Book excerpt: From a simple desk tidy to an elaborate castle, this step-by-step guide to 3D printing is perfect for children and beginners who want to learn how to design and print anything even if they do not own a printer. 3D Printing Projects provides an introduction to the exciting and ever-expanding world of 3D designing and printing. Learn how a 3D printer works and the different types of 3D printers on the market. Understand the basic 3D printing and designing terms, how to create and prepare files for printing, and also how to scan things to create a 3D model! You will also find out the common troubles faced while 3D printing and simple tricks to fix them. All the projects included in the book can be made using freely available online 3D modeling/CAD programs. Each project has a print time, details of filament or material needed, and a difficulty rating - from "easy" for beginners to "difficult" for those looking for a new challenge. Step-by-step instructions walk you through the 3D design process, from digital modeling and sculpting to slicing, printing, and painting so that children can make their own shark-shaped phone stand, customized lamps, and much more. The book also gives inspiration to further enhance your projects once you've mastered the basics. Join the 3D printing revolution today with DK's 3D Printing Projects book.