It has 2 large EV3 moters, 1 medium, 1 large NXT motor. I also have a color/light sensor. I have 17 gears and 11 wheels. The wheels move the paper from place to place. I made my machine to hold the stamper with 4 rubber legos pieces. The 1 medium motor pushes the stamper down. The 2 large EV3 motors move the paper from place to place. The 1 large NXT motor operates a stopper. When the paper moves over the light sensor it starts a timer for 2 seconds. When the the piece of paper gets stamped the stopper moves away so the paper will move on to the end where the paper gets stacked up on top each other.
MindTechnic 