Design And Construction Of A Rapid Prototyping Machine: A Breakdown Of The Machine Subsystems Used To Learn Multidisciplinary Engineering Skills

Described by local professors and students as a “semester project on steroids”, students at the Oregon Institute of Technology set the lofty goal of designing and constructing a Rapid Prototyping (RP) machine based on an international community of “Rep-Rappers” (Replicating RP Machines) that was started at the University of Bathe, England . The idea is based on building machines that can reproduce almost all of the components to make copies of themselves using the RP process, and through collaboration with other groups, implement improvements to the previous generation of machines. By looking at the machine in terms of subsystems, multiple engineering strategies and tools were employed to complete the project. The students also had to consult with experts from other departments, local industry and the internet to gather information and resolve issues that came up during the six month period. The interest and excitement expressed by other students and the impressive display of skills demonstrated by the participants has created a buzz around the college, especially considering that a commercial (RP) machine was recently purchased for more than $24K. Challenging problems were faced by the team, including software bugs, parts that required CNC machining and electronics / software integration. As a result of the work done, the group has been approached about making machines for local high schools and participating in international collaboration projects. The machine is currently being enhanced to incorporate an improved electronics package and a G code based programming capability that will provide better reliability and control of the system.