Motors and gear trains with micrometer dimensions and powered by light are fabricated using semiconductor lithography and ...

When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.

KHK has been making metric gears for nearly 90 years. Gear manufacturing requires proper material selection, cutting machines, lathes, rack panels, hobbing machines, teeth shape measurement and more.

This article was updated March 6, 2023. It was originally published Aug. 1, 2001. Gears—even plastic ones—need to be lubricated if engineers are going to coax the best performance out of them. In the ...

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Makers, engineers and hobbyists who would like to automatically manufacture a variety of different size plastic gears you might be interested in a unique machine built using a little Arduino hardware, ...