Here is one of the holo-lenses from R2D2:s head:
These are made with Ultimaker 3, and high resolution print, about 22hours printtime, but the details are looking sharp and good.
Large logic (rear) on the Dome, in high-resolution, printed on a Ultimaker 2 with high-resolution settings from the Simplify3D slicer.
This is made on a Forge Finder SE, with the same high resolution settings, about 14 hours printtime. We decided to go for High resolution on all details, even though it makes every print about two to three times longer. But the quality of the prints are really worth the wait!