Marble machines are a fun and challenging reason to do engineering for the sake of engineering. [Engineezy] adds some color to the theme, building a machine to create 16×16 marble images automatically ...

I don't know about you, but when I was kid I had boxes and boxes of LEGO that my parents bought me to keep me out of their hair. This LEGO wasn't sorted in the slightest, in fact it probably couldn't ...

Introduction Have you ever used a coin-sorting machine to separate pennies, nickels, dimes and quarters? When you need to separate things that are all mixed together, using a machine can be much ...