paper crawler

• Components Used:  paper from a small box, screws. small aluminum angle, potentiometer, servo motor, arduino board and so on

• Description: 

Small aluminum angle is attached on the servo motor arm with 2 screws. A piece of paper is taped on this aluminum piece, to cause a movement of the crawler by touching the ground when rotating. The paper piece is pushing the body of crawler against to the ground in only one direction so that it does not stay at the same spot: the paper can bend in only one direction because of the geometry of the structure. Another small piece of aluminum is fixed in the box, to keep the crawler stable. 

• Code: the given example code is used.
• video available here: http://www.youtube.com/watch?v=WWYIgntdbW4