With more than 75 years of collective experience using and teaching others to use the roomful of fabricators, drills, saws, presses, welders and 3D proto-typing machines in the Center for Design and Fabrication in the basement of McConnell Hall, the trio of instructors, Eric Jensen, Greg Young and Dale Renfrow, guide students in a range of departments—mathematics, biological sciences, engineering, physics, astronomy—in creating and manufacturing all manner of tools, devices and household gadgets.