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3D Printer - EvCC engineering class

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Published on May 4, 2012

In this video, Everett Community College engineering students use the 3D printer and materials testing machine in their engineering lab in April 2012. Both pieces of equipment were also used extensively in the students' electric car project. The students started by designing the electric car using DS SolidWorks software and then created 3D models of the car using the 3D printer. Various computer simulations were performed to simulate the motion of the parts, analyze strength and stiffness of the material and structure, and optimize the aerodynamics of the car body. In addition to the numerical simulations on the computer, students conducted experimental testing on the actual structure and welding materials. They performed tensile tests - stretching the part until it breaks - to evaluate the real material's strength and stiffness. Three-point-bending flexural tests - applying force at the middle of a beam that is supported at two ends - were also used to select material and study structure stiffness and stability. The design of the car is gradually improving through this combined numerical and experimental analysis process. Video by instructor Xiaopeng Bi.

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