Robotics is the exciting intersection of a number of engineering fields including mechanical engineering, electrical engineering, and computer science. This project was designed as the basis for a two-day workshop for high school age students to introduce them to engineering principles and giving them a jumping off point for exploring their interests further. There is something for everyone here, even if it is just for the art it creates. The design goals were:

• Easy to build.
• Easy to program.
• Did something interesting.
• Low-cost so participants could take it home and continue to learn.

With those goals in mind, here were a couple of the design choices:

• Arduino compatible for ease of programming.
• 4xAA battery power for cost and availability.
• Stepper motors for accurate motion.
• 3D Printed for ease of customization.
• Pen plotting with Turtle graphics for interesting output.
• Open Source so you could make one of your own!