We spent more time on the Haas MiniMill finishing up a crucial component of our device.
After a lot of sanding + painting, we also ended up with the part seen below:
This part was printed on the Dimension Elite FDM printer in ABS. Repairs were made with the XTC-3D compound, then the entire part was coated with sand-able primer and wet sanded to 2000grit. It was then painted with Montana Black and given a final coat of matte varnish.
Directions for finishing 3D printed parts in a similar fashion can be found here