The incorporation of mechanically robust nanoscale fillers allows one to significantly improve the mechanical properties of polymers. One of AMI’s research programs focuses on fundamental studies that aim to develop an understanding of the structure-property relationship of such materials, with a particular interest in cellulose nanofibers isolated from renewable sources as the filler. This expertise was the starting point of discussions with the Swiss branch of 3D Systems, a company that is a world leader in photo-curable resins for rapid prototyping applications. A team of AMI researchers and 3D Systems engineers collaborated to improve the mechanical properties of resins used in rapid prototyping by applying AMI's approaches to mechanical reinforcement with nanoparticles to resins developed by 3D Systems.