Tomographic printing is a 3D printing technique that enables fast, supportless fabrication wherein light is projected through a rotating vial containing a photocurable resin. Usually, vial is placed in an index-matching bath to eliminate refraction at the vial surface. In this talk we will describe our approach to build an easy-to-use tomographic printing system that eliminates the index-matching bath. We use a computational ray-tracing approach to pre-distort projection images to exactly counteract the distortion from refraction at the air/vial interface and projector non-telecentricity. We will show simulation and print examples and expand on recent improvements in our system.
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