Read e-book online Amazing Rubber Band Cars: Easy-to-Build Wind-Up Racers, PDF

By Mike Rigsby

ISBN-10: 1556527365

ISBN-13: 9781556527364

Combining enjoyable and interactive actions, this advisor can have teenagers captivated for hours developing very good racing autos with the fundamentals of merely rubber bands, cardboard, and glue. those uncomplicated directions with templates permit budding engineers to realize hands-on adventure as they research not just the best way to construct a uncomplicated racer, yet easy methods to make ameliorations corresponding to aluminum foil axle bearings, guidance mechanisms, hinges, cam shafts, and wheels produced from previous CDs. This helpful source has step by step directions for creating a simple rubber-band version, a railroad push-car, and a high-speed racer. different specified initiatives contain 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 may also find out how to construct a rubber band automobile sufficiently big for a human. Exploring wheels, bearings, and friction, young children will research not just how you can make quickly racers but in addition the technology that makes the method work.

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

Example text

Then remove the pencil. 01 (001-056) chapters 01-07 20 9/7/07 1:39 PM Page 20 Amazing Rubber Band Cars Repeat the process for the other three frame holes and install the pencil axles and wheels. Testing the Bearings Compare your new and improved car with the basic cardboard car from chapter 1. Place the cars side by side on a “hill” made by placing books under one end a piece of foamboard or cardboard to create a slope. (Be sure to remove the rubber band from the basic cardboard car. ) Slowly raise the board until one of the cars starts to roll.

Be sure their center holes align. Place glue in the outer hole of the special wheel. Insert a pushpin into the hole with the glue. The top of the pushpin should stick out from the special wheel, as shown in the photo. Insert a pencil axle through the entire wheel assembly and coat the eraser end with glue. 01 (001-056) chapters 01-07 42 9/7/07 1:40 PM Page 42 Amazing Rubber Band Cars Before the glue dries, push the pencil in until the eraser is flush with (does not stick out of) the wheel. Insert the pencil axle through the holes at the back of the frame, and glue a wheel to the other end of the axle.

You will use these holes to mount the pulley. Glue the three small inner pulleys pieces together, making sure the holes align. Then glue the two outer pulleys to the inner pulleys. Finally, punch a hole into one of the outer pulley wheels, as shown. 01 (001-056) chapters 01-07 9/7/07 1:39 PM Page 25 Distance Car Insert a pencil through one side rail hole. Add a spot of glue to the pencil, and slide it through the pulley wheels. Slide the end of the pencil through the other side rail hole. Your car should now look like this.

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

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