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This article showcases a lesson developed by the authors to be a mindful and engaging introduction to 3D printing that positions students to maximize the output of the 3D-printing process by reducing print failures and inefficiencies. The big idea for this lesson is to have students learn and apply the concepts behind designing for manufacturability through the additive manufacturing process. To do so, students will explore various 3D-printed designs and consider the concepts of what makes those designs good or bad. These concepts include print orientation, infill, layer height, and support. Students will then be challenged to apply their acquired knowledge by engaging in an engineering challenge to optimize the speed, quality, and efficiency of a 3D-printed product by appropriately adjusting print settings within slicing software—helping to ensure that students know how to take care in printing objects in a way that maximizes the output of the printing process while minimizing the waste of materials and other resources. At the end of the challenge, students will evaluate and share both the print settings and the final features of the printed products to illustrate and reaffirm their knowledge from the lesson as well as determine which student team achieved the most ideal results for the challenge.