Lydia Sloan Cline has been happily using Autodesk products since AutoCAD 1.0 was released. She went from plotting her ideas on a flatbed table with pens in robotic arms to sketching them with modeling software. Lydia works for architecture firms, judges competitive technology events, and teaches drafting, modeling, and 3D printing classes at Johnson County Community College in Overland Park, Kansas. She is the author of 3D Printing with Autodesk 123D, Tinkercad, and MakerBot (published by McGraw-Hill) and other books.