Do you have lots of gifts to wrap? Wouldn’t it be great if there was a machine that could measure and cut paper to exactly the right size? LEGO builder The Brick Wall made just the thing. Simply place a present on the box scanner, and the Mindstorms-controlled machine automatically unrolls the paper and cuts it to size.
Yoshihito Isogawa shows off another impressive build. He used LEGO Technic and Mindstorms parts, along with mirrors and a laser pointer to create a mechanism that can project laser patterns on the wall by rapidly modulating its reflector. Here’s another variant he also made.