This roller can be used to print brick walls in hard foam like styrodur to make walls for your modell railway system in scale H0/00. It is so much faster than scratching the bricks with a knife or a screwdriver and is much more accurate.

You can print two rollers and glue them together to get a larger roller and you can scale the roller for other gauges like N oder 0.

Use the roller with evenly force and in a straight direction (e.g. guided by a ruler) to get best results. Previous treatment of the styrodur with wood glue or deep ground will harden the styrodur and improve the result.