Embark on a comprehensive 8-hour tutorial series covering AutoCAD 3D for beginners. Master essential 3D modeling techniques, including basic and mechanical drawing, revolve and sweep commands, loft and helix operations, and dimensioning. Explore practical exercises to create 3D objects like pistons, paper clips, bottles, and furniture. Learn to work with various AutoCAD versions, from 2007 to 2021, and discover advanced features such as dynamic UCS, 3D mirroring, and section planes. Gain proficiency in designing complex 3D structures like bridges, walls, and piping systems. Practice converting 3D models to 2D drawings and apply materials to enhance visual appeal. By the end of this extensive tutorial, develop the skills to create intricate 3D models and mechanical drawings using AutoCAD's powerful toolset.