Your very inspiring Frank. I love trains but I have a passion for the Steamers. I want to build an Engine House & roundtable so bad but I tell myself NO WAY :cry: until the Mill & Mining projects are done. I want to scratch build it & use an over the counter mechanism for the table itself. I do plan on working doors, I'm leaning more towards a push & pull type control similar to the old car choke rods before the electronic chokes came along. I have experimented with some servos from some old RC planes with good results but I think the manual choke rod type would be more practical. It's going to be good keeping up with your project. Thanks for taking the time to show.