The design models have been 3D printed and assembled. We made two devices, only the outer casings are different in the two models. One is printed on a SLS 3d printer (Nylon PA-12) and another one with an FDM 3D printer (PLA Black).
Both the models are working fine and were able to capture decent retinal images.
The SLS printed outer casing for OIO
The PLA printed and matte black painted OIO device