Steam Locomotive Firefly

**Perfil de Impresión Estándar - BIQU B1**
- Thin Walls: Yes
- Skirt: 6 lines (1 layer high)
- Support Angle: 40°
- Support Density: 1
- Interface Height: 0.05mm
- Tree Support: Ø1.5mm branches / Ø2.5mm base
- Tree Top Rate: 1

The Firefly is an early 2-2-2 express steam locomotive known for its elegant design, tall driving wheel, and smooth performance. Built for fast passenger service, it represents one of the pioneering engines of early mainline railway travel.