This webinar was co-hosted by Doug Scott and Michael Gallagher. Both Doug and Michael are our Lemelson-MIT master teachers. Doug is a Robotics and Engineering teacher at Hopkinton High School, MA. Michael is a PLTW (Project Lead The Way) master teacher from the Saratoga Springs High School (New York). Both have extensive experience in engaging students in CAD and 3D-printing during invention projects. They shared their experiences and suggestions on CAD tools, purchasing and managing 3D-printers for classroom settings.