Denny Kramer, an engineering intern at Polaris Industries, gave a presentation summarizing his summer internship experiences. He utilized lean tools like A3 processes, spaghetti diagrams, and 5 whys to help reduce downtime on production lines. Some specific projects included redesigning material flow racks and station layouts to reduce non-value added time. Metrics showed improvements like an 11.5% increase in production and a 43% reduction in downtime. Kramer learned about lean principles and wants to do a design engineering internship next summer before graduating from Iowa State University in mechanical engineering.