The file 'HO Scale Crossing Gate 3D Printer Model' is (stl) file type, size is 728.3KB.
Its here on Shapeways https://www.shapeways.com/product/UVKW84QGE/ho-scale-crossing-gate
Edit it online https://www.tinkercad.com/things/5wUpqJQzWrO
update:
05/13/17 uploaded file crossing gate (1).stl (some shapes were not touching)
HO_scale_crossing_gate.stl | 6.0MB |