About this 3D model

Its the model of the GGB (Gornergratbahn, famouse Swiss Railway) Bhe 2/4 “Nostalchic”. The modell is drawn with the original blueprints of the Train. The wheelcarriage is simplyfied. Attention!!! All holes need to be drilled out with a 4mm Drill! The Wheelcarriage is made for 3mm Melt in Threads