the 1909 plan of Chicago by Daniel Burnham was revolutionary though it was realized in some ways his vision for the center of the city was not realized as planned. Instead of a grand city center we have the Circle Interchange at the axis of two expressways. How can we make a new center for the city in the 21st century? Open Source Manufacturing is a project that looks at a scalable framework that allows for the expansion of physical space as needed for 21st century production environments. Keep the the major functionality of the circle but bringing 21st century manufacturing and making back to the core of the city. (2009)