Colossal Paper Machines- Make 10 Giant Models That Move-

Length: 2 feet Movement: The famous "Walschaerts" valve gear moves a piston rod back and forth. Lesson: Reversing motion without electronics.

Height: 22 inches Movement: A "pinching" claw opens and closes via a vertical shaft. Lesson: Screw threads and rack-and-pinion steering. Colossal Paper Machines- Make 10 Giant Models That Move-

: Projects are arranged from "easy" to "hard," allowing builders to develop their skills as they move through the book. Length: 2 feet Movement: The famous "Walschaerts" valve

Here's a step-by-step guide to making a simple colossal paper machine: sharpen your hobby knife

So gather your cardboard, sharpen your hobby knife, and clear the dining room table. The world of is waiting. Start with the paddle boat, practice the crank motion, and within a month, you’ll have a menagerie of paper beasts marching across your floor.