Any curious passerbys may have noticed the mysterious mechanical hum of machinery emanating from room 118 throughout the past week. The unlikely culprit? Four 3D printers, courtesy of Indy's own "1st Maker Space." Dr. Pignan Shi, teacher of the new "Introduction to Engineering" class, uses the printers daily in his lessons. For high school students, the lessons learned in the class are invaluable: "Students learn 3D design and printing and how the design process works."