There are CAD MIDDLE DATA CONVERTER.
CAD MIDDLE DATA is DXF,IGES and BMI.
DXF2IGES is CONVERTER that converte from DXF DATA to IGES DATA.
IGES2DXF is CONVERTER that converte from IGES DATA to DXF DATA.
BMI2IGES is CONVERTER that converte from BMI DATA to IGES DATA.
BMI2DXF is CONVERTER that converte from BMI DATA to DXF DATA.
If you try to converte CAD data, please send DATA to LHS by E-mail.