Today I *finally* found time to photograph the parts that I got back from MicroTek a few weeks ago:
As you can probably see, the part on the left is unfinished. In the middle is an intermediate finish (~25µ" Ra), and on the right is a fine finish (~1.5µ" Ra). All three of these parts were printed on Addaero's Arcam A2X; their raw finish is about 600µ" Ra.
Incidentally, I'll note that photographing the surface finishes on these parts has been remarkably challenging. I probably need a strobe or something, but hey - it's a labor of love.
I'll be writing up the results in the next few weeks. Stay tuned!