The gear ratio isn’t perfect — [Simon] calculates its drift to be 20 hours over a year -but it’s close enough for the clock’s given purpose of being a cool thing.

A gear drive, a ratcheted winding sprocket, and a ball chain gave the clock about one hundred minutes of runtime. Adding a recharging mechanism was fairly straightforward.

In this video, I fabricate a missing piece for a vintage punch clock using 3D printing technology. The piece is designed in ...

Not only is Nike working on 3D-printed shoes, it has already made the world's first sports bag with 3D-printed parts, along with 3D-printed shin guards. Certainly not all of Nike's gear is going ...