Try your hand at making these terrific projects that perform all kinds of fascinating movements:
- a "cam-and-follower" that bobs up and down
- an "eccentric" that flips around
- a "fast-return-actuator" that alternates fast and slow when you turn its handle
plus a dozen more funny mechanisms that whiz and whir while showing classic mechanical movements normally hidden from the eye inside machines and engines.
That's what all these projects are designed to do-perform their mechanical stunts to the delight of the folks who crank the handles and watch the fun.
Most other mechanical projects hide the movements inside, but these show their stuff out in the open: marbles that move, wheels that spin, even pistons that pump.
Yet they're all easy to make, with the step-by-step instructions and scores of how-to illustrations and draftsman-quality drawings.
Take a look inside at the full-color photos of each finished project. Then try to decide: Which one do you want to make first?
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