Construct3D 2018

The realm of 3D printing has enabled advances in processing, fabrication, and materials science. Specifically, polymer materials science and engineering has been traditionally taught and done as a research based on macromolecular science and conventional processing (molding, extrusion, thermoforming, etc.). This talk will focus on highlighting the transformative approach of 3D Printing in research of polymer materials, teaching of courses in polymer processing (structure-property relationship), mentoring of students, and STEM outreach all the way to projects related to Engineers without Borders. Using the platform of FDM, SLA, SLA, VSP, the various formats of polymer chemistry and processing has gained new light in teaching structure-property relationship in materials and defining new chemistries including nanocomposite materials. The Author will draw several examples of: 1) research in advanced nanocomposites, 2) teaching of EMAC 276 a course on processing and application of polymers, and 3) STEM outreach for K-12 through Engineers without Borders. Several projects will also be highlighted that has resulted in recent publications and funding opportunities which can set as an example for other academic faculty and institutions.

Most simply, chemistry is about the relationship of atoms in 3D space. For the chemistry student, appreciating these 3D arrangements is a critical step in understanding core concepts. Molecular models have been used in chemistry education for decades, and interacting directly with physical 3D models improves student learning outcomes. However, because of their cost and limited components, most chemistry courses are still dependent on 2D images or graphical representations of 3D structures. 3D printing technology offers a unique platform for creating highly-tailored molecular models to provide teachers new methods and activities for enhancing student learning. However, there are challenges inherent to printing molecular structures, chief among them being that complex structures often require many support structures, leading to increased material consumption, and significant post-printing processing. I will describe a software add-on for the Blender 3D modeling package that allows users to interactively split molecules into smaller components to simplify 3D printing. Automated placement of “pins” on bonds and “holes” in atoms allows for the rapid creation of complex ball-and-stick molecular structure models that are easy to print and assemble. Several course activities that make use of this software and 3D printed models, including lessons on molecular symmetry and protein folding, will be highlighted.

3D printing is a key tool for the Brazoswood Career and Technical Education department, especially in our robotics and rocketry classes. Get an in-depth look at how our high school students are utilizing free CAD tools to design and print custom components for competition robots and student-built rockets. Our CTE department has purchased a industrial grade 3D printer, capable of printing composite continuous fiberglass, nylon, and carbon fiber filaments. The material properties of the prints produced allows our students to prototype and refine designs that can then be used in real-world applications. In addition to creating durable prints for use in robots and rockets, our robotics students built their own FDM printer farm by assembling five open source kit printers. These will support the STEM program and raise money through the sales of prints to students and teachers while also educating our campus and community about 3D printing technology and applications. The robotics students learned about the history of 3D printing and the RepRap movement. Students applied for specific roles, including management, marketing, and assembly. They then worked in their teams to assemble, calibrate, and deploy the five printers.