High-detail, 3D-printable HO-scale tracked road milling machine for train layouts and dioramas. This watertight model includes the tracked chassis, milling drum housing and conveyor boom, plus a separate cab for easy painting and basing. Optimized geometry for reliable printing and small-part resilience, it fits HO/1:87 layouts and maintenance-of-way scenes. Files are supplied ready to slice; final printed size listed below.