For many years I have been a fan of the Sceniced and Undecided railway in the USA. They were tied in with the White River and Northern Railway which no longer exists but which had a working model railway on an N gauge layout. Somewhere there were details of how this was constructed. In the interim here is a link to the video. http://scenicedandundecided.net/video_20.htm The original website for the Sceniced and Undecided Animation page can be found at this link: http://scenicedandundecided.net/animation.htm
Have fun with it. This is my first post since joining 20 minutes ago. I have been so impressed that I wanted to join in the conversation.