Machines Making Machines: 3-Spark’s ‘Donatello’ Creates Smarter 3D-Printed Parts A little over a year ago, Rich Ranky was at Northeastern, working on research for his PhD about how to build a force-measuring sensor into a plastic component. Back then, Ranky was injecting conductive slurry into plastic pieces with a caulking gun. Now, his 3D printer, Donatello, prints patented sensors that measure temperature, vibration, heart […]