1850s Insulated Van Freight Wagon 3D Print

A slender, narrow-profile freight wagon inspired by 1850s insulated vans with thin walls and small vents. Features no hatches for a clean, period-accurate aesthetic. Use supports for the thin walls and small vents to ensure a clean print.
Size as supplied: 100.0 x 35.1 x 36.4 mm (L x W x H), about 1:92 scale.
Print settings: PLA, 0.12-0.16 mm layers, 0.4 mm nozzle (0.2-0.25 mm for extra-fine detail), 3 walls, 15% infill, 3-5 mm brim.
Supports: needed for undersides and overhangs. Use tree/organic supports touching the build plate only; enable 'support on build plate only' to keep detail faces clean. Support Z distance 0.2 mm and interface layers make removal easy.
Pre-oriented: the 3MF is already placed upright on the build plate (z = 0) - print it as supplied, no rotation needed.

Rescale table (always scale uniformly):
- As supplied: about 1:92 (real object about 9.2 m on its longest side).
- HO 1:87: scale uniformly to 106% (longest side 106 mm).
- OO 1:76.2: scale uniformly to 121% (longest side 121 mm).
- N 1:160: scale uniformly to 58% (longest side 58 mm).
- TT 1:120: scale uniformly to 77% (longest side 77 mm).
- O 1:48: scale uniformly to 192% (longest side 192 mm).

Included files: the 3MF model, a print guide PDF (settings, supports, bed placement, colours, painting, reference views), a dimensions and scaling sheet, orientation and support tips, a real-world inspiration note and a README.

Images: all pictures are digital renders of the 3D model, not photos of a printed copy.