AutoCAD 3D Tutorial for Beginners 1 of 3 | AutoCAD 2014 3D Modeling Basic Tutorial Video for Beginner 1. This AutoCAD 3D tutorial for beginners shows how to do 3D modeling in AutoCAD. This is basics tutorial for beginners. AutoCAD 3D commands shown step by step in this tutorial are: Presspull, SE Isometric, how to change ucs, copy edges, orbit, continuous orbit, different visual styles.