WARRENSBURG – Students are helping frontline health care providers battle the coronavirus, COVID-19, state Sen. Denny Hoskins said. Representing Ray and several other counties, Hoskins said two University of Central Missouri students, Matthew Argotsinger and Cameron Rogers, began using 3D printers to make ear guards. The guards reduce discomfort from longterm mask use. “I’m proud of these two innovative students,” Hoskin said. While inside a UCM classroom, the innovation design and drafting technology students, Argotsinger and Rogers, stood among three, 3D printers. Being fed design specifications by computer, the printers go into production mode for the ear guards, Arogtsinger said. Production involves the printer spraying a thin layer of “molten plastic” into “a precise pattern” needed for the guards, he said. But the time the first layer is sprayed from one end of the pattern to the other, the next layer of plastic is ready to apply until, layer upon layer, the desired object…