At the end of part 1, I was a little frustrated with getting the rivets to come out nice. My uncle mentioned a "rivet fan" as a tool for spacing rivets. But I can't get one reasonably priced and quickly.
So I woke up early with the realization that I could make my own. A quick trip to the hardware store, a little tinkering in CAD, load some filament in the 3D printer, and I am on my way to a homebuilt rivet fan!