A fierce LEGO reptile
You can build this LEGO rattlesnake with a single LEGO MINDSTORMS Education EV3 set 45544. This EV3 project allows you to scare intruders, and guard your precious stuff!
By building this LEGO rattlesnake, you will learn how to make gears mesh at right angles, how to transform rotation into alternate motion, and how to make a scissorlift-like leverage, a mechanism that you can reuse to make a LEGO retractable grabber. This LEGO rattlesnake comes with detailed building instructions, and is designed to be programmed even with the simple Brick Program App.