Knoxville is not only considered to be a center of innovation, thanks in large part to the Oak Ridge National Laboratory (ORNL), but is also majorly focused on 3D printing. Eastern Tennessee is one of the most popular and busy areas for additive manufacturing in America...and maybe even the world! One of the companies eyeing Knoxville is Local Motors, an Arizona-based automaker that develops 3D printed cars. Read more at 3DPrint.com: https://3dprint.com/158125/3d-printi...ast-tennessee/