BRL-CAD is an open source Solid modeling and solid geometry system specifically used by United States Military. This free download is a standalone installer of BRL-CAD for Windows 64-bit. BRL-CAD Overview It is a powerful CAD solid modeling and geometry suite. As it is designed for U.S. Military so this wonderful tool is stable enough to handle its functionality perfectly. It has more than 20 years of development and production so Read More …