Spectrum is a ship based of the web series Con Man with Alan Tudyk. The ship doesn't feature in the show, but the main character's backstory has him on a sci-fi/Firefly like show called Spectrum and this is that ship.
About this creation
The ship itself only shows up in a trailer that introduces the main character in the show. But it looked like an easy enough design so I jump at the opportunity.
The ship got a lot larger than I thought it was going to, and I didn't have much to work with other than a couple second clip of the ship flying by. I didn't think I'd want it to be minifig scale because I didn't know how big it really was, but I think I got pretty close to micro scale.
The problem I ran into very early on is that there is a rotating piece on the back of the ship that's suspended by energy beams. There was no real way to do that with Lego that didn't involve some kind of axis and giant wheel. I did try to do a large tube ring that sat suspended on some tires. As the tires moved, so did the ring. But it was too hard to keep the ring in a decent circle, and no way to keep it from falling apart once enough pressure was place on the tires. So I scrapped the idea.
The best of the build was I was actually able to contact the visual supervisor for Con Man who had to get permission for Alan Tudyk himself to allow access to the video file used in the show. Once I had that, I got a better look at the ship. The down side was that I was already past the main framework phase and my version is longer and more slender than the actual version. But it's still very similar and the designer and video editor really liked it.
I was able to keep a cavity open for a motor and battery. I don't actually own one, but I was able to borrow one for an event. The ring portion does rotate and I got it geared down enough that it matches about how fast it moves in the video. This was my first time working with motors and gears that didn't involved the Futuron monorail. So I'm pretty pleased overall with how it turned out.