Amazing Rubber Band Cars: Easy-to-Build Wind-Up Racers, by Mike Rigsby

By Mike Rigsby

Combining enjoyable and interactive actions, this consultant could have childrens captivated for hours developing wonderful racing vehicles with the fundamentals of merely rubber bands, cardboard, and glue. those basic directions with templates let budding engineers to achieve hands-on event as they examine not just the best way to construct a easy racer, yet the best way to make differences equivalent to aluminum foil axle bearings, guidance mechanisms, hinges, cam shafts, and wheels produced from outdated CDs. This helpful source has step by step directions for creating a easy rubber-band version, a railroad push-car, and a high-speed racer. different particular initiatives comprise Oscar the giggling Clown, which has a jaw mechanism that opens and closes whilst it strikes, and notice the puppy, which has a relocating tail. kids can also the way to construct a rubber band vehicle large enough for a human. Exploring wheels, bearings, and friction, youngsters will examine not just how one can make fast racers but in addition the technological know-how that makes the method work.

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Extra info for Amazing Rubber Band Cars: Easy-to-Build Wind-Up Racers, Models, and Toys

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Materials and Tools 1 ⁄ 8 -inch-thick corrugated cardboard Scissors Round pencil White glue 4 C-cell batteries 2 rubber bands 51 01 (001-056) chapters 01-07 52 9/7/07 1:41 PM Page 52 Amazing Rubber Band Cars Copy the templates from pages 55 and 56 onto cardboard. You will need two Large Wheels (7A), two Small Wheels (7B), one Bottom (7C), one Front (7D), one Back (7E), and two Side Rails (7F). Now take one small wheel and attach it, using glue, to a pencil as shown. Add glue to the inside surface of the small wheel, then glue a large wheel to the small wheel.

As the pulley turns, be sure that the rubber band is turning—sometimes you have to use your fingers to keep the rubber band from slipping on the first rotation. When fully wound, at the point where the fishing line is wrapped around the rear axle, this car will travel at least three times as far as the Basic Rubber Band Car. 01 (001-056) chapters 01-07 28 9/7/07 1:39 PM Page 28 Amazing Rubber Band Cars Decorating the Car Materials and Tools Light and dark blue acrylic paint Ocean-themed stickers Wiggle eyes Paintbrushes Here is just one idea for decorating your Distance Car—a fish in the ocean theme.

01 (001-056) chapters 01-07 9/7/07 1:38 PM Page 17 3 Bearings and Friction To make a car roll more easily, you must reduce the friction between the bearings and the axles. Bearings are the part of a machine in which an axle turns. The bearings on your car have been nothing more than a hole in a piece of cardboard . . until now. You can reduce friction with a simple aluminum foil bearing. Materials and Tools Scissors Ruler Aluminum foil 2 round pencils 17 01 (001-056) chapters 01-07 18 9/7/07 1:38 PM Page 18 Amazing Rubber Band Cars Start with the cardboard car frame from chapter 1.

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