Have you ever gone to slice a cake and ended up creating funky, uneven slices that weren’t as attractive as you’d hoped? Cutting a cake badly has happened to everyone at one time or another. Fortunately, it doesn’t take anything away from the taste of a cake, but using a gadget like the Mindstorm Cake Cutter would ensure that you get perfectly shaped cake slices, too. The mechanized cake cutter was built from Legos and uses a Mindstorm NXT processor, two touch sensors and three motors to do its work. The user simply enters the number of slices that they want to get from the cake, from 1 to infinity (although you would want to choose a number that would provide satisfying slices, of course), and the machine divides that cake into perfectly even slices. The “blade” is actually the lid of a can, which works like a pizza cutter to roll through the cake.
If you were to build on yourself, you might need to have a larger “knife” to cut through deeper layer cakes and you would definitely want to give the blade a spray with vegetable oil to help it slide through sticky frosting and make it easy to clean. A sharper blade (such as one that is actually from a pizza cutter) would let you cut pizzas and other, tougher foods. It would be fun to have some Jetsons-esque automation in the kitchen with a few robots to help out. Cake cutting might not seem like the most useful thing for a robot to do, but mixing and baking the cake is the fun part, so I would much rather have the robot help me out by cutting any number of perfect slices in my cake. That said, I don’t think I’m handy enough to build myself a cake cutting robot just yet, so I’ll stick to the old fashioned method of using knives for now!