Discover how to build a working Lego vending machine with just a few bricks! In this fun and easy tutorial, you’ll see how ...

All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Learn more. One of ...

Whenever I tried to make large mechanisms like that (but way less complex) out of technical Lego when I was younger, I always found that the twisting tended to make the gears push apart, jamming their ...