Over the course of six weeks, third grade students worked on the CityX project, an interdisciplinary collaboration between the library, art, and engineering. Students were challenged to pick a problem faced by a resident of CityX, an imaginary planet settled by humans. They then had to come up with an original idea, sketch their invention, turn it into a clay model, and finally, use Tinkercad to create a 3D model. Their inventions were then printed by Mrs. Lamere and Mrs. McCann using the new 3D printers in the Engineering Room. We wrapped up with a parent showcase, but students are also working with Ms. Bery to record themselves talking about their inventions.