2 pieces.
1 curve added to selection.
Command:  _Delete
1 curve added to selection.
Command:  _Delete
Command:  _Export