Creating a DEM with Civil 3D

One of my users called me the other day asking if there was any way to convert our DTM surface into a DEM surface, as a client had called them asking if it was possible.  The short answer to the question was yes, but let me review the fundamental differences in these...

Converting a Drawings Coordinate System

For one reason or another drawings sometimes need to be moved from one coordinate system (datum) to another.  A classic example may be moving from a NAD 27 datum to a NAD 83.  Whatever the case may be, how might one perform this translation as accurately as possible?...