University of Colorado @ Boulder, Electrical, Computer & Energy Engineering
Abstract: Additive manufacturing of polymers is now an established technique in industries from athletic wear to orthodontics. However, these methods are limited in further societal impact because each part requires hours of labor from trained technicians working in chemical handling facilities. A recently introduced technique, volumetric additive manufacturing (VAM), has the potential to dramatically change this landscape. VAM projects hundreds of images into a container of prepolymer resin, printing the 3D part in one step that takes ~10 seconds. The closed volume enables automation of chemical post-processing and enables entirely new classes of materials to be printed. Realizing these advantages will require simultaneous advancements in the three foundations of VAM: the optical architecture (1) that projects images found through numerical inverse optimization (2) into a volume of photo-responsive material (3). I will present work our group is doing in each of these three coupled areas. Specifically, I will show a new class of VAM optical architecture that can print into arbitrarily large, flat packages instead of the current small cylindrical vials. I will describe advances in computational techniques to calculate VAM image sets for new architectures and novel materials. Finally, I will show new classes of materials that can be printed by VAM to achieve printed part properties unlike any available from existing polymer AM methods.
All lectures in CoorsTek 140 unless otherwise noted