Dr. Engine took one look at a regular eraser and thought, “This is far too simple. Let’s add LEGO and a questionable amount of power!” The result? A squad of overengineered Technic eraser machines that erase pencil marks with the ferocity of a caffeine-fueled tornado.

These machines don’t just erase—they wage war on graphite. Will they gently clean the paper, or will they erase time itself? Either way, one thing’s certain: no smudge stands a chance, and neither does common sense. Check them all out in the video below!

[Via TA]