This instructable will tell how to make a floor cleaning robot that uses Vex Robotics System as a base platform.
The robot uses a paint roller to pick up crumbs and dirt and moves them into a dustpan. Also, a water tank continuously drips water onto a mop that rotates back and forth. Dragging behind the bot is a towel that dries the floor and picks up any leftover dirt.
The robot also navigates it way around by following a line of tape, so you don't have to watch over it or control it.
This is an entry for the 13-18 age category in the robot contest.