The Colorado School of Mines (CSM) offers a combined capstone design experience for mechanical, civil, electrical and environmental engineering students. In a recent re-invention of our design curriculum, a new emphasis on design methodologies has been implemented. Many of these design methods have origins in the design of electro-mechanical products, and it is certainly in these areas where the most vibrant design communities seem to reside. Yet in a combined setting, analogous design processes appear to exist in a broader engineering design community. This paper describes the capstone design program at CSM, with a focus on the methods that we are teaching and how they translate between disciplines. The lessons learned in such a translation not only illuminate how engineering design may differ in other disciplines, but also may reveal new perspectives on mechanical design processes.