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squaregears2.jpg

Richard Kline writes:

Non circular gears are strange. When the topic of square gear trains appears in casual conversation, people tend to think a joke is being made, that it is ‘impossible’ to make a square gear that actually meshes properly. After being drawn into a vicious debate with a co-worker about the existence and plausibility of such gears, I realized I had no choice but to resort to an actual demonstration to sway his view. In the not-too distant past this would have been a virtual impossibility, at the very least I would have had to spend an indeterminate amount of time hunched over a scroll saw, trying to cut splintery wooden gear prototypes by hand. Fortunately, this is the pushbutton world of 2009, a Google search turns up dozens of laser/waterjet cutting services and MakerBots are squeezing out ABS plastic Darth Vader helmets in every good nerd’s house this Christmas. And thus, a project was born…

Gears Squared

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of a dozen books on technology, DIY, and geek culture, including the first book about the web (Mosaic Quick Tour) and the Absolute Beginner’s Guide to Building Robots. He is currently working on a best-of collection of his writing, called Borg Like Me.


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