Gears+Go-Round

=Gears Go-Round: from Make Magazine Online= =[]=

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===//"We asked Dustyn Roberts, who teaches a course at NYU’s Interactive Telecommunications Program (ITP), called [|Mechanisms and Things That Move], to contribute something on fabricating your own gears for our [|Physical Science and Mechanics] theme. Dustyn has written a book, called [|Making Things Move]. It’ll be out in the fall and we’ll have more about it, and likely a giveaway, then. Thanks, Dustyn! — Gareth//=== ===Gears are easy to understand, make, and use, if you know the vocabulary and can space the gears at the correct distance apart. One nice thing about gears is that if you know any two things about them – let’s say outer diameter and number of teeth — you can use some simple equations to find everything else you need to know, including the correct center distance between them. First, look over the anatomy of the spur gear pair in figure 1 and the vocab below."===