It is a sad truism that most 3D CAD users have very little knowledge of traditional drawing methods. In fairness, why should they when modern techniques generally require a 3D Computer Aided Design (CAD) model to be the required output? However, plans and drawings have their place, and alongside its 21st Century capabilities, 3D Engineers has the utmost respect for the old school way of working and can see many benefits. For example, a drawing shows in clear relief the detail that is sometimes lost when viewing a 3D image on the screen. It also assists manufacture and reduces the possibility of error, as a Computer Numerical Control (CNC) operative can visualize the required goal. 3D Engineers has studied many old, as in 100 years plus, textbooks on technical drawing to comprehensively complement its proven pro-computer methods.