Electric1,2, Magnetic3, and Thermal gradient5,6 fields are three important methods used in Field Assisted Self Assembly (FASA) of polymer blends, block copolymers, liquid crystals and polymer nanocomposites. These assisted assembly techniques have been used in laboratory scale, but for potential applications such as flexible electronics7, membranes8, supercapacitors9, fuel cells10, photovoltaic’s etc. a large scale manufacturing platform is needed. We introduce a novel roll to roll process developed in our laboratories to achieve "Z-direction" alignment of nanostructural units. A 40ft line was designed which uses a casting system to deposit desired thickness of liquid such as a monomer ,polymer solution as well as melt up to 6" wide on a flexible substrate. The substrate is then carried to an electric field application zone which consists of temperature controlled opposing roll to roll electrodes. The electric field applied can be a DC, AC or a biased AC, hence using the various fields we can maximize the orientation by increasing the dielectric contrast between the particles and the matrix. If orientation and self-assembly through magnetic field is desired, the second tool located downstream is activated. This electromagnet is capable of applying magnetic fields up to 2.2 T to the material supported by a flexible substrate through the opposing poles. This line also contains a movable UV lamp which can be used to freeze the structure of required morphology using photocurable resin after electric field or magnetic field application zones. Electric and magnetic field alignment of particles and polymer chains is studied through real time birefringence measurement, to determine various parameters effecting the orientation of particles/phases inside a polymeric film under the magnetic or electric field. The birefringence system is based on the solution drying process developed in our lab11. In this talk, we will review our recent results on the use of this machine to produce Z-( thickness direction) functional films for capacitors, piezoelectric sensors, nanogenerators and transparent audio speakers12, and piezoresistive 13,14 films at a very low cost. References: (1) Park, C.; Robertson, R. E. Materials Science and Engineering: A 1998, 257, 295-311.(2) Kyrylyuk, A.; Zvelindovsky, A.; Sevink, G. Macromolecules 2002, 35, 1473-1476. (3) Osuji, C.; Ferreira, P. J.; Mao, G.; Ober, C. K.; Vander Sande, J. B.; Thomas, E. L. Macromolecules 2004, 37, 9903-9908. (4) Takahashi, T.; Murayama, T.; Higuchi, a; Awano, H.; Yonetake, K. Carbon 2006, 44, 1180-1188. (5) Mita, K.; Tanaka, H.; Saijo, K.; Takenaka, M.; Hashimoto, T. Macromolecules 2008, 41, 6787-6792. (6) Liu, C.-Y.; Bard, A. J. Chemistry of Materials 2000, 12, 2353-2362. (7) Wong, W. A. Salleo,Flexible Electronics: Materials and Applications ,2009. Springer (8) Oren, Y.; Freger, V.; Linder, C. Journal of Membrane Science 2004, 239, 17-26. (9) Park, B.; Im, K.-J.; Cho, K.; Kim, S. Organic Electronics 2008, 9, 878-882. (10) Gasa, J. V.; Weiss, R. a.; Shaw, M. T. Journal of Membrane Science 2008, 320, 215-223. (11)Unsal, E.; Drum, J.; Yucel, O.; Nugay, I. I.; Yalcin, B.; Cakmak, M. The Review of scientific instruments 2012, 83, 025114. (12) A, Yildirim R, Rahimi S. Shams Es‐haghi A. Vadlamani F. Peng M.Oscai M. Cakmak, Adv. Mater. Technologies, Dec 2018 (https://doi.org/10.1002/admt.201800425) (13) Chen, Yuwei; Guo, Yuanhao; Batra, Saurabh; Unsal, Emre; Wang, Enmin; Wang, Yanping; Liu,Xueqing; Wang, Yimin; Cakmak, M. RSC Advances (2015), 5(112), 92071-92079 (14) Chen, Yuwei; Guo, Yuanhao; Batra, Saurabh; Wang, Enmin; Wang, Yanping; Liu, Xueqing; Wang, Yimin; Cakmak, M. Nanoscale (2015), 7(35), 14636-14642