Using them to illuminate your Craigslist and eBay listings can help make a sale, and amateur photogs can get professional-looking shots with one. Create your own using K'nex and a little know how.

Needing a more robust micro controller, he switched to an Arduino mid-project, which he says runs the plotter far faster than the Stamp ever did.

The Free Universal Construction Kit might be just about the best thing to happen to construction toys, like, ever. The 3-D-printable kit consists of adapter bricks that let you join parts from ...

An exemplary display of the latter is The Citadel. Over the course of three years, redditor [Shadowman39] pieced together this monstrous K’nex structure.