Discover how to build a working Lego vending machine with just a few bricks! In this fun and easy tutorial, you’ll see how this simple Lego mechanism dispenses candy using real coins. Great for Lego ...

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 ...