'The University of Texas at Austin, Bureau of Economic Geology'
Abstract
As additive manufacturing (AM) technologies advance and mature, the geometric
constraints imposed by fabricating 2D planar layers become increasingly important to overcome.
In the realm of light-driven AM fabrication, holography provides a promising avenue toward true
3D structures. Being capable of recording and reconstructing 3D information, holographic
shaping of the light field can enable direct 3D fabrication in photopolymer resins. We have
conceptualized, designed, and built a prototype holographic additive micromanufacturing
system, incorporating a liquid-crystal-on-silicon (LCoS) spatial light modulator (SLM) to
redirect light energy at the build volume by spatial control of the phase distribution. Here we
report the system design, design parameter trade-offs relevant for producing 3D structures, and
initial fabrication results.Mechanical Engineerin
