Michele is working in HO and asks a question about laying ballast:

“When making ballast, I add water before putting the glue. I get water bubbles and all my ballast gets out of place. I tried to add a bit of soap to the mixture but still no luck. Is there any other way to glue the ballast without that problem?”

Bob asks about an HO scale rolling lift bridge:

“Does anyone know of a manufacturer that makes a kit or built up rolling lift bridge?”

Trevor has an N scale layout and has question on weathering railway architecture:

“I am wondering what would be the most accurate way to weather railway architecture. Most literature covers locomotives and stock, but just where do the weather marks go on viaducts, stations, engine sheds etc.”

To answer one or all of these questions click on the green comments tag below.