model development The emergence of a model based on a real model - it is a locomotive or a wagon - is always a big challenge for Roco. Much time and capital must be used prior to the mobile dreams in H0 and N literally bring to rail. Photos of examples help you decide which models are realized. To reconstruct the original in every detail can, detail photos are needed. Based on these photos our engineering department is working on the preparation of detailed plans. Here, the developments in the latest CAD technology can be realized. Now the machines are "fed" with data of the structure. Even if the technical lead is huge, you can not do without on delicate handwork to our injection molds.