I didn't forget to post the demo video of the completed engine, I caught a cold on the second week of this month and was unable to go to the museum until yesterday (due to all other weekends being full). But anyway here is the demo video I put together of the engine...
I showcase the lighting and sound functions, while it's static, in the first part of the video. I also demo one of the couplers working. The rest of the video is while it's moving, as well as a video demonstrating it changing directions so it's in trailing mode.
